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Item 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
PART IV

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark One)    

ý

 

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

For the fiscal year ended June 30, 2014

or

o

 

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

Commission file number 001-33301

ACCURAY INCORPORATED
(Exact name of registrant as specified in its charter)

DELAWARE
(State or Other Jurisdiction of
Incorporation or organization)
  20-8370041
(I.R.S. Employer
Identification No.)