10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)

þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 27, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file no. 001-36414

iROBOT CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	77-0259 335
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
8 Crosby Drive, Bedford, MA	01730
(Address of principal executive offices)	(Zip Code)

(781) 430-3000

(Registrant’s telephone number, including area code)

_______________________________________________ 

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Common Stock, $0.01 par value per share        The NASDAQ Stock Market LLC

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:

None

Indicate by check-mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  þ        No  ¨

Indicate by check-mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨        No  þ

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ        No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  þ        No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	þ	Accelerated filer	¨	Non-accelerated filer	¨	Smaller reporting company	¨
				(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨        No  þ

The aggregate market value of the Common Stock held by nonaffiliates of the registrant was approximately$1,160,000,000 based on the last reported sale of the Common Stock on the NASDAQ Global Market on June 28, 2014.

As of February 9, 2015, there were 29,672,165 shares of the registrant’s Common Stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The registrant intends to file a definitive Proxy Statement pursuant to Regulation 14A within 120 days of the end of the fiscal year ended December 27, 2014. Portions of such Proxy Statement are incorporated by reference into Part III of this Form 10-K.

iROBOT CORPORATION

ANNUAL REPORT ON FORM 10-K

Year Ended December 27, 2014

TABLE OF CONTENTS

		Page
	Part I
Item 1.	Business	3
Item 1A.	Risk Factors	11
Item 1B.	Unresolved Staff Comments	20
Item 2.	Properties	20
Item 3.	Legal Proceedings	21
Item 4.	Mine Safety Disclosures	21
	Part II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	22
Item 6.	Selected Financial Data	23
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	39
Item 8.	Financial Statements and Supplementary Data	40
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	66
Item 9A.	Controls and Procedures	66
Item 9B.	Other Information	68
	Part III
Item 10.	Directors, Executive Officers and Corporate Governance	68
Item 11.	Executive Compensation	68
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	68
Item 13.	Certain Relationships and Related Transactions, and Directors Independence	68
Item 14.	Principal Accounting Fees and Services	68
	Part IV
Item 15.	Exhibits, Financial Statement Schedules	68

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PART I

ITEM 1.BUSINESS

This Annual Report on Form 10-K contains forward-looking statements. All statements other than statements of historical facts contained in this Annual Report on Form 10-K, including statements regarding our future results of operations and financial position, business strategy, plans and objectives of management for future operations, and plans for product development and manufacturing are forward-looking statements. These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. We discuss certain of these risks in greater detail in the “Risk Factors” section and elsewhere in this Annual Report on Form 10-K. Also, these forward-looking statements speak only as of the date of this Annual Report on Form 10-K, and we have no plans to update our forward-looking statements to reflect events or circumstances occurring after the date of this Annual Report. We caution readers not to place undue reliance upon any such forward-looking statements.

iRobot, Roomba, Ava,  Scooba, Mint, ViPR, NorthStar, Create, PackBot, FirstLook, iAdapt, Aware, Home Base, Looj, Braava, Kobra, AeroForce, uPoint, AeroVac, Mirra, and Virtual Wall are trademarks of iRobot Corporation.

Overview

iRobot Corporation (“iRobot” or the “Company” or “we”) designs and builds robots that empower people to do more. For nearly 25 years, we have developed proprietary technology incorporating advanced concepts in navigation, mobility, manipulation and artificial intelligence to build industry-leading robots. Our home care robots perform time-consuming domestic chores while our defense and security robots perform tasks such as battlefield reconnaissance and bomb disposal, and multi-purpose tasks for law enforcement agencies and first responders, as well as certain commercial users. Our remote presence robots expand the reach of medical care by connecting physicians with patients from anywhere in the world and also provide autonomous telepresence capabilities enabling remote workers to more personally collaborate throughout the workplace. We sell our robots through a variety of distribution channels, including chain stores and other national retailers, through our on-line store, through value-added distributors and resellers, and to the U.S. military and other government agencies worldwide.

Since our founding, we have accumulated expertise in all the disciplines necessary to design and build durable, high-performance and cost-effective robots through the close integration of software, electronics and hardware. Our core technologies serve as reusable building blocks that we adapt and expand to develop next generation and new products, reducing the time, cost and risk of product development. Our significant expertise in robot design and engineering, combined with our management team's experience in consumer, military and enterprise markets, positions us to capitalize on the growth we expect in the market for robot-based products. We believe that the sophisticated technologies in our existing applications are adaptable to a broad array of markets such as law enforcement, homeland security, commercial cleaning, elder care, energy services, home automation, healthcare, video collaboration, landscaping, agriculture, construction and other vertical markets.

Over the past twelve years, we have sold more than 13 million of our home care robots. During that time, we also sold more than 5,000 of our defense and security robots, most of which have been sold to the U.S. military and deployed on missions in Afghanistan and Iraq, and more recently to state, local and international government entities. In 2013, we began selling remote presence telemedicine robots to InTouch Health for resale into the healthcare market as part of our joint development collaboration with InTouch Health. In 2014, we began selling the Ava 500 Video Collaboration robot, a remote presence solution for the enterprise market.

Our total revenue for 2014 was $556.8 million, which represents a 14% increase from 2013 revenue of $487.4 million. This increase in revenue was attributable to a $79.6 million increase in revenue in our home robots business as a direct result of growth in both domestic and international markets, which was primarily driven by expanded distribution of our Roomba 800 series robot worldwide, growth in China and the replacement of the Roomba 500 series robot with the higher-priced Roomba 600 series in club stores. The increase in home robots revenue was partially offset by a decrease in revenue of $4.5 million in our defense and security business related to reductions in new unmanned ground vehicle robots, associated with ongoing budget reductions within the U.S. government. We began selling our remote presence robots into the healthcare market and the enterprise market in 2013 and 2014, respectively. However, these sales have not yet generated meaningful revenue. Our home robots revenue represented 91% of our total 2014 revenue compared to 88% in 2013. We anticipate that our revenue for the next few years will be primarily driven by our rapidly growing home robots business and that our home robots revenue will continue to comprise approximately 90% of our total revenue in the near term.

We achieved a number of significant milestones in 2014 which we believe will assist us in continuing to generate profitable growth in 2015 and beyond. In particular:

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• We significantly expanded the distribution of our Roomba 800 series robot, featuring our new AeroForce Performance Cleaning System. Significant revenue and margin contribution, along with high customer ratings have made the Roomba 800 launch one of our most successful to date.

• We continued to increase our investment in marketing programs in our home robots business, which resulted in greater brand awareness and revenue growth. Our strategy in 2015 will be similar with continued focus on brand awareness and customer conversion.

• We announced the uPoint Multi-Robot Control (MRC) system, a universal control system for our line of defense and security robots. The uPoint MRC system, which is our first multi-robot tablet controller, provides precise and reliable control through an intuitive interface for any of our unmanned ground vehicles.

• We launched the Ava 500 Video Collaboration robot which blends our autonomous navigation capabilities with Cisco’s TelePresence, to enable people working off-site to participate in meetings, presentations and events where movement and location spontaneity are important.

• We continued our successful Science, Technology, Engineering and Math (STEM) outreach program with the launch of Create 2, a preassembled robot platform that gives educators, students and developers firsthand robotic programming experience.

• We have seen significant growth in sales into China due to strong demand for our products, and this region will continue to be a focus of our Company.

Strategy

We are a technology company with the goal of designing and marketing innovative robots that empower people to do more. Every robot is created with a person in mind. We strive to drive innovation, serve as an industry catalyst and change the world by fueling the era of robots. We intend to increase the penetration of our products in existing markets, expand existing products into new markets, and develop and launch new products into current and adjacent markets. Our strategy is to maintain a leadership position by delivering robotic technology-based remote presence and automated home maintenance solutions that delight our customers and anticipate their needs, while extending our technical leadership in the areas of autonomous navigation, manipulation and cloud connectivity and services. With increasing levels of autonomy, continued mobility improvements, more sophisticated sensor suites and advanced human interfaces, remote presence systems will expand in effectiveness and efficiency and reduce the requirements for actual physical operator presence and control. In the area of automated home maintenance, we seek to improve the quality of life with robotic solutions requiring as little human physical intervention as possible. Key elements of our strategy include:

Talent: Investing in our people and our culture.    To develop and integrate the best technology and to be the most innovative robotics company, we must attract the most talented people across our functional areas. Our success is directly related to the talents and abilities of our workforce, and to a culture, work environment and leadership that supports its development and growth. Our strategy focuses on transforming our company into one of the most attractive workplaces for those seeking to participate in the robotics field.

Technology: Investing in robotic technology and products to build better robots.     A better robot lives in our world by moving around its environment more intelligently, by cooperating with the people it serves more compellingly, and by physically interacting with its surroundings more effectively. We strive to achieve and sustain world leadership with best-in-class technology in the areas of autonomy, navigation, cloud robotics and manipulation. Our superiority in user experience comes from leveraging the powerful capabilities of the connected world combined with thoughtful, intuitive design. We are committed to developing, maturing and integrating these technologies to support our business and make these a reality in our products. We implement these technologies with strict cost requirements to support our high-margin, profitable business model.

Tempo: Investing to improve our agility, speed and operational efficiency.    We strive to increase our pace of innovation and bring compelling products to market more quickly in a cost-effective and highly reliable form. We are committed to refining our innovation and product development culture and processes to deliver results faster by increasing the pace of development, gaining efficiencies through designing and leveraging modular architecture and reusable hardware and software components across products, and utilizing remote software updates and cloud computing to provide rapid cycles for release of new features in the installed base of our products.

Brand.  We invest in building a company with a vision, that strives to solve difficult problems, and empowers people to do more. We strive to achieve this image by designing high-quality robots with a recognizable look and feel and a streamlined ease of use, by employing impactful marketing, and by continuing to give back to the community. We invest in building and advertising one unified, global brand across all of our business units.

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Technology

We are focused on behavior-based, artificially-intelligent systems developed to meet customer requirements in multiple market segments. Our systems are designed to move around their environments intelligently, by cooperating with the people they serve and by physically interacting with their surroundings.

Our robots rely on technology related to navigation, cloud robotics and manipulation to accomplish their missions autonomously.

Autonomy.    Our robots employ intelligent autonomy because, without autonomy, robots require human attention. Autonomy requires, among other things, advanced navigation and dynamically updated mapping. We seek to achieve and sustain a leadership position in navigation and mapping to enable a higher level of autonomy.

Navigation.    Our mobile robots navigate through their environment in a variety of ways. Some do it simply by reacting to encounters with obstacles. Others use more sophisticated means that make use of maps to plan out paths, track their travel, and determine their location in the environment. Intelligent navigation empowers our robots to operate autonomously with purposeful intent. Autonomous navigation is the key enabler for our current products, ranging from smarter robotic floor care products to autonomous Ava 500 robots and unmanned ground vehicles.

Cloud Robotics.    Connectivity and cloud services are important because they can leverage additional computational resources and capabilities. Cloud robotics refers to cloud-based shared services that solve robotic challenges and enhance robots’ capabilities. By using the power of off-board computing and storage, it is possible to develop algorithms that aid with object recognition, post-process and store large maps, and share data between multiple robots operating in the same environment. Cloud robotics allows our robots to maintain operating duration and mobility while continuing to implement advanced technology.

Manipulation.    Manipulation means physically interacting with the world to move or control objects. It is ultimately what sets robots apart from any other technology. It includes, but is not limited to, arms, hands and jamming balloons. For example, our defense and security robots employ manipulation capabilities with varying lifting capacity and range of motion.

Combining these four components, we have created proprietary, reusable building blocks of robotics capabilities, including mobility platforms, manipulators, navigation and control algorithms and user interfaces. Our technology building blocks typically allow us to take a known platform and modify it for a new mission instead of starting from scratch for each application. We believe this allows us to design and develop innovative robots quickly and cost-effectively.

Products

We design and market robots for the consumer, defense and security, telemedicine, and mobile video collaboration markets. With over two decades of leadership in the robot industry, we remain committed to establishing robot and software platforms for invention and discovery, building key partnerships to develop mission-critical payloads and creating robots that improve the standards of safety and living worldwide.

Consumer Products

We sell various products that are designed for use in and around the home. Our current consumer products are focused on both indoor and outdoor cleaning applications. We believe our consumer products provide value to our customers by delivering a better way to clean and by freeing people from repetitive home cleaning tasks.

We currently offer multiple Roomba floor vacuuming robots with varying price points ranging from $299 to $699 based upon features and performance characteristics. Our Roomba robot's compact disc shape allows it to clean under kick boards, beds and other furniture, resulting in cleaner floors since the Roomba can access more of the floor than standard upright vacuum cleaners. In addition, Roomba eliminates the need to manually vacuum -- it cleans automatically upon the push of a button or through scheduling. The Roomba 600 series robots offer a three-stage cleaning system which thoroughly vacuums every section of the floor multiple times, as well as AeroVac technology and improved brush design enabling the robot to better handle fibers like hair, pet fur, lint and carpet fuzz. The Roomba 700 series robots offer improved debris pick up, a larger debris bin that vigorously pulls debris and hair off brushes into the bin, and dual HEPA air filters that capture dust particles as fine as 0.3 microns. In 2013, we introduced the revolutionary Roomba 800 series robots that incorporate new brushless, counter-rotating extractors that amplify suction for superior performance over bristle brushes, while requiring less maintenance than previous Roomba models.

We currently offer the Braava automatic floor mopping robots designed exclusively for hard surface floors with a price of $299 based upon performance features. These robots provide a different cleaning approach than our Roomba products. The Braava automatically dusts and damp mops hard surface floors using popular cleaning cloths or our specially designed reusable microfiber cloths, and includes a special reservoir that dispenses liquid throughout the cleaning cycle to keep the cloth damp.

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In January 2014, we introduced the Scooba 450 floor scrubbing robot with a price point of $599. Unlike a conventional mop that spreads dirty water on the floor, Scooba will apply only fresh water and cleaning solution to the floor from a clean tank. Scooba will clean dirt and grime, is safe for use on all sealed, hard floor surfaces, including wood and tile, and is smart enough to avoid carpet. The Scooba 450 uses the new Scooba Three-Cycle Cleaning Process that automatically sweeps and pre-soaks, scrubs and finishes with a final squeegee while washing away bacteria.

Our Mirra Pool Cleaning Robot is used to clean residential pools and removes debris as small as two microns from pool floors, walls and stairs. Mirra is brought to market under the iRobot brand through a relationship with Aquatron, Inc., which developed the pool cleaning robots. Our Looj Gutter Cleaning Robot was designed to simplify the difficult and dangerous job of gutter cleaning. The Looj cleans an entire stretch of gutter, reducing the number of times a ladder must be repositioned and climbed during gutter cleaning. The Looj also features a detachable handle that doubles as a wireless remote control, providing full control of the robot while cleaning.

Defense and Security Products

In defense and security product markets, we currently offer several unmanned ground vehicles. Our tactical ground robots include the combat-tested 510 PackBot, the 310 SUGV, the 110 FirstLook small, light, throwable robot, and the 710 Kobra multi-purpose robot capable of carrying heavy payloads. The PackBot, SUGV, FirstLook, and Kobra robots comprise a family of robots using many common platform components and offer our patented flipper technology that enables robots to easily climb stairs, navigate rubble, and penetrate inaccessible areas. These robots, which will begin to utilize the uPoint MRC system in 2015, a universal control system for our line of defense and security robots, are designed to keep war fighters and public safety officials out of harm's way and are designed for high-performance, durability and ease of use while performing search, reconnaissance, mapping, bomb disposal and other dangerous missions. As of December 27, 2014, we have delivered more than 5,000 robots to military and civil defense forces and research communities worldwide. The robots are currently priced between approximately $20,000 and $600,000 per unit, depending on model, configuration and quantities ordered.

We continue to refine the PackBot product line, focusing on enhanced modularity and providing new capabilities to support a variety of mission scenarios. Our unique Aware 2 software is incorporated into the advanced 510 PackBot chassis and operator control unit. As a result, PackBot can support multiple configurations and payloads with the same chassis and operator control unit, providing customers with a single robot capable of performing a variety of missions. We also utilize Configure-To-Order (CTO) procurement options for our commercial 510 PackBot, allowing customers to tailor the product to their specific mission needs. The combined benefits of the Aware 2 software and CTO procurement options establish the 510 PackBot as a truly modular multi-mission robotic platform.

The 110 FirstLook is an expandable, lightweight robot that performs persistent observation and investigates dangerous and hazardous material while keeping its operator out of harms way. The 310 SUGV is a lightweight, backpackable robot well- suited to dismounted operations. It has a modular design that accommodates a wide range of optional payloads and sensors, including a dexterous manipulator, and can easily climb stairs, roll over obstacles and enter inaccessible and dangerous areas. The 710 Kobra is a powerful, rugged, fast robot that supports or carries multiple and heavy payloads, and can lift up to 330 pounds.

Remote Presence Products

We currently have two products based upon our Ava mobile robotics platform. The U.S. Federal Drug and Administration approved RP-VITA telemedicine robot expands the reach of medical care by connecting physicians with patients from anywhere in the world. The RP-VITA combines the latest in autonomous navigation and mobility technologies developed by iRobot with the state-of-the-art telemedicine and electronic health record integration developed by InTouch Health. The RP-VITA, which is sold to healthcare customers by InTouch Health, was introduced in 2012 and began shipping in early 2013. Our Ava 500 Video Collaboration robot, which we began selling in 2014, delivers autonomous telepresence to the enterprise market, enabling remote workers to more personally collaborate throughout the workplace. The Ava 500 blends together our autonomous navigation capabilities with Cisco’s TelePresence to enable people working off-site to participate in meetings, presentations and events where movement and location spontaneity are important.

Strategic Alliances

In addition to our internal technology development, we leverage relevant robotic technologies through licensing, acquisitions and/or other partnerships. These strategic alliances are an important part of our product development and distribution strategies. We rely on strategic alliances to provide technology, complementary product offerings and increased and quicker access to markets. We seek to form relationships with organizations that can provide best-in-class technology or market advantages for establishing iRobot technology in new market segments.

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In 2011, we signed a joint development and licensing agreement with InTouch Health, a leading remote presence telemedicine solution provider, to explore potential opportunities for healthcare applications on iRobot platforms such as the Ava mobile robotics platform. This alliance resulted in the introduction in 2012 of the RP-VITA, the first autonomous navigation remote presence robot to receive U.S. Food and Drug Administration clearance for use in hospitals. The RP-VITA combines the latest in autonomous navigation and mobility technologies developed by iRobot with the state-of-the-art telemedicine and electronic health record integration developed by InTouch Health. Shipments of the RP-VITA began in early 2013.

In 2013, we signed a joint marketing agreement and have worked in close alliance with Cisco to bring our enterprise-grade Ava 500 Video Collaboration robot to market. The Ava 500, which blends together our autonomous navigation capabilities with Cisco’s TelePresence to enable people working off-site to participate in meetings, presentations and events where movement and location spontaneity are important, began shipping in 2014 on a limited basis.

Our strategy of working closely with third parties extends to the design of our products. By offering extensible platforms designed to carry payloads, we have designed and manufactured our products to leverage the work of those individuals and organizations that offer specialized technological expertise. The PackBot, Kobra and FirstLook robots are designed with open interfaces that allow third-party developers to add payloads to our robots, improving their functionality.

Sales and Distribution Channels

We sell our products through distinct sales channels to the consumer, defense and security, telemedicine, and video collaboration markets. For the fiscal years ended December 27, 2014, December 28, 2013, and December 29, 2012, sales to non-U.S. customers accounted for 60.9%, 59.5% and 57.3% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, U.S. federal government orders, contracts and subcontracts accounted for 4.3%, 6.2% and 15.1% of total revenue, respectively. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, we generated an aggregate of 29.8%, 33.2% and 30.6% of our revenue, respectively from our home robots distributor in Japan (Sales on Demand Corporation) and a network of affiliated European distributors of our home robots.

Home Robots

In the United States and Canada, we sell our consumer products through a network of national retailers. In 2014, this network consisted of more than 30 retailers which often sell either one or some combination of our products. Certain smaller domestic retail operations are supported by distributors to whom we sell our products directly. In support of sales in the United States and Canada, we maintain an in-house sales and product management team. Outside of the United States and Canada, our products have been sold in more than 50 countries, primarily through a network of in-country distributors who resell to retail stores in their respective countries. These distributors are supported by our international sales and product marketing team.

Our retail and distributor networks are our primary distribution channels for our consumer products. We also offer products direct-to-consumer through our domestic and international on-line stores, representing 6.1%, 5.9% and 6.3% of total home robots business unit revenue for fiscal 2014, 2013 and 2012, respectively. We have established valuable databases and customer lists that allow us to target directly those consumers most likely to purchase a new robot or upgrade. We believe we maintain a close connection with our customers in each of our markets, which provides an enhanced position from which to improve our distribution and product offerings.

Defense and Security

We sell our defense and security products directly to end users and indirectly through prime contractors and distributors. While the majority of defense and security products have been sold to date to various operations within the U.S. federal government, we also sell to state and local agencies as well as to international government organizations, research labs, nuclear and industrial companies and universities. Our military products are sold overseas in compliance with the International Traffic in Arms Regulations, or ITAR. We have sold our products to the governments of various countries in the past several years, including the United Kingdom, France, Germany, Sweden, Norway, Italy, Brazil, Pakistan, Israel, Australia, Republic of Korea, Singapore, Bosnia, Lithuania, Qatar, Taiwan, South Africa and Canada.

Remote Presence

The RP-VITA telemedicine robot, which was jointly developed with InTouch Health and incorporates our Ava mobile robotics platform, is sold to healthcare customers by InTouch Health. Our Ava 500 Video Collaboration robot, which incorporates our Ava mobile robotics platform and Cisco’s TelePresence, is available from certified Cisco partners on a limited basis.

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Customer Service and Support

We also provide ongoing customer service and support. Consumer customer service representatives, the majority of whom are employees of outsourced service organizations or our distribution partners, are extensively trained on the technical intricacies of our consumer products. Defense and security customer representatives are usually former military personnel who are experienced in logistical and technical support requirements for military operations. Customer service for the RP-VITA product is provided by InTouch Health. Customer service for the Ava 500 is provided by iRobot.

Marketing and Brand

We market our home robots to end-user customers through our sales and marketing teams as well as through our extensive network of retailers and in-country distributors. We market our defense and security products directly through our team of government sales specialists to end users and indirectly through prime contractors. The RP-VITA product is marketed to healthcare customers by InTouch Health while our Ava 500 Video Collaboration product is marketed to enterprise customers by a combination of our sales and marketing teams in conjunction with select Cisco partners. Our website is also playing an increasing role in supporting brand awareness, addressing customer questions and serving as a showcase for our products.

Our marketing strategy is to increase our brand awareness and associate the iRobot brand with innovation, reliability, safety and value. Our sales and marketing expenses represented 15.5%, 14.7% and 15.2% of our total revenue in 2014, 2013 and 2012, respectively. We expect to continue to invest in national advertising, consumer and industry trade shows, direct marketing and public relations to further build brand awareness.

We believe that we have built a trusted, recognized brand by providing high-quality robots. We believe that customer word-of-mouth has been a significant driver of our brand's success to date, which can work very well for products that inspire a high level of user loyalty because users are likely to share their positive experiences. Our grass-roots marketing efforts focus on feeding this word-of-mouth momentum and we use public relations as well as advertising to promote our products.

Our innovative robots and public relations campaigns have generated extensive press coverage, and iRobot and our consumer robots have won several awards. Through these efforts, we have been able to build our brand, and we expect that our reputation for innovative products and customer support will continue to play a significant role in our growth and success.

Manufacturing

Our core competencies are the design, development and marketing of robots. Our manufacturing strategy is to outsource non-core competencies, such as the production of our robots, to third-party entities skilled in manufacturing. By relying on the outsourced manufacture of our consumer, military and remote presence robots, we can focus our engineering expertise on the design of robots.

Manufacturing a new product requires a close relationship between our product designers and the manufacturing organizations. Using multiple engineering techniques, our products are introduced to the selected production facility at an early-development stage and the feedback provided by manufacturing is incorporated into the design before tooling is finalized and mass production begins. As a result, we believe that we can significantly reduce the time required to move a product from its design phase to mass production deliveries, with improved quality and yields.

We outsource the manufacturing of our consumer products to four contract manufacturers, each of which manufactures at a single plant in China. We outsource the manufacturing of our defense and security robots to three contract manufacturers, all of which are located in the United States. We outsource our Ava mobile robotics platform to one contract manufacturer located in the United States.

Research and Development

We believe that our future success depends upon our ability to continue to develop new products and product accessories, and enhancements to and applications for our existing products. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, our research and development expenses were $69.4 million, $63.6 million and $57.1 million, or 12.5%, 13.1% and 13.1% of revenue, respectively. We intend to continue our investment in research and development to respond to and anticipate customer needs, and to enable us to introduce new products over the next few years that will continue to address our existing and adjacent market sectors.

Our research and development is conducted by teams dedicated to particular projects. Our research and development efforts are primarily located at our headquarters in Bedford, Massachusetts and our office in Pasadena, California.

Competition

The market for robots is highly competitive, rapidly evolving and subject to changing technologies, shifting customer needs and expectations and the likely increased introduction of new products. We believe that a number of established

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companies have developed or are developing robots that will compete directly with our product offerings, and many of our competitors have significantly more financial and other resources than we possess.

Our competitors include developers of robot floor cleaning products, developers of small unmanned ground vehicles, and developers of mobile robotic platforms and telepresence systems.

While we believe many of our customers purchase our Roomba floor vacuuming robots, Braava floor cleaning and Scooba floor washing robots as a supplement to, rather than a replacement for, their traditional vacuum cleaners and wet floor cleaning methods, we do compete in some cases with providers of traditional cleaning products.

We believe that the principal competitive factors in the market for robots include product features, performance for the intended mission, cost of purchase, total cost of system operation, including maintenance and support, ease of use, integration with existing equipment, quality, reliability, customer support, brand and reputation.

Our ability to remain competitive will depend to a great extent upon our ongoing performance in the areas of product development and customer support. We cannot provide assurance that our products will continue to compete favorably or that we will be successful in the face of increasing competition from new products and enhancements introduced by existing competitors or new companies entering the markets in which we provide products.

Intellectual Property

We believe that our continued success depends in large part on our proprietary technology, the intellectual skills of our employees and the ability of our employees to continue to innovate. We rely on a combination of patent, copyright, trademark and trade secret laws, as well as confidentiality agreements, to establish and protect our proprietary rights.

As of December 27, 2014, we held 297 U.S. patents, more than 300 foreign patents, additional design registrations, and more than 400 patent applications pending worldwide. Our U.S. patents will begin to expire in 2019. We will continue to file and prosecute patent (or design registration, as applicable) applications when and where appropriate to attempt to protect our rights in our proprietary technologies. We also encourage our employees to continue to invent and develop new technologies so as to maintain our competitiveness in the marketplace. It is possible that our current patents, or patents which we may later acquire, may be successfully challenged or invalidated in whole or in part. It is also possible that we may not obtain issued patents for our pending patent applications or other inventions we seek to protect. In that regard, we sometimes permit certain intellectual property to lapse or go abandoned under appropriate circumstances and due to uncertainties inherent in prosecuting patent applications, sometimes patent applications are rejected and we subsequently abandon them. It is also possible that we may not develop proprietary products or technologies in the future that are patentable, or that any patent issued to us may not provide us with any competitive advantages, or that the patents of others will harm or altogether preclude our ability to do business.

Our registered U.S. trademarks include iRobot, Roomba, Ava,  Scooba, Mint, ViPR, NorthStar, Create, PackBot, FirstLook, iAdapt, Aware, Home Base, Looj, Braava, Kobra, AeroForce, uPoint, AeroVac, Mirra, and Virtual Wall.  Our marks iRobot, Roomba, Virtual Wall, Scooba, and certain other trademarks, have also been registered in selected foreign countries.

Our means of protecting our proprietary rights may not be adequate and our competitors may independently develop technology that is similar to ours. Legal protections afford only limited protection for our technology. The laws of many countries do not protect our proprietary rights to as great an extent as do the laws of the United States. Despite our efforts to protect our proprietary rights, unauthorized parties have in the past attempted, and may in the future attempt, to copy aspects of our products or to obtain and use information that we regard as proprietary. Third parties may also design around our proprietary rights, which may render our protected products less valuable, if the design around is favorably received in the marketplace. In addition, if any of our products or the technology underlying our products is covered by third-party patents or other intellectual property rights, we could be subject to various legal actions. We cannot assure you that our products do not infringe patents held by others or that they will not in the future. We have received in the past communications from third parties relating to technologies used in our various robot products that have alleged infringement of patents or violation of other intellectual property rights. In response to these communications, we have contacted these third parties to convey our good faith belief that we do not infringe the patents in question or otherwise violate those parties' rights. Although there have been no additional actions or communications with respect to these allegations, we cannot assure you that we will not receive further correspondence from these parties, or not be subject to additional allegations of infringement from others. Litigation may be necessary to enforce our intellectual property rights, to protect our trade secrets, to determine the validity and scope of the proprietary rights of others, or to defend against claims of infringement or invalidity, misappropriation, or other claims. Any such litigation could result in substantial costs and diversion of our resources. Moreover, any settlement of or adverse judgment resulting from such litigation could require us to obtain a license to continue to use the technology that is the subject of the claim, or otherwise restrict or prohibit our use of the technology. Any required licenses may not be available to us on acceptable terms, if at all. If we attempt to design around the technology at issue or to find another provider of suitable alternative technology to permit us to continue offering applicable software or product solutions, our continued supply of software or

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product solutions could be disrupted or our introduction of new or enhanced software or products could be significantly delayed.

Regulations

We are subject to various government regulations, including various U.S. federal government regulations as a contractor and subcontractor to the U.S. federal government. Among the most significant U.S. federal government regulations affecting our business are:

• the Federal Acquisition Regulations and supplemental agency regulations, which comprehensively regulate the formation and administration of, and performance under government contracts;

• the Truth in Negotiations Act, which requires certification and disclosure of all cost and pricing data in connection with contract negotiations;

• the Cost Accounting Standards, which impose accounting requirements that govern our right to reimbursement under cost-based government contracts;

• the Foreign Corrupt Practices Act, which prohibits U.S. companies from providing anything of value to a foreign official to help obtain, retain or direct business, or obtain any unfair advantages;

• the False Claims Act and the False Statements Act, which, respectively, impose penalties for payments made on the basis of false facts provided to the government, and impose penalties on the basis of false statements, even if they do not result in a payment; and

• laws, regulations and executive orders restricting the use and dissemination of information classified for national security purposes and the exportation of certain products and technical data.

We also need special security clearances to continue working on and advancing certain of our projects with the U.S. federal government. Classified programs generally will require that we comply with various Executive Orders, federal laws and regulations and customer security requirements that may include restrictions on how we develop, store, protect and share information, and may require our employees to obtain government clearances.

The nature of the work we do for the federal government may also limit the parties who may invest in or acquire us. Export laws may keep us from providing potential foreign acquirers with a review of the technical data they would be acquiring. In addition, there are special requirements for foreign parties who wish to buy or acquire control or influence over companies that control technology or produce goods in the security interests of the United States. There may need to be a review under the Exon-Florio provisions of the Defense Production Act. Finally, the government may require a prospective foreign owner to establish intermediaries to actually run that part of the company that does classified work, and establishing a subsidiary and its separate operation may make such an acquisition less appealing to such potential acquirers.

In addition, the export from the United States of many of our products may require the issuance of a license by the U.S. Department of Commerce under the Export Administration Act, as amended, and its implementing Regulations as kept in force by the International Emergency Economic Powers Act of 1977, as amended. Some of our products may require the issuance of a license by the U.S. Department of State under the Arms Export Control Act and its implementing Regulations, which licenses are generally harder to obtain and take longer to obtain than do Export Administration Act licenses.

Our business may require the compliance with state or local laws designed to limit the uses of personal user information gathered online or require online services to establish privacy policies.

Defense and Security Product Backlog

Our defense and security product backlog consists of written orders or contracts to purchase our products received from our defense and security customers. Total backlog of product sales to defense and security customers, which includes federal, state, local and foreign governments, and non-government customers, as of December 27, 2014, December 28, 2013 and December 29, 2012 amounted to approximately $18.2 million, $8.8 million and $11.4 million respectively. There can be no assurance that any of our backlog will result in revenue.

Employees

As of December 27, 2014, we had 572 full-time employees located in the United States and abroad. We believe that we have a good relationship with our employees.

Available Information

We were incorporated in California in August 1990 under the name IS Robotics, Inc. and reincorporated as IS Robotics Corporation in Massachusetts in June 1994. We reincorporated in Delaware as iRobot Corporation in December 2000. We conduct operations and maintain a number of subsidiaries in the United States and abroad, including operations in Hong Kong, the United Kingdom and China. We also maintain iRobot Securities Corporation, a Massachusetts securities corporation, to invest our cash balances on a short-term basis. Our website address is www.irobot.com. Our Annual Report on Form 10-K,

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Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 are available free of charge through the investor relations page of our internet website as soon as reasonably practicable after we electronically file such material with, or furnish it to, the Securities and Exchange Commission. Alternatively, these reports may be accessed at the SEC’s website at www.sec.gov.

ITEM 1A.     RISK FACTORS

We operate in a rapidly changing environment that involves a number of risks, some of which are beyond our control. This discussion highlights some of the risks which may affect future operating results. These are the risks and uncertainties we believe are most important for you to consider. Additional risks and uncertainties not presently known to us, which we currently deem immaterial or which are similar to those faced by other companies in our industry or business in general, may also impair our business operations. If any of the following risks or uncertainties actually occurs, our business, financial condition and operating results would likely suffer.

Risks Related to Our Business

We operate in an emerging market, which makes it difficult to evaluate our business and future prospects.

Robots represent a new and emerging market. Accordingly, our business and future prospects are difficult to evaluate. We cannot accurately predict the extent to which demand for consumer robots will increase, if at all. Moreover, there are only a limited number of programs under which the U.S. federal government is currently funding the development or purchase of defense robots. Our remote presence robot business remains in an investment stage, where market demand is uncertain. You should consider the challenges, risks and uncertainties frequently encountered by companies using new and unproven business models in rapidly evolving markets. These challenges include our ability to:

• generate sufficient revenue and gross margin to maintain profitability;

• acquire and maintain market share in our consumer and defense markets;

• attract and retain customers of our consumer robots;

• attract and retain additional engineers and other highly-qualified personnel;

• expand our product offerings beyond our existing robots; and

• adapt to new or changing policies and spending priorities of governments and government agencies.

If we fail to successfully address these and other challenges, risks and uncertainties, our business, results of operations and financial condition would be materially harmed.

Our financial results often vary significantly from quarter-to-quarter due to a number of factors, which may lead to volatility in our stock price.

Our quarterly revenue and other operating results have varied in the past and are likely to continue to vary significantly from quarter-to-quarter in the future. These fluctuations may be due to numerous factors including:

• the size, timing and mix of orders from retail stores and international distributors for our home care robots;

• the size and timing of orders from military and other government agencies;

• the mix of products that we sell in the period;

• disruption of supply of our products from our manufacturers;

• disruptions to our supply chain due to inclement weather, labor disruptions or other factors beyond our control;

• seasonality in the sales of our military and consumer products;

• unanticipated costs incurred in the introduction of new products;

• costs and availability of labor and raw materials;

• costs of freight;

• changes in our rate of returns for our consumer products;

• our ability to introduce new products and enhancements to our existing products on a timely basis;

• warranty costs associated with our consumer products;

• the amount of government funding and the political, budgetary and purchasing constraints of our government agency customers; and

• cancellations, delays or contract amendments by government agency customers.

We cannot be certain that our revenues will grow at rates that will allow us to maintain profitability during every fiscal quarter, or even every fiscal year. We base our current and future expense levels on our internal operating plans and sales forecasts, including forecasts of holiday sales for our consumer products. A significant portion of our operating expenses, such

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as research and development expenses, certain marketing and promotional expenses and employee wages and salaries, do not vary directly with sales and are difficult to adjust in the short term. As a result, if sales for a quarter are below our expectations, we might not be able to reduce operating expenses for that quarter and, therefore, we would not be able to reduce our operating expenses for the fiscal year. Accordingly, a sales shortfall during a fiscal quarter, and in particular the fourth quarter of a fiscal year, could have a disproportionate effect on our operating results for that quarter or that year. Because of quarterly fluctuations, we believe that quarter-to-quarter comparisons of our operating results are not necessarily meaningful. Moreover, our operating results may not meet expectations of equity research analysts or investors. If this occurs, the trading price of our common stock could fall substantially either suddenly or over time.

Global economic conditions and any associated impact on consumer spending could have a material adverse effect on our business, results of operations and financial condition.

Continued economic uncertainty and reductions in consumer spending, particularly in certain international markets such as the European Union and Japan, may result in reductions in sales of our consumer robots. Additionally, disruptions in credit markets may materially limit consumer credit availability and restrict credit availability of our retail customers, which would also impact purchases of our consumer robots. Any reduction in sales of our consumer robots, resulting from reductions in consumer spending or continued disruption in the availability of credit to retailers or consumers, could materially and adversely affect our business, results of operations and financial condition.

Because we are a global business that in 2014 generated approximately 61% of our total revenue from sales to customers outside of the United States, we are subject to a number of additional risks including foreign currency fluctuations. These fluctuations may make our products more expensive to our distributors, which in turn may impact sales directly or the ability or willingness of our distribution partners to invest in growing product demand.

The majority of our business currently depends on our consumer robots, and our sales growth and operating results would be negatively impacted if we are unable to enhance our current consumer robots or develop new consumer robots at competitive prices or in a timely manner, or if the consumer robot market does not achieve broad market acceptance.

For the years ended December 27, 2014 and December 28, 2013, we derived 91.1% and 87.8% of our total revenue from our consumer robots, respectively. For the foreseeable future, we expect that a significant portion of our revenue will be derived from sales of consumer robots in general and home floor care products in particular. Accordingly, our future success depends upon our ability to further penetrate the consumer home care market, to enhance our current consumer products and develop and introduce new consumer products offering enhanced performance and functionality at competitive prices. The development and application of new technologies involve time, substantial costs and risks. Our inability to achieve significant sales of our newly introduced robots, or to enhance, develop and introduce other products in a timely manner, or at all, would materially harm our sales growth and operating results.

Even if consumer robots gain wide market acceptance, our robots may not adequately address market requirements and may not continue to gain market acceptance. If robots generally, or our robots specifically, do not gain wide market acceptance, we may not be able to achieve our anticipated level of growth, and our revenue and results of operations would suffer.

We depend on the U.S. federal government for a portion of our revenue, and any unexpected reduction in the amount of business that we do with the U.S. federal government would negatively impact our operating results and financial condition.

For the years ended December 27, 2014 and December 28, 2013, we derived 4.3% and 6.2% of our total revenue, respectively, directly or indirectly, from the U.S. federal government and its agencies. Further reduction in the amount of revenue that we derive from a limited number of U.S. federal government agencies without an offsetting increase in new sales to other customers would have a material adverse effect on our operating results.

Specifically, the defense industry in which we operate is dependent upon the level of equipment expenditures by the armed forces of countries throughout the world, and especially those of the United States, which represents a significant portion of world-wide defense expenditures.  In prior years, the war on terror increased the level of equipment expenditures by the U.S. armed forces; however, this level of spending does not appear to be sustainable in light of government spending priorities by the U.S. and the continued winding down of U.S. armed forces operations in Iraq and Afghanistan.

Future sales of our military robots will depend largely on our ability to secure contracts with the U.S. military under its robot programs. We expect that there will continue to be only a limited number of programs under which U.S. federal government agencies will seek to fund the development of, or purchase, robots. Moreover, it is difficult to predict the timing of the award of government contracts and our revenue could fluctuate significantly based on the timing of any such awards.

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We depend on single source manufacturers, and our reputation and results of operations would be harmed if these manufacturers fail to meet our requirements.

We currently depend largely on several single source contract manufacturers, for the manufacture of our various families of home care and defense products. All contract manufacturers for our home robots are located in China. These manufacturers supply substantially all of the raw materials and provide all facilities and labor required to manufacture our products. If these companies were to terminate their arrangements with us or fail to provide the required capacity and quality on a timely basis, we would be unable to manufacture our products until replacement contract manufacturing services could be obtained or volume transferred to an alternative manufacturing partner, each of which is a costly and time-consuming process. We cannot assure you that we would be able to establish alternative manufacturing arrangements on acceptable terms or in a timely manner.

Our reliance on these contract manufacturers involves certain risks, including the following:

• lack of direct control over production capacity and delivery schedules;

• lack of direct control over quality assurance, manufacturing yields and production costs;

• lack of enforceable contractual provisions over the production and costs of consumer products;

• risk of loss of inventory while in transit;

• risks associated with international commerce, including unexpected changes in legal and regulatory requirements, changes in tariffs and trade policies, risks associated with the protection of intellectual property and political and economic instability; and

• our attempts to add additional manufacturing resources may be significantly delayed and thereby create disruptions in production of our products.

Any interruption in the manufacture of our products would be likely to result in delays in shipment, lost sales and revenue and damage to our reputation in the market, all of which would harm our business and results of operations. In addition, while our contract obligations with our contract manufacturers in China are typically denominated in U.S. dollars, changes in currency exchange rates could impact our suppliers and increase our prices.

Any efforts to expand our product offerings beyond our current markets may not succeed, which could negatively impact our operating results.

We have focused on selling our robots in the home floor care and defense markets. We are actively expanding into new markets, in particular remote presence robots for telemedicine and business collaboration, and we plan to expand into other markets. Efforts to expand our product offerings beyond the markets that we currently serve, however, may divert management resources from existing operations and require us to commit significant financial resources to an unproven business, either of which could significantly impair our operating results. Moreover, efforts to expand beyond our existing markets may never result in new products that achieve market acceptance, create additional revenue or become profitable.

If we fail to maintain or increase consumer robot sales through our distribution channels, our operating results would be negatively impacted.

We do not have long-term contracts regarding purchase volumes with any of our retail partners. As a result, purchases generally occur on an order-by-order basis, and the relationships, as well as particular orders, can generally be terminated or otherwise materially changed at any time by our retail partners. A decision by a major retail partner, whether motivated by competitive considerations, financial difficulties, economic conditions or otherwise, to decrease its purchases from us, to reduce the shelf space for our products or to change its manner of doing business with us could significantly damage our consumer product sales and negatively impact our business, financial condition and results of operations. In addition, during recent years, various retailers, including some of our partners, have experienced significant changes and difficulties, including consolidation of ownership, increased centralization of purchasing decisions, restructurings, bankruptcies and liquidations. These and other financial problems of some of our retailers increase the risk of extending credit to these retailers. A significant adverse change in a retail partner relationship with us or in a retail partner’s financial position could cause us to limit or discontinue business with that partner, require us to assume more credit risk relating to that partner’s receivables or limit our ability to collect amounts related to previous purchases by that partner, all of which could harm our business and financial condition. Disruption of the iRobot on-line store could also decrease our home care robot sales.

Our contracts with the U.S. federal government contain certain provisions that may be unfavorable to us and subject us to government audits, which could materially harm our business and results of operations.

Our contracts and subcontracts with the U.S. federal government subject us to certain risks and give the U.S. federal government rights and remedies not typically found in commercial contracts, including rights that allow the U.S. federal government to:

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• terminate contracts for convenience, in whole or in part, at any time and for any reason;

• reduce or modify contracts or subcontracts if its requirements or budgetary constraints change;

• cancel multi-year contracts and related orders if funds for contract performance for any subsequent year become unavailable;

• exercise production priorities, which allow it to require that we accept government purchase orders or produce products under its contracts before we produce products under other contracts, which may displace or delay production of more profitable orders;

• claim certain rights in products provided by us; and

• control or prohibit the export of certain of our products.

Several of our prime contracts with the U.S. federal government do not contain a limitation of liability provision, creating a risk of responsibility for direct and consequential damages. Several subcontracts with prime contractors hold the prime contractor harmless against liability that stems from our work and do not contain a limitation of liability. These provisions could cause substantial liability for us, especially given the use to which our products may be put.

In addition, we are subject to audits by the U.S. federal government as part of routine audits of government contracts. As part of an audit, these agencies may review our performance on contracts, cost structures and compliance with applicable laws, regulations and standards. If any of our costs are found to be allocated improperly to a specific contract, the costs may not be reimbursed and any costs already reimbursed for such contract may have to be refunded. Accordingly, an audit could result in a material adjustment to our revenue and results of operations. Moreover, if an audit uncovers improper or illegal activities, we may be subject to civil and criminal penalties and administrative sanctions, including termination of contracts, forfeiture of profits, suspension of payments, fines and suspension or debarment from doing business with the government.

If any of the foregoing were to occur, or if the U.S. federal government otherwise ceased doing business with us or decreased the amount of business with us, our business and operating results could be materially harmed and the value of your investment in our common stock could be impaired.

Some of our contracts with the U.S. federal government allow it to use inventions developed under the contracts and to disclose technical data to third parties, which could harm our ability to compete.

Some of our contracts allow the U.S. federal government rights to use, or have others use, patented inventions developed under those contracts on behalf of the government. Some of the contracts allow the federal government to disclose technical data without constraining the recipient in how that data is used. The ability of third parties to use patents and technical data for government purposes creates the possibility that the government could attempt to establish additional sources for the products we provide that stem from these contracts. It may also allow the government the ability to negotiate with us to reduce our prices for products we provide to it. The potential that the government may release some of the technical data without constraint creates the possibility that third parties may be able to use this data to compete with us in the commercial sector.

We face intense competition from other providers of robots, including diversified technology providers, as well as competition from providers offering alternative products, which could negatively impact our results of operations and cause our market share to decline.

We believe that a number of companies have developed or are developing robots that will compete directly with our product offerings. Additionally, large and small companies, government-sponsored laboratories and universities are aggressively pursuing contracts for robot-focused research and development. Many current and potential competitors have substantially greater financial, marketing, research and manufacturing resources than we possess, and there can be no assurance that our current and future competitors will not be more successful than us. Moreover, while we believe many of our customers purchase our floor vacuuming robots as a supplement to, rather than a replacement for, their traditional vacuum cleaners; we also compete in some cases with providers of traditional vacuum cleaners. Our competitors include developers of robot floor cleaning products, developers of small unmanned ground vehicles, and established government contractors working on unmanned systems.

The market for robots is highly competitive, rapidly evolving and subject to changing technologies, shifting customer needs and expectations and the likely increased introduction of new products. Our ability to remain competitive will depend to a great extent upon our ongoing performance in the areas of product development and customer support.

In the event that the robot market expands further, we expect that competition will intensify as additional competitors enter the market and current competitors expand their product lines. Companies competing with us may introduce products that are competitively priced, have increased performance or functionality, or incorporate technological advances that we have not yet developed or implemented. Increased competitive pressure could result in a loss of sales or market share or cause us to lower prices for our products, any of which would harm our business and operating results.

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We cannot assure you that our products will continue to compete favorably or that we will be successful in the face of increasing competition from new products and enhancements introduced by existing competitors or new companies entering the markets in which we provide products. Our failure to compete successfully could cause our revenue and market share to decline, which would negatively impact our results of operations and financial condition.

If critical components of our products that we currently purchase from a small number of suppliers become unavailable, we may incur delays in shipment, which could damage our business.

We and our outsourced manufacturers obtain hardware components, various subsystems, raw materials and batteries from a limited group of suppliers, some of which are sole suppliers. We do not have any long-term agreements with these suppliers obligating them to continue to sell components or products to us. If we or our outsourced manufacturers are unable to obtain components from third-party suppliers in the quantities and of the quality that we require, on a timely basis and at acceptable prices, we may not be able to deliver our products on a timely or cost-effective basis to our customers, which could cause customers to terminate their contracts with us, reduce our gross margin and seriously harm our business, results of operations and financial condition. Moreover, if any of our suppliers become financially unstable, we may have to find new suppliers. It may take several months to locate alternative suppliers, if required, or to re-tool our products to accommodate components from different suppliers. We may experience significant delays in manufacturing and shipping our products to customers and incur additional development, manufacturing and other costs to establish alternative sources of supply if we lose any of these sources. We cannot predict if we will be able to obtain replacement components within the time frames that we require at an affordable cost, or at all.

Our products are complex and could have unknown defects or errors, which may give rise to claims against us, diminish our brand or divert our resources from other purposes.

Our robots rely on the interplay among behavior-based artificially intelligent systems, real-world dynamic sensors, user-friendly interfaces and tightly-integrated, electromechanical designs to accomplish their missions. Despite testing, our new or existing products have contained defects and errors and may in the future contain defects, errors or performance problems when first introduced, when new versions or enhancements are released, or even after these products have been used by our customers for a period of time. These problems could result in expensive and time-consuming design modifications or warranty charges, delays in the introduction of new products or enhancements, significant increases in our service and maintenance costs, exposure to liability for damages, mandatory or voluntary recall or product upgrades, damaged customer relationships and harm to our reputation, any of which could materially harm our results of operations and ability to achieve market acceptance. Our quality control procedures relating to the raw materials and components that it receives from third-party suppliers as well as our quality control procedures relating to its products after those products are designed, manufactured and packaged may not be sufficient. In addition, increased development and warranty costs, including the costs of any mandatory or voluntary recall, could be substantial and could reduce our operating margins. Moreover, because military robots are used in dangerous situations, the failure or malfunction of any of these robots, including our own, could significantly damage our reputation and support for robot solutions in general. The existence of any defects, errors, or failures in our products could also lead to product liability claims or lawsuits against us. A successful product liability claim could result in substantial cost, diminish our brand and divert management’s attention and resources, which could have a negative impact on our business, financial condition and results of operations.

If we are unable to attract and retain additional skilled personnel, we may be unable to grow our business.

To execute our growth plan, we must attract and retain additional, highly-qualified personnel. Competition for hiring these employees is intense, especially with regard to engineers with high levels of experience in designing, developing and integrating robots. Many of the companies with which we compete for hiring experienced employees have greater resources than we have. If we fail to attract new technical personnel or fail to retain and motivate our current employees, our business and future growth prospects could be severely harmed.

We may be sued by third parties for alleged infringement of their proprietary rights, which could be costly, time-consuming and limit our ability to use certain technologies in the future.

If the size of our markets increases, we would be more likely to be subject to claims that our technologies infringe upon the intellectual property or other proprietary rights of third parties. In addition, the vendors from which we license technology used in our products could become subject to similar infringement claims. Our vendors, or we, may not be able to withstand third-party infringement claims. Any claims, with or without merit, could be time-consuming and expensive, and could divert our management’s attention away from the execution of our business plan. Moreover, any settlement or adverse judgment resulting from the claim could require us to pay substantial amounts or obtain a license to continue to use the technology that is the subject of the claim, or otherwise restrict or prohibit our use of the technology. There can be no assurance that we would be able to obtain a license from the third party asserting the claim on commercially reasonable terms, if at all, that we would be able to develop alternative technology on a timely basis, if at all, or that we would be able to obtain a license to use a suitable

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alternative technology to permit us to continue offering, and our customers to continue using, our affected product. In addition, we may be required to indemnify our retail and distribution partners for third-party intellectual property infringement claims, which would increase the cost to us of an adverse ruling in such a claim. An adverse determination could also prevent us from offering our products to others. Infringement claims asserted against us or our vendors may have a material adverse effect on our business, results of operations or financial condition.

If we fail to protect, or incur significant costs in defending, our intellectual property and other proprietary rights, our business and results of operations could be materially harmed.

Our success depends on our ability to protect our intellectual property and other proprietary rights. We rely primarily on patents, trademarks, copyrights, trade secrets and unfair competition laws, as well as license agreements and other contractual provisions, to protect our intellectual property and other proprietary rights. Significant technology used in our products, however, is not the subject of any patent protection, and we may be unable to obtain patent protection on such technology in the future. Moreover, existing U.S. legal standards relating to the validity, enforceability and scope of protection of intellectual property rights offer only limited protection, may not provide us with any competitive advantages, and may be challenged by third parties. In addition, the laws of countries other than the United States in which we market our products may afford little or no effective protection of our intellectual property. Accordingly, despite our efforts, we may be unable to prevent third parties from infringing upon or misappropriating our intellectual property or otherwise gaining access to our technology. Unauthorized third parties may try to copy or reverse engineer our products or portions of our products or otherwise obtain and use our intellectual property. Some of our contracts with the U.S. federal government allow the federal government to disclose technical data regarding the products developed on behalf of the government under the contract without constraining the recipient on how it is used. This ability of the government creates the potential that third parties may be able to use this data to compete with us in the commercial sector. If we fail to protect our intellectual property and other proprietary rights, our business, results of operations or financial condition could be materially harmed.

In addition, defending our intellectual property rights may entail significant expense. We believe that certain products in the marketplace may infringe our existing intellectual property rights. We have, from time to time, resorted to legal proceedings to protect our intellectual property and may continue to do so in the future. We may be required to expend significant resources to monitor and protect our intellectual property rights. Any of our intellectual property rights may be challenged by others or invalidated through administrative processes or litigation. If we resort to legal proceedings to enforce our intellectual property rights or to determine the validity and scope of the intellectual property or other proprietary rights of others, the proceedings could result in significant expense to us and divert the attention and efforts of our management and technical employees, even if we were to prevail.

If we fail to enhance our brand, our ability to expand our customer base will be impaired and our operating results may suffer.

We believe that developing and maintaining awareness of the iRobot brand is critical to achieving widespread acceptance of our existing and future products and is an important element in attracting new customers. Furthermore, we expect the importance of global brand recognition to increase as competition develops. If customers do not perceive our products to be of high quality, our brand and reputation could be harmed, which could adversely impact our financial results. In addition, brand promotion efforts may not yield significant revenue or increased revenue sufficient to offset the additional expenses incurred in building our brand.

We depend on the experience and expertise of our senior management team and key technical employees, and the loss of any key employee may impair our ability to operate effectively.

Our success depends upon the continued services of our senior management team and key technical employees, such as our project management personnel and senior engineers. Moreover, we often must comply with provisions in government contracts that require employment of persons with specified levels of education and work experience. Each of our executive officers, key technical personnel and other employees could terminate his or her relationship with us at any time. The loss of any member of our senior management team might significantly delay or prevent the achievement of our business objectives and could materially harm our business and customer relationships. In addition, because of the highly technical nature of our robots, the loss of any significant number of our existing engineering and project management personnel could have a material adverse effect on our business and operating results.

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We are subject to extensive U.S. federal government regulation, and our failure to comply with applicable regulations could subject us to penalties that may restrict our ability to conduct our business.

As a contractor and subcontractor to the U.S. federal government, we are subject to and must comply with various government regulations that impact our operating costs, profit margins and the internal organization and operation of our business. Among the most significant regulations affecting our business are:

• the Federal Acquisition Regulations and supplemental agency regulations, which comprehensively regulate the formation and administration of, and performance under government contracts;

• the Truth in Negotiations Act, which requires certification and disclosure of all cost and pricing data in connection with contract negotiations;

• the Cost Accounting Standards, which impose accounting requirements that govern our right to reimbursement under cost-based government contracts;

• the Foreign Corrupt Practices Act, which prohibits U.S. companies from providing anything of value to a foreign official to help obtain, retain or direct business, or obtain any unfair advantage;

• the False Claims Act and the False Statements Act, which, respectively, impose penalties for payments made on the basis of false facts provided to the government, and impose penalties on the basis of false statements, even if they do not result in a payment;

• laws, regulations and executive orders restricting the use and dissemination of information classified for national security purposes and the exportation of certain products and technical data;

• Certain contracts from the U.S. federal government may require us to maintain certain certifications including but not limited to AS9100 and CMMI;

• Contractor Purchasing Systems review (CPSR) requirements, which evaluate the efficiency and effectiveness with which we spend U.S. Government funds; and

• The sale of our products in countries outside the United States is regulated by the governments of those countries. While compliance with such regulation will generally be undertaken by our international distributors, we may assist with such compliance and in certain cases may be liable if a distributor fails to comply.

We must comply with U.S. laws regulating the export of our products. In addition, we are required to obtain a license from the U.S. federal government to export our PackBot, Kobra and SUGV lines of defense and security robots. We cannot be sure of our ability to obtain any licenses required to export our products or to receive authorization from the U.S. federal government for international sales or domestic sales to foreign persons. Moreover, the export regimes and the governing policies applicable to our business are subject to change. We cannot assure you of the extent that such export authorizations will be available to us, if at all, in the future. In some cases where we act as a subcontractor, we rely upon the compliance activities of our prime contractors, and we cannot assure you that they have taken or will take all measures necessary to comply with applicable export laws. If we or our prime contractor partners cannot obtain required government approvals under applicable regulations in a timely manner or at all, we would be delayed or prevented from selling our products in international jurisdictions, which could materially harm our business, operating results and ability to generate revenue.

Also, we need special clearances to continue working on and advancing certain of our projects with the U.S. federal government. Obtaining and maintaining security clearances for employees involves a lengthy process, and it is difficult to identify, recruit and retain employees who already hold security clearances. If our employees are unable to obtain security clearances in a timely manner, or at all, or if our employees who hold security clearances are unable to maintain the clearances or terminate employment with us, then a customer requiring classified work could terminate the contract or decide not to renew it upon its expiration. In addition, we expect that many of the contracts on which we will bid will require us to demonstrate our ability to obtain facility security clearances and employ personnel with specified types of security clearances. To the extent we are not able to obtain facility security clearances or engage employees with the required security clearances for a particular contract, we may not be able to bid on or win new contracts, or effectively rebid on expiring contracts. Classified programs generally will require that we comply with various Executive Orders, federal laws and regulations and customer security requirements that may include restrictions on how we develop, store, protect and share information, and may require our employees to obtain government clearances.

Our failure to comply with applicable regulations, rules and approvals could result in the imposition of penalties, the loss of our government contracts or our suspension or debarment from contracting with the federal government generally, any of which would harm our business, financial condition and results of operations.

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Acquisitions and potential future acquisitions could be difficult to integrate, divert the attention of key personnel, disrupt our business, dilute stockholder value and impair our financial results.

As part of our business strategy, we have in the past acquired, and we intend to continue to consider additional acquisitions of companies, technologies and products that we believe could accelerate our ability to compete in our core markets or allow us to enter new markets. Acquisitions and combinations are accompanied by a number of risks, including the difficulty of integrating the operations and personnel of the acquired companies, the potential disruption of our ongoing business, the potential distraction of management, expenses related to the acquisition and potential unknown liabilities associated with acquired businesses. Any inability to integrate completed acquisitions or combinations in an efficient and timely manner could have an adverse impact on our results of operations. In addition, we may not be able to recognize any expected synergies or benefits in connection with a future acquisition or combination. If we are not successful in completing acquisitions or combinations that we may pursue in the future, we may incur substantial expenses and devote significant management time and resources without a successful result. In addition, future acquisitions could require use of substantial portions of our available cash or result in dilutive issuances of securities.

In addition, charges to earnings as a result of acquisitions may adversely affect our operating results in the foreseeable future, which could have a material and adverse effect on the market value of our common stock.  In particular we have allocated the cost of acquiring businesses to the individual assets acquired and liabilities assumed, including various identifiable intangible assets such as acquired technology, acquired trade names and acquired customer relationships based on their respective fair values. Our estimates of fair value are based upon assumptions believed to be reasonable, but which are inherently uncertain. After we complete an acquisition, the following factors could result in material charges and adversely affect our operating results and may adversely affect our cash flows:

• costs incurred to combine the operations of businesses we acquire, such as transitional employee expenses and employee retention, redeployment or relocation expenses;

• impairment of goodwill or intangible assets;

• amortization of intangible assets acquired;

• a reduction in the useful lives of intangible assets acquired;

• identification of or changes to assumed contingent liabilities, both income tax and non-income tax related after our final determination of the amounts for these contingencies or the conclusion of the measurement period (generally up to one year from the acquisition date), whichever comes first;

• charges to our operating results to eliminate certain duplicative pre-merger activities, to restructure our operations or to reduce our cost structure;

• charges to our operating results resulting from expenses incurred to effect the acquisition; and

• charges to our operating results due to the expensing of certain stock awards assumed in an acquisition.

We may not be able to obtain capital when desired on favorable terms, if at all, or without dilution to our stockholders.

We anticipate that our current cash, cash equivalents, cash provided by operating activities and funds available through our working capital line of credit, will be sufficient to meet our current and anticipated needs for general corporate purposes. We operate in an emerging market, however, which makes our prospects difficult to evaluate. It is possible that we may not generate sufficient cash flow from operations or otherwise have the capital resources to meet our future capital needs. In such cases we may need additional financing to execute on our current or future business strategies. If we raise additional funds through the issuance of equity or convertible debt securities, the percentage ownership of our stockholders could be significantly diluted, and these newly-issued securities may have rights, preferences or privileges senior to those of existing stockholders. We cannot assure you that additional financing will be available on terms favorable to us, or at all. If adequate funds are not available or are not available on acceptable terms, if and when needed, our ability to fund our operations, take advantage of unanticipated opportunities, develop or enhance our products, or otherwise respond to competitive pressures would be significantly limited. In addition, our access to credit through our working capital line of credit may be limited by the restrictive financial covenants contained in that agreement, which require us to maintain profitability.

Environmental laws and regulations and unforeseen costs could negatively impact our future earnings.

The manufacture and sale of our products in certain states and countries may subject us to environmental and other regulations. We also face increasing complexity in our product design as we adjust to legal and regulatory requirements relating to our products. There is no assurance that such existing laws or future laws will not impair future earnings or results of operations.

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Business disruptions resulting from international uncertainties could negatively impact our profitability.

We derive, and expect to continue to derive, a significant portion of our revenue from international sales in various European and Far East markets, and Canada. For the fiscal years ended December 27, 2014 and December 28, 2013, sales to non-U.S. customers accounted for 60.9% and 59.5% of total revenue, respectively. Our international revenue and operations are subject to a number of material risks, including, but not limited to:

• difficulties in staffing, managing and supporting operations in multiple countries;

• difficulties in enforcing agreements and collecting receivables through foreign legal systems and other relevant legal issues;

• fewer legal protections for intellectual property;

• foreign and U.S. taxation issues, tariffs, and international trade barriers;

• difficulties in obtaining any necessary governmental authorizations for the export of our products to certain foreign jurisdictions;

• potential fluctuations in foreign economies;

• government currency control and restrictions on repatriation of earnings;

• fluctuations in the value of foreign currencies and interest rates;

• general economic and political conditions in the markets in which we operate;

• domestic and international economic or political changes, hostilities and other disruptions in regions where we currently operate or may operate in the future;

• changes in foreign currency exchange rates;

• different and changing legal and regulatory requirements in the jurisdictions in which we currently operate or may operate in the future; and

• outside of the United States, we primarily rely on a network of exclusive distributors, some of whom may be operating without written contracts.

Negative developments in any of these areas in one or more countries could result in a reduction in demand for our products, the cancellation or delay of orders already placed, threats to our intellectual property, difficulty in collecting receivables, and a higher cost of doing business, any of which could negatively impact our business, financial condition or results of operations. Moreover, our sales, including sales to customers outside the United States, are primarily denominated in U.S. dollars, and downward fluctuations in the value of foreign currencies relative to the U.S. dollar may make our products more expensive than other products, which could harm our business.

If we experience a disaster or other business continuity problem, we may not be able to recover successfully, which could cause material financial loss, loss of human capital, regulatory actions, reputational harm, or legal liability.

If we experience a local or regional disaster or other business continuity problem, such as an earthquake, terrorist attack, pandemic or other natural or man-made disaster, our continued success will depend, in part, on the availability of our personnel, our office facilities, and the proper functioning of our computer, telecommunication and other related systems and operations. As we grow our operations in new geographic regions, the potential for particular types of natural or man-made disasters, political, economic or infrastructure instabilities, or other country- or region-specific business continuity risks increases.

If we suffer any data breaches involving the designs, schematics or source code for our products, our brand, business and financial results could be adversely affected.

We attempt to securely store our designs, schematics and source code for our products as they are created. A breach, whether physical, electronic or otherwise, of the systems on which this sensitive data is stored could lead to damage or piracy of our products. In addition, we work with e-commerce providers who hold significant sensitive customer data. If we or our partners are subject to data security breaches, we may have a loss in sales or increased costs arising from the restoration or implementation of additional security measures, either of which could materially and adversely affect our brand, business and financial results.

The effects of new regulations relating to conflict minerals may adversely affect our business.

On August 22, 2012, under the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, the SEC adopted new requirements for companies that use certain minerals and metals, known as conflict minerals, in their products, whether or not these products are manufactured by third parties. These requirements will require companies to diligence, disclose and report whether or not such minerals originate from the Democratic Republic of Congo and adjoining countries. We will have to diligence whether such minerals are used in the manufacture of our products.  However, the implementation of these requirements could adversely affect the sourcing, availability and pricing of such minerals if they are found to be used in the

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manufacture of our products. In addition, we will incur additional costs to comply with the disclosure requirements, including costs related to determining the source of any of the relevant minerals and metals used in our products. Since our supply chain is complex, we may not be able to sufficiently verify the origins for these minerals and metals used in our products through the due diligence procedures that we implement, which may harm our reputation. In such event, we may also face difficulties in satisfying customers who require that all of the components of our products are certified as conflict mineral free. 

Our income tax provision and other tax liabilities may be insufficient if taxing authorities are successful in asserting tax positions that are contrary to our position. Additionally, there is no guarantee that we will realize our deferred tax assets.

From time to time, we are audited by various federal, state, local and foreign authorities regarding income tax matters. Significant judgment is required to determine our provision for income taxes and our liabilities for federal, state, local and foreign taxes. Although we believe our approach to determining the appropriate tax treatment is supportable and in accordance with relevant authoritative guidance it is possible that the final tax authority will take a tax position that is materially different than that which is reflected in our income tax provision. Such differences could have a material adverse effect on our income tax provision or benefit, in the reporting period in which such determination is made and, consequently, on our results of operations, financial position and/or cash flows for such period.

The realization of our deferred tax assets ultimately depends on the existence of sufficient income in either the carryback or carryforward periods under the tax law. Due to significant estimates utilized in establishing a valuation allowance and the potential for changes in facts and circumstances, it is possible that we will be required to record additional valuation allowance in future reporting periods. Our results of operations would be impacted negatively if we determine that additional deferred tax asset valuation allowance is required in a future reporting period.

Provisions in our certificate of incorporation and by-laws, our shareholder rights agreement or Delaware law might discourage, delay or prevent a change of control of our company or changes in our management and, therefore, depress the trading price of our common stock.

Provisions of our certificate of incorporation and by-laws and Delaware law may discourage, delay or prevent a merger, acquisition or other change in control that stockholders may consider favorable, including transactions in which you might otherwise receive a premium for your shares of our common stock. These provisions may also prevent or frustrate attempts by our stockholders to replace or remove our management. These provisions include:

• limitations on the removal of directors;

• a classified board of directors so that not all members of our board are elected at one time;

• advance notice requirements for stockholder proposals and nominations;

• the inability of stockholders to act by written consent or to call special meetings;

• the ability of our board of directors to make, alter or repeal our by-laws; and

• the ability of our board of directors to designate the terms of and issue new series of preferred stock without stockholder approval.

The affirmative vote of the holders of at least 75% of our shares of capital stock entitled to vote is necessary to amend or repeal the above provisions of our certificate of incorporation. In addition, absent approval of our board of directors, our by-laws may only be amended or repealed by the affirmative vote of the holders of at least 75% of our shares of capital stock entitled to vote.

In addition, Section 203 of the Delaware General Corporation Law prohibits a publicly-held Delaware corporation from engaging in a business combination with an interested stockholder, generally a person which together with its affiliates owns, or within the last three years has owned, 15% of our voting stock, for a period of three years after the date of the transaction in which the person became an interested stockholder, unless the business combination is approved in a prescribed manner.

The existence of the foregoing provisions and anti-takeover measures could limit the price that investors might be willing to pay in the future for shares of our common stock. They could also deter potential acquirers of our company, thereby reducing the likelihood that you could receive a premium for your common stock in an acquisition.

ITEM 1B.    UNRESOLVED STAFF COMMENTS  

None.

ITEM 2.    PROPERTIES 

Our corporate headquarters are located in Bedford, Massachusetts, where we lease approximately 183,000 square feet. This lease expires on May 1, 2020. We lease smaller facilities in Hong Kong; Guangzhou, China; London, England; and Pasadena, California. We do not own any real property. We believe that our leased facilities and additional or alternative space available to us will be adequate to meet our needs for the foreseeable future.

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ITEM 3.    LEGAL PROCEEDINGS 

From time to time and in the ordinary course of business, we are subject to various claims, charges and litigation. The outcome of litigation cannot be predicted with certainty and some lawsuits, claims or proceedings may be disposed of unfavorably to us, which could materially affect our financial condition or results of operations.

ITEM 4.    MINE SAFETY DISCLOSURES

Not Applicable.

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PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES 

Our common stock is listed on the NASDAQ Global Market under the symbol “IRBT”. The following table sets forth, for the periods indicated, the high and low sales prices per share for our common stock as reported on the NASDAQ Global Market.

	High		Low
Fiscal 2013:
First quarter	$	25.76	$	18.25
Second quarter	$	40.12	$	23.76
Third quarter	$	41.12	$	30.85
Fourth quarter	$	38.46	$	28.90
Fiscal 2014:
First quarter	$	48.36	$	32.93
Second quarter	$	44.43	$	30.11
Third quarter	$	42.00	$	30.24
Fourth quarter	$	38.10	$	29.73

As of February 9, 2015, there were approximately 29,672,165 shares of our common stock outstanding held by approximately 105 stockholders of record and the last reported sale price of our common stock on the NASDAQ Global Market on February 9, 2015 was $29.94 per share.

Issuer Purchases of Equity Securities

The following is a summary of our repurchases of our common stock during the three months ended December 27, 2014:

	(a) Total number of Shares Purchased (1)	(b) Average Price Paid per Share		(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)	(d) Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
Period
Fiscal month beginning September 28, 2014 and ended October 25, 2014	55,973	$	29.97	55,973	$	48,300,000
Fiscal month beginning October 26, 2014 and ended November 22, 2014	—	—		—	48,300,000
Fiscal month beginning November 23, 2014 and ended December 27, 2014	—	—		—	48,300,000
Total	55,973	$	29.97	55,973	$	48,300,000

 __________________________

(1) Consists of shares of our common stock. All repurchases were made in open market transactions and pursuant to our previously-announced stock repurchase program.

(2) On April 2, 2014, we announced the adoption of our stock repurchase program. Under the program, we may purchase up to $50 million of our common stock from May 1, 2014 to April 30, 2015.

Dividend Policy

We have never declared or paid any cash dividends on our capital stock. We currently expect to retain future earnings, if any, to finance the growth and development of our business and we do not anticipate paying any cash dividends in the foreseeable future.

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ITEM 6.    SELECTED FINANCIAL DATA

The selected historical financial data set forth below as of December 27, 2014 and December 28, 2013 and for the years ended December 27, 2014, December 28, 2013 and December 29, 2012 are derived from financial statements, which have been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm. Consolidated balance sheets as of December 27, 2014 and December 28, 2013 and the related consolidated statements of income and of cash flows for each of the three years in the period ended December 27, 2014 and notes thereto appear elsewhere in this Annual Report on Form 10-K. The selected historical financial data as of December 29, 2012, December 31, 2011 and January 1, 2011 and for the years ended December 31, 2011 and January 1, 2011 are derived from our financial statements, which have been audited by PricewaterhouseCoopers LLP and which are not included elsewhere in this Annual Report.

In fiscal year 2012, we initiated a reorganization that resulted in, among other things, the centralization of all of our engineering and operations activities. This reorganization was completed at the beginning of fiscal year 2013. In conjunction with this reorganization, we reviewed the financial statement classification of our costs and expenses. As a result of this review, we decided to classify certain expenses differently than had been classified and presented in prior periods to provide a more clear understanding of our financial performance. Because the classification of certain expenses on the income statement changed in fiscal year 2013 as compared to prior periods, we recast the financial results of prior periods in a manner consistent with the fiscal year 2014 and 2013 presentation for comparability purposes. The reclassified amounts reflected in the consolidated statement of income for the year ended December 29, 2012 included herein conform to the fiscal year 2014 and 2013 presentation. Similarly, the following selected consolidated financial data reflects the reclassified amounts for the years ended December 29, 2012, December 31, 2011 and January 1, 2011.

The following selected consolidated financial data should be read in conjunction with our consolidated financial statements, the related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this Annual Report on Form 10-K. The historical results are not necessarily indicative of the results to be expected for any future period.

	Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012		December 31, 2011		January 1, 2011
	(In thousands, except earnings per share amounts)
Consolidated Statements of Income:
Revenue	$	556,846	$	487,401	$	436,244	$	465,500	$	400,952
Cost of revenue	298,791		266,247		241,896		257,847		236,901
Gross margin	258,055		221,154		194,348		207,653		164,051
Operating expenses
Research and development	69,408		63,649		57,066		60,100		51,185
Selling and marketing	86,091		71,529		66,412		50,477		42,778
General and administrative	49,439		53,358		45,698		43,753		36,618
Total operating expenses	204,938		188,536		169,176		154,330		130,581
Operating income	53,117		32,618		25,172		53,323		33,470
Net income	$	37,803	$	27,641	$	17,297	$	40,191	$	25,514
Net income per common share basic	$	1.28	$	0.97	$	0.63	$	1.50	$	1.00
Diluted	$	1.25	$	0.94	$	0.61	$	1.44	$	0.96
Shares used in per common share calculations
Basic	29,485		28,495		27,577		26,712		25,394
Diluted	30,210		29,354		28,301		27,924		26,468

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	December 27, 2014		December 28, 2013		December 29, 2012	December 31, 2011	January 1, 2011
	(In thousands)
Consolidated Balance Sheet Data:
Cash and cash equivalents	$	185,957	$	165,404	126,770	166,308	108,383
Short term investments	36,166		21,954		12,430	17,811	13,928
Total assets	493,213		416,337		354,313	332,213	254,331
Total liabilities	102,777		85,648		78,496	89,255	79,424
Total stockholders’ equity	390,436		330,689		275,817	242,958	174,907

ITEM  7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The information contained in this section has been derived from our consolidated financial statements and should be read together with our consolidated financial statements and related notes included elsewhere in this Annual Report on Form 10-K. This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended, or the Exchange Act, and are subject to the “safe harbor” created by those sections. In particular, statements contained in this Annual Report on Form 10-K that are not historical facts, including, but not limited to statements concerning new product sales, product development and offerings, Roomba, Scooba, Looj, Braava and Mirra products, PackBot tactical military robots, the Small Unmanned Ground Vehicle, FirstLook, Ava, our home robots, defense and security robots and remote presence robots business units, our competition, our strategy, our market position, market acceptance of our products, seasonal factors, revenue recognition, our profits, growth of our revenues, product life cycle revenue, composition of our revenues, our cost of revenues, units shipped, average selling prices, funding of our defense and security robot development programs, operating expenses, selling and marketing expenses, general and administrative expenses, research and development expenses, and compensation costs, our projected income tax rate, our credit and letter of credit facilities, our valuations of investments, valuation and composition of our stock-based awards, and liquidity, constitute forward-looking statements and are made under these safe harbor provisions. Some of the forward-looking statements can be identified by the use of forward-looking terms such as “believes,” “expects,” “may,” “will,” “should,” “could,” “seek,” “intends,” “plans,” “estimates,” “anticipates,” or other comparable terms. Forward-looking statements involve inherent risks and uncertainties, which could cause actual results to differ materially from those in the forward-looking statements. We urge you to consider the risks and uncertainties discussed in greater detail under the heading “Risk Factors” in evaluating our forward-looking statements. We have no plans to update our forward-looking statements to reflect events or circumstances after the date of this report. We caution readers not to place undue reliance upon any such forward-looking statements, which speak only as of the date made.

Overview

iRobot designs and builds robots that empower people to do more. For nearly 25 years, we have developed proprietary technology incorporating advanced concepts in navigation, mobility, manipulation and artificial intelligence to build industry-leading robots. Our home care robots perform time-consuming domestic chores while our defense and security robots perform tasks such as battlefield reconnaissance and bomb disposal, and multi-purpose tasks for law enforcement agencies and first responders, as well as certain commercial users. Our remote presence robots expand the reach of medical care by connecting physicians with patients from anywhere in the world and also provide autonomous telepresence capabilities enabling remote workers to more personally collaborate throughout the workplace. We sell our robots through a variety of distribution channels, including chain stores and other national retailers, through our on-line store, through value-added distributors and resellers, and to the U.S. military and other government agencies worldwide.

As of December 27, 2014, we had 572 full-time employees. We have developed expertise in the disciplines necessary to build durable, high-performance and cost-effective robots through the close integration of software, electronics and hardware. Our core technologies serve as reusable building blocks that we adapt and expand to develop next generation and new products, reducing the time, cost and risk of product development. Our significant expertise in robot design and engineering, combined with our management team’s experience in consumer, military and enterprise markets, positions us to capitalize on the expected growth in the market for robot-based products.

Although we have successfully launched consumer and defense and security products, our continued success depends upon our ability to respond to a number of future challenges. We believe the most significant of these challenges include increasing competition in the markets for both our consumer and defense and security products, and our ability to successfully develop and introduce products and product enhancements into both new and existing markets.

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Our total revenue for 2014 was $556.8 million, which represents a 14% increase from 2013 revenue of $487.4 million. This increase in revenue was largely attributable to a $79.6 million increase in revenue in our home robots business as a direct result of growth in both domestic and international markets, which was primarily driven by expanded distribution of our Roomba 800 series robot worldwide, growth in China and the replacement of the Roomba 500 series robot with the higher-priced Roomba 600 series in club stores. The increase in home robots revenue was partially offset by a decrease in revenue of $4.5 million in our defense and security business related to continued budget reductions within the U.S. government in 2014. We began selling our remote presence robots into the healthcare market and the enterprise market in 2013 and 2014, respectively. However, these sales did not generate meaningful revenue in 2014 or 2013. Our home robots revenue represented 91% of our total 2014 revenue compared to 88% in 2013. We anticipate that our revenue for the next few years will be primarily driven by our rapidly growing home technology business and that our home robots revenue will comprise approximately 90% of our total revenue in the near term.

Our total revenue for 2013 was $487.4 million, which represents a 12% increase from 2012 revenue of $436.2 million. This increase in revenue was largely attributable to a $71.0 million increase in revenue in our home robots business as a direct result of growth in both domestic and international markets. The increase in home robots revenue was partially offset by a decrease in revenue of $20.9 million in our defense and security business related to reductions in new unmanned ground vehicle robots, associated with ongoing budget reductions within the U.S. government. Our home robots revenue represented 88% of our total 2013 revenue compared to 82% in 2012.

Revenue

We currently derive revenue from product sales, government research and development contracts, and commercial research and development contracts. Product revenue is derived from the sale of our various home cleaning robots, defense and security robots and remote presence robots and related accessories. Research and development revenue is derived from the execution of contracts awarded by the U.S. federal government, other governments and a small number of other partners. In the future, we expect to derive increasing revenue from product maintenance and support services due to a focused effort to market these services to the expanding installed base of our robots.

We currently derive a majority of our product revenue from the sale of our home cleaning robots, and to a lesser extent, our PackBot, FirstLook, SUGV and Kobra defense and security robots, and product life cycle revenue related to these robots. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, product revenues accounted for 99.2%, 98.0% and 95.9% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, our funded research and development contracts accounted for approximately 0.8%, 2.0% and 4.1% of our total revenue, respectively.

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, approximately 75.7%, 75.3% and 75.4%, respectively, of our home robot product revenue resulted from sales to 15 customers, which were comprised of both domestic retailers and international distributors. Direct-to-consumer revenue generated through our domestic and international on-line stores accounted for 6.1%, 5.9% and 6.3% of our home robot product revenue for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively. We typically sell our recently launched products direct on-line, and then subsequently offer these products through other channels of distribution.

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, sales to non-U.S. customers accounted for 60.9%, 59.5% and 57.3% of total revenue, respectively.

Our revenue from product sales is generated through sales to our retail distribution channels, our distributor network and to certain U.S. and foreign governments. We recognize revenue from sales of robots under the terms of the customer agreement upon transfer of title and risk of loss to the customer, net of estimated returns, provided that collection is determined to be reasonably assured and no significant obligations remain. During 2014, we recorded a net benefit to revenue and income before income taxes of $4.3 million and $5.7 million, respectively, related to adjustments to our product returns reserves, compared to a net benefit to both revenue and income before income taxes of $7.9 million and $11.0 million related to adjustments to our product returns reserves during fiscal 2013 and 2012, respectively. The net adjustments recorded in 2014 and 2013 resulted from lower product returns experience as compared to estimates used to establish reserves in prior periods, and the favorable adjustments in 2012 were directly attributable to contractual modifications limiting our defective returns liability with certain customers, as well as overall lower defective returns experience.

Revenue from our defense and security robots business are occasionally influenced by the September 30 fiscal year-end of the U.S. federal government. In addition, our revenue can be affected by the timing of the release of new products and the size and timing of contract awards from defense and other government agencies. Historically, revenue from consumer product sales has been significantly seasonal, with a majority of our consumer product revenue generated in the second half of the year (in advance of the holiday season). While the growth of our international consumer business, which is less seasonal than our domestic consumer business, has decreased this seasonality in recent years, a significant portion of our revenue was recorded in the second half of 2014 and we expect this trend to continue into 2015.

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Cost of Revenue

Cost of revenue includes the cost of raw materials and labor that go into the development and manufacture of our products as well as manufacturing overhead costs such as manufacturing engineering, quality assurance, logistics, warranty, third-party consulting, travel and associated direct material costs. Additionally, we include overhead expenses such as indirect engineering labor, occupancy costs associated with the project resources, engineering tools and supplies and program management expenses. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, total cost of revenue was 53.7%, 54.6% and 55.4% of total revenue, respectively. Raw material costs, which are our most significant cost items, can fluctuate materially on a periodic basis, although many components have been historically stable. Additionally, unit costs can vary significantly depending on the mix of products sold. There can be no assurance that our costs of raw materials will not increase. Labor costs also comprise a significant portion of our cost of revenue. We outsource the manufacture of our home robots to contract manufacturers in China. While labor costs in China traditionally have been favorable compared to labor costs elsewhere in the world, including the United States, they have recently been increasing. In addition, fluctuations in currency exchange rates could increase the cost of labor. Consequently, the labor costs for our home robots could increase in the future.

Gross Margin

Our gross margin as a percentage of revenue varies according to the mix of product and contract revenue, the mix of products sold, total sales volume, the level of defective product returns, and levels of other product costs such as warranty, scrap, re-work and manufacturing overhead. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, gross margin was 46.3%, 45.4% and 44.6% of total revenue, respectively.

Research and Development Expenses

Research and development expenses consist primarily of:

• salaries and related costs for our engineers;

• costs for high technology components used in product and prototype development;

• costs of test equipment used during product development; and

• occupancy and other overhead costs.

We have significantly expanded our research and development capabilities and expect to continue to expand these capabilities in the future. We are committed to consistently maintaining the level of innovative design and development of new products as we strive to enhance our ability to serve our existing consumer and military markets as well as new markets for robots, such as telepresence. We anticipate that research and development expenses will increase in absolute dollars but remain relatively consistent as a percentage of revenue in the foreseeable future.

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, research and development expense was $69.4 million, $63.6 million and $57.1 million, or 12.5%, 13.1% and 13.1% of total revenue, respectively.

Selling, General and Administrative Expenses

Our selling, general and administrative expenses consist primarily of:

• salaries and related costs for sales and marketing personnel;

• salaries and related costs for executives and administrative personnel;

• advertising, marketing and other brand-building costs;

• customer service costs;

• professional services costs;

• information systems and infrastructure costs;

• travel and related costs; and

• occupancy and other overhead costs.

We anticipate that selling, general and administrative expenses will increase in absolute dollars but remain relatively consistent, or decrease slightly, as a percentage of revenue in the foreseeable future as we continue to build the iRobot brand.

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 selling, general and administrative expense was $135.5 million, $124.9 million and $112.1 million, or 24.3%, 25.6% and 25.7% of total revenue, respectively.

Fiscal Periods

We operate and report using a 52-53 week fiscal year ending on the Saturday closest to December 31. Accordingly, our

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fiscal quarters will end on the Saturday that falls closest to the last day of the third month of each quarter.

Critical Accounting Policies and Estimates

Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates.

We believe that of our significant accounting policies, which are described in the notes to our consolidated financial statements, the following accounting policies involve a greater degree of judgment and complexity. Accordingly, we believe that the following accounting policies are the most critical to aid in fully understanding and evaluating our consolidated financial condition and results of operations.

Revenue Recognition

We derive our revenue from product sales and, to a lesser extent, government and commercial research and development contracts. We sell products directly to customers and indirectly through resellers and distributors. We recognize revenue from sales of robots under the terms of the customer agreement upon transfer of title and risk of loss to the customer, net of estimated returns, provided that collection is determined to be reasonably assured and no significant obligations remain. Sales to domestic and Canadian resellers of home robots are typically subject to agreements allowing for limited rights of return, rebates and price protection. We also provide limited rights of returns for direct-to-consumer sales generated through our on-line stores. Accordingly, we reduce revenue for our estimates of liabilities for these rights of return, rebates and price protection at the time the related sale is recorded. These estimates for rights of return are directly based on specific terms and conditions included in the reseller agreements, historical returns experience and various other assumptions that we believe are reasonable under the circumstances. In the case of new product introductions, the estimates for returns applied to the new products are based upon the estimates for the most similar predecessor products until such time that we have enough actual returns experience for the new products, which is typically two holiday returns cycles. At that time, we incorporate that data into the development of returns estimates for the new products. We update our analysis of returns on a quarterly basis. If actual returns differ significantly from our estimates, or if modifications to individual reseller agreements are entered into that impact their rights of returns, such differences could result in an adjustment to previously established reserves and could have a material impact, either favorably or unfavorably, on our results of operations for the period in which the actual returns become known or the reseller agreement is modified. Our international distributor agreements do not currently allow for product returns and, as a result, no reserve for returns is established for this group of customers. The estimates and reserve for rebates and price protection are based on specific programs, expected usage and historical experience. Actual results could differ from these estimates.

Under cost-plus-fixed-fee (CPFF) type contracts, we recognize revenue based on costs incurred plus a pro rata portion of the total fixed fee. Costs incurred include labor and material that are directly associated with individual CPFF contracts plus indirect overhead and general and administrative type costs based upon billing rates submitted by the Company to the Defense Contract Management Agency (DCMA). We submit on an annual basis final indirect billing rates to DCMA based upon actual costs incurred throughout the year. In the situation where our final actual billing rates are greater than the estimated rates currently in effect, we record a cumulative revenue adjustment in the period in which the rate differential is collected from the customer. These final billing rates are subject to audit by the Defense Contract Audit Agency (DCAA), which can occur several years after the final billing rates are submitted and may result in material adjustments to revenue recognized based on estimated final billing rates. As of December 27, 2014, fiscal years 2012 through 2014 are open for audit by DCAA. In the situation where our anticipated actual billing rates will be lower than the provisional rates currently in effect, we record a cumulative revenue adjustment in the period in which the rate differential is identified. Revenue on firm fixed price (FFP) contracts is recognized using the percentage-of-completion method. For government product FFP contracts, revenue is recognized as the product is shipped or in accordance with the contract terms. Costs and estimated gross margins on contracts are recorded as revenue as work is performed based on the percentage that incurred costs compare to estimated total costs utilizing the most recent estimates of costs and funding. Changes in job performance, job conditions, and estimated profitability, including those arising from final contract settlements and government audits, may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Since many contracts extend over a long period of time, revisions in cost and funding estimates during the progress of work have the effect of adjusting earnings applicable to past performance in the current period. When the current contract estimate indicates a loss, a provision is made for the total anticipated loss in the current period. Revenue earned in excess of billings, if any, is recorded as unbilled revenue. Billings in excess of revenue earned, if any, are recorded as deferred revenue.

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Accounting for Stock-Based Awards

We recognized $4.1 million of stock-based compensation expense during the fiscal year ended December 27, 2014 for stock options. The unamortized fair value as of December 27, 2014 associated with these grants was $6.6 million with a weighted-average remaining recognition period of 2.47 years.

The risk-free interest rate is derived from the average U.S. Treasury constant maturity rate, which approximates the rate in effect at the time of grant, commensurate with the expected life of the instrument. The dividend yield is zero based upon the fact that we have never paid and have no present intention to pay cash dividends. We utilize company-specific historical data for purposes of establishing expected volatility and expected term.

Based upon the above assumptions, the weighted average fair value of each stock option granted for the fiscal year ended December 27, 2014 was $15.87.

During the fiscal year ended December 27, 2014, we recognized $9.7 million of stock-based compensation associated with restricted stock units. Unamortized expense associated with restricted stock units at December 27, 2014, was $20.1 million.

We have assumed a forfeiture rate for all stock options and restricted stock-based units. In the future, we will record incremental stock-based compensation expense if the actual forfeiture rates are lower than estimated and will record a recovery of prior stock-based compensation expense if the actual forfeitures are higher than estimated.

Accounting for stock-based awards requires significant judgment and the use of estimates, particularly surrounding assumptions such as stock price volatility and expected option lives to value equity-based compensation.

Accounting for Income Taxes

We are subject to taxation in the United States and various states and foreign jurisdictions. The statute of limitations for examinations by federal and state tax authorities is closed for fiscal years prior to 2011. Federal and state carryforward attributes that were generated prior to fiscal year 2011 may still be adjusted upon examination by the Internal Revenue Service (IRS) or state tax authorities if they either have been or will be used in a period for which the statute of limitations is still open.

Deferred taxes are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect in the years in which the differences are expected to reverse. Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

We monitor the realization of our deferred tax assets based on changes in circumstances, for example, recurring periods of income for tax purposes following historical periods of cumulative losses, generation of tax credits compared to future utilization of credits, or changes in tax laws or regulations. Our income tax provision and our assessment of the ability to realize our deferred tax assets involve significant judgments and estimates. We are currently generating state research credits that exceed the amount being utilized. As a result of this trend, a valuation allowance may be needed in the future related to these state tax credits.

As of December 28, 2013, we maintained a valuation allowance of $2.1 million related to certain state tax attributes from the Evolution Robotics, Inc. acquisition, which occurred in October 2012. During the year ended December 27, 2014, this valuation allowance was released when the realization of these state tax attributes became more likely than not.

Warranty

We typically provide a one-year warranty (with the exception of European consumer products which typically have a two-year warranty period, and our defense and security spares and remote presence robots, which typically have a warranty period of less than one year) against defects in materials and workmanship and will either repair the goods, provide replacement products at no charge to the customer or refund amounts to the customer for defective products. We record estimated warranty costs, based on historical experience by product, at the time we recognize product revenue. Actual results could differ from these estimates, which could cause increases or decreases to our warranty reserves in future periods.

Inventory Valuation

We value our inventory at the lower of the actual cost of our inventory or its current estimated market value. We write down inventory for obsolescence or unmarketable inventories based upon assumptions about future demand and market conditions. Actual demand and market conditions may be lower than those that we project and this difference could have a material adverse effect on our gross margin if inventory write-downs beyond those initially recorded become necessary. Alternatively, if actual demand and market conditions are more favorable than those we estimated at the time of such a write-down, our gross margin could be favorably impacted in future periods.

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Long-Lived Assets, including Purchased Intangible Assets

We periodically evaluate the recoverability of long-lived assets, including other purchased intangible assets whenever events and changes in circumstances, such as reductions in demand or significant economic slowdowns in the industry, indicate that the carrying amount of an asset may not be fully recoverable. When indicators of impairment are present, the carrying values of the asset group are evaluated in relation to the future undiscounted cash flows of the underlying business. The net book value of the underlying asset is adjusted to fair value if the sum of the expected discounted cash flows is less than book value. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.

Overview of Results of Operations

The following table sets forth our results of operations for the periods shown:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Revenue	$	556,846		$	487,401		$	436,244
Cost of revenue (1)	298,791			266,247			241,896
Gross margin	258,055			221,154			194,348
Operating expenses
Research and development(1)	69,408			63,649			57,066
Selling and marketing(1)	86,091			71,529			66,412
General and administrative(1)	49,439			53,358			45,698
Total operating expenses	204,938			188,536			169,176
Operating income	53,117			32,618			25,172
Other income (expense), net	(708		)	(203		)	435
Income before income taxes	52,409			32,415			25,607
Income tax expense	14,606			4,774			8,310
Net income	$	37,803		$	27,641		$	17,297

 ___________________

(1) Stock-based compensation recorded in fiscal 2014, 2013 and 2012 breaks down by expense classification as follows.

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
	(In thousands)
Cost of revenue	$	865	$	700	$	889
Research and development	3,359		2,700		1,904
Selling and marketing	1,296		1,246		808
General and administrative	8,258		8,763		7,382

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The following table sets forth our results of operations as a percentage of revenue for the periods shown:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
Revenue	100.0	%	100.0	%	100.0	%
Cost of revenue	53.7		54.6		55.4
Gross margin	46.3		45.4		44.6
Operating expenses
Research and development	12.5		13.1		13.1
Selling and marketing	15.5		14.7		15.2
General and administrative	8.9		10.9		10.5
Total operating expenses	36.9		38.7		38.8
Operating income	9.4		6.7		5.8
Other income (expense), net	(0.1	)	—		0.1
Income before income taxes	9.3		6.7		5.9
Income tax expense	2.6		1.0		1.9
Net income	6.7	%	5.7	%	4.0	%

Comparison of Years Ended December 27, 2014 and December 28, 2013

Revenue

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		Dollar Change		Percent Change
	(In thousands)
Total Revenue	$	556,846	$	487,401	$	69,445	14.2	%

Our revenue increased 14.2% to $556.8 million in fiscal 2014 from $487.4 million in fiscal 2013. Revenue increased $79.6 million, or 18.6%, in our home robots business unit, and decreased $4.5 million, or 9.0%, in our defense and security business unit.

The $79.6 million increase in revenue from our home robots business unit was driven by a 12.5% increase in units shipped and a 6.1% increase in net average selling price. In fiscal 2014, international home robots revenue increased $46.0 million, or 16.8%, and domestic home robots revenue increased $33.5 million, or 21.8%, compared to fiscal 2013. Total home robots shipped in fiscal 2014 were 2,174,000 units compared to 1,933,000 units in fiscal 2013. The increase in both domestic and international home robots revenue was primarily driven by expanded distribution of our Roomba 800 series robot worldwide, and the replacement of the Roomba 500 series robot with the higher-priced Roomba 600 series in club stores. International home robots revenue growth was further supported by strong demand in China, where revenue increased over 200% in fiscal 2014 compared to fiscal 2013.

The $4.5 million decrease in revenue from our defense and security robots business unit was driven by a $4.7 million decrease in defense and security robot revenue and a $1.2 million decrease in recurring contract development revenue generated under research and development contracts, partially offset by a $1.4 million increase in product life cycle revenue (spare parts, accessories). Total defense and security robots shipped in fiscal 2014 were 265 units compared to 534 units in fiscal 2013, while the net average selling price of our defense and security robots increased from approximately $36 thousand in fiscal 2013 to approximately $56 thousand in fiscal 2014. The decrease in the number of units shipped and the increase in average selling price resulted from decreased sales of our lower-priced FirstLook robot in fiscal 2014 as compared to fiscal 2013. The $1.2 million decrease in contract revenue was primarily due to a decrease in revenue related to the U.S. Army's Brigade Combat Team Modernization program, for which efforts were completed during the first half of fiscal 2013. The $1.4 million increase in product life cycle revenue was due to an increase in Packbot upgrades, partially offset by decreases in FirstLook and SUGV spares. Continued funding delays for government contracts have reduced our near-term visibility in our defense and security robots business unit and contributed to the decrease in period-over-period revenue in this business unit. We cannot predict with any certainty the extent to which these funding delays will continue.

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Cost of Revenue

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change		Percent Change
	(In thousands)
Total cost of revenue	$	298,791		$	266,247		$	32,544	12.2	%
As a percentage of total revenue	53.7		%	54.6		%

Total cost of revenue increased $32.5 million, or 12.2% to $298.8 million in fiscal 2014, compared to $266.2 million in fiscal 2013. The increase is primarily due to the 12.5% increase in home robot units shipped, as well as the increase in per unit costs of defense and security robots driven by a lower mix of the lower-cost FirstLook robot in fiscal 2014 compared to fiscal 2013. These increases are partially offset by the 50.4% decrease in defense and security units shipped in fiscal 2014 as compared to fiscal 2013.

Gross Margin

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change		Percent Change
	(In thousands)
Total gross margin	$	258,055		$	221,154		$	36,901	16.7	%
As a percentage of total revenue	46.3		%	45.4		%

Gross margin increased $36.9 million, or 16.7%, to $258.1 million (46.3% of revenue) in fiscal 2014 from $221.2 million (45.4% of revenue) in fiscal 2013. The increase in gross margin as a percentage of revenue was the result of the home robots business unit gross margin increasing 1.2 percentage points, partially offset by the defense and security business unit gross margin decreasing 3.7 percentage points. The 1.2 percentage point increase in the home robots business unit was primarily driven by favorable product and customer mix, with increased volume of higher margin Roomba 800 and 600 series robots in fiscal 2014 compared to fiscal 2013. During 2014, we recorded a net benefit to revenue and gross margin of $4.3 million and $5.7 million, respectively, related to adjustments to our product returns reserves, compared to a net benefit to both revenue and gross margin of $7.9 million related to adjustments to our product returns reserves during fiscal 2013. The net adjustments recorded in each period resulted from lower product returns experience as compared to estimates used to establish reserves in prior periods. The favorable product and customer mix was partially offset by the decrease in favorable adjustments to our product returns reserve in fiscal 2014 compared to fiscal 2013. The 3.7 percentage point decrease in the defense and security robots business unit is attributable to unfavorable overhead leverage associated with the 9.0% decrease in the defense and security robots business unit revenue.

Research and Development

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change		Percent Change
	(In thousands)
Total research and development	$	69,408		$	63,649		$	5,759	9.0	%
As a percentage of total revenue	12.5		%	13.1		%

Research and development expenses increased $5.8 million, or 9.0%, to $69.4 million (12.5% of revenue) in fiscal 2014 from $63.6 million (13.1% of revenue) in fiscal 2013. This increase is attributable to increased efforts in product development and continued product enhancements, including increases in consultant and other people-related costs of $3.5 million in 2014 compared to 2013.

Selling and Marketing

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change		Percent Change
	(In thousands)
Total selling and marketing	$	86,091		$	71,529		$	14,562	20.4	%
As a percentage of total revenue	15.5		%	14.7		%

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Selling and marketing expenses increased by $14.6 million, or 20.4%, to $86.1 million (15.5% of revenue) in fiscal 2014 from $71.5 million (14.7% of revenue) in fiscal 2013. This increase is primarily attributable to $11.6 million in promotions, marketing displays, on-line media and other selling and marketing costs incurred to support the retail launch of the Roomba 800 series and Scooba 450 robots and our continued global marketing and branding efforts, as well as increases in people-related costs of $2.6 million driven by increased headcount in fiscal 2014 compared to fiscal 2013.

General and Administrative

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change			Percent Change
	(In thousands)
General and administrative	$	49,439		$	53,358		$	(3,919	)	(7.3	)%
As a percentage of total revenue	8.9		%	10.9		%

General and administrative expenses decreased by $3.9 million, or 7.3%, to $49.4 million (8.9% of revenue) in fiscal 2014 from $53.4 million (10.9% of revenue) in fiscal 2013. This decrease is primarily attributable to a $3.9 million decrease in people-related costs. Additionally, we recorded a $1.8 million write-down of an intangible asset in fiscal 2013, resulting from a decision made in 2013 to refocus our funded research activities that significantly reduced our utilization of the technology associated with the intangible asset, with no such write-down in fiscal 2014. These decreases are partially offset by increases in consulting and other miscellaneous general and administrative costs.

Other Income (Expense), Net

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change			Percent Change
	(In thousands)
Other Income (expense), net	$	(708	)	$	(203	)	$	(505	)	248.8	%
As a percentage of total revenue	(0.1		)%	0.0		%

Other income (expense), net, amounted to $(0.7) million and $(0.2) million for fiscal 2014 and fiscal 2013, respectively, and consisted primarily foreign currency exchange losses resulting from foreign currency exchange rate fluctuations, offset by interest income.

Income Tax Provision

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			Dollar Change		Percent Change
	(In thousands)
Income tax provision	$	14,606		$	4,774		$	9,832	205.9	%
As a percentage of pre-tax income	27.9		%	14.7		%

We recorded an income tax provision of $14.6 million and $4.8 million for fiscal 2014 and fiscal 2013, respectively. The $14.6 million income tax provision for fiscal 2014 was based upon a 2014 effective income tax rate of 31.5% plus a net income tax benefit of $1.9 million primarily resulting from the release of $2.1 million of valuation allowance related to certain state tax attributes of Evolution Robotics, Inc. The $4.8 million provision for fiscal 2013 was based upon a 2013 effective income tax rate of 28.5% plus a net income tax benefit of $4.5 million primarily resulting from the extension of the federal research and development tax credit in 2013 and the settlement of uncertain tax positions upon completion of an IRS audit.

In January 2013, legislation was enacted that included the extension of the federal research and development tax credits. The legislation retroactively reinstated the research and development tax credit for 2012 and extended it through December 31, 2013. As a result, we recorded a discrete benefit of approximately $1.7 million related to 2012 in 2013.

The federal research and development tax credit expired at the end of 2014. The federal research and development tax credit has not yet been enacted for 2015 and, unless retroactively reinstated, will cause our 2015 effective tax rate to increase.

The increase in the effective tax rate from 28.5% in 2013 to 31.5% in 2014 was primarily due to a smaller research and development credit in 2014 as compared to 2013 and an increase in state tax expense in 2014 as compared to 2013.

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Comparison of Years Ended December 28, 2013 and December 29, 2012

Revenue

	Fiscal Year Ended
	December 28, 2013		December 29, 2012		Dollar Change		Percent Change
	(In thousands)
Total Revenue	$	487,401	$	436,244	$	51,157	11.7	%

Our revenue increased 11.7% to $487.4 million in fiscal 2013 from $436.2 million in fiscal 2012. Revenue increased $71.0 million, or 19.9%, in our home robots business unit, and decreased $20.9 million, or 29.5%, in our defense and security business unit.

The $71.0 million increase in revenue from our home robots business unit was driven by a 19.2% increase in units shipped and a 4.1% increase in net average selling price. In fiscal 2013, international home robots revenue increased $34.6 million and domestic home robots revenue increased $36.4 million. Total home robots shipped in fiscal 2013 were 1,933,000 units compared to 1,621,000 units in fiscal 2012. The increase in home robots business unit revenue and units shipped was primarily attributable to a 30.9% increase in domestic sales of our home robots products and a 14.5% increase in international sales of our home robots products. The increase in domestic sales of our home robots products was primarily attributable to increased sales to domestic retail stores driven by the success of our recent domestic advertising campaign, and expanded distribution of our Roomba 700 and 600 series robots. The increase in international sales is due primarily to increased demand in our Asian markets, partially offset by a decrease in sales in our European markets. The increased demand in our Asian markets was driven by demand for our Roomba 700 and 600 series robots, and the introduction of our Braava robot. In addition, net average selling prices in the home robots business unit increased due to increased volume of higher priced products including the Roomba 700 and 600 series robots, and fewer sales of our lower priced Roomba series.

The $20.9 million decrease in revenue from our defense and security robots business unit was driven by a $1.3 million decrease in defense and security robot revenue, a $9.4 million decrease in recurring contract development revenue generated under research and development contracts, and a $10.2 million decrease in product life cycle revenue (spare parts, accessories). The net average selling price of our defense and security robots decreased by 52.6% due to product mix primarily attributable to an increase in FirstLook units shipped in 2013, which have a lower selling price than the SUGV units that comprised a larger portion of the units shipped in 2012. Total defense and security robots shipped in 2013 were 534 units compared to 274 units in 2012. The $1.3 million decrease in defense and security robot revenue resulted from decreased shipments of higher priced SUGV robots in 2013 compared to 2012. The $9.4 million decrease in recurring contract development revenue generated under research and development contracts was primarily the result of decreases in government funding for our SUGV programs. The $10.2 million decrease in product life cycle revenue was due to reduction in spares associated with lower robot sales and a decrease in PackBot upgrades. Continued funding delays for government contracts have reduced our near-term visibility in our defense and security robots business unit and contributed to the decrease in period-over-period revenue in this business unit. We cannot predict with any certainty the extent to which these funding delays will continue.

Cost of Revenue

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change		Percent Change
	(In thousands)
Total cost of revenue	$	266,247		$	241,896		$	24,351	10.1	%
As a percentage of total revenue	54.6		%	55.4		%

Total cost of revenue increased to $266.2 million in fiscal 2013, compared to $241.9 million in fiscal 2012. The increase is primarily due to the 19.2% increase in home robot units shipped and the 94.9% increase in defense and security units shipped in fiscal 2013 as compared to fiscal 2012. Additionally, favorable adjustments of $5.2 million relating to reductions in our international warranty accrual for our home robots business, attributable to declining warranty cost experience were recorded in 2012 with no such adjustments recorded in 2013.

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Gross Margin

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change		Percent Change
	(In thousands)
Total gross margin	$	221,154		$	194,348		$	26,806	13.8	%
As a percentage of total revenue	45.4		%	44.6		%

Gross margin increased $26.8 million, or 13.8%, to $221.2 million (45.4% of revenue) in fiscal 2013 from $194.3 million (44.6% of revenue) in fiscal 2012. The increase in gross margin as a percentage of revenue was the result of the defense and security business unit gross margin increasing 7.1 percentage points offset by the home robots business unit gross margin decreasing 1.7 percentage points. The 7.1 percentage point increase in the defense and security robots business unit is attributable to improved leverage of our overhead expense in 2013 as compared to 2012, as well as higher excess and obsolete inventory costs in 2012, with no material excess and obsolete inventory costs in 2013. During 2013 and 2012, we recorded favorable adjustments to our return provision due to gradual improvements in returns resulting from sustained investment in product quality of $7.9 million and $11.0 million, respectively. Additionally, we recorded favorable adjustments of $5.2 million relating to reductions in our international warranty accrual for our home robots business, attributable to declining warranty cost experience in 2012 with no such adjustments recorded in 2013. The 1.7 percentage point decrease in the home robots business unit gross margin resulted from the $8.3 million decrease in these favorable adjustments to our return provision and warranty accrual, partially offset by increased volume of higher margin products including the Roomba 700 and 600 series robots, and fewer sales of our lower margin Roomba series.

Research and Development

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change		Percent Change
	(In thousands)
Total research and development	$	63,649		$	57,066		$	6,583	11.5	%
As a percentage of total revenue	13.1		%	13.1		%

Research and development expenses increased $6.6 million, or 11.5%, to $63.6 million (13.1% of revenue) in fiscal 2013 from $57.1 million (13.1% of revenue) in fiscal 2012. This increase is attributable to increased efforts in product development and continued product enhancements in 2013 compared to 2012, as well as research and development costs associated with Evolution, which was acquired on October 1, 2012.

Selling and Marketing

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change		Percent Change
	(In thousands)
Total selling and marketing	$	71,529		$	66,412		$	5,117	7.7	%
As a percentage of total revenue	14.7		%	15.2		%

Selling and marketing expenses increased by $5.1 million, or 7.7%, to $71.5 million (14.7% of revenue) in fiscal 2013 from $66.4 million (15.2% of revenue) in fiscal 2012. This increase is primarily attributable to marketing expenses incurred during 2013 as part of our continued global marketing and branding efforts.

General and Administrative

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change		Percent Change
	(In thousands)
General and administrative	$	53,358		$	45,698		$	7,660	16.8	%
As a percentage of total revenue	10.9		%	10.5		%

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General and administrative expenses increased by $7.7 million, or 16.8%, to $53.4 million (10.9% of revenue) in fiscal 2013 from $45.7 million (10.5% of revenue) in fiscal 2012. This increase is primarily attributable to a $5.8 million increase in compensation costs, and a $1.8 million write-down of an intangible asset in 2013, resulting from a decision made in 2013 to refocus our funded research activities that significantly reduced our utilization of the technology associated with the intangible asset.

Other Income (Expense), Net

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change			Percent Change
	(In thousands)
Other Income (expense), net	$	(203	)	$	435		$	(638	)	(146.7	)%
As a percentage of total revenue	—		%	0.1		%

Other income (expense), net, amounted to $(0.2) million and $0.4 million for fiscal 2013 and fiscal 2012, respectively, and consisted primarily of interest income offset by foreign currency exchange losses resulting from foreign currency exchange rate fluctuations.

Income Tax Provision

	Fiscal Year Ended
	December 28, 2013			December 29, 2012			Dollar Change			Percent Change
	(In thousands)
Income tax provision	$	4,774		$	8,310		$	(3,536	)	(42.6	)%
As a percentage of pre-tax income	14.7		%	32.5		%

We recorded an income tax provision of $4.8 million and $8.3 million for fiscal 2013 and fiscal 2012, respectively. The $4.8 million income tax provision for fiscal 2013 was based upon a 2013 effective income tax rate of 28.5% plus a net income tax benefit of $4.5 million primarily resulting from the extension of the federal research and development tax credit in 2013 and the settlement of uncertain tax positions upon completion of an IRS audit. The $8.3 million provision for fiscal 2012 was based upon a 2012 effective income tax rate of 30.3% plus a net income tax expense of $0.6 million primarily resulting from the true-up of prior year permanent items.

In January 2013, legislation was enacted that included the extension of the federal research and development tax credits. The legislation retroactively reinstated the research and development tax credit for 2012 and extended it through December 31, 2013. As a result, we recorded a discrete benefit of approximately $1.7 million related to 2012 in 2013.

The federal research and development tax credit expired at the end of 2013. The federal research and development tax credit has not yet been enacted for 2014 and, unless retroactively reinstated, will cause our 2014 effective tax rate to increase.

The decrease in the effective tax rate from 30.3% in 2012 to 28.5% in 2013 was primarily due to the extension of the federal research and development tax credit, offset by an increase in state taxes.

Liquidity and Capital Resources

At December 27, 2014, our principal sources of liquidity were cash and cash equivalents totaling $186.0 million, short-term investments of $36.2 million and accounts receivable of $71.1 million.

We manufacture and distribute our products through contract manufacturers and third-party logistics providers. We believe that this approach gives us the advantages of relatively low capital investment and significant flexibility in scheduling production and managing inventory levels. By leasing our office facilities, we also minimize the cash needed for expansion. Accordingly, our capital spending is generally limited to leasehold improvements, computers, office furniture, product-specific production tooling, internal use software and test equipment. In the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, we spent $13.8 million, $6.8 million and $6.8 million respectively, on capital equipment.

Our strategy for delivering home robots products to our distributors and retail customers gives us the flexibility to provide container shipments directly to the retailer from China and, alternatively, allows our distributors and retail partners to take possession of product on a domestic basis. Accordingly, our home robots product inventory consists of goods shipped to our third-party logistics providers for the fulfillment of distributor, retail and direct-to-consumer sales. Our inventory of defense and security products consists mostly of components, as well as carefully-managed levels of sub-assemblies. Our contract manufacturers are also responsible for purchasing and stocking components required for the production of our products, and they typically invoice us when the finished goods are shipped.

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The balance of cash, cash equivalents and short-term investments of $222.1 million at December 27, 2014 is primarily the result of our increased profitability, as well as our on-going focus on managing working capital. In 2014, we generated $40.6 million of cash from operations. As of December 27, 2014, we did not have any borrowings outstanding under our working capital line of credit and had $3.2 million in letters of credit outstanding under our revolving letter of credit facility.

Discussion of Cash Flows

Comparison of Years Ended December 27, 2014 and December 28, 2013

Net cash provided by operating activities for the fiscal year ended December 27, 2014 was $40.6 million, a decrease of $1.3 million compared to the $41.9 million of net cash provided by operating activities for the fiscal year ended December 28, 2013. The decrease in net cash provided by operating activities was primarily driven by a decrease in cash of $23.9 million resulting from an increase in accounts receivable (including unbilled revenues) of $33.5 million in 2014 compared to an increase of $9.6 million in 2013, primarily due to an increase in 2014 revenue, normal billing and collection activities and timing of the billing in the respective periods, and a decrease in cash of $11.1 million resulting from a decrease in accrued compensation of $3.4 million in 2014 compared to an increase in accrued compensation of $7.8 million in 2013 reflecting a higher accrual for incentive compensation in 2013 compared to the prior year and to the accrual in 2014. These decreases were partially offset by an increase in cash of $10.2 million resulting from net income of $37.8 million in 2014 compared to net income of $27.6 million in 2013, an increase in cash of $18.0 million resulting from an increase in accounts payable of $16.2 million in 2014 compared to a decrease in accounts payable of $1.7 million in 2013 as a result of normal purchasing and vendor payment activities, and an increase in cash of $7.0 million resulting from an increase in inventory of $2.4 million in 2014 compared to an increase of $9.4 million in 2013, primarily due to an increase in 2014 revenue and a decrease in the days of inventory on hand to 53 days in 2014 from 63 days in 2013.

Net cash used in investing activities for the fiscal year ended December 27, 2014 was $28.7 million, an increase of $10.7 million compared to the $18.1 million of net cash used in investing activities for the fiscal year ended December 28, 2013. This increase in net cash used in investing activities was primarily due to an increase in the purchase of property and equipment of $6.9 million, with purchases of $13.8 million, including $3.5 million for leasehold improvements in our Bedford, Massachusetts office, compared to purchases of $6.8 million in 2013, and an increase in the net purchase of marketable securities of $4.8 million, with net purchase of marketable securities of $14.7 million in 2014 compared to the net purchase of marketable securities of $9.9 million in 2013. This increase was partially offset by a decrease in cash paid for acquisitions and strategic investments of $1.8 million, with a strategic investment of $250 thousand in the preferred shares of Paracosm, Inc. in 2014 compared to $2.0 million paid for the purchase of the preferred shares of InTouch Technologies, Inc. in 2013.

Net cash provided by financing activities for the fiscal year ended December 27, 2014 was $8.7 million, a decrease of $6.1 million compared to the $14.8 million of net cash provided by financing activities for the fiscal year ended December 28, 2013. The decrease is due primarily to a decrease in the proceeds from stock option exercises of $4.7 million and an increase in funds used for the repurchase of shares, with repurchases of $1.7 million in 2014 compared to zero in 2013.

Comparison of Years Ended December 28, 2013 and December 29, 2012

Net cash provided by operating activities for the fiscal year ended December 28, 2013 was $41.9 million, an increase of $4.0 million compared to the $37.9 million of net cash provided by operating activities for the fiscal year ended December 29, 2012. The increase in net cash provided by operating activities was primarily driven by an increase in cash of $10.3 million resulting from net income of $27.6 million in 2013 compared to net income of $17.3 million in 2012, an increase in cash of $13.9 million resulting from an increase in accrued compensation of $7.8 million in 2013 compared to a decrease in accrued compensation of $6.1 million in 2012 reflecting a higher accrual for incentive compensation in 2013, an increase in cash of $6.9 million resulting from a decrease in accounts payable of $1.7 million in 2013 compared to a decrease in accounts payable of $8.7 million in 2012 as a result of normal purchasing and vendor payment activities, an increase in cash of $4.9 million resulting from a decrease in other assets of $2.0 million in 2013 compared to an increase in other assets of $2.9 million in 2012, resulting primarily from a decrease in prepaid income taxes in 2013 compared to an increase in prepaid income taxes in 2012, and an increase in cash of $3.0 million resulting from an increase in deferred income taxes of $0.8 million in 2013 compared to an increase of $3.8 million in 2012, resulting primarily from the addition of deferred tax assets associated with the acquisition of Evolution Robotics in 2012 and the net effect of changes in deferred tax assets and liabilities associated with operating assets and liabilities. These increases were partially offset by a decrease in cash of $25.5 million resulting from an increase in accounts receivable (including unbilled revenue) of $9.9 million in 2013 compared to a decrease of $15.6 million in 2012, primarily due to an increase in 2013 revenue and an increase in the DSO (days sales outstanding) to 29 days in 2013 from 28 days in 2012, and a decrease in cash of $8.6 million resulting from an increase in inventory of $9.4 million in 2013 compared to an increase of $0.8 million in 2012, primarily due to an increase in 2013 revenue and an increase in the days of inventory on hand to 63 days in 2013 from 61 days in 2012.

Net cash used in investing activities for the fiscal year ended December 28, 2013 was $18.1 million, representing a decrease of $64.3 million compared to the $82.4 million of net cash used in investing activities for the fiscal year ended

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December 29, 2012. This decrease in net cash used in investing activities was primarily due to a decrease in cash paid for acquisitions and strategic investments of $78.5 million, with a strategic investment of $2.0 million in the preferred shares of InTouch Technologies, Inc. in 2013 compared to $74.5 million paid for the acquisition of Evolution Robotics and $6.0 million paid for the purchase of the preferred shares of InTouch Technologies, Inc. in 2012. This decrease was partially offset by cash used in the net purchase of marketable securities of $9.9 million in 2013 compared to the net sale of marketable securities of $4.9 million in 2012.

Net cash provided by financing activities for the fiscal year ended December 28, 2013 was $14.8 million, an increase of $9.8 million compared to the $5.0 million of net cash provided by financing activities for the fiscal year ended December 29, 2012. The increase is due primarily to an increase in the proceeds from stock option exercises of $9.3 million.

Working Capital Facilities

Credit Facility

We have an unsecured revolving credit facility with Bank of America, N.A., which is available to fund working capital and other corporate purposes. As of December 27, 2014, the total amount available for borrowing under our credit facility was $75.0 million and the full amount was available for borrowing. The interest on loans under our credit facility accrues, at our election, at either (1) LIBOR plus a margin, currently equal to 1.0%, based on our ratio of indebtedness to Adjusted EBITDA (the Eurodollar Rate), or (2) the lender’s base rate. The lender’s base rate is equal to the highest of (1) the federal funds rate plus 0.5%, (2) the lender’s prime rate and (3) the Eurodollar Rate plus 1.0%. The credit facility termination date is December 20, 2018.

As of December 27, 2014, we had no outstanding borrowings under our working capital line of credit. This credit facility contains customary terms and conditions for credit facilities of this type, including restrictions on our ability to incur or guaranty additional indebtedness, create liens, enter into transactions with affiliates, make loans or investments, sell assets, pay dividends or make distributions on, or repurchase, our stock, and consolidate or merge with other entities.

In addition, we are required to meet certain financial covenants customary with this type of agreement, including maintaining a minimum ratio of indebtedness to Adjusted EBITDA and a minimum specified interest coverage ratio.

This credit facility contains customary events of default, including for payment defaults, breaches of representations, breaches of affirmative or negative covenants, cross defaults to other material indebtedness, bankruptcy and failure to discharge certain judgments. If a default occurs and is not cured within any applicable cure period or is not waived, our obligations under the credit facility may be accelerated.

As of December 27, 2014, we were in compliance with all covenants under the revolving credit facility.

Letter of Credit Facility

We have an unsecured revolving letter of credit facility with Bank of America, N.A. The credit facility is available to fund letters of credit on our behalf up to an aggregate outstanding amount of $5 million. We may terminate at any time, subject to proper notice, or from time to time permanently reduce the amount of the credit facility.

We pay a fee on outstanding letters of credit issued under the credit facility of up to 1.5% per annum of the outstanding letters of credit. The maturity date for letters of credit issued under the credit facility must be no later than 365 days following the maturity date of the credit facility.

As of December 27, 2014, we had letters of credit outstanding of $3.2 million under our revolving letter of credit facility. The credit facility contains customary terms and conditions for credit facilities of this type, including restrictions on our ability to incur or guaranty additional indebtedness, create liens, enter into transactions with affiliates, make loans or investments, sell assets, pay dividends or make distributions on, or repurchase, our stock, and consolidate or merge with other entities. In addition, we are required to meet certain financial covenants customary with this type of agreement, including maintaining a minimum ratio of indebtedness to Adjusted EBITDA and a minimum specified ratio of EBIT to interest expense.

The credit facility also contains customary events of default, including for payment defaults, breaches of representations, breaches of affirmative or negative covenants, cross defaults to other material indebtedness, bankruptcy, and failure to discharge certain judgments. If a default occurs and is not cured within any applicable cure period or is not waived, the lender may accelerate the obligations under the credit facility.

As of December 27, 2014, we were in compliance with all covenants under the revolving letter of credit facility.

Working Capital and Capital Expenditure Needs

We currently have no material cash commitments, except for normal recurring trade payables, expense accruals and operating leases, all of which we anticipate funding through working capital, funds provided by operating activities and our

37

existing working capital line of credit. We do not currently anticipate significant investment in property, plant and equipment, and we believe that our outsourced approach to manufacturing provides us with flexibility in both managing inventory levels and financing our inventory. We believe our existing cash and cash equivalents, short-term investments, cash provided by operating activities, and funds available through our working capital line of credit will be sufficient to meet our working capital and capital expenditure needs over at least the next twelve months. In the event that our revenue plan does not meet our expectations, we may eliminate or curtail expenditures to mitigate the impact on our working capital. Our future capital requirements will depend on many factors, including our rate of revenue growth, the expansion of our marketing and sales activities, the timing and extent of spending to support product development efforts, the timing of introductions of new products and enhancements to existing products, the acquisition of new capabilities or technologies, and the continuing market acceptance of our products and services. Moreover, to the extent that existing cash and cash equivalents, short-term investments, cash from operations, and cash from short-term borrowing are insufficient to fund our future activities, we may need to raise additional funds through public or private equity or debt financing. As part of our business strategy, we may consider additional acquisitions of companies, technologies and products, which could also require us to seek additional equity or debt financing. Additional funds may not be available on terms favorable to us or at all.

Contractual Obligations

We generally do not enter into binding purchase commitments. Our principal commitments consist of obligations under our working capital line of credit, leases for office space and minimum contractual obligations for services. Other obligations consist of software licensing arrangements and advertising agreements for corporate branding. The following table describes our commitments to settle contractual obligations in cash as of December 27, 2014:

	Payments Due by Period
	Less Than 1  Year		1 to 3 Years		3 to 5 Years		More Than 5  Years		Total
	(In thousands)
Operating leases	$	3,460	$	5,053	$	4,766	$	794	$	14,073
Other obligations	523		125		—		—		648
Total	$	3,983	$	5,178	$	4,766	$	794	$	14,721

At December 27, 2014, we had outstanding purchase orders aggregating approximately $78.1 million. The purchase orders, the majority of which are with our contract manufacturers for the purchase of inventory in the normal course of business, are for manufacturing and non-manufacturing related goods and services, and are generally cancelable without penalty.  In circumstances where we determine that we have financial exposure associated with any of these commitments, we record a liability in the period in which that exposure is identified.

Off-Balance Sheet Arrangements

As of December 27, 2014, we had no off-balance sheet arrangements as defined in Item 303(a)(4) of Regulation S-K.

Recently Issued Accounting Pronouncements

In August 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-15, “Presentation of Financial Statements - Going Concern.” ASU No. 2014-15 requires management of public and private companies to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management will also be required to evaluate and disclose whether its plans alleviate that doubt. The new standard is effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016. We do not believe that the impact of this amendment will be material to our consolidated financial statements.

In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” ASU No. 2014-12 requires a reporting entity to treat a performance target that affects vesting and that could be achieved after the requisite service period as a performance condition. It is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. We are currently assessing the potential impact of ASU No. 2014-12 on our consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in

38

exchange for those goods or services. The new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. We are currently assessing the potential impact of ASU No. 2014-09 on our consolidated financial statements.

On April 10, 2014, the FASB issued ASU No. 2014-08 “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU No. 2014-08 changes the criteria for reporting discontinued operations and modifies related disclosure requirements. The new guidance is effective on a prospective basis for fiscal years beginning after December 15, 2014, and interim periods within annual periods beginning on or after December 15, 2015. Early adoption is permitted for new disposals (or new classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. We are currently assessing the future impact of ASU No. 2014-08 on our consolidated financial statements.

In July 2013, the FASB issued ASU 2013-11 “Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Exists”, related to the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists.  This guidance clarifies prior guidance and eliminates diversity in practice on the presentation of unrecognized tax benefits when certain situations exist at the reporting date.  This guidance is effective for annual reporting periods beginning on or after December 15, 2013 and subsequent interim periods.  The impact of this amendment on our consolidated financial statements was not material.

From time to time, new accounting pronouncements are issued by FASB that are adopted by us as of the specified effective date. Unless otherwise discussed, we believe that the impact of recently issued standards, which are not yet effective, will not have a material impact on our consolidated financial statements upon adoption.

ITEM 7A.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Foreign Currency Exchange Risk

We maintain sales and business operations in foreign countries. As such, we have exposure to adverse changes in exchange rates associated with operating expenses of our foreign operations, but we believe this exposure to be immaterial. Additionally, we accept orders for home robots products in currencies other than the U.S. dollar. We regularly monitor the level of non-U.S. dollar accounts receivable balances to determine if any actions, including possibly entering into foreign currency forward contracts, should be taken to minimize the impact of fluctuating exchange rates on our results of operations. Our international revenue is primarily denominated in U.S. dollars and therefore any fluctuations in the Euro or any other non-U.S. dollar currencies will have minimal direct impact on our international revenue. However, as the U.S. dollar strengthens or weakens against other currencies, our international distributors may be impacted, which could affect their profitability and our ability to maintain current pricing levels on our international consumer products.

Interest Rate Sensitivity

At December 27, 2014, we had unrestricted cash and cash equivalents of $186.0 million and short term investments of $36.2 million. The unrestricted cash and cash equivalents are held for working capital purposes. We do not enter into investments for trading or speculative purposes. Some of the securities in which we invest, however, may be subject to market risk. This means that a change in prevailing interest rates may cause the fair market value of the investment to fluctuate. To minimize this risk in the future, we intend to maintain our portfolio of cash equivalents in a variety of securities, commercial paper, money market funds, debt securities and certificates of deposit. Due to the short-term nature of these investments, we believe that we do not have any material exposure to changes in the fair value of our investment portfolio as a result of changes in interest rates. As of December 27, 2014, all of our cash and cash equivalents were held in demand deposits and money market accounts.

Our exposure to market risk also relates to the increase or decrease in the amount of interest expense we must pay on any outstanding debt instruments, primarily certain borrowings under our working capital line of credit. The advances under the working capital line of credit bear a variable rate of interest determined at the time of the borrowing. At December 27, 2014, we had letters of credit outstanding of $3.2 million under our revolving letter of credit facility.

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ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

iROBOT CORPORATION

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

	Page
Report of Independent Registered Public Accounting Firm	41
Consolidated Balance Sheets at December 27, 2014 and December 28, 2013	42
Consolidated Statements of Income for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012	43
Consolidated Statements of Comprehensive Income for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012	43
Consolidated Statements of Stockholders’ Equity for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012	45
Consolidated Statements of Cash Flows for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012	46
Notes to Consolidated Financial Statements	47

40

Report of Independent Registered Public Accounting Firm

Tothe Board of Directors and Stockholders of

iRobot Corporation:

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of income, comprehensive income, stockholders’ equity and cash flows present fairly, in all material respects, the financial position of iRobot Corporation and its subsidiaries at December 27, 2014 and December 28, 2013, and the results of their operations and their cash flows for each of the three years in the period ended December 27, 2014 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 27, 2014, based on criteria established in Internal Control - Integrated Framework(2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express opinions on these financial statements and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

February 13, 2015

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iROBOT CORPORATION

CONSOLIDATED BALANCE SHEETS

	December 27, 2014			December 28, 2013
	(In thousands)
ASSETS
Current assets:
Cash and cash equivalents	$	185,957		$	165,404
Short term investments	36,166			21,954
Accounts receivable, net of allowance of $67 at December 27, 2014 and December 28, 2013	71,056			39,348
Unbilled revenue	2,614			856
Inventory	47,857			46,107
Deferred tax assets	21,505			20,144
Other current assets	9,704			6,848
Total current assets	374,859			300,661
Property and equipment, net	31,297			23,661
Deferred tax assets	8,409			10,095
Goodwill	48,751			48,751
Intangible assets, net	19,146			22,668
Other assets	10,751			10,501
Total assets	$	493,213		$	416,337
LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	60,256		$	41,344
Accrued expenses	18,701			14,880
Accrued compensation	16,235			19,606
Deferred revenue and customer advances	3,849			5,085
Total current liabilities	99,041			80,915
Long term liabilities	3,736			4,733
Commitments and contingencies (Note 11):
Redeemable convertible preferred stock, 5,000,000 shares authorized and no shares issued or outstanding	—			—
Common stock, $0.01 par value, 100,000,000 shares authorized; and 29,644,602 and 28,935,253 shares issued and outstanding at December 27, 2014 and December 28, 2013, respectively	297			289
Additional paid-in capital	249,409			227,175
Retained earnings	140,881			103,078
Accumulated other comprehensive income	(151		)	147
Total stockholders’ equity	390,436			330,689
Total liabilities, redeemable convertible preferred stock and stockholders’ equity	$	493,213		$	416,337

See accompanying Notes to Consolidated Financial Statements

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iROBOT CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands, except per share amounts)
Revenue	$	556,846		$	487,401		$	436,244
Cost of revenue(1)	298,791			266,247			241,896
Gross margin	258,055			221,154			194,348
Operating expenses:
Research and development(1)	69,408			63,649			57,066
Selling and marketing(1)	86,091			71,529			66,412
General and administrative(1)	49,439			53,358			45,698
Total operating expenses	204,938			188,536			169,176
Operating income	53,117			32,618			25,172
Other income (expense), net	(708		)	(203		)	435
Income before income taxes	52,409			32,415			25,607
Income tax expense	14,606			4,774			8,310
Net income	$	37,803		$	27,641		$	17,297
Net income per share
Basic	$	1.28		$	0.97		$	0.63
Diluted	$	1.25		$	0.94		$	0.61
Number of shares used in per share calculations
Basic	29,485			28,495			27,577
Diluted	30,210			29,354			28,301

 __________________________

(1) Stock-based compensation recorded in fiscal 2014, 2013 and 2012 breaks down by expense classification as follows:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
	(In thousands)
Cost of revenue	$	865	$	700	$	889
Research and development	3,359		2,700		1,904
Selling and marketing	1,296		1,246		808
General and administrative	8,258		8,763		7,382

See accompanying Notes to Consolidated Financial Statements

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iROBOT CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Net income, as reported	$	37,803		$	27,641		$	17,297
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments, net of tax	(298		)	(52		)	48
Total comprehensive income	$	37,505		$	27,589		$	17,345

See accompanying Notes to Consolidated Financial Statements

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iROBOT CORPORATION

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

	Common Stock				Additional Paid-In Capital			Retained Earnings (Accumulated Deficit)		Accumulated Other Comprehensive Income (Loss)			Stockholders’ Equity
	Shares		Value
Balance at December 31, 2011	27,216,555		$	272	$	184,395		$	58,140	$	151		$	242,958
Issuance of common stock for exercise of stock options	390,956		4		4,322								4,326
Conversion of deferred compensation	823		—		—								—
Vesting of restricted stock units	204,053		2		(2		)						—
Tax benefit of excess stock based compensation deduction					902								902
Amortization of deferred compensation relating to stock options and restricted stock					10,983								10,983
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units	(30,728	)			(784		)						(784		)
Unrealized gain/(loss) on short term investment										48			48
Directors' deferred compensation					87								87
Net income								17,297					17,297
Balance at December 29, 2012	27,781,659		$	278	$	199,903		$	75,437	$	199		$	275,817
Issuance of common stock for exercise of stock options	840,951		8		13,621								13,629
Conversion of deferred compensation	9,780		—		—								—
Vesting of restricted stock units	348,141		3		(3		)						—
Tax benefit of excess stock based compensation deduction					1,413								1,413
Amortization of deferred compensation relating to stock options and restricted stock					13,409								13,409
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units	(45,278	)			(1,212		)						(1,212		)
Unrealized gain/(loss) on short term investment										(52		)	(52		)
Directors' deferred compensation					44								44
Net income								27,641					27,641
Balance at December 28, 2013	28,935,253		$	289	$	227,175		$	103,078	$	147		$	330,689
Issuance of common stock for exercise of stock options	486,252		5		8,938								8,943
Vesting of restricted stock units	318,367		3		(3		)						—
Tax benefit of excess stock based compensation deduction					2,776								2,776
Amortization of deferred compensation relating to stock options and restricted stock					13,778								13,778
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units	(39,297	)			(1,626		)						(1,626		)
Unrealized gain/(loss) on short term investment										(298		)	(298		)
Directors' deferred compensation					49								49
Stock repurchases	(55,973	)			(1,678		)						(1,678		)
Net income								37,803					37,803
Balance at December 27, 2014	29,644,602		$	297	$	249,409		$	140,881	$	(151	)	$	390,436

See accompanying Notes to Consolidated Financial Statements

45

iROBOT CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Cash flows from operating activities:
Net income	$	37,803		$	27,641		$	17,297
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,049			12,169			11,672
Loss on disposal of property and equipment	246			189			1,332
Goodwill and intangible assets impairment	—			1,988			—
Stock-based compensation	13,778			13,409			10,983
Deferred income taxes, net	3,101			(768		)	(3,763		)
Tax benefit of excess stock based compensation deductions	(3,051		)	(2,406		)	(1,445		)
Non-cash director deferred compensation	49			44			87
Changes in operating assets and liabilities — (use) source
Accounts receivable	(31,708		)	(9,935		)	15,560
Unbilled revenue	(1,758		)	340			1,166
Inventory	(2,387		)	(9,365		)	(807		)
Other assets	(2,856		)	1,980			(2,892		)
Accounts payable	16,249			(1,743		)	(8,684		)
Accrued expenses	3,695			1,255			(656		)
Accrued compensation	(3,371		)	7,751			(6,106		)
Deferred revenue	(1,236		)	(1,172		)	4,730
Long term liabilities	(997		)	515			(613		)
Net cash provided by operating activities	40,606			41,892			37,861
Cash flows from investing activities:
Additions of property and equipment	(13,774		)	(6,829		)	(6,770		)
Change in other assets	(250		)	(2,000		)	(6,000		)
Purchase of Evolution Robotics, Inc., net of cash received	—			—			(74,530		)
Purchase of investments	(31,219		)	(17,946		)	(5,086		)
Sales of investments	16,500			8,044			10,000
Proceeds from sale of assets	—			650			—
Net cash used in investing activities	(28,743		)	(18,081		)	(82,386		)
Cash flows from financing activities:
Income tax withholding payment associated with restricted stock vesting	(1,626		)	(1,212		)	(784		)
Proceeds from stock option exercises	8,943			13,629			4,326
Stock repurchases	(1,678		)	—			—
Tax benefit of excess stock based compensation deductions	3,051			2,406			1,445
Net cash provided by financing activities	8,690			14,823			4,987
Net increase (decrease) in cash and cash equivalents	20,553			38,634			(39,538		)
Cash and cash equivalents, at beginning of period	165,404			126,770			166,308
Cash and cash equivalents, at end of period	$	185,957		$	165,404		$	126,770
Supplemental disclosure of cash flow information
Cash paid for income taxes	$	15,508		$	7,235		$	11,663
Non-cash investing and financing activities:
Transfer of inventory to property and equipment	637			223			—
Additions of property and equipment included in accounts payable	3,235			572			—

See accompanying Notes to Consolidated Financial Statements

46

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Nature of the Business

iRobot Corporation (“iRobot” or the “Company”) develops robotics and artificial intelligence technologies and applies these technologies in producing and marketing robots. The majority of the Company’s revenue is generated from product sales and, to a lesser extent, government and commercial research and development contracts.

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying consolidated financial statements include those of iRobot and its subsidiaries, after elimination of all intercompany accounts and transactions. In addition, certain prior year amounts have been reclassified to conform with the current year presentation. iRobot has prepared the accompanying consolidated financial statements in conformity with accounting principles generally accepted in the United States of America.

Reorganization

In fiscal year 2012, the Company initiated a reorganization that resulted in, among other things, the centralization of all of the Company's engineering and operations activities. This reorganization was completed at the beginning of fiscal year 2013. In conjunction with this reorganization, the Company reviewed the financial statement classification of its costs and expenses. As a result of this review, the Company decided to classify certain expenses differently than had been classified and presented in prior periods to provide a more clear understanding of the Company's financial performance. As part of this review, the Company also evaluated the impact of the reorganization on its segment reporting and determined that certain modifications were necessary to present the segment information as now viewed by the Company's chief operating decision maker. Although the classification of certain expenses on the income statement changed in fiscal year 2013 as compared to prior periods, the Company recast the financial results of prior periods in a manner consistent with the fiscal year 2014 and 2013 presentation for comparability purposes. The reclassified amounts reflected in the consolidated statement of income for the year ended December 29, 2012 included herein conforms to the fiscal year 2014 and 2013 presentation. This reclassification of costs and expenses did not impact previously reported net income or earnings per share as the changes only impacted the categorization of costs within the consolidated statements of income for the periods in question. Consequently, the classification changes did not impact previously presented consolidated balance sheets, statements of cash flow or statements of stockholders' equity.

Use of Estimates

The preparation of these financial statements in conformity with accounting principles generally accepted in the United States requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosure of contingent assets and liabilities. On an ongoing basis, management evaluates these estimates and judgments, including those related to revenue recognition, sales returns, bad debts, warranty claims, inventory reserves, valuation of investments, valuation of goodwill and intangible assets, assumptions used in valuing stock-based compensation instruments and income taxes. The Company bases these estimates on historical and anticipated results, and trends and on various other assumptions that the Company believes are reasonable under the circumstances, including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results may differ from the Company’s estimates.

Fiscal Year-End

The Company operates and reports using a 52-53 week fiscal year ending on the Saturday closest to December 31. Accordingly, the Company’s fiscal quarters will end on the Saturday that falls closest to the last day of the third month of each quarter.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original or remaining maturity of three months or less at the time of purchase to be cash equivalents. The Company invests its excess cash primarily in money market funds or savings accounts of major financial institutions. Accordingly, its cash equivalents are subject to minimal credit and market risk. At December 27, 2014 and December 28, 2013, cash equivalents were comprised of money market funds totaling $109.8 million and $101.4 million, respectively. These cash equivalents are carried at cost, which approximates fair value.

47

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Short Term Investments

The Company’s investments are classified as available-for-sale and are recorded at fair value with any unrealized gain or loss recorded as an element of stockholders’ equity. The fair value of investments is determined based on quoted market prices at the reporting date for those instruments. As of December 27, 2014 and December 28, 2013, investments consisted of:

	December 27, 2014				December 28, 2013
	Cost		Fair Market Value		Cost		Fair Market Value
	(In thousands)
Corporate and government bonds	$	36,659	$	36,166	$	22,134	$	21,954
Total short term investments	$	36,659	$	36,166	$	22,134	$	21,954

As of December 27, 2014, the Company’s investments had maturity dates ranging from July 2015 to March 2018. The Company invests primarily in investment grade securities and limits the amount of investment in any single issuer.

Revenue Recognition

The Company derives its revenue from product sales and, to a lesser extent, government and commercial research and development contracts. The Company sells products directly to customers and indirectly through resellers and distributors. The Company recognizes revenue from sales of robots under the terms of the customer agreement upon transfer of title and risk of loss to the customer, net of estimated returns, provided that collection is determined to be reasonably assured and no significant obligations remain. Sales to domestic and Canadian resellers of home robots are typically subject to agreements allowing for limited rights of return, rebates and price protection. The Company also provides limited rights of returns for direct-to-consumer sales generated through its on-line stores. Accordingly, the Company reduces revenue for its estimates of liabilities for these rights of return, rebates and price protection at the time the related sale is recorded. The estimates for rights of return are directly based on specific terms and conditions included in the reseller agreements, historical returns experience and various other assumptions that the Company believes are reasonable under the circumstances. In the case of new product introductions, the estimates for returns applied to the new products are based upon the estimates for the most similar predecessor products until such time that the Company has enough actual returns experience for the new products, which is typically two holiday return cycles. At that time, the Company incorporates that data into the development of returns estimates for the new products. The Company updates its analysis of returns on a quarterly basis. If actual returns differ significantly from the Company's estimates, or if modifications to individual reseller agreements are entered into that impact their rights of returns, such differences could result in an adjustment to previously established reserves and could have a material impact, either favorably or unfavorably, on the Company's results of operations for the period in which the actual returns become known or the reseller agreement is modified. The Company’s international distributor agreements do not currently allow for product returns and, as a result, no reserve for returns is established for this group of customers. The estimates and reserve for rebates and price protection are based on specific programs, expected usage and historical experience. Actual results could differ from these estimates.

Under cost-plus-fixed-fee (CPFF) type contracts, the Company recognizes revenue based on costs incurred plus a pro rata portion of the total fixed fee. Costs incurred include labor and material that are directly associated with individual CPFF contracts plus indirect overhead and general and administrative type costs based upon billing rates submitted by the Company to the Defense Contract Management Agency (DCMA). Annually, the Company submits final indirect billing rates to DCMA based upon actual costs incurred throughout the year. In the situation where the Company’s final actual billing rates are greater than the provisional rates currently in effect, the Company records a cumulative revenue adjustment in the period in which the rate differential is collected from the customer. These final billing rates are subject to audit by the Defense Contract Audit Agency (DCAA), which can occur several years after the final billing rates are submitted and may result in material adjustments to revenue recognized based on estimated final billing rates. As of December 27, 2014, fiscal years 2012 through 2014 are open for audit by DCAA. In the situation where the Company’s anticipated actual billing rates will be lower than the provisional rates currently in effect, the Company records a cumulative revenue adjustment in the period in which the rate differential is identified. Revenue on firm fixed price (FFP) contracts is recognized using the percentage-of-completion method. For government product FFP contracts, revenue is recognized as the product is shipped or in accordance with the contract terms. Costs and estimated gross margins on contracts are recorded as revenue as work is performed based on the percentage that incurred costs compare to estimated total costs utilizing the most recent estimates of costs and funding. Changes in job performance, job conditions, and estimated profitability, including those arising from final contract settlements and government audits, may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Since many contracts extend over a long period of time, revisions in cost and funding estimates during the progress of work have the effect of adjusting earnings applicable to past performance in the current period. When the current contract estimate

48

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

indicates a loss, a provision is made for the total anticipated loss in the current period. Revenue earned in excess of billings, if any, is recorded as unbilled revenue. Billings in excess of revenue earned, if any, are recorded as deferred revenue.

Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that may not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience and the age of outstanding receivables.

Activity related to the allowance for doubtful accounts was as follows:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	67	$	111		$	87
Provision	—		—			37
Deduction(*)	—		(44		)	(13		)
Balance at end of period	$	67	$	67		$	111

_____________________  

(*) Deductions related to allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.

Inventory

Inventory is stated at the lower of cost or net realizable value with cost being determined using the first-in, first-out (FIFO) method. The Company maintains a reserve for inventory items to provide for an estimated amount of excess or obsolete inventory.

Activity related to the inventory reserve was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	5,280		$	6,608		$	2,568
Provision	1,045			1,571			5,101
Deduction(*)	(1,074		)	(2,899		)	(1,061		)
Balance at end of period	$	5,251		$	5,280		$	6,608

 ___________________________

(*) Deductions related to inventory reserve accounts represent amounts written off against the reserve.

Property and Equipment

Property and equipment are recorded at cost and consist primarily of computer equipment, leasehold improvements, business applications software and machinery. Depreciation is computed using the straight-line method over the estimated useful lives as follows:

	Estimated Useful Life
Computer and research equipment	3 years
Furniture	5
Machinery	2-5
Tooling	2-5
Business applications software	5-7
Capital leases and leasehold improvements	Lesser of economic benefit period or term of lease

49

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Expenditures for additions, renewals and betterments of plant and equipment are capitalized. Expenditures for repairs and maintenance are charged to expense as incurred. As assets are retired or sold, the related cost and accumulated depreciation are removed from the accounts and any resulting gain or loss is credited or charged to operations.

Long-Lived Assets, including Purchased Intangible Assets

The Company periodically evaluates the recoverability of long-lived assets, including other purchased intangible assets whenever events and changes in circumstances, such as reductions in demand or significant economic slowdowns in the industry, indicate that the carrying amount of an asset may not be fully recoverable. When indicators of impairment are present, the carrying values of the asset group are evaluated in relation to the future undiscounted cash flows of the underlying business. The net book value of the underlying asset is adjusted to fair value if the sum of the expected discounted cash flows is less than book value. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.

Goodwill

Goodwill is recorded as the difference, if any, between the aggregate consideration paid for an acquisition and the fair value of the net tangible and intangible assets acquired. The Company evaluates goodwill for impairment at the reporting unit level (operating segment or one level below an operating segment) annually or more frequently if the Company believes indicators of impairment exist. In accordance with the guidance, the Company is permitted to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the Company concludes that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then a two-step goodwill impairment test is performed.

The first step of the impairment test involves comparing the fair values of the applicable reporting units with their aggregate carrying values, including goodwill. If the carrying amount of a reporting unit exceeds the reporting unit's fair value, the Company performs the second step of the goodwill impairment test to determine the amount of impairment loss. The second step of the goodwill impairment test involves comparing the implied fair value of the affected reporting unit's goodwill with the carrying value of that goodwill. The Company completes the annual impairment evaluation during the fourth quarter each year.

Research and Development

Costs incurred in the research and development of the Company’s products, classified as cost of revenue and research and development, are expensed as incurred.

Internal Use Software

The Company capitalizes costs associated with the development and implementation of software for internal use. At December 27, 2014 and December 28, 2013, the Company had $8.2 million and $8.2 million, respectively, of costs related to enterprise-wide software included in fixed assets. Capitalized costs are being amortized over the assets’ estimated useful lives. The Company has recorded $0.8 million, $0.9 million and $1.0 million of amortization expense for the years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively.

Concentration of Credit Risk and Significant Customers

Financial instruments which potentially expose the Company to concentrations of credit risk consist of accounts receivable. Management believes its credit policies are prudent and reflect normal industry terms and business risk. At December 27, 2014, two customers accounted for a total of 32% of the Company's accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. At December 28, 2013, two customers accounted for a total of 37% of the Company’s accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, revenue from U.S. federal government orders, contracts and subcontracts, represented 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, the Company generated an aggregate of 29.8%, 33.2% and 30.6%, respectively, of total revenue from its home robots distributor in Japan and a network of affiliated European distributors of its home robots.

The Company maintains its cash in bank deposit accounts at high quality financial institutions. The individual balances, at times, may exceed federally insured limits.

50

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Stock-Based Compensation

The Company accounts for stock-based compensation through recognition of the fair value of the stock-based compensation as a charge against earnings. Stock-based compensation cost for stock options is estimated at the grant date based on each option’s fair-value as calculated by the Black-Scholes option-pricing model. Stock-based compensation cost for time-based restricted stock units and performance-based restricted stock units is measured based on the closing fair market value of the Company's common stock on the date of grant. For performance-based restricted stock units, the compensation costs will be subsequently adjusted for assumptions of achievement during the period in which the assumption of achievement changes, as applicable. The Company recognizes stock-based compensation cost as expense ratably on a straight-line basis over the requisite service period, net of estimated forfeitures.

Advertising Expense

The Company expenses advertising costs as they are incurred. During the years ended December 27, 2014, December 28, 2013 and December 29, 2012 advertising expense totaled $46.1 million, $38.2 million and $34.9 million, respectively.

Net Income Per Share

The following table presents the calculation of both basic and diluted net income per share:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
Net income	$	37,803	$	27,641	$	17,297
Weighted-average shares outstanding	29,485		28,495		27,577
Dilutive effect of employee stock options and restricted shares	725		859		724
Diluted weighted average shares outstanding	30,210		29,354		28,301
Basic income per share	$	1.28	$	0.97	$	0.63
Diluted income per share	$	1.25	$	0.94	$	0.61

Potentially dilutive securities representing approximately 0.2 million, 0.7 million and 0.8 million shares of common stock for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively, were excluded from the computation of diluted earnings per share for these periods because their effect would have been antidilutive.

Income Taxes

The Company is subject to taxation in the United States and various states and foreign jurisdictions. The statute of limitations for examinations by federal and state tax authorities is closed for fiscal years prior to 2011. Federal and state carryforward attributes that were generated prior to fiscal year 2011 may still be adjusted upon examination by the Internal Revenue Service (IRS) or state tax authorities if they either have been or will be used in a period for which the statute of limitations is still open.

Deferred taxes are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect in the years in which the differences are expected to reverse. Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

The Company monitors the realization of its deferred tax assets based on changes in circumstances, for example, recurring periods of income for tax purposes following historical periods of cumulative losses, generation of tax credits compared to future utilization of credits, or changes in tax laws or regulations. The Company's income tax provision and its assessment of the ability to realize its deferred tax assets involve significant judgments and estimates. The Company is currently generating state research credits that exceed the amount being utilized. As a result of this trend, a valuation allowance may be needed in the future related to these state tax credits.

As of December 28, 2013, the Company maintained a valuation allowance of $2.1 million related to certain state tax attributes from the Evolution Robotics, Inc. acquisition. During the year ended December 27, 2014, this valuation allowance was released when the realization of these state tax attributes became more likely than not.

Comprehensive Income

Accumulated other comprehensive income includes unrealized gains and losses on certain investments. The differences between net income and comprehensive income were related to unrealized gains (losses) on investments, net of tax.

51

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Fair Value Measurements

The authoritative guidance for fair value establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

Financial Assets

The Company’s financial assets measured at fair value on a recurring basis at December 27, 2014, were as follows:

	Fair Value Measurements as of
	December 27, 2014
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	109,843	$	—	$	—
Corporate and government bonds	—		36,166		—
Total assets measured at fair value	$	109,843	$	36,166	$	—

The Company’s financial assets measured at fair value on a recurring basis at December 28, 2013, were as follows:

	Fair Value Measurements as of
	December 28, 2013
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	101,441	$	—	$	—
Corporate and government bonds	—		21,954		—
Total assets measured at fair value	$	101,441	$	21,954	$	—

In each table above, the bond investments are valued based on observable market values as of the Company’s reporting date and are included in Level 2. The bond investments are recorded at fair value and marked-to-market at the end of each reporting period and realized and unrealized gains and losses are included in comprehensive income for that period. The fair value of the Company’s bond investments are included in short term investments in its consolidated balance sheets.

Non-financial Assets

The Company's non-financial assets, which include goodwill, intangible assets, and property and equipment are not required to be measured at fair value on a recurring basis. However, the Company evaluates the non-financial assets for impairment if a trigger event occurs, or when an annual impairment test is performed. If the asset is determined to be impaired, the asset is required to be recorded at fair value.

Recent Accounting Pronouncements

In August 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-15, “Presentation of Financial Statements - Going Concern.” ASU No. 2014-15 requires management of public and private companies to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management will also be required to evaluate and disclose whether its plans alleviate that doubt. The new standard is effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016. The Company does not believe that the impact of this amendment will be material to the Company’s consolidated financial statements.

In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” ASU No. 2014-12 requires a

52

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

reporting entity to treat a performance target that affects vesting and that could be achieved after the requisite service period as a performance condition. It is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. The Company is currently assessing the potential impact of ASU No. 2014-12 on its consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently assessing the potential impact of ASU No. 2014-09 on its consolidated financial statements.

On April 10, 2014, the FASB issued ASU No. 2014-08 “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU No. 2014-08 changes the criteria for reporting discontinued operations and modifies related disclosure requirements. The new guidance is effective on a prospective basis for fiscal years beginning after December 15, 2014, and interim periods within annual periods beginning on or after December 15, 2015. Early adoption is permitted for new disposals (or new classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The Company is currently assessing the future impact of ASU No. 2014-08 on its consolidated financial statements.

In July 2013, the FASB issued ASU 2013-11 “Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Exists”, related to the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists.  This guidance clarifies prior guidance and eliminates diversity in practice on the presentation of unrecognized tax benefits when certain situations exist at the reporting date.  This guidance is effective for annual reporting periods beginning on or after December 15, 2013 and subsequent interim periods.  The impact of this amendment on the Company's consolidated financial statements was not material.

From time to time, new accounting pronouncements are issued by FASB that are adopted by the Company as of the specified effective date. Unless otherwise discussed, the Company believes that the impact of recently issued standards, which are not yet effective, will not have a material impact on its consolidated financial statements upon adoption.

3. Inventory

Inventory consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Raw materials	$	9,455	$	8,520
Work in process	—		—
Finished goods	38,402		37,587
	$	47,857	$	46,107

4. Property and Equipment

Property and equipment consists of the following at:

53

	December 27, 2014		December 28, 2013
	(In thousands)
Computer and equipment	$	15,173	$	13,715
Furniture	2,297		1,845
Machinery	5,307		3,705
Tooling	18,614		12,228
Leasehold improvements	20,833		15,983
Business applications software	8,214		8,162
	70,438		55,638
Less: accumulated depreciation	39,141		31,977
	$	31,297	$	23,661

Depreciation expense for the years ended December 27, 2014, December 28, 2013 and December 29, 2012 was $9.2 million, $8.1 million, and $9.9 million, respectively.

5. Other Assets

At December 27, 2014, other assets consisted of three investments totaling $10.8 million. At December 28, 2013, other assets consisted of two investments totaling $10.5 million. These investments are accounted for at cost. The Company regularly monitors these investments to determine if facts and circumstances have changed in a manner that would require a change in accounting methodology. Additionally, the Company regularly evaluates whether or not these investments have been impaired by considering such factors as economic environment, market conditions, operational performance and other specific factors relating to the businesses underlying the investments. If any such impairment is identified, a reduction in the carrying value of the investments would be recorded at that time. Since the Company believes the fair value of its investments is greater than the carrying value of its investments, it has not impaired these investments.

6. Accrued Expenses

Accrued expenses consist of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Accrued warranty	$	7,769	$	6,497
Accrued direct fulfillment costs	1,346		1,362
Accrued sales tax	867		831
Accrued customer deposits	702		103
Accrued rent	701		726
Accrued sales commissions	531		539
Accrued contractors	217		509
Accrued other	6,568		4,313
	$	18,701	$	14,880

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Accrued compensation consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Accrued bonus	$	8,455	$	13,002
Accrued other compensation	7,780		6,604
	$	16,235	$	19,606

7. Revolving Line of Credit

The Company has an unsecured revolving credit facility with Bank of America, N.A., which is available to fund working capital and other corporate purposes. As of December 27, 2014, the total amount available for borrowing under its credit facility was $75.0 million and the full amount was available for borrowing. The interest on loans under the credit facility will accrue, at the Company's election, at either (1) LIBOR plus a margin, currently equal to 1.0%, based on the Company's ratio of indebtedness to Adjusted EBITDA (the "Eurodollar Rate"), or (2) the lender's base rate. The lender's base rate is equal to the highest of (1) the federal funds rate plus 0.5%, (2) the lender's prime rate and (3) the Eurodollar Rate plus 1.0%. The credit facility will terminate and all amounts outstanding thereunder will be due and payable in full on December 20, 2018.

As of December 27, 2014, the Company had no borrowings under its revolving credit facility. This credit facility contains customary terms and conditions for credit facilities of this type, including restrictions on the Company's ability to incur or guaranty additional indebtedness, create liens, enter into transactions with affiliates, make loans or investments, sell assets, pay dividends or make distributions on, or repurchase, the Company's stock, and consolidate or merge with other entities.

In addition, the Company is required to meet certain financial covenants customary with this type of agreement, including maintaining a minimum ratio of indebtedness to Adjusted EBITDA and a minimum specified interest coverage ratio.

This credit facility contains customary events of default, including for payment defaults, breaches of representations, breaches of affirmative or negative covenants, cross defaults to other material indebtedness, bankruptcy and failure to discharge certain judgments. If a default occurs and is not cured within any applicable cure period or is not waived, the Company's obligations under the credit facility may be accelerated.

As of December 27, 2014, the Company was in compliance with all covenants under its credit facility.

8. Common Stock

Common stockholders are entitled to one vote for each share held and to receive dividends if and when declared by the Board of Directors and subject to and qualified by the rights of holders of the preferred stock. Upon dissolution or liquidation of the Company, holders of common stock will be entitled to receive all available assets subject to any preferential rights of any then outstanding preferred stock.

On April 2, 2014, the Company announced a stock repurchase program. Under the program, the Company may purchase up to $50 million of its common stock from May 1, 2014 to April 30, 2015. Through December 27, 2014, the Company has repurchased 55,973 shares totaling $1.7 million in the open market under this stock repurchase plan.

9. Stock Option Plans and Stock-Based Compensation

The Company has options outstanding under three stock incentive plans: the 2004 Stock Option and Incentive Plan (the “2004 Plan”), the 2005 Stock Option and Incentive Plan (the "2005 Plan") and the Evolution Robotics, Inc. 2007 Stock Plan (the "2007 Plan" and together with the 2004 Plan and the 2005 Plan, the “Plans”). All options that remained outstanding under the 1994 Stock Option Plan as of December 28, 2013 were exercised during fiscal 2014. The 2005 Plan is the only one of the four plans under which new awards may currently be granted. Under the 2005 Plan, which became effective October 10, 2005, 1,583,682 shares were initially reserved for issuance in the form of incentive stock options, non-qualified stock options, stock appreciation rights, deferred stock awards and restricted stock awards. Additionally, the 2005 Plan provides that the number of shares reserved and available for issuance under the plan will automatically increase each January 1, beginning in 2007, by 4.5% of the outstanding number of shares of common stock on the immediately preceding December 31. Stock options returned to the Plans, with the exception of the 2007 Plan, as a result of their expiration, cancellation or termination are automatically made available for issuance under the 2005 Plan. Eligibility for incentive stock options is limited to those individuals whose

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employment status would qualify them for the tax treatment associated with incentive stock options in accordance with the Internal Revenue Code of 1986, as amended. As of December 27, 2014, there were 4,762,446 shares available for future grant under the 2005 Plan.

Options granted under the Plans are subject to terms and conditions as determined by the compensation committee of the board of directors, including vesting periods. Options granted under the Plans are exercisable in full at any time subsequent to vesting, generally vest over periods from one to five years , and expire seven or ten years from the date of grant or, if earlier, 60 or 90 days from employee termination. The exercise price of incentive stock options is typically equal to the closing price on the NASDAQ Global Market on the date of grant. The exercise price of nonstatutory options may be set at a price other than the fair market value of the common stock.

In conjunction with the acquisition of Evolution Robotics, Inc. on October 1, 2012, each outstanding and unvested incentive stock option held by Evolution employees as of the acquisition date was automatically converted into stock options of the Company under the same terms and conditions as were applicable to the original Evolution grants. The number of replacement options granted and the associated exercise prices were determined utilizing a conversion ratio as defined in the merger agreement. There were 114,248 incentive stock options issued by the Company as a result of this automatic conversion with exercise prices ranging from $2.55 to $4.81. All of these options were granted from the 2007 Plan, which was assumed by the Company as a result of the acquisition.

The Company recognized $4.1 million of stock-based compensation expense during the fiscal year ended December 27, 2014 for stock options. The unamortized fair value as of December 27, 2014 associated with these grants was $6.6 million with a weighted-average remaining recognition period of 2.47 years. The Company expects to recognize associated stock-based compensation expense of $2.9 million, $2.2 million, $1.1 million and $0.4 million in 2015, 2016, 2017 and 2018, respectively.

The fair value of each option grant for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 was computed on the grant date using the Black-Scholes option-pricing model with the following assumptions:

	Fiscal Year Ended
	December 27, 2014	December 28, 2013	December 29, 2012
Risk-free interest rate	1.65% — 1.69%	0.90% — 1.77%	0.63% — 0.90%
Expected dividend yield	—	—	—
Expected life	3.91 — 4.00 years	4.03 — 4.21 years	4.12 — 4.18 years
Expected volatility	52.8% — 56.0%	54.0% — 58.0%	63.0% — 64.0%

The risk-free interest rate is derived from the average U.S. Treasury constant maturity rate, which approximates the rate in effect at the time of grant, commensurate with the expected life of the instrument. The dividend yield is zero based upon the fact the Company has never paid and has no present intention to pay cash dividends. The Company utilizes company specific historical data for purposes of establishing expected volatility and expected term.

Based upon the above assumptions, the weighted average fair value of each stock option granted for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 was $15.87, $11.17 and $13.23, respectively.

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The table below summarizes stock option plan activity:

	Number of Shares		Weighted Average Exercise Price		Weighted  Average Remaining Contractual Term	Aggregate Intrinsic Value(1)
Outstanding at December 31, 2011	2,561,292		$	17.17
Granted	547,948		19.70
Exercised	(390,956	)	11.07
Canceled	(214,617	)	21.91
Outstanding at December 29, 2012	2,503,667		$	18.27
Granted	293,325		24.60
Exercised	(840,951	)	16.21
Canceled	(185,666	)	22.16
Outstanding at December 28, 2013	1,770,375		$	19.89
Granted	233,181		37.10
Exercised	(486,252	)	18.39
Canceled	(43,984	)	27.17
Outstanding at December 27, 2014	1,473,320		$	22.89	3.87 years	$18.2 million
Vested and expected to vest at December 27, 2014	1,419,559		$	22.61	3.79 years	$17.8 million
Exercisable as of December 27, 2014	917,340		$	19.32	2.82 years	$14.2 million
Weighted average fair value of options granted during the fiscal year ended December 27, 2014			$	15.87
Options available for future grant at December 27, 2014	4,762,446

 _________________________

(1) The aggregate intrinsic value on the table was calculated based upon the positive difference between the closing market value of the Company’s stock on December 27, 2014 of $34.81 and the exercise price of the underlying option.

During fiscal years 2014, 2013, and 2012, the total intrinsic value of stock options exercised was $10.5 million, $12.1 million and $6.2 million, respectively. No amounts relating to stock-based compensation have been capitalized.

The following table summarizes information about stock options outstanding at December 27, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted Average Remaining Contractual Life	Weighted  Average Exercise Price		Number Exercisable	Weighted Average Exercise Price
$  3.54 - $ 7.76	156,380	3.68 years	$	6.08	134,520	$	6.29
8.10 - 14.13	100,551	1.10	13.36		100,551	13.36
14.52 - 14.52	164,442	2.26	14.52		164,442	14.52
14.54 - 22.20	182,584	3.63	19.17		113,901	19.54
22.86 - 22.86	194,508	5.09	22.86		79,614	22.86
24.00 - 25.99	199,546	2.66	24.75		153,876	24.46
26.59 - 33.48	264,971	4.30	31.19		156,756	31.05
33.72 - 35.96	121,445	6.10	35.01		13,680	34.34
37.08 - 37.08	34,500	6.84	37.08		—	—
43.35 -  43.35	54,393	6.19	43.35		—	—
$ 3.54 -  $43.35	1,473,320	3.87 years	$	22.89	917,340	$	19.32

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

During the fiscal year ended December 27, 2014, the Company recognized $9.7 million of stock-based compensation expense associated with restricted stock units. As of December 27, 2014, December 28, 2013 and December 29, 2012, the unamortized fair value of all restricted stock units was $20.1 million, $17.5 million and $17.9 million, respectively. The Company expects to recognize associated stock-based compensation expense of $8.3 million, $6.4 million, $4.0 million and $1.4 million in 2015, 2016, 2017 and 2018, respectively.

The table below summarizes activity relating to restricted stock units:

	Number of Shares Underlying Restricted Stock		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011	607,505		$	22.77
Granted	685,529		24.62
Vested	(204,053	)	21.24
Forfeited	(147,951	)	25.07
Outstanding at December 29, 2012	941,030		$	24.09
Granted	521,056		25.87
Vested	(348,141	)	22.57
Forfeited	(186,291	)	24.91
Outstanding at December 28, 2013	927,654		$	25.50
Granted	372,159		38.25
Vested	(318,367	)	25.38
Forfeited	(71,591	)	28.42
Outstanding at December 27, 2014	909,855		$	30.53

10. Income Taxes

The components of income tax expense were as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Current
Federal	$	15,128		$	6,363		$	12,540
State	129			1,124			473
Foreign	91			41			(8		)
Total current tax provision	15,348			7,528			13,005
Deferred
Federal	1,268			(2,026		)	(4,003		)
State	(2,010		)	(728		)	(692		)
Total deferred tax provision	(742		)	(2,754		)	(4,695		)
Total income tax provision	$	14,606		$	4,774		$	8,310

In certain jurisdictions, an immaterial provision has been made for deferred taxes on undistributed earnings of non-U.S. subsidiaries that the Company expects to distribute in 2015. In other jurisdictions, for the remaining undistributed earnings of non-U.S. subsidiaries, no provision has been made for deferred taxes as these earnings have been indefinitely reinvested. As of December 27, 2014, a deferred tax liability has not been established for approximately $0.6 million of cumulative undistributed earnings of non-U.S. subsidiaries, as the Company plans to keep these amounts permanently reinvested overseas. The amount of any unrecognized deferred tax liability on these undistributed earnings would be immaterial.

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The components of net deferred tax assets were as follows:

	December 27, 2014		December 28, 2013
	(In thousands)
Net deferred tax assets
Current deferred tax assets
Reserves and accruals	$	18,568	$	18,554
Stock-based compensation	767		556
Net operating loss carryforwards	2,470		2,470
Foreign tax credits	148		105
Valuation allowance	—		(1,100		)
Total current deferred tax assets	21,953		20,585
Non-current deferred tax assets
Reserves and accruals	586		715
Tax credits	5,927		5,737
Property and equipment	178		1,308
Stock-based compensation	5,011		4,957
Net operating loss carryforwards	3,879		6,587
Valuation allowance	—		(990		)
Total non-current deferred tax assets	15,581		18,314
Current deferred tax liabilities
Prepaids	448		441
Total current deferred tax liabilities	448		441
Non-current deferred tax liabilities
Intangible assets	7,172		8,219
Total non-current deferred tax liabilities	7,172		8,219
Total net deferred tax assets	$	29,914	$	30,239

As of December 28, 2013, the Company maintained a valuation allowance of $2.1 million related to certain state tax attributes from the Evolution Robotics, Inc. acquisition. During the year ended December 27, 2014, this valuation allowance was released when realization of these state tax attributes became more likely than not.

The table below summarizes activity relating to the valuation allowance:

Fiscal Year Ended	Balance at beginning  of period		Additions Charged to Costs and Expenses	Additions Charged to Goodwill	Deductions	Balance at End of Period
	(In thousands)
December 29, 2012	$	—	—	2,691	—	$	2,691
December 28, 2013	$	2,691	—	—	601	$	2,090
December 27, 2014	$	2,090	—	—	2,090	$	—

The net deferred tax assets after valuation allowance as of December 27, 2014 and December 28, 2013 were $29.9 million and $30.2 million, respectively.

The Company has federal and state net operating loss carryforwards of $34.5 million and $45.0 million as of December 27, 2014 and December 28, 2013, respectively, which expire from 2028 to 2032. The Company has federal and state research and development credit carryforwards of $9.1 million and $8.9 million as of December 27, 2014 and December 28, 2013, respectively, which expire from 2022 to 2029. The Company has state investment tax credit carryforwards of $0.7 million and $0.6 million as of December 27, 2014 and December 28, 2013, respectively, which expire from 2015 to 2024. Under the Internal Revenue Code, certain substantial changes in the Company’s ownership could result in an annual limitation on the amount of these tax carryforwards which can be utilized in future years. As of

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December 27, 2014, the Company has $34.5 million of net operating loss carryforwards and $2.2 million of federal and state research and development credits related to the acquisition of Evolution Robotics that are limited by Section 382 and Section 383, respectively, of the Internal Revenue Code. However, these limitations are not expected to cause any of these net operating loss carryforwards or federal and state research and development credits to expire unused.

The reconciliation of the expected tax (benefit) expense (computed by applying the federal statutory rate to income before income taxes) to actual tax expense was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Expected federal income tax	$	18,344		$	11,345		$	8,962
Miscellaneous permanent items	691			405			338
State taxes (net of federal benefit)	1,058			867			497
Federal and state credits	(1,487		)	(3,909		)	(418		)
Change in valuation allowance	(2,090		)	—			—
Domestic production activities deduction	(1,562		)	(1,168		)	(1,100		)
Settlement of uncertain tax positions	(176		)	(2,696		)	—
Other	(172		)	(70		)	31
	$	14,606		$	4,774		$	8,310

A summary of the Company’s adjustments to its gross unrecognized tax benefits, inclusive of interest, in the current year is as follows:

	Fiscal Year Ended
	December 27, 2014
Balance at beginning of period	$	2,618
Increase for tax positions related to the current year	252
Decrease for tax positions related to prior years	(108		)
Decreases for settlements with applicable taxing authorities	(271		)
Decreases for lapses of statute of limitations	—
Balance at end of period	$	2,491

The Company accrues interest and, if applicable, penalties for any uncertain tax positions. Interest and penalties are classified as a component of income tax expense. As of December 27, 2014, December 28, 2013 and December 29, 2012, there were no material accrued interest or penalties. Over the next twelve months it is reasonably possible that the Company may recognize approximately $0.2 million of previously net unrecognized tax benefits related to U.S. federal, state and foreign tax audits and expiration of the statute of limitations. If all of our unrecognized tax benefits as of December 27, 2014 were to become recognizable in the future, we would record a $1.9 million benefit to the income tax provision, reflective of federal benefit on state items.

Included in the Company’s state tax credit carryforwards are unrecognized tax benefits related to stock-based compensation beginning from January 1, 2006 of $0.5 million and $0.5 million as of December 27, 2014 and December 28, 2013, respectively. Included in the Company's state net operating loss carryforwards are unrecognized tax benefits related to stock-based compensation beginning from January 1, 2006 of $0.7 million and $0 as of December 27, 2014 and December 28, 2013, respectively. These unrecognized tax benefits will be credited to additional paid-in capital when they reduce income taxes payable. Therefore, these amounts were not included in the Company’s gross or net deferred tax assets at December 27, 2014 and December 28, 2013.

The Company follows the with and without approach for direct and indirect effects of windfall tax deductions.

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11. Commitments and Contingencies

Legal

From time to time and in the ordinary course of business, the Company is subject to various claims, charges and litigation. The outcome of litigation cannot be predicted with certainty and some lawsuits, claims or proceedings may be disposed of unfavorably to us, which could materially affect the Company's financial condition or results of operations.

Lease Obligations

The Company leases its facilities. Rental expense under operating leases for fiscal 2014, 2013 and 2012 amounted to $4.8 million, $5.3 million, and $4.4 million, respectively. Future minimum rental payments under operating leases were as follows as of December 27, 2014:

	Operating Leases
2015	$	3,460
2016	2,670
2017	2,383
2018	2,383
2019	2,383
Thereafter	794
Total minimum lease payments	$	14,073

Outstanding Purchase Orders

At December 27, 2014, we had outstanding purchase orders aggregating approximately $78.1 million. The purchase orders, the majority of which are with our contract manufacturers for the purchase of inventory in the normal course of business, are for manufacturing and non-manufacturing related goods and services, and are generally cancelable without penalty.  In circumstances where we determine that we have financial exposure associated with any of these commitments, we record a liability in the period in which that exposure is identified.

Guarantees and Indemnification Obligations

The Company enters into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company indemnifies and agrees to reimburse the indemnified party for losses incurred by the indemnified party, generally the Company’s customers, in connection with any patent, copyright, trade secret or other proprietary right infringement claim by any third party. The term of these indemnification agreements is generally perpetual any time after execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited. The Company has never incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the estimated fair value of these agreements is minimal. Accordingly, the Company has no liabilities recorded for these agreements as of December 27, 2014 and December 28, 2013, respectively.

Government Contract Contingencies

Several of the Company’s prime contracts with the U.S. federal government do not contain a limitation of liability provision, creating a risk of responsibility for direct and consequential damages. Several subcontracts with prime contractors hold the prime contractor harmless against liability that stems from our work and do not contain a limitation of liability. These provisions could cause substantial liability for the Company. In addition, the Company is subject to audits by the U.S. federal government as part of routine audits of government contracts. As part of an audit, these agencies may review the Company’s performance on contracts, cost structures and compliance with applicable laws, regulations and standards. If any of its costs are found to be allocated improperly to a specific contract, the costs may not be reimbursed and any costs already reimbursed for such contract may have to be refunded. Accordingly, an audit could result in a material adjustment to our revenue and results of operations. Annually, the Company submits final indirect billing rates to DCMA based upon actual costs incurred throughout the year. These final billing rates are subject to audit by DCAA. As of December 27, 2014, fiscal years 2012 through 2014 are open for audit by DCAA.

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Warranty

The Company provides warranties on most products and has established a reserve for warranty based on estimated warranty costs. The reserve is included as part of accrued expenses (Note 6) in the accompanying consolidated balance sheets.

Activity related to the warranty accrual was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	6,497		$	6,057		$	10,306
Provision (*)	6,410			1,744			(1,682		)
Warranty usage(**)	(5,138		)	(1,304		)	(2,567		)
Balance at end of period	$	7,769		$	6,497		$	6,057

 __________________________________

(*) During 2012, the Company recorded favorable adjustments relating to reductions in its international warranty accrual for our home robots business related to our sustained improvements in product quality, resulting in a net credit for its 2012 warranty provision.

(**) Warranty usage includes costs incurred for warranty obligations.

Sales Taxes

The Company collects and remits sales tax in jurisdictions in which it has a physical presence or it believes nexus exists, which therefore obligates the Company to collect and remit sales tax. The Company continually evaluates whether it has established a nexus in new jurisdictions with respect to sales tax. The Company has recorded a liability for potential exposure in several states where there is uncertainty about the point in time at which the Company established a sufficient business connection to create nexus. The Company continues to analyze possible sales tax exposure, but does not currently believe that any individual claim or aggregate claims that might arise will ultimately have a material effect on its consolidated results of operations, financial position or cash flows.

12. Employee Benefits

The Company sponsors a retirement plan under Section 401(k) of the Internal Revenue Code (the “Retirement Plan”). All Company employees, with the exception of temporary, contract and international employees are eligible to participate in the Retirement Plan after satisfying age and length of service requirements prescribed by the plan. Under the Retirement Plan, employees may make tax-deferred contributions, and the Company, at its sole discretion, and subject to the limits prescribed by the IRS, may make either a nonelective contribution on behalf of all eligible employees or a matching contribution on behalf of all plan participants.

The Company elected to make a matching contribution of approximately $1.7 million, $1.5 million and $1.7 million for the plan years ended December 27, 2014, December 28, 2013 and December 29, 2012 (“Plan-Year 2014,” “Plan-Year 2013” and “Plan-Year 2012”), respectively. The employer contribution represents a matching contribution at a rate of 50% of each employee’s first six percent contribution. Accordingly, each employee participating during Plan-Year 2014, Plan-Year 2013 and Plan-Year 2012 is entitled up to a maximum of three percent of his or her eligible annual payroll. The employer matching contribution for Plan-Year 2014 is included in accrued compensation in the accompanying consolidated balance sheet.

13. Acquisition of Evolution Robotics, Inc.

On October 1, 2012, the Company acquired 100% of the equity of Evolution Robotics, Inc. (Evolution) for $74.8 million in cash, including the effect of working capital adjustments and cash received, with $8.88 million of the purchase price placed into an escrow account to settle certain claims for indemnification for breaches or inaccuracies in Evolution’s representations and warranties, covenants and agreements. As of December 27, 2014, all indemnification claims and escrow balances have been released. Evolution was the developer of Mint and Mint Plus automatic floor cleaning robots, based in Pasadena, California, and is included in the Company's home robots business unit.

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Pro Forma Disclosures (Unaudited)

The following unaudited pro forma consolidated results of operations for fiscal 2012 assume that the acquisition of Evolution occurred as of January 2, 2011.

	Fiscal Year Ended
	December 29, 2012
	(In thousands)
Revenue	$	445,469
Net Income	8,723

These pro forma amounts do not purport to be indicative of the results that would have actually been obtained if the acquisitions had occurred at the beginning of the periods presented or that may be obtained in the future.

14. Goodwill and other intangible assets

The carrying amount of the goodwill at December 27, 2014 is $48.8 million. $41.0 million resulted from the acquisition of Evolution Robotics, Inc. in October 2012 and was assigned to the home robots reporting unit. $7.7 million (net of a subsequent write-down of $0.2 million) resulted from the acquisition of Nekton Research, LLC completed in September 2008 and was assigned to the defense and security reporting unit. In conjunction with the reorganization completed as of the beginning of the fiscal year 2013, the defense and security reporting unit was divided into two reporting units: the defense and security reporting unit and the research reporting unit. As a result, the goodwill of $7.9 million was reassigned utilizing a relative fair value allocation approach. $7.7 million and $0.2 million were reassigned to the defense and security and research reporting units, respectively.

During the second quarter of 2013, the Company decided to refocus its funded research activities. The Company considered this decision to be an impairment indicator, requiring an interim impairment test within the research reporting unit. The Company performed an impairment assessment using the income approach, and determined that goodwill was impaired. The Company recorded an impairment loss of $0.2 million within general and administrative expenses during the fiscal year ended December 28, 2013.

In the fourth quarter of 2014, the Company completed its annual goodwill impairment test. The first step of the two-step impairment test, which involves comparing the fair values of the applicable reporting units with their aggregate carrying values, including goodwill, was completed, and the Company did not identify any additional goodwill impairment.

Other intangible assets include the value assigned to completed technology, research contracts, and trade names. The estimated useful lives for all of these intangible assets are two to ten years. The intangible assets are being amortized on a straight-line basis, which is consistent with the pattern that the estimated economic benefits of the intangible assets are expected to be utilized.

Intangible assets at December 27, 2014 and December 28, 2013 consisted of the following:

	December 27, 2014								December 28, 2013
	Cost		Accumulated Amortization		Impairment Loss		Net		Cost		Accumulated Amortization		Impairment Loss		Net
	(In thousands)
Completed technology	$	30,600	$	9,691	$	1,788	$	19,121	$	30,600	$	6,202	$	1,788	$	22,610
Research contracts	100		100		—		—		100		100		—		—
Tradename	800		775		—		25		800		742		—		58
Total	$	31,500	$	10,566	$	1,788	$	19,146	$	31,500	$	7,044	$	1,788	$	22,668

As part of the Company's decision during 2013 to refocus its funded research activities, the Company decided to no longer pursue certain research contracts in which completed technology acquired as part of the acquisition of Nekton Research, LLC was utilized. As a result, the Company performed an impairment assessment of the associated intangible asset using the income approach, and recorded an impairment loss of $1.8 million within general and administrative expenses during the fiscal year ended December 28, 2013.

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iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Amortization expense related to acquired intangible assets was $3.5 million, $3.8 million, and $1.2 million for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively. The estimated future amortization expense related to current intangible assets in each of the five succeeding fiscal years is expected to be as follows:

	(In thousands)
2015	$	3,482
2016	3,457
2017	3,457
2018	3,457
2019	2,818
Total	$	16,671

15. Restructuring charges

In 2013 and 2012, the Company incurred restructuring charges of $3.3 million, and $3.7 million, respectively. The restructuring charges incurred in 2013 primarily related to a $1.8 million write-down of an intangible asset, costs associated with the closing of its San Luis Obispo, California office and severance-related costs. The restructuring charges incurred in 2012 primarily consisted of cost reductions in its defense and security business unit, which resulted in workforce reductions and the write-off of certain inventory and fixed assets.

The activity for the restructuring programs is presented below:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	675		$	197		$	—
Charges	—			3,296			3,679
Utilization	(675		)	(2,818		)	(3,482		)
Balance at end of period	$	—		$	675		$	197

16. Industry Segment, Geographic Information and Significant Customers

The Company operates in two reportable segments, the home robots business unit and the defense and security robots business unit. The nature of products and types of customers for the two segments vary significantly. As such, the segments are managed separately.

Home Robots

The Company’s home robots business unit offers products to consumers through a network of retail businesses throughout the United States, to various countries through international distributors and retailers, and through the Company’s on-line store. The Company’s home robots business unit includes mobile robots used in the maintenance of households.

Defense and Security Robots

The Company’s defense and security robots business unit offers products to the U.S. Department of Defense through a small U.S. government-focused sales force, and to other North American and international entities through small domestic and international sales teams, as well as through North American and international distributors. The Company’s defense and security robots are used to increase warfighters', law enforcement, security forces and first responders' safety and productivity.

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iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Other

The Company’s other revenue and cost of revenue result from other smaller business units that do not meet the criteria of a reportable segment, as well as certain operational costs included in cost of revenue.

The table below presents segment information about revenue, cost of revenue, gross margin and income before income taxes:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Revenue:
Home Robots	$	507,414		$	427,853		$	356,805
Defense & Security Robots	45,502			50,003			70,948
Other	3,930			9,545			8,491
Total revenue	556,846			487,401			436,244
Cost of revenue:
Home Robots	251,095			217,011			174,756
Defense & Security Robots	24,409			24,975			40,468
Other	23,287			24,261			26,672
Total cost of revenue	298,791			266,247			241,896
Gross margin:
Home Robots	256,319			210,842			182,049
Defense & Security Robots	21,093			25,028			30,480
Other	(19,357		)	(14,716		)	(18,181		)
Total gross margin	258,055			221,154			194,348
Research and development	69,408			63,649			57,066
Selling and marketing	86,091			71,529			66,412
General and administrative	49,439			53,358			45,698
Other income (expense), net	(708		)	(203		)	435
Income before income taxes	$	52,409		$	32,415		$	25,607

As of December 27, 2014, goodwill of $41.0 million and purchased intangible assets, net of $19.1 million recorded in conjunction with the acquisition of Evolution Robotics, Inc. in October 2012 are directly associated with the home robots business unit. Goodwill of $7.7 million recorded in conjunction with the acquisition of Nekton in September 2008 is directly associated with the defense and security business unit. Other long lived assets are not directly attributable to individual business segments.

Geographic Information

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, sales to non-U.S. customers accounted for 60.9%, 59.5% and 57.3% of total revenue, respectively.

Significant Customers

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, U.S. federal government orders, contracts and subcontracts accounted for 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 approximately 75.7%, 75.3% and 75.4%, respectively, of our home robot product revenue resulted from sales to 15 customers. For the fiscal years ended December 27, 2014 and December 28, 2013, the Company generated an aggregate of 29.8% and 33.2%, respectively, of its total revenue from its home robots distributor in Japan (Sales on Demand Corporation) and a network of affiliated European distributors of the Company's home robots.

65

iROBOT CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

17. Quarterly Information (Unaudited)

	Fiscal Quarter Ended
	March 30, 2013		June 29, 2013		September 28, 2013		December 28, 2013		March 28, 2014		June 28, 2014		September 27, 2014		December 27, 2014
	(In thousands, except per share amounts)
Revenue	$	106,195	$	130,362	$	124,501	$	126,343	$	114,204	$	139,803	$	143,497	$	159,342
Gross margin	46,558		61,605		54,061		58,930		51,710		62,121		67,889		76,335
Net income (loss)	8,355		8,294		7,804		3,188		5,280		8,530		14,607		9,386
Diluted earnings (loss) per share	$	0.29	$	0.28	$	0.26	$	0.11	$	0.18	$	0.28	$	0.48	$	0.31

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

Not Applicable.

ITEM 9A.    CONTROLS AND PROCEDURES

Evaluation of disclosure controls and procedures.

As required by Rule 13a-15(b) under the Exchange Act, we have carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer (CEO) and our Chief Financial Officer (CFO), of the effectiveness, as of the end of the period covered by this report, of the design and operation of our “disclosure controls and procedures” as defined in Rule 13a-15(e) promulgated by the SEC under the Exchange Act. Based upon that evaluation, our CEO and our CFO concluded that our disclosure controls and procedures, as of the end of such period, were adequate and effective to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information was accumulated and communicated to management, as appropriate, to allow timely decisions regarding required disclosure.

Management’s Report on Internal Control Over Financial Reporting

The management of the Company is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) promulgated under the Exchange Act as a process designed by, or under the supervision of, the Company’s principal executive and principal financial officers and effected by the Company’s board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles and includes those policies and procedures that:

• Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the assets of the Company;

• Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and

• Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Under the supervision and with the participation of management, including our principal executive and financial officers, we assessed the Company’s internal control over financial reporting as of December 27, 2014, based on criteria for effective internal control over financial reporting established in Internal Control — Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this assessment, management

66

concluded that the Company maintained effective internal control over financial reporting as of December 27, 2014 based on the specified criteria.

The effectiveness of the Company’s internal control over financial reporting as of December 27, 2014 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is included herein.

Changes in Internal Control Over Financial Reporting

During the quarter ended December 27, 2014, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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ITEM 9B.    OTHER INFORMATION

Our policy governing transactions in our securities by our directors, officers, and employees permits our officers, directors, funds affiliated with our directors, and certain other persons to enter into trading plans complying with Rule 10b5-l under the Securities Exchange Act of 1934, as amended. We have been advised that certain of our officers and directors (including Colin Angle, Chief Executive Officer, Russell Campanello, EVP, Human Resources & Corporate Communications, Paolo Pirjanian, Chief Technical Officer and George McNamee, Director) of the Company have entered into trading plans (each a “Plan” and collectively, the “Plans”) covering periods after the date of this Annual Report on Form 10-K in accordance with Rule 10b5-l and our policy governing transactions in our securities. Generally, under these trading plans, the individual relinquishes control over the transactions once the trading plan is put into place. Accordingly, sales under these plans may occur at any time, including possibly before, simultaneously with, or immediately after significant events involving our company.

We anticipate that, as permitted by Rule 10b5-l and our policy governing transactions in our securities, some or all of our officers, directors and employees may establish trading plans in the future. We intend to disclose the names of our executive officers and directors who establish a trading plan in compliance with Rule 10b5-l and the requirements of our policy governing transactions in our securities in our future quarterly and annual reports on Form 10-Q and 10-K filed with the Securities and Exchange Commission. We, however, undertake no obligation to update or revise the information provided herein, including for revision or termination of an established trading plan, other than in such quarterly and annual reports.

PART  III

ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 27, 2014.

ITEM 11.    EXECUTIVE COMPENSATION

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 27, 2014.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 27, 2014.

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 27, 2014.

ITEM 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required under this item is incorporated herein by reference to the Company’s definitive proxy statement pursuant to Regulation 14A, which proxy statement will be filed with the Securities and Exchange Commission not later than 120 days after the close of the Company’s fiscal year ended December 27, 2014.

PART IV

ITEM 15.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)The following are filed as part of this Annual Report on Form 10-K:

1. Financial Statements

The following consolidated financial statements are included in Item 8:

Report of Independent Registered Public Accounting Firm

Consolidated Balance Sheets at December 27, 2014 and December 28, 2013

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Consolidated Statements of Income for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012

Consolidated Statements of Comprehensive Income for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012

Consolidated Statements of Stockholders’ Equity for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012

Consolidated Statements of Cash Flows for the Years ended December 27, 2014, December 28, 2013 and December 29, 2012

Notes to Consolidated Financial Statements

2. Financial Statement Schedules

All other schedules have been omitted since the required information is not present, or not present in amounts sufficient to require submission of the schedule, or because the information required is included in the consolidated financial statements or the Notes thereto.

3. Exhibits — See item 15(b) of this report below

(b) Exhibits

The following exhibits are filed as part of and incorporated by reference into this Annual Report:

Exhibit Number	Description
3.1(1)	Form of Second Amended and Restated Certificate of Incorporation of the Registrant dated November 15, 2005
3.2	Amended and Restated By-laws of the Registrant (filed as Exhibit 3.1 to the Registrant's Quarterly Report on Form 10-Q for the quarter ended June 28, 2014 and incorporated by reference herein)
4.1(1)	Specimen Stock Certificate for shares of the Registrant’s Common Stock
10.1†(1)	Form of Indemnification Agreement between the Registrant and its Directors and Executive Officers
10.2†	Amended and Restated 2004 Stock Option and Incentive Plan and forms of agreements thereunder (filed as Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2007 and incorporated by reference herein)
10.3†	Form of Executive Agreement between the Registrant and certain executive officers of the Registrant, as amended (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended October 2, 2010 and incorporated by reference herein)
10.4†(1)	Employment Agreement between the Registrant and Colin Angle, dated as of January 1, 1997
10.5†	2005 Stock Option and Incentive Plan, as amended, and forms of agreements thereunder (filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on June 2, 2009 and incorporated by reference herein)
10.6#(1)	Manufacturing and Services Agreement between the Registrant and Gem City Engineering Corporation, dated as of July 27, 2004
10.7†	Non-Employee Directors’ Deferred Compensation Program, as amended (filed as Exhibit 10.19 to the Registrant’s Annual Report on Form 10-K for the year ended December 29, 2007 and incorporated by reference herein)
10.8	Lease Agreement between the Registrant and Boston Properties Limited Partnership for premises located at 4-18 Crosby Drive, Bedford, Massachusetts, dated as of February 22, 2007 (as amended to date) (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 28, 2014 and incorporated by reference herein)

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Exhibit Number	Description
10.9†	Senior Executive Incentive Compensation Plan (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended July 2, 2011 and incorporated by reference herein)
10.10†	Form of Deferred Stock Award Agreement under the 2005 Stock Option and Incentive Plan (filed as Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 28, 2008 and incorporated by reference herein)
10.11†	Form of Restricted Stock Award Agreement under the 2005 Stock Option and Incentive Plan (filed as Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 28, 2008 and incorporated by reference herein)
10.12#	Manufacturing Services Agreement between the Registrant and Jabil Circuit, Inc., dated as of March 18, 2010 (filed as Exhibit 10.1 to Amendment No. 1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended April 3, 2010 and incorporated by reference herein)
10.13	Amended and Restated Credit Agreement between the Registrant and Bank of America N.A. dated December 20, 2013 (filed as Exhibit 10.15 to the Registrant's Annual Report on Form 10-K for the year ended December 28, 2013 and incorporated by reference herein)
10.14	Amended and Restated Reimbursement Agreement between the Registrant and Bank of America N.A. dated December 20, 2013 (filed as Exhibit 10.16 to the Registrant's Annual Report on Form 10-K for the year ended December 28, 2013 and incorporated by reference herein)
10.15#	Manufacturing Services Agreement between the Registrant and Kin Yat Industrial Company Limited, dated as of January 22, 2014 (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 29, 2014 and incorporated by reference herein)
10.16†*	Evolution Robotics, Inc. 2007 Stock Plan and forms of agreements thereunder
21.1*	Subsidiaries of the Registrant
23.1*	Consent of PricewaterhouseCoopers LLP
24.1	Power of Attorney (incorporated by reference to the signature page of this report on Form 10-K)
31.1*	Certification Pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934
31.2*	Certification Pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934
32.1*	Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101*	The following materials from the Registrant’s Annual Report on Form 10-K for the year ended December 27, 2014 formatted in XBRL (eXtensible Business Reporting Language): (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Stockholders' Equity, (v) the Consolidated Statements of Cash Flows, and (vi) related notes to these financial statements

† Indicates a management contract or any compensatory plan, contract or arrangement.

# Confidential treatment requested for portions of this document.

(1) Incorporated by reference herein to the exhibits to the Company’s Registration Statement on Form S-1 (File No. 333-126907)

* Filed herewith

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Annual Report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized.

iROBOT CORPORATION
By:	/s/    Colin M. Angle
	Colin M. Angle Chairman of the Board, Chief Executive Officer and Director

Date: February 13, 2015

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Colin M. Angle and Alison Dean, jointly and severally, his or her attorney-in-fact, with the power of substitution, for him or her in any and all capacities, to sign any amendments to this Annual Report on Form 10-K and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his or her substitute or substitutes, may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Annual Report on Form 10-K has been signed by the following persons in the capacities indicated on February 13, 2015.

Signature	Title(s)
/s/    COLIN M. ANGLE	Chairman of the Board, Chief Executive Officer and Director (Principal Executive Officer)
Colin M. Angle
/s/    ALISON DEAN	Executive Vice President, Chief Financial Officer and Treasurer (Principal Financial and Accounting Officer)
Alison Dean
/s/    RONALD CHWANG	Director
Ronald Chwang
/s/    MICHELLE V. STACY	Director
Michelle V. Stacy
/s/    GAIL DEEGAN	Director
Gail Deegan
/s/    ANDREA GEISSER	Director
Andrea Geisser

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/s/    GEORGE C. MCNAMEE	Director
George C. McNamee
/s/    DEBORAH G. ELLINGER	Director
Deborah G. Ellinger
/s/    PAUL J. KERN	Director
Paul J. Kern
/s/    PAUL SAGAN	Director
Paul Sagan

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EXHIBIT INDEX

Exhibit Number	Description
3.1(1)	Form of Second Amended and Restated Certificate of Incorporation of the Registrant dated November 15, 2005
3.2	Amended and Restated By-laws of the Registrant (filed as Exhibit 3.1 to the Registrant's Quarterly Report on Form 10-Q for the quarter ended June 28, 2014 and incorporated by reference herein)
4.1(1)	Specimen Stock Certificate for shares of the Registrant’s Common Stock
10.1†(1)	Form of Indemnification Agreement between the Registrant and its Directors and Executive Officers
10.2†	Amended and Restated 2004 Stock Option and Incentive Plan and forms of agreements thereunder (filed as Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2007 and incorporated by reference herein)
10.3†	Form of Executive Agreement between the Registrant and certain executive officers of the Registrant, as amended (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended October 2, 2010 and incorporated by reference herein)
10.4†(1)	Employment Agreement between the Registrant and Colin Angle, dated as of January 1, 1997
10.5†	2005 Stock Option and Incentive Plan, as amended, and forms of agreements thereunder (filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed on June 2, 2009 and incorporated by reference herein)
10.6#(1)	Manufacturing and Services Agreement between the Registrant and Gem City Engineering Corporation, dated as of July 27, 2004
10.7†	Non-Employee Directors’ Deferred Compensation Program, as amended (filed as Exhibit 10.19 to the Registrant’s Annual Report on Form 10-K for the year ended December 29, 2007 and incorporated by reference herein)
10.8	Lease Agreement between the Registrant and Boston Properties Limited Partnership for premises located at 4-18 Crosby Drive, Bedford, Massachusetts, dated as of February 22, 2007 (as amended to date) (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 28, 2014 and incorporated by reference herein)
10.9†	Senior Executive Incentive Compensation Plan (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended July 2, 2011 and incorporated by reference herein)
10.10†	Form of Deferred Stock Award Agreement under the 2005 Stock Option and Incentive Plan (filed as Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 28, 2008 and incorporated by reference herein)
10.11†	Form of Restricted Stock Award Agreement under the 2005 Stock Option and Incentive Plan (filed as Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 28, 2008 and incorporated by reference herein)
10.12#	Manufacturing Services Agreement between the Registrant and Jabil Circuit, Inc., dated as of March 18, 2010 (filed as Exhibit 10.1 to Amendment No. 1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended April 3, 2010 and incorporated by reference herein)
10.13	Amended and Restated Credit Agreement between the Registrant and Bank of America N.A. dated December 20, 2013 (filed as Exhibit 10.15 to the Registrant's Annual Report on Form 10-K for the year ended December 28, 2013 and incorporated by reference herein)
10.14	Amended and Restated Reimbursement Agreement between the Registrant and Bank of America N.A. dated December 20, 2013 (filed as Exhibit 10.16 to the Registrant's Annual Report on Form 10-K for the year ended December 28, 2013 and incorporated by reference herein)
10.15#	Manufacturing Services Agreement between the Registrant and Kin Yat Industrial Company Limited, dated as of January 22, 2014 (filed as Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the quarter ended March 29, 2014 and incorporated by reference herein)
10.16†*	Evolution Robotics, Inc. 2007 Stock Plan and forms of agreements thereunder
21.1*	Subsidiaries of the Registrant
23.1*	Consent of PricewaterhouseCoopers LLP
24.1	Power of Attorney (incorporated by reference to the signature page of this report on Form 10-K)
31.1*	Certification Pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934
31.2*	Certification Pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934
32.1*	Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

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101* The following materials from the Registrant’s Annual Report on Form 10-K for the year ended December 27, 2014 formatted in XBRL (eXtensible Business Reporting Language): (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Stockholders' Equity, (v) the Consolidated Statements of Cash Flows, and (vi) related notes to these financial statements

† Indicates a management contract or any compensatory plan, contract or arrangement.

# Confidential treatment requested for portions of this document.

(1) Incorporated by reference herein to the exhibits to the Company’s Registration Statement on Form S-1 (File No. 333-126907)

* Filed herewith

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EX-10.16

EVOLUTION ROBOTICS, INC.

2007 STOCK PLAN

1. Purposes of the Plan. The purposes of this 2007 Stock Plan are to attract and retain the best available personnel for positions of substantial responsibility, to provide additional incentives to Employees, Directors and Consultants and to promote the success of the Company's business. Options granted under the Plan may be Incentive Stock Options or Nonstatutory Stock Options, as determined by the Administrator at the time of grant. Stock Purchase Rights may also be granted under the Plan.

2. Definitions. As used herein, the following definitions shall apply:

(a) "Administrator" means the Board or any of its Committees as shall be administering the Plan in accordance with Section 4 hereof.

(b) "Applicable Laws" means the requirements relating to the administration of stock option plans under U.S. state corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation system on which the Common Stock is listed or quoted and the applicable laws of any other country or jurisdiction where Options or Stock Purchase Rights are granted under the Plan.

(c) "Board" means the Board of Directors of the Company.

(d) "Code" means the Internal Revenue Code of 1986, as amended.

(e) "Committee" means a committee of Directors appointed by the Board in accordance with Section 4 hereof.

(f) "Common Stock" means the Class A common stock, par value $0.001 per share, of the Company or any successor thereof.

(g) "Company" means Evolution Robotics, Inc., a Delaware corporation.

(h) "Consultant" means any person who is engaged by the Company or any Parent or Subsidiary to render consulting or advisory services to such entity.

(i) "Director" means a member of the Board.

(j) "Disability" means total and permanent disability as defined in Section 22(e)(3) of the Code.

(k) "Employee" means any person, including Officers and Directors, employed by the Company or any Parent or Subsidiary of the Company. A Service Provider shall not cease to be an Employee in the case of (i) any leave of absence approved by the Company or (ii) transfers between locations of the Company or between the Company, its Parent, any Subsidiary, or any successor. For purposes of Incentive Stock Options, no such leave may exceed ninety days, unless reemployment upon expiration of such leave is guaranteed by statute or contract. If reemployment upon expiration of a leave of absence approved by the Company is not so guaranteed, on the 181st day of such leave any Incentive Stock Option held by the Optionee shall cease to be treated as an Incentive Stock Option and shall be

1

treated for tax purposes as a Nonstatutory Stock Option. Neither service as a Director nor payment of a director's fee by the Company shall be sufficient to constitute "employment" by the Company.

(l) "Exchange Act" means the Securities Exchange Act of 1934, as amended.

(m)"Fair Market Value" means, as of any date, the value of Common Stock determined as follows:

(i)     If the Common Stock is listed on any established stock exchange or a national market system, including without limitation the Nasdaq National Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market, its Fair Market Value shall be the closing sales price for such stock (or the closing bid, if no sales were reported) as quoted on such exchange or system for the last market trading day prior to the time of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable;

(ii)     If the Common Stock is regularly quoted by a recognized securities dealer but selling prices are not reported, its Fair Market Value shall be the mean between the high bid and low asked prices for the Common Stock on the last market trading day prior to the day of determination; or

(iii)     In the absence of an established market for the Common Stock, the Fair Market Value thereof shall be determined in good faith by the Administrator.

(n) "Incentive Stock Option" means an Option intended to qualify as an incentive stock option within the meaning of Section 422 of the Code.

(o) "Nonstatutory Stock Option" means an Option not intended to qualify as an Incentive Stock Option.

(p) "Officer" means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act and the rules and regulations promulgated thereunder.

(q) "Option" means a stock option granted pursuant to the Plan.

(r) "Option Agreement" means a written or electronic agreement between the Company and an Optionee evidencing the terms and conditions of an individual Option grant. The Option Agreement is subject to the terms and conditions of the Plan.

(s) "Option Exchange Program" means a program whereby outstanding Options are exchanged for Options with a lower exercise price.

(t) "Optioned Stock" means the Common Stock subject to an Option or a Stock Purchase Right.

(u) "Optionee" means the holder of an outstanding Option or Stock Purchase Right granted under the Plan.

(v) "Parent" means a "parent corporation," whether now or hereafter existing, as defined in Section 424(e) of the Code.

2

(w)"Plan" means this 2007 Stock Plan.

(x) "Purchaser" means purchaser of Optioned Stock pursuant to a Stock Purchase Right.

(y) "Restricted Stock" means shares of Common Stock acquired pursuant to a grant of a Stock Purchase Right under Section 11 below.

(z) "Restricted Stock Purchase Agreement" means a written or electronic agreement between the Company and an Optionee evidencing the terms and conditions of an individual Stock Purchase Right grant. The Restricted Stock Purchase Agreement is subject to the terms and conditions of the Plan.

(aa) "Section 16(b)" means Section 16(b) of the Exchange Act.

(bb) "Service Provider" means an Employee, Director or Consultant.

(cc) "Share" means a share of the Common Stock, as adjusted in accordance with Section 12 below.

(dd) "Stock Purchase Right" means a right to purchase Common Stock pursuant to Section 11 below.

(ee) "Subsidiary" means a "subsidiary corporation," whether now or hereafter existing, as defined in Section 424(f) of the Code.

3. Stock Subject to the Plan. Subject to the provisions of Section 12 of the Plan, the maximum aggregate number of Shares which may be subject to Options and/or Stock Purchase Rights and sold under the Plan is 5,333,333 Shares. The Shares may be authorized but unissued, or reacquired Common Stock.

If an Option or Stock Purchase Right expires or becomes unexercisable without having been exercised in full, or is surrendered pursuant to an Option Exchange Program, the unpurchased Shares which were subject thereto shall become available for future grant or sale under the Plan (unless the Plan has been terminated). However, Shares that have actually been issued under the Plan, upon exercise of either an Option or Stock Purchase Right, shall not be returned to the Plan and shall not become available for future distribution under the Plan, except that if Shares of Restricted Stock are repurchased by the Company at their original purchase price, such Shares shall become available for future grant under the Plan.

4. Administration of the Plan.

(a) Administrator. The Plan shall be administered by the Board or a Committee appointed by the Board, which Committee shall be constituted to comply with Applicable Laws.

(b) Powers of the Administrator. Subject to the provisions of the Plan and, in the case of a Committee, the specific duties delegated by the Board to such Committee, and subject to the approval of any relevant authorities, the Administrator shall have the authority in its discretion:

(i) to determine the Fair Market Value;

3

(ii) to select the Service Providers to whom Options and Stock Purchase Rights may from time to time be granted hereunder;

(iii) to determine the number of Shares to be covered by each Option and Stock Purchase Right granted hereunder;

(iv) to approve forms of agreement for use under the Plan;

(v) to determine the terms and conditions of any Option or Stock Purchase Right granted hereunder. Such terms and conditions include, but are not limited to, the exercise price, the time or times when Options or Stock Purchase Rights may be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture restrictions, and any restriction or limitation regarding any Option or Stock Purchase Right or the Common Stock relating thereto, based in each case on such factors as the Administrator, in its sole discretion, shall determine;

(vi) to determine whether and under what circumstances an Option may be settled in cash under subsection 9(e) instead of Common Stock;

(vii) to reduce the exercise price of any Option to the then current Fair Market Value if the Fair Market Value of the Common Stock covered by such Option has declined since the date the Option was granted;

(viii) to initiate an Option Exchange Program;

(ix) to prescribe, amend and rescind rules and regulations relating to the Plan, including rules and regulations relating to sub-plans established for the purpose of qualifying for preferred tax treatment under foreign tax laws;

(x) to allow Optionees to satisfy withholding tax obligations by electing to have the Company withhold from the Shares to be issued upon exercise of an Option or Stock Purchase Right that number of Shares having a Fair Market Value equal to the amount required to be withheld. The Fair Market Value of the Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined. All elections by Optionees to have Shares withheld for this purpose shall be made in such form and under such conditions as the Administrator may deem necessary or advisable; and

(xi) to construe and interpret the terms of the Plan and awards granted pursuant to the Plan.

(c) Effect of Administrator's Decision. All decisions, determinations and interpretations of the Administrator shall be final and binding on all Optionees.

5. Eligibility.

(a) Nonstatutory Stock Options and Stock Purchase Rights may be granted to Service Providers. Incentive Stock Options may be granted only to Employees.

(b) Each Option shall be designated in the Option Agreement as either an Incentive Stock Option or a Nonstatutory Stock Option. However, notwithstanding such designation, to the extent that the

4

aggregate Fair Market Value of the Shares with respect to which Incentive Stock Options are exercisable for the first time by the Optionee during any calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds $100,000, the portion of such Options in excess of $100,000 shall be treated as Nonstatutory Stock Options. For purposes of this Section 5(b), Incentive Stock Options shall be taken into account in the order in which they were granted. The Fair Market Value of the Shares shall be determined as of the time the Option with respect to such Shares is granted.

(c) Neither the Plan nor any Option or Stock Purchase Right shall confer upon any Optionee any right with respect to continuing the Optionee's relationship as a Service Provider with the Company, nor shall it interfere in any way with his or her right or the Company's right to terminate such relationship at any time, with or without cause.

6. Term of Plan. The Plan shall become effective upon its adoption by the Board. It shall continue in effect for a term of ten (10) years unless sooner terminated under Sections 12 or 14 of the Plan.

7. Term of Option. The term of each Option shall be stated in the Option Agreement; provided, however, that the term shall be no more than ten (10) years from the date of grant thereof. In the case of an Incentive Stock Option granted to an Optionee who, at the time the Option is granted, owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the term of such Option shall be five (5) years from the date of grant or such shorter term as may be provided in the Option Agreement.

8. Option Exercise Price and Consideration.

(a) The per share exercise price for the Shares to be issued upon exercise of an Option shall be such price as is determined by the Administrator, but shall be subject to the following:

(i) In the case of an Incentive Stock Option

(A) granted to an Employee who, at the time of grant of such Option, owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the exercise price shall be no less than 110% of the Fair Market Value per Share on the date of grant.

(B) granted to any other Employee, the per Share exercise price shall be no less than 100% of the Fair Market Value per Share on the date of grant.

(ii) In the case of a Nonstatutory Stock Option

(A) granted to a Service Provider who, at the time of grant of such Option, owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the exercise price shall be no less than 110% of the Fair Market Value per Share on the date of grant.

(B) granted to any other Service Provider, the per Share exercise price shall be no less than 85% of the Fair Market Value per Share on the date of grant.

(iii) Notwithstanding the foregoing, Options may be granted with a per Share exercise price other than as required above pursuant to a merger or other corporate transaction.

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(b) The consideration to be paid for the Shares to be issued upon exercise of an Option, including the method of payment, shall be determined by the Administrator (and, in the case of an Incentive Stock Option, shall be determined at the time of grant). Such consideration may consist of (1) cash, (2) check, (3) promissory note, (4) other Shares which (x) in the case of Shares acquired upon exercise of an option, have been owned by the Optionee for more than six months on the date of surrender, and (y) have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the Shares as to which such Option shall be exercised, (5) consideration received by the Company under a cashless exercise program implemented by the Company in connection with the Plan, or (6) any combination of the foregoing methods of payment. In making its determination as to the type of consideration to accept, the Administrator shall consider if acceptance of such consideration may be reasonably expected to benefit the Company.

9. Exercise of Option.

(a) Procedure for Exercise; Rights as a Stockholder. Any Option granted hereunder shall be exercisable according to the terms hereof at such times and under such conditions as determined by the Administrator and set forth in the Option Agreement. Except in the case of Options granted to Officers, Directors and Consultants, Options shall become exercisable at a rate of no less than 20% per year over five (5) years from the date the Options are granted. Unless the Administrator provides otherwise, vesting of Options granted hereunder shall be tolled during any unpaid leave of absence. An Option may not be exercised for a fraction of a Share.

An Option shall be deemed exercised when the Company receives: (i) written or electronic notice of exercise (in accordance with the Option Agreement) from the person entitled to exercise the Option, and (ii) full payment for the Shares with respect to which the Option is exercised. Full payment may consist of any consideration and method of payment authorized by the Administrator and permitted by the Option Agreement and the Plan. Shares issued upon exercise of an Option shall be issued in the name of the Optionee or, if requested by the Optionee, in the name of the Optionee and his or her spouse. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Shares, notwithstanding the exercise of the Option. The Company shall issue (or cause to be issued) such Shares promptly after the Option is exercised. No adjustment will be made for a dividend or other right for which the record date is prior to the date the Shares are issued, except as provided in Section 12 of the Plan.

Exercise of an Option in any manner shall result in a decrease in the number of Shares thereafter available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to which the Option is exercised.

(b) Termination of Relationship as a Service Provider. If an Optionee ceases to be a Service Provider other than as a result of Optionee’s death or Disability, such Optionee may exercise his or her Option within such period of time as is specified in the Option Agreement (of at least thirty (30) days) to the extent that the Option is vested on the date of termination (but in no event later than the expiration of the term of the Option as set forth in the Option Agreement). In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for three (3) months following the Optionee's termination. If, on the date of termination, the Optionee is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option shall revert to the Plan. If, after termination, the

6

Optionee does not exercise his or her Option within the time specified by the Administrator, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan.

(c) Disability of Optionee. If an Optionee ceases to be a Service Provider as a result of the Optionee's Disability, the Optionee may exercise his or her Option within such period of time as is specified in the Option Agreement (of at least six (6) months) to the extent the Option is vested on the date of termination (but in no event later than the expiration of the term of such Option as set forth in the Option Agreement). In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for twelve (12) months following the Optionee's termination. If, on the date of termination, the Optionee is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option shall revert to the Plan. If, after termination, the Optionee does not exercise his or her Option within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan.

(d) Death of Optionee. If an Optionee dies while a Service Provider, the Option may be exercised within such period of time as is specified in the Option Agreement (of at least six (6) months) to the extent that the Option is vested on the date of death (but in no event later than the expiration of the term of such Option as set forth in the Option Agreement) by the Optionee's estate or by a person who acquires the right to exercise the Option by bequest or inheritance. In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for twelve (12) months following the Optionee's termination. If, at the time of death, the Optionee is not vested as to the entire Option, the Shares covered by the unvested portion of the Option shall immediately revert to the Plan. If the Option is not so exercised within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan.

(e) Buyout Provisions. The Administrator may at any time offer to buy out for a payment in cash or Shares, an Option previously granted, based on such terms and conditions as the Administrator shall establish and communicate to the Optionee at the time that such offer is made.

10. Non-Transferability of Options and Stock Purchase Rights. Options and Stock Purchase Rights may not be sold, pledged, assigned, hypothecated, transferred, or disposed of in any manner other than by will or by the laws of descent or distribution and may be exercised, during the lifetime of the Optionee, only by the Optionee.

11. Stock Purchase Rights.

(a) Rights to Purchase. Stock Purchase Rights may be issued either alone, in addition to, or in tandem with other Options, Stock Purchase Rights and/or cash awards made outside of the Plan. After the Administrator determines that it will offer Stock Purchase Rights under the Plan, it shall advise the Optionee in writing or electronically of the terms, conditions and restrictions related to the offer, including the number of Shares that such person shall be entitled to purchase, the price to be paid, and the time within which such person must accept such offer. The terms of the offer shall comply in all respects with Section 260.140.42 of Title 10 of the California Code of Regulations. The offer shall be accepted by execution of a Restricted Stock Purchase Agreement in the form determined by the Administrator.

(b) Repurchase Option. Unless the Administrator determines otherwise, the Restricted Stock Purchase Agreement shall grant the Company a repurchase option exercisable upon the voluntary or involuntary termination of the Purchaser's service with the Company for any reason (including death or Disability). The purchase price for Shares repurchased pursuant to the Restricted Stock Purchase

7

Agreement shall be the original price paid by the Purchaser and may be paid by cancellation of any indebtedness of the Purchaser to the Company. The repurchase option shall lapse at such rate as the Administrator may determine. Except with respect to Shares purchased by Officers, Directors and Consultants, the repurchase option shall in no case lapse at a rate of less than 20% per year over five (5) years from the date of purchase.

(c) Other Provisions. The Restricted Stock Purchase Agreement shall contain such other terms, provisions and conditions not inconsistent with the Plan as may be determined by the Administrator in its sole discretion.

(d) Rights as a Stockholder. Once the Stock Purchase Right is exercised, the Purchaser shall have rights equivalent to those of a stockholder and shall be a stockholder when his or her purchase is entered upon the records of the duly authorized transfer agent of the Company. No adjustment shall be made for a dividend or other right for which the record date is prior to the date the Stock Purchase Right is exercised, except as provided in Section 12 of the Plan.

12. Adjustments Upon Changes in Capitalization; Dissolution or Liquidation; Merger or

Asset Sale.

(a) Changes in Capitalization. Subject to any required action by the stockholders of the Company, the number of shares of Common Stock covered by each outstanding Option or Stock Purchase Right, and the number of shares of Common Stock which have been authorized for issuance under the Plan but as to which no Options or Stock Purchase Rights have yet been granted or which have been returned to the Plan upon cancellation or expiration of an Option or Stock Purchase Right, as well as the price per Share of Common Stock covered by each such outstanding Option or Stock Purchase Right, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock resulting from a stock split, reverse stock split, stock dividend, combination or reclassification of the Common Stock, or any other increase or decrease in the number of issued shares of Common Stock effected without receipt of consideration by the Company. The conversion of any convertible securities of the Company shall not be deemed to have been "effected without receipt of consideration." Such adjustment shall be made by the Board, whose determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issuance by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the number or price of shares of Common Stock subject to an Option or Stock Purchase Right.

(b) Dissolution or Liquidation. In the event of the proposed dissolution or liquidation of the Company, the Administrator shall notify each Optionee as soon as practicable prior to the effective date of such proposed transaction. The Administrator in its discretion may provide for an Optionee to have the right to exercise his or her Option or Stock Purchase Right until fifteen (15) days prior to such transaction as to all of the Optioned Stock covered thereby, including Shares as to which the Option or Stock Purchase Right would not otherwise be exercisable. In addition, the Administrator may provide that any Company repurchase option applicable to any Shares purchased upon exercise of an Option or Stock Purchase Right shall lapse as to all such Shares, provided the proposed dissolution or liquidation takes place at the time and in the manner contemplated. To the extent it has not been previously exercised, an Option or Stock Purchase Right will terminate immediately prior to the consummation of such proposed action. Following the effective date of a dissolution or liquidation of the Company, the Plan shall terminate in full.

8

(c) Merger or Asset Sale. In the event of a merger of the Company with or into another corporation, or the sale of substantially all of the assets of the Company, each outstanding Option and Stock Purchase Right shall be assumed or an equivalent option or right substituted by the successor corporation or a Parent or Subsidiary of the successor corporation. In the event that the successor corporation refuses to assume or substitute for the Option or Stock Purchase Right, the Optionee shall fully vest in and have the right to exercise the Option or Stock Purchase Right as to all of the Optioned Stock, including Shares as to which it would not otherwise be vested or exercisable, and following the effective date of such merger or sale of assets. If an Option or Stock Purchase Right becomes fully vested and exercisable in lieu of assumption or substitution in the event of a merger or sale of assets, the Administrator shall notify the Optionee in writing or electronically that the Option or Stock Purchase Right shall be fully exercisable for a period of fifteen (15) days from the date of such notice, and following the expiration of such period, the Plan and any outstanding Options or Stock Purchase Rights shall terminate. For the purposes of this paragraph, the Option or Stock Purchase Right shall be considered assumed if, following the merger or sale of assets, the option or right confers the right to purchase or receive, for each Share of Optioned Stock subject to the Option or Stock Purchase Right immediately prior to the merger or sale of assets, the consideration (whether stock, cash, or other securities or property) received in the merger or sale of assets by holders of Common Stock for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the merger or sale of assets is not solely common stock of the successor corporation or its Parent, the Administrator may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of the Option or Stock Purchase Right, for each Share of Optioned Stock subject to the Option or Stock Purchase Right, to be solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received by holders of Common Stock in the merger or sale of assets.

13. Time of Granting Options and Stock Purchase Rights. The date of grant of an Option or Stock Purchase Right shall, for all purposes, be the date on which the Administrator makes the determination granting such Option or Stock Purchase Right, or such other date as is determined by the Administrator. Notice of the determination shall be given to each Service Provider to whom an Option or Stock Purchase Right is so granted within a reasonable time after the date of such grant.    

14. Amendment and Termination of the Plan.

(a) Amendment and Termination. The Board may at any time amend, alter, suspend or terminate the Plan.

(b) Stockholder Approval. The Board shall obtain stockholder approval of any Plan amendment to the extent necessary and desirable to comply with Applicable Laws.

(c) Effect of Amendment or Termination. No amendment, alteration, suspension or termination of the Plan shall impair the rights of any Optionee, unless mutually agreed otherwise between the Optionee and the Administrator, which agreement must be in writing and signed by the Optionee and the Company. Termination of the Plan shall not affect the Administrator's ability to exercise the powers granted to it hereunder with respect to Options granted under the Plan prior to the date of such termination.

9

15. Conditions Upon Issuance of Shares.

(a) Legal Compliance. Shares shall not be issued pursuant to the exercise of an Option unless the exercise of such Option and the issuance and delivery of such Shares shall comply with Applicable Laws and shall be further subject to the approval of counsel for the Company with respect to such compliance.

(b) Investment Representations. As a condition to the exercise of an Option, the Administrator may require the person exercising such Option to represent and warrant at the time of any such exercise that the Shares are being purchased only for investment and without any present intention to sell or distribute such Shares if, in the opinion of counsel for the Company, such a representation is required.

16. Inability to Obtain Authority. The inability of the Company to obtain authority from any regulatory body having jurisdiction, which authority is deemed by the Company's counsel to be necessary to the lawful issuance and sale of any Shares hereunder, shall relieve the Company of any liability in respect of the failure to issue or sell such Shares as to which such requisite authority shall not have been obtained.

17. Reservation of Shares. The Company, during the term of this Plan, shall at all times reserve and keep available such number of Shares as shall be sufficient to satisfy the requirements of the Plan.

18. Stockholder Approval. The Plan shall be subject to approval by the stockholders of the Company within twelve (12) months after the date the Plan is adopted. Such stockholder approval shall be obtained in the degree and manner required under Applicable Laws.

19. Information to Optionees and Purchasers. The Company shall provide to each Optionee and to each individual who acquires Shares pursuant to the Plan, not less frequently than annually during the period such Optionee or purchaser has one or more Options or Stock Purchase Rights outstanding, and, in the case of an individual who acquires Shares pursuant to the Plan, during the period such individual owns such Shares, copies of annual financial statements. The Company shall not be required to provide such statements to key Employees whose duties in connection with the Company assure their access to equivalent information.

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EX-21.1

iROBOT CORPORATION

SUBSIDIARIES OF THE REGISTRANT

Subsidiary Legal Name	Jurisdiction of Incorporation/Formation
iRobot Securities Corporation	Massachusetts
iRobot US Holdings Inc.	Delaware
iRobot Holdings LLC.	Delaware
iRobot (India) Private Limited	India
Guangzhou iRobot Technology Consulting Company Limited	China
iRobot (HK) Limited	Hong Kong

EX-23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on FormS‑8 (File Nos. 333-193998, 333-186700, 333-184320, 333-179593, 333-172333, 333-164993, 333-157306, 333-149373, 333-140707, 333-129576) of iRobot Corporation of our report dated February 13, 2015 relating to the consolidated financial statements, and the effectiveness of internal control over financial reporting, which appears in this Form 10‑K.We also consent to the reference to us under the heading “Selected Financial Data” in this Form 10‑K.

/s/ PricewaterhouseCoopers LLP

Boston, MA

February 13, 2015

EX-31.1

Exhibit 31.1

Certifications

I, Colin M. Angle, certify that:

1. I have reviewed this Annual Report on Form 10-K of iRobot Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: February 13, 2015

/s/ COLIN M. ANGLE

Colin M. Angle

Chief Executive Officer

EX-31.2

Exhibit 31.2

Certifications

I, Alison Dean, certify that:

1. I have reviewed this Annual Report on Form 10-K of iRobot Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: February 13, 2015

/s/ ALISON DEAN

Alison Dean

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of iRobot Corporation (the “Company”) for the year ended December 27, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Colin M. Angle, the Chief Executive Officer of the Company and Alison Dean, the Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to our knowledge, that:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

This certification is being provided pursuant to 18 U.S.C. 1350 and is not to be deemed a part of the Report, nor is it to be deemed to be “filed” for any purpose whatsoever.

Dated	February 13, 2015	/s/ COLIN M. ANGLE
		Colin M. Angle Chief Executive Officer
Dated	February 13, 2015	/s/ ALISON DEAN
		Alison Dean Chief Financial Officer

XML

Summary of Significant Accounting Policies (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 67		$ 111		$ 87
Provision	0		0		37
Deduction	0	[1]	(44)	[1]	(13)	[1]
Balance at end of period	$ 67		$ 67		$ 111

[1] Deductions related to allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.

XML

Stock Options Plans and Stock-Based Compensation (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Fair value of each option grant computed on the grant date
Risk-free interest rate, minimum	1.65%	0.90%	0.63%
Risk-free interest rate, maximum	1.69%	1.77%	0.90%
Expected volatility, minimum	52.80%	54.00%	63.00%
Expected volatility, maximum	56.00%	58.00%	64.00%
Minimum [Member]
Fair value of each option grant computed on the grant date
Expected life	3 years 10 months 27 days	4 years 0 months 10 days	4 years 1 month 13 days
Maximum [Member]
Fair value of each option grant computed on the grant date
Expected life	3 years 11 months 15 days	4 years 2 months 15 days	4 years 2 months 4 days
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Based Compensation Expense Expects to Recognize in Year One	2.9
Stock Based Compensation Expense Expects to Recognize in Year Two	2.2
Stock Based Compensation Expense Expects to Recognize in Year Three	1.1
Stock Based Compensation Expense Expects to Recognize in Year Four	0.4

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Inventory (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Inventory
Inventory, Raw Materials, Net of Reserves	$ 9,455	$ 8,520
Work in process	0	0
Finished goods	38,402	37,587
Total	$ 47,857	$ 46,107

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Acquisition of Evolution Robotics, Inc. Acquisition of Evolution Robotics, Inc. (Details Textual) (Evolution Robotics, Inc. (ER) [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 02, 2012
Evolution Robotics, Inc. (ER) [Member]
Business Acquisition [Line Items]
Ownership percentage acquired	100.00%
Total acquisition date fair value of the consideration transferred	$ 74.8
Amount of purchase price placed into an escrow account to settle certain claims for indemnification for breaches	$ 8.88

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Stock Options Plans and Stock-Based Compensation (Details 1) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013	Dec. 29, 2012
Summary of stock option plan activity
Number of Shares, Beginning Balance	1,770,375		2,503,667	2,561,292
Weighted Average Exercise Price, Beginning Balance	$ 19.89		$ 18.27	$ 17.17
Number of Shares, Granted	233,181		293,325	547,948
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 37.10		$ 24.60	$ 19.70
Number of Shares, Exercised	(486,252)		(840,951)	(390,956)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 18.39		$ 16.21	$ 11.07
Number of Shares, Canceled	(43,984)		(185,666)	(214,617)
Number of Shares, Ending Balance	1,473,320		1,770,375	2,503,667
Weighted Average Exercise Price, Ending Balance	$ 22.89		$ 19.89	$ 18.27
Weighted Average Remaining Contractual Term, Ending Balance	3 years 10 months 15 days
Aggregate Intrinsic Value, Ending Balance	$ 18.2	[1]
Number of Shares, Vested and expected to vest	1,419,559
Weighted Average Exercise Price, Vested and expected to vest	$ 22.61
Weighted Average Remaining Contractual Term, Vested and expected to vest	3 years 9 months 15 days
Aggregate Intrinsic Value, Vested and expected to vest	17.8	[1]
Number of Shares, Exercisable	917,340
Weighted Average Exercise Price, Exercisable	$ 19.32
Weighted Average Remaining Contractual Term, Exercisable	2 years 9 months 24 days
Aggregate Intrinsic Value, Exercisable	$ 14.2	[1]
Share based compensation arrangement shares available for grant	4,762,446
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price	$ 27.17		$ 22.16	$ 21.91

[1] The aggregate intrinsic value on the table was calculated based upon the positive difference between the closing market value of the Company’s stock on December 27, 2014 of $34.81 and the exercise price of the underlying option.

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Summary of Significant Accounting Policies Cash and cash equivalents (Details) (USD $) In Millions, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Cash and Cash Equivalents [Abstract]
Cash Equivalents, at Carrying Value	$ 109.8	$ 101.4

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Acquisition of Evolution Robotics, Inc. Acquisition of Evolution Robotics, Inc. (Tables)

12 Months Ended

Dec. 27, 2014

Business Combinations [Abstract]

Schedule of proforma consolidated results of operations

The following unaudited pro forma consolidated results of operations for fiscal 2012 assume that the acquisition of Evolution occurred as of January 2, 2011.

	Fiscal Year Ended
	December 29, 2012
	(In thousands)
Revenue	$	445,469
Net Income	8,723

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Goodwill and other intangible assets (Details Textual) (USD $)	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Business Acquisition [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 1,800,000
Goodwill, Impairment Loss		200,000
Goodwill	48,751,000	48,751,000
Amortization expense related to acquisition of intangible assets	3,500,000	3,800,000	1,200,000
Goodwill, Impaired, Accumulated Impairment Loss	200,000
Evolution Robotics, Inc. (ER) [Member]
Business Acquisition [Line Items]
Goodwill	41,000,000
Nekton Research LLC [Member]
Business Acquisition [Line Items]
Goodwill	7,709,000
Goodwill, Gross	7,909,000
Minimum [Member]
Business Acquisition [Line Items]
Estimated useful lives for intangible assets	2 years
Maximum [Member]
Business Acquisition [Line Items]
Estimated useful lives for intangible assets	10 years
Defense & Security Robots [Member] | Nekton Research LLC [Member]
Business Acquisition [Line Items]
Goodwill, Gross	7,709,000
Research Reporting Unit [Member] | Nekton Research LLC [Member]
Business Acquisition [Line Items]
Goodwill, Gross	$ 200,000

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Stock Options Plans and Stock Based Compensation (Details 4) (Restricted Stock Units [Member], USD $)	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Restricted Stock Units [Member]
Activities relating to restricted stock units
Number of Shares Underlying Restricted Stock, Beginning Balance	927,654	941,030	607,505
Weighted Average Grant Date Fair Value, Beginning Balance	$ 25.50	$ 24.09	$ 22.77
Number of Shares Underlying Restricted Stock, Granted	372,159	521,056	685,529
Weighted Average Grant Date Fair Value, Granted	$ 38.25	$ 25.87	$ 24.62
Number of Shares Underlying Restricted Stock, Vested	(318,367)	(348,141)	(204,053)
Weighted Average Grant Date Fair Value, Vested	$ 25.38	$ 22.57	$ 21.24
Number of Shares Underlying Restricted Stock, Forfeited	(71,591)	(186,291)	(147,951)
Number of Shares Underlying Restricted Stock, Ending Balance	909,855	927,654	941,030
Weighted Average Grant Date Fair Value, Ending Balance	$ 30.53	$ 25.50	$ 24.09
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 28.42	$ 24.91	$ 25.07

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Industry Segment, Geographic Information and Significant Customers (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Number of reportable segments	2
Goodwill	48,751	48,751
Intangible assets, net	19,146	22,668
Number of customer generating major revenues	15
Evolution Robotics, Inc. (ER) [Member]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Goodwill	41,000
Government Contracts Concentration Risk [Member]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Concentration Risk, Percentage	4.30%	6.20%	15.10%
Foreign [Member] | Customers [member]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Concentration Risk, Percentage	60.90%	59.50%	57.30%
Home Robots [Member] | Evolution Robotics, Inc. (ER) [Member]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Goodwill	41,000
Intangible assets, net	19,100
Home Robots [Member] | Customers [member]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Concentration Risk, Percentage	75.70%	75.30%	75.40%
Home Robots [Member] | Major Distributor [Domain]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Concentration Risk, Percentage	29.80%	33.20%
Defense & Security Robots [Member] | Business Acquisition Nekton [Member]
Industry Segment Geographic Information and Significant Customers (Textual) [Abstract]
Goodwill	7,700

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Quarterly Information (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Details of Quarterly Information (Unaudited)
Revenue	$ 159,342	$ 143,497	$ 139,803	$ 114,204	$ 126,343	$ 124,501	$ 130,362	$ 106,195	$ 556,846	$ 487,401	$ 436,244
Gross margin	76,335	67,889	62,121	51,710	58,930	54,061	61,605	46,558	258,055	221,154	194,348
Net income (loss)	$ 9,386	$ 14,607	$ 8,530	$ 5,280	$ 3,188	$ 7,804	$ 8,294	$ 8,355	$ 37,803	$ 27,641	$ 17,297
Diluted earnings (loss) per share	$ 0.31	$ 0.48	$ 0.28	$ 0.18	$ 0.11	$ 0.26	$ 0.28	$ 0.29	$ 1.25	$ 0.94	$ 0.61

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Goodwill and other intangible assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Finite-Lived Intangible Assets, Net [Abstract]
Intangible assets cost	$ 31,500	$ 31,500
Intangible assets accumulated amortization	10,566	7,044
Finite-lived intangible assets, accumulated impairment loss	1,788	1,788
Total	19,146	22,668
Completed technology [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Intangible assets cost	30,600	30,600
Intangible assets accumulated amortization	9,691	6,202
Finite-lived intangible assets, accumulated impairment loss	1,788	1,788
Total	19,121	22,610
Research contracts [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Intangible assets cost	100	100
Intangible assets accumulated amortization	100	100
Finite-lived intangible assets, accumulated impairment loss	0	0
Total	0	0
Tradename [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Intangible assets cost	800	800
Intangible assets accumulated amortization	775	742
Finite-lived intangible assets, accumulated impairment loss	0	0
Total	$ 25	$ 58

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 27, 2014

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying consolidated financial statements include those of iRobot and its subsidiaries, after elimination of all intercompany accounts and transactions. In addition, certain prior year amounts have been reclassified to conform with the current year presentation. iRobot has prepared the accompanying consolidated financial statements in conformity with accounting principles generally accepted in the United States of America.

Reorganization [Policy Text Block]

Reorganization

In fiscal year 2012, the Company initiated a reorganization that resulted in, among other things, the centralization of all of the Company's engineering and operations activities. This reorganization was completed at the beginning of fiscal year 2013. In conjunction with this reorganization, the Company reviewed the financial statement classification of its costs and expenses. As a result of this review, the Company decided to classify certain expenses differently than had been classified and presented in prior periods to provide a more clear understanding of the Company's financial performance. As part of this review, the Company also evaluated the impact of the reorganization on its segment reporting and determined that certain modifications were necessary to present the segment information as now viewed by the Company's chief operating decision maker. Although the classification of certain expenses on the income statement changed in fiscal year 2013 as compared to prior periods, the Company recast the financial results of prior periods in a manner consistent with the fiscal year 2014 and 2013 presentation for comparability purposes. The reclassified amounts reflected in the consolidated statement of income for the year ended December 29, 2012 included herein conforms to the fiscal year 2014 and 2013 presentation. This reclassification of costs and expenses did not impact previously reported net income or earnings per share as the changes only impacted the categorization of costs within the consolidated statements of income for the periods in question. Consequently, the classification changes did not impact previously presented consolidated balance sheets, statements of cash flow or statements of stockholders' equity.

Use of Estimates

Use of Estimates

The preparation of these financial statements in conformity with accounting principles generally accepted in the United States requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosure of contingent assets and liabilities. On an ongoing basis, management evaluates these estimates and judgments, including those related to revenue recognition, sales returns, bad debts, warranty claims, inventory reserves, valuation of investments, valuation of goodwill and intangible assets, assumptions used in valuing stock-based compensation instruments and income taxes. The Company bases these estimates on historical and anticipated results, and trends and on various other assumptions that the Company believes are reasonable under the circumstances, including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results may differ from the Company’s estimates.

Fiscal Year-End

Fiscal Year-End

The Company operates and reports using a 52-53 week fiscal year ending on the Saturday closest to December 31. Accordingly, the Company’s fiscal quarters will end on the Saturday that falls closest to the last day of the third month of each quarter.

Cash and Cash Equivalents

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original or remaining maturity of three months or less at the time of purchase to be cash equivalents. The Company invests its excess cash primarily in money market funds or savings accounts of major financial institutions. Accordingly, its cash equivalents are subject to minimal credit and market risk. At December 27, 2014 and December 28, 2013, cash equivalents were comprised of money market funds totaling $109.8 million and $101.4 million, respectively. These cash equivalents are carried at cost, which approximates fair value.

Short Term Investments

Short Term Investments

The Company’s investments are classified as available-for-sale and are recorded at fair value with any unrealized gain or loss recorded as an element of stockholders’ equity. The fair value of investments is determined based on quoted market prices at the reporting date for those instruments. As of December 27, 2014 and December 28, 2013, investments consisted of:

	December 27, 2014				December 28, 2013
	Cost		Fair Market Value		Cost		Fair Market Value
	(In thousands)
Corporate and government bonds	$	36,659	$	36,166	$	22,134	$	21,954
Total short term investments	$	36,659	$	36,166	$	22,134	$	21,954

As of December 27, 2014, the Company’s investments had maturity dates ranging from July 2015 to March 2018. The Company invests primarily in investment grade securities and limits the amount of investment in any single issuer.

Revenue Recognition

Revenue Recognition

The Company derives its revenue from product sales and, to a lesser extent, government and commercial research and development contracts. The Company sells products directly to customers and indirectly through resellers and distributors. The Company recognizes revenue from sales of robots under the terms of the customer agreement upon transfer of title and risk of loss to the customer, net of estimated returns, provided that collection is determined to be reasonably assured and no significant obligations remain. Sales to domestic and Canadian resellers of home robots are typically subject to agreements allowing for limited rights of return, rebates and price protection. The Company also provides limited rights of returns for direct-to-consumer sales generated through its on-line stores. Accordingly, the Company reduces revenue for its estimates of liabilities for these rights of return, rebates and price protection at the time the related sale is recorded. The estimates for rights of return are directly based on specific terms and conditions included in the reseller agreements, historical returns experience and various other assumptions that the Company believes are reasonable under the circumstances. In the case of new product introductions, the estimates for returns applied to the new products are based upon the estimates for the most similar predecessor products until such time that the Company has enough actual returns experience for the new products, which is typically two holiday return cycles. At that time, the Company incorporates that data into the development of returns estimates for the new products. The Company updates its analysis of returns on a quarterly basis. If actual returns differ significantly from the Company's estimates, or if modifications to individual reseller agreements are entered into that impact their rights of returns, such differences could result in an adjustment to previously established reserves and could have a material impact, either favorably or unfavorably, on the Company's results of operations for the period in which the actual returns become known or the reseller agreement is modified. The Company’s international distributor agreements do not currently allow for product returns and, as a result, no reserve for returns is established for this group of customers. The estimates and reserve for rebates and price protection are based on specific programs, expected usage and historical experience. Actual results could differ from these estimates.

Under cost-plus-fixed-fee (CPFF) type contracts, the Company recognizes revenue based on costs incurred plus a pro rata portion of the total fixed fee. Costs incurred include labor and material that are directly associated with individual CPFF contracts plus indirect overhead and general and administrative type costs based upon billing rates submitted by the Company to the Defense Contract Management Agency (DCMA). Annually, the Company submits final indirect billing rates to DCMA based upon actual costs incurred throughout the year. In the situation where the Company’s final actual billing rates are greater than the provisional rates currently in effect, the Company records a cumulative revenue adjustment in the period in which the rate differential is collected from the customer. These final billing rates are subject to audit by the Defense Contract Audit Agency (DCAA), which can occur several years after the final billing rates are submitted and may result in material adjustments to revenue recognized based on estimated final billing rates. As of December 27, 2014, fiscal years 2012 through 2014 are open for audit by DCAA. In the situation where the Company’s anticipated actual billing rates will be lower than the provisional rates currently in effect, the Company records a cumulative revenue adjustment in the period in which the rate differential is identified. Revenue on firm fixed price (FFP) contracts is recognized using the percentage-of-completion method. For government product FFP contracts, revenue is recognized as the product is shipped or in accordance with the contract terms. Costs and estimated gross margins on contracts are recorded as revenue as work is performed based on the percentage that incurred costs compare to estimated total costs utilizing the most recent estimates of costs and funding. Changes in job performance, job conditions, and estimated profitability, including those arising from final contract settlements and government audits, may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Since many contracts extend over a long period of time, revisions in cost and funding estimates during the progress of work have the effect of adjusting earnings applicable to past performance in the current period. When the current contract estimate indicates a loss, a provision is made for the total anticipated loss in the current period. Revenue earned in excess of billings, if any, is recorded as unbilled revenue. Billings in excess of revenue earned, if any, are recorded as deferred revenue.

Allowance for Doubtful Accounts

Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that may not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience and the age of outstanding receivables.

Activity related to the allowance for doubtful accounts was as follows:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	67	$	111		$	87
Provision	—		—			37
Deduction(*)	—		(44		)	(13		)
Balance at end of period	$	67	$	67		$	111

_____________________  

(*) Deductions related to allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.

Inventory

Inventory

Inventory is stated at the lower of cost or net realizable value with cost being determined using the first-in, first-out (FIFO) method. The Company maintains a reserve for inventory items to provide for an estimated amount of excess or obsolete inventory.

Activity related to the inventory reserve was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	5,280		$	6,608		$	2,568
Provision	1,045			1,571			5,101
Deduction(*)	(1,074		)	(2,899		)	(1,061		)
Balance at end of period	$	5,251		$	5,280		$	6,608

 ___________________________

(*) Deductions related to inventory reserve accounts represent amounts written off against the reserve.

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

The table below summarizes activity relating to the valuation allowance:

Fiscal Year Ended	Balance at beginning  of period		Additions Charged to Costs and Expenses	Additions Charged to Goodwill	Deductions	Balance at End of Period
	(In thousands)
December 29, 2012	$	—	—	2,691	—	$	2,691
December 28, 2013	$	2,691	—	—	601	$	2,090
December 27, 2014	$	2,090	—	—	2,090	$	—

Property and Equipment

Property and Equipment

Property and equipment are recorded at cost and consist primarily of computer equipment, leasehold improvements, business applications software and machinery. Depreciation is computed using the straight-line method over the estimated useful lives as follows:

	Estimated Useful Life
Computer and research equipment	3 years
Furniture	5
Machinery	2-5
Tooling	2-5
Business applications software	5-7
Capital leases and leasehold improvements	Lesser of economic benefit period or term of lease

Expenditures for additions, renewals and betterments of plant and equipment are capitalized. Expenditures for repairs and maintenance are charged to expense as incurred. As assets are retired or sold, the related cost and accumulated depreciation are removed from the accounts and any resulting gain or loss is credited or charged to operations.

Long-Lived Assets, including Purchased Intangible Assets

Long-Lived Assets, including Purchased Intangible Assets

The Company periodically evaluates the recoverability of long-lived assets, including other purchased intangible assets whenever events and changes in circumstances, such as reductions in demand or significant economic slowdowns in the industry, indicate that the carrying amount of an asset may not be fully recoverable. When indicators of impairment are present, the carrying values of the asset group are evaluated in relation to the future undiscounted cash flows of the underlying business. The net book value of the underlying asset is adjusted to fair value if the sum of the expected discounted cash flows is less than book value. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.

Goodwill

Goodwill

Goodwill is recorded as the difference, if any, between the aggregate consideration paid for an acquisition and the fair value of the net tangible and intangible assets acquired. The Company evaluates goodwill for impairment at the reporting unit level (operating segment or one level below an operating segment) annually or more frequently if the Company believes indicators of impairment exist. In accordance with the guidance, the Company is permitted to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the Company concludes that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then a two-step goodwill impairment test is performed.

The first step of the impairment test involves comparing the fair values of the applicable reporting units with their aggregate carrying values, including goodwill. If the carrying amount of a reporting unit exceeds the reporting unit's fair value, the Company performs the second step of the goodwill impairment test to determine the amount of impairment loss. The second step of the goodwill impairment test involves comparing the implied fair value of the affected reporting unit's goodwill with the carrying value of that goodwill. The Company completes the annual impairment evaluation during the fourth quarter each year.

Research and Development

Research and Development

Costs incurred in the research and development of the Company’s products, classified as cost of revenue and research and development, are expensed as incurred.

Internal Use Software

Internal Use Software

The Company capitalizes costs associated with the development and implementation of software for internal use. At December 27, 2014 and December 28, 2013, the Company had $8.2 million and $8.2 million, respectively, of costs related to enterprise-wide software included in fixed assets. Capitalized costs are being amortized over the assets’ estimated useful lives. The Company has recorded $0.8 million, $0.9 million and $1.0 million of amortization expense for the years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively.

Concentration of Credit Risk and Significant Customers

Concentration of Credit Risk and Significant Customers

Financial instruments which potentially expose the Company to concentrations of credit risk consist of accounts receivable. Management believes its credit policies are prudent and reflect normal industry terms and business risk. At December 27, 2014, two customers accounted for a total of 32% of the Company's accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. At December 28, 2013, two customers accounted for a total of 37% of the Company’s accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, revenue from U.S. federal government orders, contracts and subcontracts, represented 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, the Company generated an aggregate of 29.8%, 33.2% and 30.6%, respectively, of total revenue from its home robots distributor in Japan and a network of affiliated European distributors of its home robots.

The Company maintains its cash in bank deposit accounts at high quality financial institutions. The individual balances, at times, may exceed federally insured limits.

Geographic Information

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, sales to non-U.S. customers accounted for 60.9%, 59.5% and 57.3% of total revenue, respectively.

Significant Customers

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, U.S. federal government orders, contracts and subcontracts accounted for 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 approximately 75.7%, 75.3% and 75.4%, respectively, of our home robot product revenue resulted from sales to 15 customers. For the fiscal years ended December 27, 2014 and December 28, 2013, the Company generated an aggregate of 29.8% and 33.2%, respectively, of its total revenue from its home robots distributor in Japan (Sales on Demand Corporation) and a network of affiliated European distributors of the Company's home robots.

Stock-Based Compensation

Stock-Based Compensation

The Company accounts for stock-based compensation through recognition of the fair value of the stock-based compensation as a charge against earnings. Stock-based compensation cost for stock options is estimated at the grant date based on each option’s fair-value as calculated by the Black-Scholes option-pricing model. Stock-based compensation cost for time-based restricted stock units and performance-based restricted stock units is measured based on the closing fair market value of the Company's common stock on the date of grant. For performance-based restricted stock units, the compensation costs will be subsequently adjusted for assumptions of achievement during the period in which the assumption of achievement changes, as applicable. The Company recognizes stock-based compensation cost as expense ratably on a straight-line basis over the requisite service period, net of estimated forfeitures.

Advertising Expense

Advertising Expense

The Company expenses advertising costs as they are incurred. During the years ended December 27, 2014, December 28, 2013 and December 29, 2012 advertising expense totaled $46.1 million, $38.2 million and $34.9 million, respectively.

Net Income Per Share

Net Income Per Share

The following table presents the calculation of both basic and diluted net income per share:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
Net income	$	37,803	$	27,641	$	17,297
Weighted-average shares outstanding	29,485		28,495		27,577
Dilutive effect of employee stock options and restricted shares	725		859		724
Diluted weighted average shares outstanding	30,210		29,354		28,301
Basic income per share	$	1.28	$	0.97	$	0.63
Diluted income per share	$	1.25	$	0.94	$	0.61

Potentially dilutive securities representing approximately 0.2 million, 0.7 million and 0.8 million shares of common stock for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively, were excluded from the computation of diluted earnings per share for these periods because their effect would have been antidilutive.

Income Taxes

Income Taxes

The Company is subject to taxation in the United States and various states and foreign jurisdictions. The statute of limitations for examinations by federal and state tax authorities is closed for fiscal years prior to 2011. Federal and state carryforward attributes that were generated prior to fiscal year 2011 may still be adjusted upon examination by the Internal Revenue Service (IRS) or state tax authorities if they either have been or will be used in a period for which the statute of limitations is still open.

Deferred taxes are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect in the years in which the differences are expected to reverse. Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

The Company monitors the realization of its deferred tax assets based on changes in circumstances, for example, recurring periods of income for tax purposes following historical periods of cumulative losses, generation of tax credits compared to future utilization of credits, or changes in tax laws or regulations. The Company's income tax provision and its assessment of the ability to realize its deferred tax assets involve significant judgments and estimates. The Company is currently generating state research credits that exceed the amount being utilized. As a result of this trend, a valuation allowance may be needed in the future related to these state tax credits.

As of December 28, 2013, the Company maintained a valuation allowance of $2.1 million related to certain state tax attributes from the Evolution Robotics, Inc. acquisition. During the year ended December 27, 2014, this valuation allowance was released when the realization of these state tax attributes became more likely than not.

Comprehensive Income

Comprehensive Income

Accumulated other comprehensive income includes unrealized gains and losses on certain investments. The differences between net income and comprehensive income were related to unrealized gains (losses) on investments, net of tax.

Fair Value Measurements

Fair Value Measurements

The authoritative guidance for fair value establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

Financial Assets

The Company’s financial assets measured at fair value on a recurring basis at December 27, 2014, were as follows:

	Fair Value Measurements as of
	December 27, 2014
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	109,843	$	—	$	—
Corporate and government bonds	—		36,166		—
Total assets measured at fair value	$	109,843	$	36,166	$	—

The Company’s financial assets measured at fair value on a recurring basis at December 28, 2013, were as follows:

	Fair Value Measurements as of
	December 28, 2013
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	101,441	$	—	$	—
Corporate and government bonds	—		21,954		—
Total assets measured at fair value	$	101,441	$	21,954	$	—

In each table above, the bond investments are valued based on observable market values as of the Company’s reporting date and are included in Level 2. The bond investments are recorded at fair value and marked-to-market at the end of each reporting period and realized and unrealized gains and losses are included in comprehensive income for that period. The fair value of the Company’s bond investments are included in short term investments in its consolidated balance sheets.

Non-financial Assets

The Company's non-financial assets, which include goodwill, intangible assets, and property and equipment are not required to be measured at fair value on a recurring basis. However, the Company evaluates the non-financial assets for impairment if a trigger event occurs, or when an annual impairment test is performed. If the asset is determined to be impaired, the asset is required to be recorded at fair value.

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The Company’s financial assets measured at fair value on a recurring basis at December 27, 2014, were as follows:

	Fair Value Measurements as of
	December 27, 2014
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	109,843	$	—	$	—
Corporate and government bonds	—		36,166		—
Total assets measured at fair value	$	109,843	$	36,166	$	—

The Company’s financial assets measured at fair value on a recurring basis at December 28, 2013, were as follows:

	Fair Value Measurements as of
	December 28, 2013
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	101,441	$	—	$	—
Corporate and government bonds	—		21,954		—
Total assets measured at fair value	$	101,441	$	21,954	$	—

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In August 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-15, “Presentation of Financial Statements - Going Concern.” ASU No. 2014-15 requires management of public and private companies to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management will also be required to evaluate and disclose whether its plans alleviate that doubt. The new standard is effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016. The Company does not believe that the impact of this amendment will be material to the Company’s consolidated financial statements.

In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” ASU No. 2014-12 requires a reporting entity to treat a performance target that affects vesting and that could be achieved after the requisite service period as a performance condition. It is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. The Company is currently assessing the potential impact of ASU No. 2014-12 on its consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently assessing the potential impact of ASU No. 2014-09 on its consolidated financial statements.

On April 10, 2014, the FASB issued ASU No. 2014-08 “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU No. 2014-08 changes the criteria for reporting discontinued operations and modifies related disclosure requirements. The new guidance is effective on a prospective basis for fiscal years beginning after December 15, 2014, and interim periods within annual periods beginning on or after December 15, 2015. Early adoption is permitted for new disposals (or new classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The Company is currently assessing the future impact of ASU No. 2014-08 on its consolidated financial statements.

In July 2013, the FASB issued ASU 2013-11 “Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Exists”, related to the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists.  This guidance clarifies prior guidance and eliminates diversity in practice on the presentation of unrecognized tax benefits when certain situations exist at the reporting date.  This guidance is effective for annual reporting periods beginning on or after December 15, 2013 and subsequent interim periods.  The impact of this amendment on the Company's consolidated financial statements was not material.

From time to time, new accounting pronouncements are issued by FASB that are adopted by the Company as of the specified effective date. Unless otherwise discussed, the Company believes that the impact of recently issued standards, which are not yet effective, will not have a material impact on its consolidated financial statements upon adoption.

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Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Schedule of Cost-method Investments [Line Items]
Other Assets, Noncurrent	$ 10,751	$ 10,501

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Summary of Significant Accounting Policies (Details 4) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Basic and Diluted Net Income Per Share
Net income, as reported	$ 9,386	$ 14,607	$ 8,530	$ 5,280	$ 3,188	$ 7,804	$ 8,294	$ 8,355	$ 37,803	$ 27,641	$ 17,297
Weighted-average shares outstanding									29,485	28,495	27,577
Dilutive effect of employee stock options and restricted shares									725	859	724
Diluted weighted average shares outstanding									30,210	29,354	28,301
Basic income per share									$ 1.28	$ 0.97	$ 0.63
Diluted earnings (loss) per share	$ 0.31	$ 0.48	$ 0.28	$ 0.18	$ 0.11	$ 0.26	$ 0.28	$ 0.29	$ 1.25	$ 0.94	$ 0.61

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Industry Segment Geographic Information and Significant Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Revenue:
Total revenue	$ 159,342	$ 143,497	$ 139,803	$ 114,204	$ 126,343	$ 124,501	$ 130,362	$ 106,195	$ 556,846		$ 487,401		$ 436,244
Cost of revenue:
Total cost of revenue									298,791		266,247		241,896
Gross margin:
Gross margin	76,335	67,889	62,121	51,710	58,930	54,061	61,605	46,558	258,055		221,154		194,348
Research and development									69,408	[1]	63,649	[1]	57,066	[1]
Selling and marketing									86,091	[1]	71,529	[1]	66,412	[1]
General and administrative									49,439	[1]	53,358	[1]	45,698	[1]
Other income (expense), net									(708)		(203)		435
Income before income taxes									52,409		32,415		25,607
Home Robots [Member]
Revenue:
Total revenue									507,414		427,853		356,805
Cost of revenue:
Total cost of revenue									251,095		217,011		174,756
Gross margin:
Gross margin									256,319		210,842		182,049
Defense & Security Robots [Member]
Revenue:
Total revenue									45,502		50,003		70,948
Cost of revenue:
Total cost of revenue									24,409		24,975		40,468
Gross margin:
Gross margin									21,093		25,028		30,480
Other Segments [Member]
Revenue:
Total revenue									3,930		9,545		8,491
Cost of revenue:
Total cost of revenue									23,287		24,261		26,672
Gross margin:
Gross margin									$ (19,357)		$ (14,716)		$ (18,181)

[1] Stock-based compensation recorded in fiscal 2014, 2013 and 2012 breaks down by expense classification as follows: Fiscal Year Ended December 27, 2014 December 28, 2013 December 29, 2012 (In thousands)Cost of revenue$865 $700 $889Research and development3,359 2,700 1,904Selling and marketing1,296 1,246 808General and administrative8,258 8,763 7,382

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Quarterly Information (Unaudited) (Tables)

12 Months Ended

Dec. 27, 2014

Quarterly Financial Information Disclosure [Abstract]

Details of Quarterly Information (Unaudited)

	Fiscal Quarter Ended
	March 30, 2013		June 29, 2013		September 28, 2013		December 28, 2013		March 28, 2014		June 28, 2014		September 27, 2014		December 27, 2014
	(In thousands, except per share amounts)
Revenue	$	106,195	$	130,362	$	124,501	$	126,343	$	114,204	$	139,803	$	143,497	$	159,342
Gross margin	46,558		61,605		54,061		58,930		51,710		62,121		67,889		76,335
Net income (loss)	8,355		8,294		7,804		3,188		5,280		8,530		14,607		9,386
Diluted earnings (loss) per share	$	0.29	$	0.28	$	0.26	$	0.11	$	0.18	$	0.28	$	0.48	$	0.31

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Revolving Line of Credit (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014
Revolving Line of Credit (Textual) [Abstract]
Maximum amount available for borrowing under credit facility	$ 75.0
Interest on loans under the credit facility	at either (1) LIBOR plus a margin, currently equal to 1.0%, based on the Company's ratio of indebtedness to Adjusted EBITDA (the "Eurodollar Rate"), or (2) the lender's base rate.
Interest rate above the LIBOR Daily Floating Rate or the Prime Rate of Lender under condition one	1.00%
Interest Rate Above the Federal Fund Rate Under Condition Two	0.50%
Interest rate above the LIBOR rate plus under condition two	1.00%
Termination date for all outstanding amount and credit facility	Dec. 20, 2018

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Commitments and Contingencies (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Commitments and Contingencies (Textual) [Abstract]
Rental expense under operating leases	$ 4.8	$ 5.3	$ 4.4
Contractual Obligation	$ 78.1

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Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 2,090	$ 2,691	$ 0
Valuation Allowances and Reserves, Charged to Cost and Expense	1,045	1,571	5,101
Valuation Allowances and Reserves, Charged to Other Accounts	0		2,691
Valuation Allowances and Reserves, Deductions	2,090	601	0
Balance at End of Period	$ 0	$ 2,090	$ 2,691

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Summary of Significant Accounting Policies Inventory valuation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Deductions	$ 2,090		$ 601		$ 0
Inventory Valuation Reserve [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Deductions	$ 1,074	[1]	$ 2,899	[1]	$ 1,061	[1]

[1] Deductions related to inventory reserve accounts represent amounts written off against the reserve.

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 27, 2014

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying consolidated financial statements include those of iRobot and its subsidiaries, after elimination of all intercompany accounts and transactions. In addition, certain prior year amounts have been reclassified to conform with the current year presentation. iRobot has prepared the accompanying consolidated financial statements in conformity with accounting principles generally accepted in the United States of America.

Reorganization

In fiscal year 2012, the Company initiated a reorganization that resulted in, among other things, the centralization of all of the Company's engineering and operations activities. This reorganization was completed at the beginning of fiscal year 2013. In conjunction with this reorganization, the Company reviewed the financial statement classification of its costs and expenses. As a result of this review, the Company decided to classify certain expenses differently than had been classified and presented in prior periods to provide a more clear understanding of the Company's financial performance. As part of this review, the Company also evaluated the impact of the reorganization on its segment reporting and determined that certain modifications were necessary to present the segment information as now viewed by the Company's chief operating decision maker. Although the classification of certain expenses on the income statement changed in fiscal year 2013 as compared to prior periods, the Company recast the financial results of prior periods in a manner consistent with the fiscal year 2014 and 2013 presentation for comparability purposes. The reclassified amounts reflected in the consolidated statement of income for the year ended December 29, 2012 included herein conforms to the fiscal year 2014 and 2013 presentation. This reclassification of costs and expenses did not impact previously reported net income or earnings per share as the changes only impacted the categorization of costs within the consolidated statements of income for the periods in question. Consequently, the classification changes did not impact previously presented consolidated balance sheets, statements of cash flow or statements of stockholders' equity.

Use of Estimates

The preparation of these financial statements in conformity with accounting principles generally accepted in the United States requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosure of contingent assets and liabilities. On an ongoing basis, management evaluates these estimates and judgments, including those related to revenue recognition, sales returns, bad debts, warranty claims, inventory reserves, valuation of investments, valuation of goodwill and intangible assets, assumptions used in valuing stock-based compensation instruments and income taxes. The Company bases these estimates on historical and anticipated results, and trends and on various other assumptions that the Company believes are reasonable under the circumstances, including assumptions as to future events. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. By their nature, estimates are subject to an inherent degree of uncertainty. Actual results may differ from the Company’s estimates.

Fiscal Year-End

The Company operates and reports using a 52-53 week fiscal year ending on the Saturday closest to December 31. Accordingly, the Company’s fiscal quarters will end on the Saturday that falls closest to the last day of the third month of each quarter.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original or remaining maturity of three months or less at the time of purchase to be cash equivalents. The Company invests its excess cash primarily in money market funds or savings accounts of major financial institutions. Accordingly, its cash equivalents are subject to minimal credit and market risk. At December 27, 2014 and December 28, 2013, cash equivalents were comprised of money market funds totaling $109.8 million and $101.4 million, respectively. These cash equivalents are carried at cost, which approximates fair value.

Short Term Investments

The Company’s investments are classified as available-for-sale and are recorded at fair value with any unrealized gain or loss recorded as an element of stockholders’ equity. The fair value of investments is determined based on quoted market prices at the reporting date for those instruments. As of December 27, 2014 and December 28, 2013, investments consisted of:

	December 27, 2014				December 28, 2013
	Cost		Fair Market Value		Cost		Fair Market Value
	(In thousands)
Corporate and government bonds	$	36,659	$	36,166	$	22,134	$	21,954
Total short term investments	$	36,659	$	36,166	$	22,134	$	21,954

As of December 27, 2014, the Company’s investments had maturity dates ranging from July 2015 to March 2018. The Company invests primarily in investment grade securities and limits the amount of investment in any single issuer.

Revenue Recognition

The Company derives its revenue from product sales and, to a lesser extent, government and commercial research and development contracts. The Company sells products directly to customers and indirectly through resellers and distributors. The Company recognizes revenue from sales of robots under the terms of the customer agreement upon transfer of title and risk of loss to the customer, net of estimated returns, provided that collection is determined to be reasonably assured and no significant obligations remain. Sales to domestic and Canadian resellers of home robots are typically subject to agreements allowing for limited rights of return, rebates and price protection. The Company also provides limited rights of returns for direct-to-consumer sales generated through its on-line stores. Accordingly, the Company reduces revenue for its estimates of liabilities for these rights of return, rebates and price protection at the time the related sale is recorded. The estimates for rights of return are directly based on specific terms and conditions included in the reseller agreements, historical returns experience and various other assumptions that the Company believes are reasonable under the circumstances. In the case of new product introductions, the estimates for returns applied to the new products are based upon the estimates for the most similar predecessor products until such time that the Company has enough actual returns experience for the new products, which is typically two holiday return cycles. At that time, the Company incorporates that data into the development of returns estimates for the new products. The Company updates its analysis of returns on a quarterly basis. If actual returns differ significantly from the Company's estimates, or if modifications to individual reseller agreements are entered into that impact their rights of returns, such differences could result in an adjustment to previously established reserves and could have a material impact, either favorably or unfavorably, on the Company's results of operations for the period in which the actual returns become known or the reseller agreement is modified. The Company’s international distributor agreements do not currently allow for product returns and, as a result, no reserve for returns is established for this group of customers. The estimates and reserve for rebates and price protection are based on specific programs, expected usage and historical experience. Actual results could differ from these estimates.

Under cost-plus-fixed-fee (CPFF) type contracts, the Company recognizes revenue based on costs incurred plus a pro rata portion of the total fixed fee. Costs incurred include labor and material that are directly associated with individual CPFF contracts plus indirect overhead and general and administrative type costs based upon billing rates submitted by the Company to the Defense Contract Management Agency (DCMA). Annually, the Company submits final indirect billing rates to DCMA based upon actual costs incurred throughout the year. In the situation where the Company’s final actual billing rates are greater than the provisional rates currently in effect, the Company records a cumulative revenue adjustment in the period in which the rate differential is collected from the customer. These final billing rates are subject to audit by the Defense Contract Audit Agency (DCAA), which can occur several years after the final billing rates are submitted and may result in material adjustments to revenue recognized based on estimated final billing rates. As of December 27, 2014, fiscal years 2012 through 2014 are open for audit by DCAA. In the situation where the Company’s anticipated actual billing rates will be lower than the provisional rates currently in effect, the Company records a cumulative revenue adjustment in the period in which the rate differential is identified. Revenue on firm fixed price (FFP) contracts is recognized using the percentage-of-completion method. For government product FFP contracts, revenue is recognized as the product is shipped or in accordance with the contract terms. Costs and estimated gross margins on contracts are recorded as revenue as work is performed based on the percentage that incurred costs compare to estimated total costs utilizing the most recent estimates of costs and funding. Changes in job performance, job conditions, and estimated profitability, including those arising from final contract settlements and government audits, may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Since many contracts extend over a long period of time, revisions in cost and funding estimates during the progress of work have the effect of adjusting earnings applicable to past performance in the current period. When the current contract estimate indicates a loss, a provision is made for the total anticipated loss in the current period. Revenue earned in excess of billings, if any, is recorded as unbilled revenue. Billings in excess of revenue earned, if any, are recorded as deferred revenue.

Allowance for Doubtful Accounts

The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that may not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience and the age of outstanding receivables.

Activity related to the allowance for doubtful accounts was as follows:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	67	$	111		$	87
Provision	—		—			37
Deduction(*)	—		(44		)	(13		)
Balance at end of period	$	67	$	67		$	111

_____________________  

(*) Deductions related to allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.

Inventory

Inventory is stated at the lower of cost or net realizable value with cost being determined using the first-in, first-out (FIFO) method. The Company maintains a reserve for inventory items to provide for an estimated amount of excess or obsolete inventory.

Activity related to the inventory reserve was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	5,280		$	6,608		$	2,568
Provision	1,045			1,571			5,101
Deduction(*)	(1,074		)	(2,899		)	(1,061		)
Balance at end of period	$	5,251		$	5,280		$	6,608

 ___________________________

(*) Deductions related to inventory reserve accounts represent amounts written off against the reserve.

Property and Equipment

Property and equipment are recorded at cost and consist primarily of computer equipment, leasehold improvements, business applications software and machinery. Depreciation is computed using the straight-line method over the estimated useful lives as follows:

	Estimated Useful Life
Computer and research equipment	3 years
Furniture	5
Machinery	2-5
Tooling	2-5
Business applications software	5-7
Capital leases and leasehold improvements	Lesser of economic benefit period or term of lease

Expenditures for additions, renewals and betterments of plant and equipment are capitalized. Expenditures for repairs and maintenance are charged to expense as incurred. As assets are retired or sold, the related cost and accumulated depreciation are removed from the accounts and any resulting gain or loss is credited or charged to operations.

Long-Lived Assets, including Purchased Intangible Assets

The Company periodically evaluates the recoverability of long-lived assets, including other purchased intangible assets whenever events and changes in circumstances, such as reductions in demand or significant economic slowdowns in the industry, indicate that the carrying amount of an asset may not be fully recoverable. When indicators of impairment are present, the carrying values of the asset group are evaluated in relation to the future undiscounted cash flows of the underlying business. The net book value of the underlying asset is adjusted to fair value if the sum of the expected discounted cash flows is less than book value. Fair values are based on estimates of market prices and assumptions concerning the amount and timing of estimated future cash flows and assumed discount rates, reflecting varying degrees of perceived risk.

Goodwill

Goodwill is recorded as the difference, if any, between the aggregate consideration paid for an acquisition and the fair value of the net tangible and intangible assets acquired. The Company evaluates goodwill for impairment at the reporting unit level (operating segment or one level below an operating segment) annually or more frequently if the Company believes indicators of impairment exist. In accordance with the guidance, the Company is permitted to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the Company concludes that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then a two-step goodwill impairment test is performed.

The first step of the impairment test involves comparing the fair values of the applicable reporting units with their aggregate carrying values, including goodwill. If the carrying amount of a reporting unit exceeds the reporting unit's fair value, the Company performs the second step of the goodwill impairment test to determine the amount of impairment loss. The second step of the goodwill impairment test involves comparing the implied fair value of the affected reporting unit's goodwill with the carrying value of that goodwill. The Company completes the annual impairment evaluation during the fourth quarter each year.

Research and Development

Costs incurred in the research and development of the Company’s products, classified as cost of revenue and research and development, are expensed as incurred.

Internal Use Software

The Company capitalizes costs associated with the development and implementation of software for internal use. At December 27, 2014 and December 28, 2013, the Company had $8.2 million and $8.2 million, respectively, of costs related to enterprise-wide software included in fixed assets. Capitalized costs are being amortized over the assets’ estimated useful lives. The Company has recorded $0.8 million, $0.9 million and $1.0 million of amortization expense for the years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively.

Concentration of Credit Risk and Significant Customers

Financial instruments which potentially expose the Company to concentrations of credit risk consist of accounts receivable. Management believes its credit policies are prudent and reflect normal industry terms and business risk. At December 27, 2014, two customers accounted for a total of 32% of the Company's accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. At December 28, 2013, two customers accounted for a total of 37% of the Company’s accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, revenue from U.S. federal government orders, contracts and subcontracts, represented 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, the Company generated an aggregate of 29.8%, 33.2% and 30.6%, respectively, of total revenue from its home robots distributor in Japan and a network of affiliated European distributors of its home robots.

The Company maintains its cash in bank deposit accounts at high quality financial institutions. The individual balances, at times, may exceed federally insured limits.

Stock-Based Compensation

The Company accounts for stock-based compensation through recognition of the fair value of the stock-based compensation as a charge against earnings. Stock-based compensation cost for stock options is estimated at the grant date based on each option’s fair-value as calculated by the Black-Scholes option-pricing model. Stock-based compensation cost for time-based restricted stock units and performance-based restricted stock units is measured based on the closing fair market value of the Company's common stock on the date of grant. For performance-based restricted stock units, the compensation costs will be subsequently adjusted for assumptions of achievement during the period in which the assumption of achievement changes, as applicable. The Company recognizes stock-based compensation cost as expense ratably on a straight-line basis over the requisite service period, net of estimated forfeitures.

Advertising Expense

The Company expenses advertising costs as they are incurred. During the years ended December 27, 2014, December 28, 2013 and December 29, 2012 advertising expense totaled $46.1 million, $38.2 million and $34.9 million, respectively.

Net Income Per Share

The following table presents the calculation of both basic and diluted net income per share:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
Net income	$	37,803	$	27,641	$	17,297
Weighted-average shares outstanding	29,485		28,495		27,577
Dilutive effect of employee stock options and restricted shares	725		859		724
Diluted weighted average shares outstanding	30,210		29,354		28,301
Basic income per share	$	1.28	$	0.97	$	0.63
Diluted income per share	$	1.25	$	0.94	$	0.61

Potentially dilutive securities representing approximately 0.2 million, 0.7 million and 0.8 million shares of common stock for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively, were excluded from the computation of diluted earnings per share for these periods because their effect would have been antidilutive.

Income Taxes

The Company is subject to taxation in the United States and various states and foreign jurisdictions. The statute of limitations for examinations by federal and state tax authorities is closed for fiscal years prior to 2011. Federal and state carryforward attributes that were generated prior to fiscal year 2011 may still be adjusted upon examination by the Internal Revenue Service (IRS) or state tax authorities if they either have been or will be used in a period for which the statute of limitations is still open.

Deferred taxes are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect in the years in which the differences are expected to reverse. Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

The Company monitors the realization of its deferred tax assets based on changes in circumstances, for example, recurring periods of income for tax purposes following historical periods of cumulative losses, generation of tax credits compared to future utilization of credits, or changes in tax laws or regulations. The Company's income tax provision and its assessment of the ability to realize its deferred tax assets involve significant judgments and estimates. The Company is currently generating state research credits that exceed the amount being utilized. As a result of this trend, a valuation allowance may be needed in the future related to these state tax credits.

As of December 28, 2013, the Company maintained a valuation allowance of $2.1 million related to certain state tax attributes from the Evolution Robotics, Inc. acquisition. During the year ended December 27, 2014, this valuation allowance was released when the realization of these state tax attributes became more likely than not.

Comprehensive Income

Accumulated other comprehensive income includes unrealized gains and losses on certain investments. The differences between net income and comprehensive income were related to unrealized gains (losses) on investments, net of tax.

Fair Value Measurements

The authoritative guidance for fair value establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

Financial Assets

The Company’s financial assets measured at fair value on a recurring basis at December 27, 2014, were as follows:

	Fair Value Measurements as of
	December 27, 2014
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	109,843	$	—	$	—
Corporate and government bonds	—		36,166		—
Total assets measured at fair value	$	109,843	$	36,166	$	—

The Company’s financial assets measured at fair value on a recurring basis at December 28, 2013, were as follows:

	Fair Value Measurements as of
	December 28, 2013
Description	Level 1		Level 2		Level 3
	(In thousands)
Assets:
Money market funds	$	101,441	$	—	$	—
Corporate and government bonds	—		21,954		—
Total assets measured at fair value	$	101,441	$	21,954	$	—

In each table above, the bond investments are valued based on observable market values as of the Company’s reporting date and are included in Level 2. The bond investments are recorded at fair value and marked-to-market at the end of each reporting period and realized and unrealized gains and losses are included in comprehensive income for that period. The fair value of the Company’s bond investments are included in short term investments in its consolidated balance sheets.

Non-financial Assets

The Company's non-financial assets, which include goodwill, intangible assets, and property and equipment are not required to be measured at fair value on a recurring basis. However, the Company evaluates the non-financial assets for impairment if a trigger event occurs, or when an annual impairment test is performed. If the asset is determined to be impaired, the asset is required to be recorded at fair value.

Recent Accounting Pronouncements

In August 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-15, “Presentation of Financial Statements - Going Concern.” ASU No. 2014-15 requires management of public and private companies to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management will also be required to evaluate and disclose whether its plans alleviate that doubt. The new standard is effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016. The Company does not believe that the impact of this amendment will be material to the Company’s consolidated financial statements.

In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.” ASU No. 2014-12 requires a reporting entity to treat a performance target that affects vesting and that could be achieved after the requisite service period as a performance condition. It is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2015. Early adoption is permitted. The Company is currently assessing the potential impact of ASU No. 2014-12 on its consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The new guidance is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently assessing the potential impact of ASU No. 2014-09 on its consolidated financial statements.

On April 10, 2014, the FASB issued ASU No. 2014-08 “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU No. 2014-08 changes the criteria for reporting discontinued operations and modifies related disclosure requirements. The new guidance is effective on a prospective basis for fiscal years beginning after December 15, 2014, and interim periods within annual periods beginning on or after December 15, 2015. Early adoption is permitted for new disposals (or new classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The Company is currently assessing the future impact of ASU No. 2014-08 on its consolidated financial statements.

In July 2013, the FASB issued ASU 2013-11 “Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Exists”, related to the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists.  This guidance clarifies prior guidance and eliminates diversity in practice on the presentation of unrecognized tax benefits when certain situations exist at the reporting date.  This guidance is effective for annual reporting periods beginning on or after December 15, 2013 and subsequent interim periods.  The impact of this amendment on the Company's consolidated financial statements was not material.

From time to time, new accounting pronouncements are issued by FASB that are adopted by the Company as of the specified effective date. Unless otherwise discussed, the Company believes that the impact of recently issued standards, which are not yet effective, will not have a material impact on its consolidated financial statements upon adoption.

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Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Reconciliation of the expected tax (benefit) expense
Expected federal income tax	$ 18,344	$ 11,345	$ 8,962
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	691	405	338
State taxes (net of federal benefit)	1,058	867	497
Federal and state credits	(1,487)	(3,909)	(418)
Valuation Allowances and Reserves, Adjustments	(2,090)	0	0
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	(1,562)	(1,168)	(1,100)
Other	(172)	(70)	31
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount	(176)	(2,696)	0
Total expected tax (benefits) expenses	$ 14,606	$ 4,774	$ 8,310

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Summary of Significant Accounting Policies (Details 5) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Level 1 [Member]
Asset
Total assets measured at fair value	$ 109,843	$ 101,441
Level 1 [Member] | Money Market Funds [Member]
Asset
Total assets measured at fair value	109,843	101,441
Level 2 [Member]
Asset
Total assets measured at fair value	36,166	21,954
Level 2 [Member] | Bonds [Member]
Asset
Total assets measured at fair value	$ 36,166	$ 21,954

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Accrued Expenses (Tables)

12 Months Ended

Dec. 27, 2014

Accrued Liabilities, Current [Abstract]

Components of accrued expenses

Accrued expenses consist of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Accrued warranty	$	7,769	$	6,497
Accrued direct fulfillment costs	1,346		1,362
Accrued sales tax	867		831
Accrued customer deposits	702		103
Accrued rent	701		726
Accrued sales commissions	531		539
Accrued contractors	217		509
Accrued other	6,568		4,313
	$	18,701	$	14,880

Accrued compensation consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Accrued bonus	$	8,455	$	13,002
Accrued other compensation	7,780		6,604
	$	16,235	$	19,606

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Property and Equipment (Tables)

12 Months Ended

Dec. 27, 2014

Property, Plant and Equipment [Abstract]

Property and equipment

Depreciation is computed using the straight-line method over the estimated useful lives as follows:

	Estimated Useful Life
Computer and research equipment	3 years
Furniture	5
Machinery	2-5
Tooling	2-5
Business applications software	5-7
Capital leases and leasehold improvements	Lesser of economic benefit period or term of lease

Property and equipment consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Computer and equipment	$	15,173	$	13,715
Furniture	2,297		1,845
Machinery	5,307		3,705
Tooling	18,614		12,228
Leasehold improvements	20,833		15,983
Business applications software	8,214		8,162
	70,438		55,638
Less: accumulated depreciation	39,141		31,977
	$	31,297	$	23,661

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Stock Options Plans and Stock-Based Compensation (Details 2) (USD $)	0 Months Ended	12 Months Ended
	Oct. 02, 2012	Dec. 27, 2014
Summary of information about stock options outstanding
Range of Exercise Price, Minimum	$ 2.55	$ 3.54
Range of Exercise Price, Maximum	$ 4.81	$ 43.35
Number Outstanding		1,473,320
Options Outstanding Weighted Average Remaining Contractual Life		3 years 10 months 15 days
Weighted Average Exercise Price		$ 22.89
Number Exercisable		917,340
Weighted Average Exercise Price		$ 19.32
Range of Exercise Prices One [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 3.54
Range of Exercise Price, Maximum		$ 7.76
Number Outstanding		156,380
Options Outstanding Weighted Average Remaining Contractual Life		3 years 8 months 5 days
Weighted Average Exercise Price		$ 6.08
Number Exercisable		134,520
Weighted Average Exercise Price		$ 6.29
Range of Exercise Prices Two [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 8.10
Range of Exercise Price, Maximum		$ 14.13
Number Outstanding		100,551
Options Outstanding Weighted Average Remaining Contractual Life		1 year 1 month 5 days
Weighted Average Exercise Price		$ 13.36
Number Exercisable		100,551
Weighted Average Exercise Price		$ 13.36
Range of Exercise Prices Three [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 14.52
Range of Exercise Price, Maximum		$ 14.52
Number Outstanding		164,442
Options Outstanding Weighted Average Remaining Contractual Life		2 years 3 months 5 days
Weighted Average Exercise Price		$ 14.52
Number Exercisable		164,442
Weighted Average Exercise Price		$ 14.52
Range of Exercise Prices Four [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 14.54
Range of Exercise Price, Maximum		$ 22.20
Number Outstanding		182,584
Options Outstanding Weighted Average Remaining Contractual Life		3 years 7 months 17 days
Weighted Average Exercise Price		$ 19.17
Number Exercisable		113,901
Weighted Average Exercise Price		$ 19.54
Range of Exercise Prices Five [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 22.86
Range of Exercise Price, Maximum		$ 22.86
Number Outstanding		194,508
Options Outstanding Weighted Average Remaining Contractual Life		5 years 1 month 3 days
Weighted Average Exercise Price		$ 22.86
Number Exercisable		79,614
Weighted Average Exercise Price		$ 22.86
Range of Exercise Prices Six [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 24.00
Range of Exercise Price, Maximum		$ 25.99
Number Outstanding		199,546
Options Outstanding Weighted Average Remaining Contractual Life		2 years 7 months 28 days
Weighted Average Exercise Price		$ 24.75
Number Exercisable		153,876
Weighted Average Exercise Price		$ 24.46
Range of Exercise Prices Seven [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 26.59
Range of Exercise Price, Maximum		$ 33.48
Number Outstanding		264,971
Options Outstanding Weighted Average Remaining Contractual Life		4 years 3 months 17 days
Weighted Average Exercise Price		$ 31.19
Number Exercisable		156,756
Weighted Average Exercise Price		$ 31.05
Range of Exercise Prices Eight [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 33.72
Range of Exercise Price, Maximum		$ 35.96
Number Outstanding		121,445
Options Outstanding Weighted Average Remaining Contractual Life		6 years 1 month 5 days
Weighted Average Exercise Price		$ 35.01
Number Exercisable		13,680
Weighted Average Exercise Price		$ 34.34
Range of Exercise Prices Nine [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 37.08
Range of Exercise Price, Maximum		$ 37.08
Number Outstanding		34,500
Options Outstanding Weighted Average Remaining Contractual Life		6 years 10 months 3 days
Weighted Average Exercise Price		$ 37.08
Number Exercisable		0
Weighted Average Exercise Price		$ 0.00
Range of Exercise Prices Ten [Member]
Summary of information about stock options outstanding
Range of Exercise Price, Minimum		$ 43.35
Range of Exercise Price, Maximum		$ 43.35
Number Outstanding		54,393
Options Outstanding Weighted Average Remaining Contractual Life		6 years 2 months 10 days
Weighted Average Exercise Price		$ 43.35
Number Exercisable		0
Weighted Average Exercise Price		$ 0.00

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Summary of Significant Accounting Policies (Details Textual) (USD $) Share data in Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014 customer	Dec. 28, 2013 customer	Dec. 29, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Capitalized Computer Software, Gross	$ 8,200,000	$ 8,200,000
Summary of Significant Accounting Policies (Additional Textual) [Abstract]
Number of customers with accounts receivable balance greater than 10% of total receivables	2	2
Percentage of receivables held by two customers	32.00%	37.00%
Minimum percentage help by each customer with an accounts receivable balance greater than 10% of the total accounts receivable balance	10.00%	10.00%
Advertising cost	46,100,000	38,200,000	34,900,000
Potentially diluted shares of common stock	0.2	0.7	0.8
Deferred Tax Assets, Valuation Allowance	$ 0	$ 2,090,000	$ 2,691,000	$ 0
Government Contracts Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration Risk, Percentage	4.30%	6.20%	15.10%
Customer Concentration Risk [Member] | Government Contracts Concentration Risk [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration Risk, Percentage	4.30%	6.20%	15.10%
Customer Concentration Risk [Member] | International distributors of home robots products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration Risk, Percentage	29.80%	33.20%	30.60%

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Stock Options Plans and Stock-Based Compensation (Tables)

12 Months Ended

Dec. 27, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Activities relating to restricted stock awards

The table below summarizes activity relating to restricted stock units:

	Number of Shares Underlying Restricted Stock		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011	607,505		$	22.77
Granted	685,529		24.62
Vested	(204,053	)	21.24
Forfeited	(147,951	)	25.07
Outstanding at December 29, 2012	941,030		$	24.09
Granted	521,056		25.87
Vested	(348,141	)	22.57
Forfeited	(186,291	)	24.91
Outstanding at December 28, 2013	927,654		$	25.50
Granted	372,159		38.25
Vested	(318,367	)	25.38
Forfeited	(71,591	)	28.42
Outstanding at December 27, 2014	909,855		$	30.53

Summary of stock option plan activity

The table below summarizes stock option plan activity:

	Number of Shares		Weighted Average Exercise Price		Weighted  Average Remaining Contractual Term	Aggregate Intrinsic Value(1)
Outstanding at December 31, 2011	2,561,292		$	17.17
Granted	547,948		19.70
Exercised	(390,956	)	11.07
Canceled	(214,617	)	21.91
Outstanding at December 29, 2012	2,503,667		$	18.27
Granted	293,325		24.60
Exercised	(840,951	)	16.21
Canceled	(185,666	)	22.16
Outstanding at December 28, 2013	1,770,375		$	19.89
Granted	233,181		37.10
Exercised	(486,252	)	18.39
Canceled	(43,984	)	27.17
Outstanding at December 27, 2014	1,473,320		$	22.89	3.87 years	$18.2 million
Vested and expected to vest at December 27, 2014	1,419,559		$	22.61	3.79 years	$17.8 million
Exercisable as of December 27, 2014	917,340		$	19.32	2.82 years	$14.2 million
Weighted average fair value of options granted during the fiscal year ended December 27, 2014			$	15.87
Options available for future grant at December 27, 2014	4,762,446

 _________________________

(1) The aggregate intrinsic value on the table was calculated based upon the positive difference between the closing market value of the Company’s stock on December 27, 2014 of $34.81 and the exercise price of the underlying option.

Summary of information about stock options outstanding

The following table summarizes information about stock options outstanding at December 27, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted Average Remaining Contractual Life	Weighted  Average Exercise Price		Number Exercisable	Weighted Average Exercise Price
$  3.54 - $ 7.76	156,380	3.68 years	$	6.08	134,520	$	6.29
8.10 - 14.13	100,551	1.10	13.36		100,551	13.36
14.52 - 14.52	164,442	2.26	14.52		164,442	14.52
14.54 - 22.20	182,584	3.63	19.17		113,901	19.54
22.86 - 22.86	194,508	5.09	22.86		79,614	22.86
24.00 - 25.99	199,546	2.66	24.75		153,876	24.46
26.59 - 33.48	264,971	4.30	31.19		156,756	31.05
33.72 - 35.96	121,445	6.10	35.01		13,680	34.34
37.08 - 37.08	34,500	6.84	37.08		—	—
43.35 -  43.35	54,393	6.19	43.35		—	—
$ 3.54 -  $43.35	1,473,320	3.87 years	$	22.89	917,340	$	19.32

Activities relating to restricted stock units

The table below summarizes activity relating to restricted stock units:

	Number of Shares Underlying Restricted Stock		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011	607,505		$	22.77
Granted	685,529		24.62
Vested	(204,053	)	21.24
Forfeited	(147,951	)	25.07
Outstanding at December 29, 2012	941,030		$	24.09
Granted	521,056		25.87
Vested	(348,141	)	22.57
Forfeited	(186,291	)	24.91
Outstanding at December 28, 2013	927,654		$	25.50
Granted	372,159		38.25
Vested	(318,367	)	25.38
Forfeited	(71,591	)	28.42
Outstanding at December 27, 2014	909,855		$	30.53

Restricted Stock [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Activities relating to restricted stock awards

Activities relating to restricted stock units

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Income Taxes (Tables)

12 Months Ended

Dec. 27, 2014

Valuation and Qualifying Accounts Disclosure [Line Items]

Components of income tax expense

The components of income tax expense were as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Current
Federal	$	15,128		$	6,363		$	12,540
State	129			1,124			473
Foreign	91			41			(8		)
Total current tax provision	15,348			7,528			13,005
Deferred
Federal	1,268			(2,026		)	(4,003		)
State	(2,010		)	(728		)	(692		)
Total deferred tax provision	(742		)	(2,754		)	(4,695		)
Total income tax provision	$	14,606		$	4,774		$	8,310

Components of net deferred tax assets

The components of net deferred tax assets were as follows:

	December 27, 2014		December 28, 2013
	(In thousands)
Net deferred tax assets
Current deferred tax assets
Reserves and accruals	$	18,568	$	18,554
Stock-based compensation	767		556
Net operating loss carryforwards	2,470		2,470
Foreign tax credits	148		105
Valuation allowance	—		(1,100		)
Total current deferred tax assets	21,953		20,585
Non-current deferred tax assets
Reserves and accruals	586		715
Tax credits	5,927		5,737
Property and equipment	178		1,308
Stock-based compensation	5,011		4,957
Net operating loss carryforwards	3,879		6,587
Valuation allowance	—		(990		)
Total non-current deferred tax assets	15,581		18,314
Current deferred tax liabilities
Prepaids	448		441
Total current deferred tax liabilities	448		441
Non-current deferred tax liabilities
Intangible assets	7,172		8,219
Total non-current deferred tax liabilities	7,172		8,219
Total net deferred tax assets	$	29,914	$	30,239

Valuation allowance deferred tax assets

The table below summarizes activity relating to the valuation allowance:

Fiscal Year Ended	Balance at beginning  of period		Additions Charged to Costs and Expenses	Additions Charged to Goodwill	Deductions	Balance at End of Period
	(In thousands)
December 29, 2012	$	—	—	2,691	—	$	2,691
December 28, 2013	$	2,691	—	—	601	$	2,090
December 27, 2014	$	2,090	—	—	2,090	$	—

Reconciliation of the expected tax (benefit) expense

The reconciliation of the expected tax (benefit) expense (computed by applying the federal statutory rate to income before income taxes) to actual tax expense was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Expected federal income tax	$	18,344		$	11,345		$	8,962
Miscellaneous permanent items	691			405			338
State taxes (net of federal benefit)	1,058			867			497
Federal and state credits	(1,487		)	(3,909		)	(418		)
Change in valuation allowance	(2,090		)	—			—
Domestic production activities deduction	(1,562		)	(1,168		)	(1,100		)
Settlement of uncertain tax positions	(176		)	(2,696		)	—
Other	(172		)	(70		)	31
	$	14,606		$	4,774		$	8,310

Schedule of adjustments to uncertain tax position

A summary of the Company’s adjustments to its gross unrecognized tax benefits, inclusive of interest, in the current year is as follows:

	Fiscal Year Ended
	December 27, 2014
Balance at beginning of period	$	2,618
Increase for tax positions related to the current year	252
Decrease for tax positions related to prior years	(108		)
Decreases for settlements with applicable taxing authorities	(271		)
Decreases for lapses of statute of limitations	—
Balance at end of period	$	2,491

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Nature of the Business

12 Months Ended

Dec. 27, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of the Business

1. Nature of the Business

iRobot Corporation (“iRobot” or the “Company”) develops robotics and artificial intelligence technologies and applies these technologies in producing and marketing robots. The majority of the Company’s revenue is generated from product sales and, to a lesser extent, government and commercial research and development contracts.

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 27, 2014

Commitments and Contingencies Disclosure [Abstract]

Summary of future minimum rental payments under operating leases

Future minimum rental payments under operating leases were as follows as of December 27, 2014:

	Operating Leases
2015	$	3,460
2016	2,670
2017	2,383
2018	2,383
2019	2,383
Thereafter	794
Total minimum lease payments	$	14,073

Activity related to the warranty accrual

Activity related to the warranty accrual was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	6,497		$	6,057		$	10,306
Provision (*)	6,410			1,744			(1,682		)
Warranty usage(**)	(5,138		)	(1,304		)	(2,567		)
Balance at end of period	$	7,769		$	6,497		$	6,057

 __________________________________

(*) During 2012, the Company recorded favorable adjustments relating to reductions in its international warranty accrual for our home robots business related to our sustained improvements in product quality, resulting in a net credit for its 2012 warranty provision.

(**) Warranty usage includes costs incurred for warranty obligations.

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Summary of Significant Accounting Policies (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Inventory Valuation Allowance [Roll Forward]
Balance at beginning of period	$ 5,280	$ 6,608	$ 2,568
Valuation Allowances and Reserves, Charged to Cost and Expense	1,045	1,571	5,101
Valuation Allowances and Reserves, Deductions	2,090	601	0
Balance at end of period	$ 5,251	$ 5,280	$ 6,608

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Common Stock Stock repurchase (Details) (USD $)	12 Months Ended
	Dec. 27, 2014
Stock repurchase [Abstract]
Stock Repurchase Program, Authorized Amount	$ 50,000,000
Stock Repurchase Program Commencement Date	May 01, 2014
Stock Repurchase Program Expiration Date	Apr. 30, 2015
Stock Repurchased and Retired During Period, Shares	55,973
Stock Repurchased During Period, Value	$ 1,678,000

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Goodwill and other intangible assets (Details 1) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 27, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of Intangible Assets, Finite-lived	$ 1,800,000
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
2013		3,482,000
2014		3,457,000
2015		3,457,000
2016		3,457,000
2017		2,818,000
Total		$ 16,671,000

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 185,957	$ 165,404
Short term investments	36,166	21,954
Accounts receivable, net of allowance of $67 at December 27, 2014 and December 28, 2013	71,056	39,348
Unbilled revenue	2,614	856
Inventory	47,857	46,107
Deferred tax assets	21,505	20,144
Other current assets	9,704	6,848
Total current assets	374,859	300,661
Property and equipment, net	31,297	23,661
Deferred tax assets	8,409	10,095
Goodwill	48,751	48,751
Intangible assets, net	19,146	22,668
Other assets	10,751	10,501
Total assets	493,213	416,337
Current liabilities:
Accounts payable	60,256	41,344
Accrued expenses	18,701	14,880
Accrued compensation	16,235	19,606
Deferred Revenue, Current	3,849	5,085
Total current liabilities	99,041	80,915
Long term liabilities	3,736	4,733
Commitments and contingencies (Note 11):
Redeemable convertible preferred stock, 5,000,000 shares authorized and no shares issued or outstanding	0	0
Common stock, $0.01 par value, 100,000,000 shares authorized; and 29,644,602 and 28,935,253 shares issued and outstanding at December 27, 2014 and December 28, 2013, respectively	297	289
Additional paid-in capital	249,409	227,175
Retained earnings	140,881	103,078
Accumulated other comprehensive income	(151)	147
Total stockholders’ equity	390,436	330,689
Total liabilities, redeemable convertible preferred stock and stockholders’ equity	$ 493,213	$ 416,337

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Summary of Significant Accounting Policies (Details Texutal - Property Plant And Equipment) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Property Plant And Equipment [Line Items]
Capitalized Computer Software, Gross	$ 8.2	$ 8.2
Maximum [Member]
Property Plant And Equipment [Line Items]
Operating and Reporting Period	371 days
Minimum [Member]
Property Plant And Equipment [Line Items]
Operating and Reporting Period	364 days
Software and Software Development Costs [Member]
Property Plant And Equipment [Line Items]
Amortization Expense	$ 0.8	$ 0.9	$ 1.0

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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2011	$ 242,958	$ 272	$ 184,395	$ 58,140	$ 151
Beginning balance, shares at Dec. 31, 2011		27,216,555
Issuance of common stock for exercise of stock options, shares	390,956	390,956
Issuance of common stock for exercise of stock options, value	4,326	4	4,322
Vesting of restricted stock units, shares		204,053
Vesting of restricted stock units, value	0
Tax benefit of excess stock based compensation deduction	902		902
Deferred Compensation Arrangement with Individual, Compensation Expense	10,983		10,983
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units, shares		(30,728)
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units, value	(784)		(784)
Unrealized gain on short term investment	48				48
Director's deferred compensation	87		87
Net income (loss)	17,297			17,297
Ending balance at Dec. 29, 2012	275,817	278	199,903	75,437	199
Ending balance, shares at Dec. 29, 2012		27,781,659
Issuance of common stock for exercise of stock options, shares	840,951	840,951
Issuance of common stock for exercise of stock options, value	13,629	8	13,621
Vesting of restricted stock units, shares		348,141
Vesting of restricted stock units, value	0	(3)	(3)
Tax benefit of excess stock based compensation deduction	1,413		1,413
Deferred Compensation Arrangement with Individual, Compensation Expense	13,409		13,409
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units, shares		(45,278)
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units, value	(1,212)		(1,212)
Unrealized gain on short term investment	(52)				(52)
Director's deferred compensation	44		44
Net income (loss)	27,641			27,641
Ending balance at Dec. 28, 2013	330,689	289	227,175	103,078	147
Ending balance, shares at Dec. 28, 2013	28,935,253	28,935,253
Issuance of common stock for exercise of stock options, shares	486,252	486,252
Issuance of common stock for exercise of stock options, value	8,943	5	8,938
Vesting of restricted stock units, shares		318,367
Vesting of restricted stock units, value	0	(3)	(3)
Tax benefit of excess stock based compensation deduction	2,776		2,776
Amortization of deferred compensation relating to stock options	13,778
Deferred Compensation Arrangement with Individual, Compensation Expense			13,778
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units, shares		(39,297)
Stock withheld to cover tax withholdings requirements upon vesting of restricted stock units, value	(1,626)		(1,626)
Unrealized gain on short term investment	(298)				(298)
Director's deferred compensation	49		49
Stock Repurchased and Retired During Period, Shares	(55,973)
Stock Repurchased and Retired During Period, Value	(1,678)		(1,678)
Net income (loss)	37,803			37,803
Ending balance at Dec. 27, 2014	$ 390,436	$ 297	$ 249,409	$ 140,881	$ (151)
Ending balance, shares at Dec. 27, 2014	29,644,602	29,644,602

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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Current
Federal	$ 15,128	$ 6,363	$ 12,540
State	129	1,124	473
Foreign	91	41	(8)
Total current tax provision	15,348	7,528	13,005
Deferred
Federal	1,268	(2,026)	(4,003)
State	(2,010)	(728)	(692)
Deferred Income Tax Expense (Benefit)	(742)	(2,754)	(4,695)
Total income tax provision	$ 14,606	$ 4,774	$ 8,310

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Restructuring Charges Restructuring Charges (Tables)

12 Months Ended

Dec. 27, 2014

Restructuring and Related Activities [Abstract]

Restructuring reserve roll forward

The activity for the restructuring programs is presented below:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	675		$	197		$	—
Charges	—			3,296			3,679
Utilization	(675		)	(2,818		)	(3,482		)
Balance at end of period	$	—		$	675		$	197

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Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014
Summary of future minimum rental payments under operating leases
2013	$ 3,460
2014	2,670
2015	2,383
2016	2,383
2017	2,383
Thereafter	794
Total minimum lease payments	$ 14,073

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Restructuring Charges

12 Months Ended

Dec. 27, 2014

Restructuring and Related Activities [Abstract]

Restructuring Charges

15. Restructuring charges

In 2013 and 2012, the Company incurred restructuring charges of $3.3 million, and $3.7 million, respectively. The restructuring charges incurred in 2013 primarily related to a $1.8 million write-down of an intangible asset, costs associated with the closing of its San Luis Obispo, California office and severance-related costs. The restructuring charges incurred in 2012 primarily consisted of cost reductions in its defense and security business unit, which resulted in workforce reductions and the write-off of certain inventory and fixed assets.

The activity for the restructuring programs is presented below:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	675		$	197		$	—
Charges	—			3,296			3,679
Utilization	(675		)	(2,818		)	(3,482		)
Balance at end of period	$	—		$	675		$	197

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Industry Segment, Geographic Information and Significant Customers (Tables)

12 Months Ended

Dec. 27, 2014

Segment Reporting [Abstract]

Concentration Risk Disclosure [Text Block]

Concentration of Credit Risk and Significant Customers

Financial instruments which potentially expose the Company to concentrations of credit risk consist of accounts receivable. Management believes its credit policies are prudent and reflect normal industry terms and business risk. At December 27, 2014, two customers accounted for a total of 32% of the Company's accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. At December 28, 2013, two customers accounted for a total of 37% of the Company’s accounts receivable balance, each of which was greater than 10% of the balance and each of whom secured their balance with guaranteed letters of credit. For the years ended December 27, 2014, December 28, 2013 and December 29, 2012, revenue from U.S. federal government orders, contracts and subcontracts, represented 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, the Company generated an aggregate of 29.8%, 33.2% and 30.6%, respectively, of total revenue from its home robots distributor in Japan and a network of affiliated European distributors of its home robots.

The Company maintains its cash in bank deposit accounts at high quality financial institutions. The individual balances, at times, may exceed federally insured limits.

Geographic Information

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, sales to non-U.S. customers accounted for 60.9%, 59.5% and 57.3% of total revenue, respectively.

Significant Customers

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, U.S. federal government orders, contracts and subcontracts accounted for 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 approximately 75.7%, 75.3% and 75.4%, respectively, of our home robot product revenue resulted from sales to 15 customers. For the fiscal years ended December 27, 2014 and December 28, 2013, the Company generated an aggregate of 29.8% and 33.2%, respectively, of its total revenue from its home robots distributor in Japan (Sales on Demand Corporation) and a network of affiliated European distributors of the Company's home robots.

Segment information about revenue, cost of revenue, gross margin and income before income taxes

The Company’s other revenue and cost of revenue result from other smaller business units that do not meet the criteria of a

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Quarterly Information (Unaudited)

12 Months Ended

Dec. 27, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Information (Unaudited)

17. Quarterly Information (Unaudited)

	Fiscal Quarter Ended
	March 30, 2013		June 29, 2013		September 28, 2013		December 28, 2013		March 28, 2014		June 28, 2014		September 27, 2014		December 27, 2014
	(In thousands, except per share amounts)
Revenue	$	106,195	$	130,362	$	124,501	$	126,343	$	114,204	$	139,803	$	143,497	$	159,342
Gross margin	46,558		61,605		54,061		58,930		51,710		62,121		67,889		76,335
Net income (loss)	8,355		8,294		7,804		3,188		5,280		8,530		14,607		9,386
Diluted earnings (loss) per share	$	0.29	$	0.28	$	0.26	$	0.11	$	0.18	$	0.28	$	0.48	$	0.31

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Employee Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 1.7	$ 1.5	$ 1.7
Employee Benefits (Textual) [Abstract]
Employer contribution to retirement plan	The employer contribution represents a matching contribution at a rate of 50% of each employee’s first six percent contribution. Accordingly, each employee participating during Plan-Year 2014, is entitled up to a maximum of three percent of his or her eligible annual payroll.
Rate of contribution made by the employer	50.00%
Employee rate at which matching contribution made by employer	6.00%
Maximum rate entitled to each employee under all the plans	3.00%

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Cash flows from operating activities:
Net income, as reported	$ 37,803	$ 27,641	$ 17,297
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,049	12,169	11,672
Loss on disposal of property and equipment	246	189	1,332
Goodwill and Intangible Asset Impairment	0	1,988	0
Stock-based compensation	13,778	13,409	10,983
Increase (Decrease) in Deferred Income Taxes	3,101	(768)	(3,763)
Tax benefit of excess stock based compensation deductions	(3,051)	(2,406)	(1,445)
Non-cash director deferred compensation	49	44	87
Changes in operating assets and liabilities — (use) source
Accounts receivable	(31,708)	(9,935)	15,560
Unbilled revenue	(1,758)	340	1,166
Inventory	(2,387)	(9,365)	(807)
Other assets	(2,856)	1,980	(2,892)
Accounts payable	16,249	(1,743)	(8,684)
Accrued expenses	3,695	1,255	(656)
Accrued compensation	(3,371)	7,751	(6,106)
Deferred revenue	(1,236)	(1,172)	4,730
Long term liabilities	(997)	515	(613)
Net cash provided by operating activities	40,606	41,892	37,861
Cash flows from investing activities:
Additions of property and equipment	(13,774)	(6,829)	(6,770)
Payments for (Proceeds from) Other Investing Activities	(250)	(2,000)	(6,000)
Purchase of Evolution Robotics, Inc., net of cash received	0	0	(74,530)
Purchase of investments	(31,219)	(17,946)	(5,086)
Sales of investments	16,500	8,044	10,000
Proceeds from Sale of Other Productive Assets	0	650	0
Net cash used in investing activities	(28,743)	(18,081)	(82,386)
Cash flows from financing activities:
Payments Related to Tax Withholding for Share-based Compensation	(1,626)	(1,212)	(784)
Proceeds from stock option exercises	8,943	13,629	4,326
Payments for Repurchase of Common Stock	(1,678)	0	0
Tax benefit of excess stock based compensation deductions	3,051	2,406	1,445
Net cash provided by financing activities	8,690	14,823	4,987
Net increase (decrease) in cash and cash equivalents	20,553	38,634	(39,538)
Cash and cash equivalents, at beginning of period	165,404	126,770	166,308
Cash and cash equivalents, at end of period	185,957	165,404	126,770
Supplemental disclosure of cash flow information
Cash paid for income taxes	15,508	7,235	11,663
Noncash investing activity, transfer of inventory to property and equipment	$ 637	$ 223	$ 0

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Net allowances on Accounts receivable	$ 67	$ 67
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	29,644,602	28,935,253
Common stock, shares outstanding	29,644,602	28,935,253

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Income Taxes

12 Months Ended

Dec. 27, 2014

Income Tax Disclosure [Abstract]

Income Taxes

10. Income Taxes

The components of income tax expense were as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Current
Federal	$	15,128		$	6,363		$	12,540
State	129			1,124			473
Foreign	91			41			(8		)
Total current tax provision	15,348			7,528			13,005
Deferred
Federal	1,268			(2,026		)	(4,003		)
State	(2,010		)	(728		)	(692		)
Total deferred tax provision	(742		)	(2,754		)	(4,695		)
Total income tax provision	$	14,606		$	4,774		$	8,310

In certain jurisdictions, an immaterial provision has been made for deferred taxes on undistributed earnings of non-U.S. subsidiaries that the Company expects to distribute in 2015. In other jurisdictions, for the remaining undistributed earnings of non-U.S. subsidiaries, no provision has been made for deferred taxes as these earnings have been indefinitely reinvested. As of December 27, 2014, a deferred tax liability has not been established for approximately $0.6 million of cumulative undistributed earnings of non-U.S. subsidiaries, as the Company plans to keep these amounts permanently reinvested overseas. The amount of any unrecognized deferred tax liability on these undistributed earnings would be immaterial.

The components of net deferred tax assets were as follows:

	December 27, 2014		December 28, 2013
	(In thousands)
Net deferred tax assets
Current deferred tax assets
Reserves and accruals	$	18,568	$	18,554
Stock-based compensation	767		556
Net operating loss carryforwards	2,470		2,470
Foreign tax credits	148		105
Valuation allowance	—		(1,100		)
Total current deferred tax assets	21,953		20,585
Non-current deferred tax assets
Reserves and accruals	586		715
Tax credits	5,927		5,737
Property and equipment	178		1,308
Stock-based compensation	5,011		4,957
Net operating loss carryforwards	3,879		6,587
Valuation allowance	—		(990		)
Total non-current deferred tax assets	15,581		18,314
Current deferred tax liabilities
Prepaids	448		441
Total current deferred tax liabilities	448		441
Non-current deferred tax liabilities
Intangible assets	7,172		8,219
Total non-current deferred tax liabilities	7,172		8,219
Total net deferred tax assets	$	29,914	$	30,239

As of December 28, 2013, the Company maintained a valuation allowance of $2.1 million related to certain state tax attributes from the Evolution Robotics, Inc. acquisition. During the year ended December 27, 2014, this valuation allowance was released when realization of these state tax attributes became more likely than not.

The table below summarizes activity relating to the valuation allowance:

Fiscal Year Ended	Balance at beginning  of period		Additions Charged to Costs and Expenses	Additions Charged to Goodwill	Deductions	Balance at End of Period
	(In thousands)
December 29, 2012	$	—	—	2,691	—	$	2,691
December 28, 2013	$	2,691	—	—	601	$	2,090
December 27, 2014	$	2,090	—	—	2,090	$	—

The net deferred tax assets after valuation allowance as of December 27, 2014 and December 28, 2013 were $29.9 million and $30.2 million, respectively.

The Company has federal and state net operating loss carryforwards of $34.5 million and $45.0 million as of December 27, 2014 and December 28, 2013, respectively, which expire from 2028 to 2032. The Company has federal and state research and development credit carryforwards of $9.1 million and $8.9 million as of December 27, 2014 and December 28, 2013, respectively, which expire from 2022 to 2029. The Company has state investment tax credit carryforwards of $0.7 million and $0.6 million as of December 27, 2014 and December 28, 2013, respectively, which expire from 2015 to 2024. Under the Internal Revenue Code, certain substantial changes in the Company’s ownership could result in an annual limitation on the amount of these tax carryforwards which can be utilized in future years. As of December 27, 2014, the Company has $34.5 million of net operating loss carryforwards and $2.2 million of federal and state research and development credits related to the acquisition of Evolution Robotics that are limited by Section 382 and Section 383, respectively, of the Internal Revenue Code. However, these limitations are not expected to cause any of these net operating loss carryforwards or federal and state research and development credits to expire unused.

The reconciliation of the expected tax (benefit) expense (computed by applying the federal statutory rate to income before income taxes) to actual tax expense was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Expected federal income tax	$	18,344		$	11,345		$	8,962
Miscellaneous permanent items	691			405			338
State taxes (net of federal benefit)	1,058			867			497
Federal and state credits	(1,487		)	(3,909		)	(418		)
Change in valuation allowance	(2,090		)	—			—
Domestic production activities deduction	(1,562		)	(1,168		)	(1,100		)
Settlement of uncertain tax positions	(176		)	(2,696		)	—
Other	(172		)	(70		)	31
	$	14,606		$	4,774		$	8,310

A summary of the Company’s adjustments to its gross unrecognized tax benefits, inclusive of interest, in the current year is as follows:

	Fiscal Year Ended
	December 27, 2014
Balance at beginning of period	$	2,618
Increase for tax positions related to the current year	252
Decrease for tax positions related to prior years	(108		)
Decreases for settlements with applicable taxing authorities	(271		)
Decreases for lapses of statute of limitations	—
Balance at end of period	$	2,491

The Company accrues interest and, if applicable, penalties for any uncertain tax positions. Interest and penalties are classified as a component of income tax expense. As of December 27, 2014, December 28, 2013 and December 29, 2012, there were no material accrued interest or penalties. Over the next twelve months it is reasonably possible that the Company may recognize approximately $0.2 million of previously net unrecognized tax benefits related to U.S. federal, state and foreign tax audits and expiration of the statute of limitations. If all of our unrecognized tax benefits as of December 27, 2014 were to become recognizable in the future, we would record a $1.9 million benefit to the income tax provision, reflective of federal benefit on state items.

Included in the Company’s state tax credit carryforwards are unrecognized tax benefits related to stock-based compensation beginning from January 1, 2006 of $0.5 million and $0.5 million as of December 27, 2014 and December 28, 2013, respectively. Included in the Company's state net operating loss carryforwards are unrecognized tax benefits related to stock-based compensation beginning from January 1, 2006 of $0.7 million and $0 as of December 27, 2014 and December 28, 2013, respectively. These unrecognized tax benefits will be credited to additional paid-in capital when they reduce income taxes payable. Therefore, these amounts were not included in the Company’s gross or net deferred tax assets at December 27, 2014 and December 28, 2013.

The Company follows the with and without approach for direct and indirect effects of windfall tax deductions.

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Document and Entity Information (USD $)	12 Months Ended
	Dec. 27, 2014	Feb. 09, 2015	Jun. 28, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	IROBOT CORP
Entity Central Index Key	0001159167
Document Type	10-K
Document Period End Date	Dec. 27, 2014
Amendment Flag	false
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-27
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,160,000,000
Entity Common Stock, Shares Outstanding		29,672,165

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Commitments and Contingencies

12 Months Ended

Dec. 27, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

11. Commitments and Contingencies

Legal

From time to time and in the ordinary course of business, the Company is subject to various claims, charges and litigation. The outcome of litigation cannot be predicted with certainty and some lawsuits, claims or proceedings may be disposed of unfavorably to us, which could materially affect the Company's financial condition or results of operations.

Lease Obligations

The Company leases its facilities. Rental expense under operating leases for fiscal 2014, 2013 and 2012 amounted to $4.8 million, $5.3 million, and $4.4 million, respectively. Future minimum rental payments under operating leases were as follows as of December 27, 2014:

	Operating Leases
2015	$	3,460
2016	2,670
2017	2,383
2018	2,383
2019	2,383
Thereafter	794
Total minimum lease payments	$	14,073

Outstanding Purchase Orders

At December 27, 2014, we had outstanding purchase orders aggregating approximately $78.1 million. The purchase orders, the majority of which are with our contract manufacturers for the purchase of inventory in the normal course of business, are for manufacturing and non-manufacturing related goods and services, and are generally cancelable without penalty.  In circumstances where we determine that we have financial exposure associated with any of these commitments, we record a liability in the period in which that exposure is identified.

Guarantees and Indemnification Obligations

The Company enters into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company indemnifies and agrees to reimburse the indemnified party for losses incurred by the indemnified party, generally the Company’s customers, in connection with any patent, copyright, trade secret or other proprietary right infringement claim by any third party. The term of these indemnification agreements is generally perpetual any time after execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited. The Company has never incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the estimated fair value of these agreements is minimal. Accordingly, the Company has no liabilities recorded for these agreements as of December 27, 2014 and December 28, 2013, respectively.

Government Contract Contingencies

Several of the Company’s prime contracts with the U.S. federal government do not contain a limitation of liability provision, creating a risk of responsibility for direct and consequential damages. Several subcontracts with prime contractors hold the prime contractor harmless against liability that stems from our work and do not contain a limitation of liability. These provisions could cause substantial liability for the Company. In addition, the Company is subject to audits by the U.S. federal government as part of routine audits of government contracts. As part of an audit, these agencies may review the Company’s performance on contracts, cost structures and compliance with applicable laws, regulations and standards. If any of its costs are found to be allocated improperly to a specific contract, the costs may not be reimbursed and any costs already reimbursed for such contract may have to be refunded. Accordingly, an audit could result in a material adjustment to our revenue and results of operations. Annually, the Company submits final indirect billing rates to DCMA based upon actual costs incurred throughout the year. These final billing rates are subject to audit by DCAA. As of December 27, 2014, fiscal years 2012 through 2014 are open for audit by DCAA.

Warranty

The Company provides warranties on most products and has established a reserve for warranty based on estimated warranty costs. The reserve is included as part of accrued expenses (Note 6) in the accompanying consolidated balance sheets.

Activity related to the warranty accrual was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	6,497		$	6,057		$	10,306
Provision (*)	6,410			1,744			(1,682		)
Warranty usage(**)	(5,138		)	(1,304		)	(2,567		)
Balance at end of period	$	7,769		$	6,497		$	6,057

 __________________________________

(*) During 2012, the Company recorded favorable adjustments relating to reductions in its international warranty accrual for our home robots business related to our sustained improvements in product quality, resulting in a net credit for its 2012 warranty provision.

(**) Warranty usage includes costs incurred for warranty obligations.

Sales Taxes

The Company collects and remits sales tax in jurisdictions in which it has a physical presence or it believes nexus exists, which therefore obligates the Company to collect and remit sales tax. The Company continually evaluates whether it has established a nexus in new jurisdictions with respect to sales tax. The Company has recorded a liability for potential exposure in several states where there is uncertainty about the point in time at which the Company established a sufficient business connection to create nexus. The Company continues to analyze possible sales tax exposure, but does not currently believe that any individual claim or aggregate claims that might arise will ultimately have a material effect on its consolidated results of operations, financial position or cash flows.

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Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Revenue	$ 556,846		$ 487,401		$ 436,244
Cost of revenue	298,791		266,247		241,896
Gross margin	258,055		221,154		194,348
Operating expenses:
Research and development(1)	69,408	[1]	63,649	[1]	57,066	[1]
Selling and marketing(1)	86,091	[1]	71,529	[1]	66,412	[1]
General and administrative(1)	49,439	[1]	53,358	[1]	45,698	[1]
Total operating expenses	204,938		188,536		169,176
Operating income	53,117		32,618		25,172
Other income (expense), net	(708)		(203)		435
Income before income taxes	52,409		32,415		25,607
Income tax expense	14,606		4,774		8,310
Net income	37,803		27,641		17,297
Net income per share
Basic (Dollar per share)	$ 1.28		$ 0.97		$ 0.63
Diluted (Dollars per share)	$ 1.25		$ 0.94		$ 0.61
Number of shares used in per share calculations
Basic (In shares)	29,485		28,495		27,577
Diluted (In shares)	30,210		29,354		28,301
Stock-based compensation recorded breaks down by expense classification as follows:
Stock-based compensation	13,778		13,409		10,983
Cost of revenue
Stock-based compensation recorded breaks down by expense classification as follows:
Stock-based compensation	865		700		889
Research and development
Stock-based compensation recorded breaks down by expense classification as follows:
Stock-based compensation	3,359		2,700		1,904
Selling and marketing
Stock-based compensation recorded breaks down by expense classification as follows:
Stock-based compensation	1,296		1,246		808
General and administrative
Stock-based compensation recorded breaks down by expense classification as follows:
Stock-based compensation	$ 8,258		$ 8,763		$ 7,382

[1] Stock-based compensation recorded in fiscal 2014, 2013 and 2012 breaks down by expense classification as follows: Fiscal Year Ended December 27, 2014 December 28, 2013 December 29, 2012 (In thousands)Cost of revenue$865 $700 $889Research and development3,359 2,700 1,904Selling and marketing1,296 1,246 808General and administrative8,258 8,763 7,382

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Other Assets

12 Months Ended

Dec. 27, 2014

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Assets

5. Other Assets

At December 27, 2014, other assets consisted of three investments totaling $10.8 million. At December 28, 2013, other assets consisted of two investments totaling $10.5 million. These investments are accounted for at cost. The Company regularly monitors these investments to determine if facts and circumstances have changed in a manner that would require a change in accounting methodology. Additionally, the Company regularly evaluates whether or not these investments have been impaired by considering such factors as economic environment, market conditions, operational performance and other specific factors relating to the businesses underlying the investments. If any such impairment is identified, a reduction in the carrying value of the investments would be recorded at that time. Since the Company believes the fair value of its investments is greater than the carrying value of its investments, it has not impaired these investments.

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Property and Equipment

12 Months Ended

Dec. 27, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

4. Property and Equipment

Property and equipment consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Computer and equipment	$	15,173	$	13,715
Furniture	2,297		1,845
Machinery	5,307		3,705
Tooling	18,614		12,228
Leasehold improvements	20,833		15,983
Business applications software	8,214		8,162
	70,438		55,638
Less: accumulated depreciation	39,141		31,977
	$	31,297	$	23,661

Depreciation expense for the years ended December 27, 2014, December 28, 2013 and December 29, 2012 was $9.2 million, $8.1 million, and $9.9 million, respectively.

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Industry Segment, Geographic Information and Significant Customers

12 Months Ended

Dec. 27, 2014

Segment Reporting [Abstract]

Industry Segment, Geographic Information and Significant Customers

16. Industry Segment, Geographic Information and Significant Customers

The Company operates in two reportable segments, the home robots business unit and the defense and security robots business unit. The nature of products and types of customers for the two segments vary significantly. As such, the segments are managed separately.

Home Robots

The Company’s home robots business unit offers products to consumers through a network of retail businesses throughout the United States, to various countries through international distributors and retailers, and through the Company’s on-line store. The Company’s home robots business unit includes mobile robots used in the maintenance of households.

Defense and Security Robots

The Company’s defense and security robots business unit offers products to the U.S. Department of Defense through a small U.S. government-focused sales force, and to other North American and international entities through small domestic and international sales teams, as well as through North American and international distributors. The Company’s defense and security robots are used to increase warfighters', law enforcement, security forces and first responders' safety and productivity.

Other

The Company’s other revenue and cost of revenue result from other smaller business units that do not meet the criteria of a reportable segment, as well as certain operational costs included in cost of revenue.

The table below presents segment information about revenue, cost of revenue, gross margin and income before income taxes:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Revenue:
Home Robots	$	507,414		$	427,853		$	356,805
Defense & Security Robots	45,502			50,003			70,948
Other	3,930			9,545			8,491
Total revenue	556,846			487,401			436,244
Cost of revenue:
Home Robots	251,095			217,011			174,756
Defense & Security Robots	24,409			24,975			40,468
Other	23,287			24,261			26,672
Total cost of revenue	298,791			266,247			241,896
Gross margin:
Home Robots	256,319			210,842			182,049
Defense & Security Robots	21,093			25,028			30,480
Other	(19,357		)	(14,716		)	(18,181		)
Total gross margin	258,055			221,154			194,348
Research and development	69,408			63,649			57,066
Selling and marketing	86,091			71,529			66,412
General and administrative	49,439			53,358			45,698
Other income (expense), net	(708		)	(203		)	435
Income before income taxes	$	52,409		$	32,415		$	25,607

As of December 27, 2014, goodwill of $41.0 million and purchased intangible assets, net of $19.1 million recorded in conjunction with the acquisition of Evolution Robotics, Inc. in October 2012 are directly associated with the home robots business unit. Goodwill of $7.7 million recorded in conjunction with the acquisition of Nekton in September 2008 is directly associated with the defense and security business unit. Other long lived assets are not directly attributable to individual business segments.

Geographic Information

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, sales to non-U.S. customers accounted for 60.9%, 59.5% and 57.3% of total revenue, respectively.

Significant Customers

For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, U.S. federal government orders, contracts and subcontracts accounted for 4.3%, 6.2% and 15.1% of total revenue, respectively. For the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 approximately 75.7%, 75.3% and 75.4%, respectively, of our home robot product revenue resulted from sales to 15 customers. For the fiscal years ended December 27, 2014 and December 28, 2013, the Company generated an aggregate of 29.8% and 33.2%, respectively, of its total revenue from its home robots distributor in Japan (Sales on Demand Corporation) and a network of affiliated European distributors of the Company's home robots.

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Employee Benefits

12 Months Ended

Dec. 27, 2014

Employee Benefits [Abstract]

Employee Benefits

12. Employee Benefits

The Company sponsors a retirement plan under Section 401(k) of the Internal Revenue Code (the “Retirement Plan”). All Company employees, with the exception of temporary, contract and international employees are eligible to participate in the Retirement Plan after satisfying age and length of service requirements prescribed by the plan. Under the Retirement Plan, employees may make tax-deferred contributions, and the Company, at its sole discretion, and subject to the limits prescribed by the IRS, may make either a nonelective contribution on behalf of all eligible employees or a matching contribution on behalf of all plan participants.

The Company elected to make a matching contribution of approximately $1.7 million, $1.5 million and $1.7 million for the plan years ended December 27, 2014, December 28, 2013 and December 29, 2012 (“Plan-Year 2014,” “Plan-Year 2013” and “Plan-Year 2012”), respectively. The employer contribution represents a matching contribution at a rate of 50% of each employee’s first six percent contribution. Accordingly, each employee participating during Plan-Year 2014, Plan-Year 2013 and Plan-Year 2012 is entitled up to a maximum of three percent of his or her eligible annual payroll. The employer matching contribution for Plan-Year 2014 is included in accrued compensation in the accompanying consolidated balance sheet.

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Common Stock

12 Months Ended

Dec. 27, 2014

Dividends, Common Stock [Abstract]

Common Stock

8. Common Stock

Common stockholders are entitled to one vote for each share held and to receive dividends if and when declared by the Board of Directors and subject to and qualified by the rights of holders of the preferred stock. Upon dissolution or liquidation of the Company, holders of common stock will be entitled to receive all available assets subject to any preferential rights of any then outstanding preferred stock.

On April 2, 2014, the Company announced a stock repurchase program. Under the program, the Company may purchase up to $50 million of its common stock from May 1, 2014 to April 30, 2015. Through December 27, 2014, the Company has repurchased 55,973 shares totaling $1.7 million in the open market under this stock repurchase plan.

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Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Current deferred tax assets
Deferred Tax Assets, Reserves and Accruals, current	$ 18,568	$ 18,554
Stock-based compensation	767	556
Net operating loss carryforwards	2,470	2,470
Foreign tax credits	148	105
Valuation allowance	0	(1,100)
Total current deferred tax assets	21,953	20,585
Non-current deferred tax assets
Reserves and accruals	586	715
Tax credits	5,927	5,737
Property and equipment	178	1,308
Stock-based compensation	5,011	4,957
Net operating loss carryforwards	3,879	6,587
Valuation allowance	0	(990)
Total non-current deferred tax assets	15,581	18,314
Current deferred tax liabilities
Deferred Tax Liabilities, Prepaid Expenses	448	441
Total current deferred tax liabilities	448	441
Non-current deferred tax liabilities
Intangible assets	7,172	8,219
Total non-current deferred tax liabilities	7,172	8,219
Total net deferred tax assets	$ 29,914	$ 30,239

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Accrued Expenses

12 Months Ended

Dec. 27, 2014

Accrued Liabilities, Current [Abstract]

Accrued Expenses

6. Accrued Expenses

Accrued expenses consist of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Accrued warranty	$	7,769	$	6,497
Accrued direct fulfillment costs	1,346		1,362
Accrued sales tax	867		831
Accrued customer deposits	702		103
Accrued rent	701		726
Accrued sales commissions	531		539
Accrued contractors	217		509
Accrued other	6,568		4,313
	$	18,701	$	14,880

Accrued compensation consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Accrued bonus	$	8,455	$	13,002
Accrued other compensation	7,780		6,604
	$	16,235	$	19,606

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Revolving Line of Credit

12 Months Ended

Dec. 27, 2014

Debt Disclosure [Abstract]

Revolving Line of Credit

7. Revolving Line of Credit

The Company has an unsecured revolving credit facility with Bank of America, N.A., which is available to fund working capital and other corporate purposes. As of December 27, 2014, the total amount available for borrowing under its credit facility was $75.0 million and the full amount was available for borrowing. The interest on loans under the credit facility will accrue, at the Company's election, at either (1) LIBOR plus a margin, currently equal to 1.0%, based on the Company's ratio of indebtedness to Adjusted EBITDA (the "Eurodollar Rate"), or (2) the lender's base rate. The lender's base rate is equal to the highest of (1) the federal funds rate plus 0.5%, (2) the lender's prime rate and (3) the Eurodollar Rate plus 1.0%. The credit facility will terminate and all amounts outstanding thereunder will be due and payable in full on December 20, 2018.

As of December 27, 2014, the Company had no borrowings under its revolving credit facility. This credit facility contains customary terms and conditions for credit facilities of this type, including restrictions on the Company's ability to incur or guaranty additional indebtedness, create liens, enter into transactions with affiliates, make loans or investments, sell assets, pay dividends or make distributions on, or repurchase, the Company's stock, and consolidate or merge with other entities.

In addition, the Company is required to meet certain financial covenants customary with this type of agreement, including maintaining a minimum ratio of indebtedness to Adjusted EBITDA and a minimum specified interest coverage ratio.

This credit facility contains customary events of default, including for payment defaults, breaches of representations, breaches of affirmative or negative covenants, cross defaults to other material indebtedness, bankruptcy and failure to discharge certain judgments. If a default occurs and is not cured within any applicable cure period or is not waived, the Company's obligations under the credit facility may be accelerated.

As of December 27, 2014, the Company was in compliance with all covenants under its credit facility.

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Stock Options Plans and Stock-Based Compensation

12 Months Ended

Dec. 27, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Options Plans and Stock-Based Compensation

9. Stock Option Plans and Stock-Based Compensation

The Company has options outstanding under three stock incentive plans: the 2004 Stock Option and Incentive Plan (the “2004 Plan”), the 2005 Stock Option and Incentive Plan (the "2005 Plan") and the Evolution Robotics, Inc. 2007 Stock Plan (the "2007 Plan" and together with the 2004 Plan and the 2005 Plan, the “Plans”). All options that remained outstanding under the 1994 Stock Option Plan as of December 28, 2013 were exercised during fiscal 2014. The 2005 Plan is the only one of the four plans under which new awards may currently be granted. Under the 2005 Plan, which became effective October 10, 2005, 1,583,682 shares were initially reserved for issuance in the form of incentive stock options, non-qualified stock options, stock appreciation rights, deferred stock awards and restricted stock awards. Additionally, the 2005 Plan provides that the number of shares reserved and available for issuance under the plan will automatically increase each January 1, beginning in 2007, by 4.5% of the outstanding number of shares of common stock on the immediately preceding December 31. Stock options returned to the Plans, with the exception of the 2007 Plan, as a result of their expiration, cancellation or termination are automatically made available for issuance under the 2005 Plan. Eligibility for incentive stock options is limited to those individuals whose employment status would qualify them for the tax treatment associated with incentive stock options in accordance with the Internal Revenue Code of 1986, as amended. As of December 27, 2014, there were 4,762,446 shares available for future grant under the 2005 Plan.

Options granted under the Plans are subject to terms and conditions as determined by the compensation committee of the board of directors, including vesting periods. Options granted under the Plans are exercisable in full at any time subsequent to vesting, generally vest over periods from one to five years , and expire seven or ten years from the date of grant or, if earlier, 60 or 90 days from employee termination. The exercise price of incentive stock options is typically equal to the closing price on the NASDAQ Global Market on the date of grant. The exercise price of nonstatutory options may be set at a price other than the fair market value of the common stock.

In conjunction with the acquisition of Evolution Robotics, Inc. on October 1, 2012, each outstanding and unvested incentive stock option held by Evolution employees as of the acquisition date was automatically converted into stock options of the Company under the same terms and conditions as were applicable to the original Evolution grants. The number of replacement options granted and the associated exercise prices were determined utilizing a conversion ratio as defined in the merger agreement. There were 114,248 incentive stock options issued by the Company as a result of this automatic conversion with exercise prices ranging from $2.55 to $4.81. All of these options were granted from the 2007 Plan, which was assumed by the Company as a result of the acquisition.

The Company recognized $4.1 million of stock-based compensation expense during the fiscal year ended December 27, 2014 for stock options. The unamortized fair value as of December 27, 2014 associated with these grants was $6.6 million with a weighted-average remaining recognition period of 2.47 years. The Company expects to recognize associated stock-based compensation expense of $2.9 million, $2.2 million, $1.1 million and $0.4 million in 2015, 2016, 2017 and 2018, respectively.

The fair value of each option grant for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 was computed on the grant date using the Black-Scholes option-pricing model with the following assumptions:

	Fiscal Year Ended
	December 27, 2014	December 28, 2013	December 29, 2012
Risk-free interest rate	1.65% — 1.69%	0.90% — 1.77%	0.63% — 0.90%
Expected dividend yield	—	—	—
Expected life	3.91 — 4.00 years	4.03 — 4.21 years	4.12 — 4.18 years
Expected volatility	52.8% — 56.0%	54.0% — 58.0%	63.0% — 64.0%

The risk-free interest rate is derived from the average U.S. Treasury constant maturity rate, which approximates the rate in effect at the time of grant, commensurate with the expected life of the instrument. The dividend yield is zero based upon the fact the Company has never paid and has no present intention to pay cash dividends. The Company utilizes company specific historical data for purposes of establishing expected volatility and expected term.

Based upon the above assumptions, the weighted average fair value of each stock option granted for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012 was $15.87, $11.17 and $13.23, respectively.

The table below summarizes stock option plan activity:

	Number of Shares		Weighted Average Exercise Price		Weighted  Average Remaining Contractual Term	Aggregate Intrinsic Value(1)
Outstanding at December 31, 2011	2,561,292		$	17.17
Granted	547,948		19.70
Exercised	(390,956	)	11.07
Canceled	(214,617	)	21.91
Outstanding at December 29, 2012	2,503,667		$	18.27
Granted	293,325		24.60
Exercised	(840,951	)	16.21
Canceled	(185,666	)	22.16
Outstanding at December 28, 2013	1,770,375		$	19.89
Granted	233,181		37.10
Exercised	(486,252	)	18.39
Canceled	(43,984	)	27.17
Outstanding at December 27, 2014	1,473,320		$	22.89	3.87 years	$18.2 million
Vested and expected to vest at December 27, 2014	1,419,559		$	22.61	3.79 years	$17.8 million
Exercisable as of December 27, 2014	917,340		$	19.32	2.82 years	$14.2 million
Weighted average fair value of options granted during the fiscal year ended December 27, 2014			$	15.87
Options available for future grant at December 27, 2014	4,762,446

 _________________________

(1) The aggregate intrinsic value on the table was calculated based upon the positive difference between the closing market value of the Company’s stock on December 27, 2014 of $34.81 and the exercise price of the underlying option.

During fiscal years 2014, 2013, and 2012, the total intrinsic value of stock options exercised was $10.5 million, $12.1 million and $6.2 million, respectively. No amounts relating to stock-based compensation have been capitalized.

The following table summarizes information about stock options outstanding at December 27, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted Average Remaining Contractual Life	Weighted  Average Exercise Price		Number Exercisable	Weighted Average Exercise Price
$  3.54 - $ 7.76	156,380	3.68 years	$	6.08	134,520	$	6.29
8.10 - 14.13	100,551	1.10	13.36		100,551	13.36
14.52 - 14.52	164,442	2.26	14.52		164,442	14.52
14.54 - 22.20	182,584	3.63	19.17		113,901	19.54
22.86 - 22.86	194,508	5.09	22.86		79,614	22.86
24.00 - 25.99	199,546	2.66	24.75		153,876	24.46
26.59 - 33.48	264,971	4.30	31.19		156,756	31.05
33.72 - 35.96	121,445	6.10	35.01		13,680	34.34
37.08 - 37.08	34,500	6.84	37.08		—	—
43.35 -  43.35	54,393	6.19	43.35		—	—
$ 3.54 -  $43.35	1,473,320	3.87 years	$	22.89	917,340	$	19.32

During the fiscal year ended December 27, 2014, the Company recognized $9.7 million of stock-based compensation expense associated with restricted stock units. As of December 27, 2014, December 28, 2013 and December 29, 2012, the unamortized fair value of all restricted stock units was $20.1 million, $17.5 million and $17.9 million, respectively. The Company expects to recognize associated stock-based compensation expense of $8.3 million, $6.4 million, $4.0 million and $1.4 million in 2015, 2016, 2017 and 2018, respectively.

The table below summarizes activity relating to restricted stock units:

	Number of Shares Underlying Restricted Stock		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2011	607,505		$	22.77
Granted	685,529		24.62
Vested	(204,053	)	21.24
Forfeited	(147,951	)	25.07
Outstanding at December 29, 2012	941,030		$	24.09
Granted	521,056		25.87
Vested	(348,141	)	22.57
Forfeited	(186,291	)	24.91
Outstanding at December 28, 2013	927,654		$	25.50
Granted	372,159		38.25
Vested	(318,367	)	25.38
Forfeited	(71,591	)	28.42
Outstanding at December 27, 2014	909,855		$	30.53

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Income Taxes (Details Textual) (USD $)	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Income Taxes (Textual) [Abstract]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 0	$ 0	$ 0
Deferred tax liability not established for undistributed earnings of non-US subsidiaries	600,000
Net deferred tax assets	29,914,000	30,239,000
Operating Loss Carryforwards	34,500,000	45,000,000
Decrease in unrecognised tax benefits due to settlement of federal tax audit	200,000
Unrecognized Tax Benefit to the income tax provision if it become recognizable	1,900,000
Unrecognized Tax Benefit, related to stock-based compensation, state NOLs	700,000	0
Unrecognized Tax Benefits	500,000	500,000
Deferred Tax Assets, Valuation Allowance	0	2,090,000	2,691,000	0
Evolution Robotics, Inc. (ER) [Member]
Income Taxes (Textual) [Abstract]
Operating Loss Carryforwards	34,500,000
Research Tax Credit Carryforward [Member]
Income Taxes (Textual) [Abstract]
Tax Credit Carryforward, Amount	9,100,000	8,900,000
Research Tax Credit Carryforward [Member] | Evolution Robotics, Inc. (ER) [Member]
Income Taxes (Textual) [Abstract]
Tax Credit Carryforward, Amount	2,200,000
Investment Tax Credit Carryforward [Member]
Income Taxes (Textual) [Abstract]
Tax Credit Carryforward, Amount	$ 700,000	$ 600,000

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Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Activity related to the warranty accrual
Balance at beginning of period	$ 6,497		$ 6,057		$ 10,306
Provision	6,410	[1]	1,744	[1]	1,682	[1]
Warranty usage	(5,138)	[2]	(1,304)	[2]	(2,567)	[2]
Balance at end of period	$ 7,769		$ 6,497		$ 6,057

[1] During 2012, the Company recorded favorable adjustments relating to reductions in its international warranty accrual for our home robots business related to our sustained improvements in product quality, resulting in a net credit for its 2012 warranty provision.

[2] Warranty usage includes costs incurred for warranty obligations.

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Income Taxes (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014
Company's adjustments to its uncertain tax position
Balance at beginning of period	$ 2,618
Increase for tax positions related to the current year	252
Increase for tax positions related to prior years	(108)
Decreases for settlements with applicable taxing authorities	(271)
Balance at end of period	$ 2,491

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Goodwill and other intangible assets (Tables)

12 Months Ended

Dec. 27, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Other intangible assets

	December 27, 2014								December 28, 2013
	Cost		Accumulated Amortization		Impairment Loss		Net		Cost		Accumulated Amortization		Impairment Loss		Net
	(In thousands)
Completed technology	$	30,600	$	9,691	$	1,788	$	19,121	$	30,600	$	6,202	$	1,788	$	22,610
Research contracts	100		100		—		—		100		100		—		—
Tradename	800		775		—		25		800		742		—		58
Total	$	31,500	$	10,566	$	1,788	$	19,146	$	31,500	$	7,044	$	1,788	$	22,668

Estimated future amortization expense related to current intangible assets

	(In thousands)
2015	$	3,482
2016	3,457
2017	3,457
2018	3,457
2019	2,818
Total	$	16,671

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Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Accrued Liabilities, Current [Abstract]
Accrued Bonuses	$ 8,455	$ 13,002
Components of accrued expenses
Accrued warranty	7,769	6,497
Accrued direct fulfillment costs	1,346	1,362
Accrued Sales Tax	867	831
Customer Deposits, Current	702	103
Accrued rent	701	726
Accrued sales commissions	531	539
Accrued contractors, current	217	509
Accrued other	6,568	4,313
Accrued expenses, total	18,701	14,880
Accrued Employee Benefits, Current	7,780	6,604
Employee-related Liabilities, Current	$ 16,235	$ 19,606

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Goodwill and other intangible assets

12 Months Ended

Dec. 27, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and other intangible assets

14. Goodwill and other intangible assets

The carrying amount of the goodwill at December 27, 2014 is $48.8 million. $41.0 million resulted from the acquisition of Evolution Robotics, Inc. in October 2012 and was assigned to the home robots reporting unit. $7.7 million (net of a subsequent write-down of $0.2 million) resulted from the acquisition of Nekton Research, LLC completed in September 2008 and was assigned to the defense and security reporting unit. In conjunction with the reorganization completed as of the beginning of the fiscal year 2013, the defense and security reporting unit was divided into two reporting units: the defense and security reporting unit and the research reporting unit. As a result, the goodwill of $7.9 million was reassigned utilizing a relative fair value allocation approach. $7.7 million and $0.2 million were reassigned to the defense and security and research reporting units, respectively.

During the second quarter of 2013, the Company decided to refocus its funded research activities. The Company considered this decision to be an impairment indicator, requiring an interim impairment test within the research reporting unit. The Company performed an impairment assessment using the income approach, and determined that goodwill was impaired. The Company recorded an impairment loss of $0.2 million within general and administrative expenses during the fiscal year ended December 28, 2013.

In the fourth quarter of 2014, the Company completed its annual goodwill impairment test. The first step of the two-step impairment test, which involves comparing the fair values of the applicable reporting units with their aggregate carrying values, including goodwill, was completed, and the Company did not identify any additional goodwill impairment.

Other intangible assets include the value assigned to completed technology, research contracts, and trade names. The estimated useful lives for all of these intangible assets are two to ten years. The intangible assets are being amortized on a straight-line basis, which is consistent with the pattern that the estimated economic benefits of the intangible assets are expected to be utilized.

Intangible assets at December 27, 2014 and December 28, 2013 consisted of the following:

	December 27, 2014								December 28, 2013
	Cost		Accumulated Amortization		Impairment Loss		Net		Cost		Accumulated Amortization		Impairment Loss		Net
	(In thousands)
Completed technology	$	30,600	$	9,691	$	1,788	$	19,121	$	30,600	$	6,202	$	1,788	$	22,610
Research contracts	100		100		—		—		100		100		—		—
Tradename	800		775		—		25		800		742		—		58
Total	$	31,500	$	10,566	$	1,788	$	19,146	$	31,500	$	7,044	$	1,788	$	22,668

As part of the Company's decision during 2013 to refocus its funded research activities, the Company decided to no longer pursue certain research contracts in which completed technology acquired as part of the acquisition of Nekton Research, LLC was utilized. As a result, the Company performed an impairment assessment of the associated intangible asset using the income approach, and recorded an impairment loss of $1.8 million within general and administrative expenses during the fiscal year ended December 28, 2013.

Amortization expense related to acquired intangible assets was $3.5 million, $3.8 million, and $1.2 million for the fiscal years ended December 27, 2014, December 28, 2013 and December 29, 2012, respectively. The estimated future amortization expense related to current intangible assets in each of the five succeeding fiscal years is expected to be as follows:

	(In thousands)
2015	$	3,482
2016	3,457
2017	3,457
2018	3,457
2019	2,818
Total	$	16,671

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 27, 2014

Valuation and Qualifying Accounts Disclosure [Line Items]

Components of available for sale securities

The fair value of investments is determined based on quoted market prices at the reporting date for those instruments. As of December 27, 2014 and December 28, 2013, investments consisted of:

	December 27, 2014				December 28, 2013
	Cost		Fair Market Value		Cost		Fair Market Value
	(In thousands)
Corporate and government bonds	$	36,659	$	36,166	$	22,134	$	21,954
Total short term investments	$	36,659	$	36,166	$	22,134	$	21,954

Activity related to allowance for doubtful accounts

Activity related to the allowance for doubtful accounts was as follows:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	67	$	111		$	87
Provision	—		—			37
Deduction(*)	—		(44		)	(13		)
Balance at end of period	$	67	$	67		$	111

_____________________  

(*) Deductions related to allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.

Activity related to Inventory reserve

The table below summarizes activity relating to the valuation allowance:

Fiscal Year Ended	Balance at beginning  of period		Additions Charged to Costs and Expenses	Additions Charged to Goodwill	Deductions	Balance at End of Period
	(In thousands)
December 29, 2012	$	—	—	2,691	—	$	2,691
December 28, 2013	$	2,691	—	—	601	$	2,090
December 27, 2014	$	2,090	—	—	2,090	$	—

Property and equipment

Depreciation is computed using the straight-line method over the estimated useful lives as follows:

	Estimated Useful Life
Computer and research equipment	3 years
Furniture	5
Machinery	2-5
Tooling	2-5
Business applications software	5-7
Capital leases and leasehold improvements	Lesser of economic benefit period or term of lease

Property and equipment consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Computer and equipment	$	15,173	$	13,715
Furniture	2,297		1,845
Machinery	5,307		3,705
Tooling	18,614		12,228
Leasehold improvements	20,833		15,983
Business applications software	8,214		8,162
	70,438		55,638
Less: accumulated depreciation	39,141		31,977
	$	31,297	$	23,661

Basic and diluted net income per share

The following table presents the calculation of both basic and diluted net income per share:

	Fiscal Year Ended
	December 27, 2014		December 28, 2013		December 29, 2012
Net income	$	37,803	$	27,641	$	17,297
Weighted-average shares outstanding	29,485		28,495		27,577
Dilutive effect of employee stock options and restricted shares	725		859		724
Diluted weighted average shares outstanding	30,210		29,354		28,301
Basic income per share	$	1.28	$	0.97	$	0.63
Diluted income per share	$	1.25	$	0.94	$	0.61

Inventory Valuation Reserve [Member]

Valuation and Qualifying Accounts Disclosure [Line Items]

Activity related to Inventory reserve

Activity related to the inventory reserve was as follows:

	Fiscal Year Ended
	December 27, 2014			December 28, 2013			December 29, 2012
	(In thousands)
Balance at beginning of period	$	5,280		$	6,608		$	2,568
Provision	1,045			1,571			5,101
Deduction(*)	(1,074		)	(2,899		)	(1,061		)
Balance at end of period	$	5,251		$	5,280		$	6,608

 ___________________________

(*) Deductions related to inventory reserve accounts represent amounts written off against the reserve.

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Property and Equipment (Details) (USD $)	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Property and Equipment
Property, Plant and Equipment, Gross	$ 70,438,000	$ 55,638,000
Less: accumulated depreciation	39,141,000	31,977,000
Property, Plant and Equipment, Net, Total	31,297,000	23,661,000
Depreciation And Amortization [Abstract]
Depreciation	9,200,000	8,100,000	9,900,000
Computer and equipment [Member]
Property and Equipment
Property, Plant and Equipment, Gross	15,173,000	13,715,000
Furniture [Member]
Property and Equipment
Property, Plant and Equipment, Gross	2,297,000	1,845,000
Machinery [Member]
Property and Equipment
Property, Plant and Equipment, Gross	5,307,000	3,705,000
Tooling [Member]
Property and Equipment
Property, Plant and Equipment, Gross	18,614,000	12,228,000
Leasehold improvements [Member]
Property and Equipment
Property, Plant and Equipment, Gross	20,833,000	15,983,000
Software and Software Development Costs [Member]
Property and Equipment
Property, Plant and Equipment, Gross	$ 8,214,000	$ 8,162,000

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Summary of Significant Accounting Policies (Details 3)	12 Months Ended
	Dec. 27, 2014
Computer and research equipment [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	3 years
Furniture [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	5 years
Capital leases and leasehold improvements [Member]
Property Plant And Equipment [Line Items]
Capital leases and leasehold improvements	Lesser of economic benefit period or term of lease
Minimum [Member] | Machinery [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	2 years
Minimum [Member] | Tooling [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	2 years
Minimum [Member] | Software and Software Development Costs [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member] | Machinery [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member] | Tooling [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member] | Software and Software Development Costs [Member]
Property Plant And Equipment [Line Items]
Estimated useful life	7 years

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Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Statement of Comprehensive Income [Abstract]
Net income, as reported	$ 37,803	$ 27,641	$ 17,297
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments, net of tax	(298)	(52)	48
Total comprehensive income	$ 37,505	$ 27,589	$ 17,345

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Inventory

12 Months Ended

Dec. 27, 2014

Inventory Disclosure [Abstract]

Inventory

3. Inventory

Inventory consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Raw materials	$	9,455	$	8,520
Work in process	—		—
Finished goods	38,402		37,587
	$	47,857	$	46,107

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Stock Options Plans and Stock Based Compensation (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended		12 Months Ended
	Oct. 02, 2012	Oct. 10, 2005	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effective date for stock options plan		Oct. 10, 2005
Increase in number of shares reserved and available for issuance in different forms				4.50%
Share based compensation arrangement shares available for grant			4,762,446
Unamortized fair value stock options granted			$ 6.6
Weighted average fair value of each stock option granted			$ 15.87	$ 11.17	$ 13.23
Closing market value of stock			$ 34.81
Total intrinsic value of stock options exercised			10.5	12.1	6.2
Weighted average exercise price, exercisable			$ 19.32
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 2.55		$ 3.54
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 4.81		$ 43.35
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense for stock options and restricted stock units granted subsequent to initial S-1 filing			9.7
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options			20.1	17.5	17.9
Stock-based compensation expense Expects to recognize in year one related to restricted stock units			8.3
Stock-based compensation expense Expects to recognize in year two related to restricted stock units			6.4
Stock-based compensation expense Expects to recognize in year three related to restricted stock units			4.0
Stock-based compensation expense Expects to recognize in year four related to restricted stock units			1.4
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense for stock options and restricted stock units granted subsequent to initial S-1 filing			4.1
Weighted average remaining recognition period			2 years 5 months 20 days
Stock-based compensation expense Expects to recognize in year one related to restricted stock units			2.9
Stock-based compensation expense Expects to recognize in year two related to restricted stock units			2.2
Stock-based compensation expense Expects to recognize in year three related to restricted stock units			1.1
Stock-based compensation expense Expects to recognize in year four related to restricted stock units			$ 0.4
Employee Stock Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for options			5 years
Minimum expiration period for options			10 years
Employee Stock Option [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for options			1 year
Minimum expiration period for options			7 years
Two Thousand Five Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance in different forms		1,583,682
Share based compensation arrangement shares available for grant			4,762,446
Employee Termination [Member] | Employee Stock Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum expiration period for options			90 days
Employee Termination [Member] | Employee Stock Option [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum expiration period for options			60 days
Evolution Robotics, Inc. (ER) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	114,248

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Acquisition of Evolution Robotics, Inc. Acquisition of Evolution Robotics, Inc. (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012
Business Acquisition, Pro Forma Information [Abstract]
Revenue	$ 445,469
Net Income	$ 8,723

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Inventory (Tables)

12 Months Ended

Dec. 27, 2014

Inventory Disclosure [Abstract]

Inventory

Inventory consists of the following at:

	December 27, 2014		December 28, 2013
	(In thousands)
Raw materials	$	9,455	$	8,520
Work in process	—		—
Finished goods	38,402		37,587
	$	47,857	$	46,107

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Restructuring Charges Restructuring Charges (Details) (USD $)	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 675,000	$ 197,000	$ 0
Charges	0	3,296,000	3,679,000
Utilization	(675,000)	(2,818,000)	(3,482,000)
Balance at end of period	0	675,000	197,000
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred		3,300,000	3,700,000
Restructuring Reserve [Roll Forward]
Charges		$ 1,800,000

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Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Components of available for sale securities
Total short term investments, Cost	$ 36,659	$ 22,134
Total short term investments, Fair Market Value	36,166	21,954
Bonds [Member]
Components of available for sale securities
Total short term investments, Cost	36,659	22,134
Total short term investments, Fair Market Value	$ 36,166	$ 21,954

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Acquisition of Evolution Robotics, Inc.

12 Months Ended

Dec. 27, 2014

Business Combinations [Abstract]

Acquisition of Evolution Robotics, Inc.

13. Acquisition of Evolution Robotics, Inc.

On October 1, 2012, the Company acquired 100% of the equity of Evolution Robotics, Inc. (Evolution) for $74.8 million in cash, including the effect of working capital adjustments and cash received, with $8.88 million of the purchase price placed into an escrow account to settle certain claims for indemnification for breaches or inaccuracies in Evolution’s representations and warranties, covenants and agreements. As of December 27, 2014, all indemnification claims and escrow balances have been released. Evolution was the developer of Mint and Mint Plus automatic floor cleaning robots, based in Pasadena, California, and is included in the Company's home robots business unit.

Pro Forma Disclosures (Unaudited)

The following unaudited pro forma consolidated results of operations for fiscal 2012 assume that the acquisition of Evolution occurred as of January 2, 2011.

	Fiscal Year Ended
	December 29, 2012
	(In thousands)
Revenue	$	445,469
Net Income	8,723

These pro forma amounts do not purport to be indicative of the results that would have actually been obtained if the acquisitions had occurred at the beginning of the periods presented or that may be obtained in the future.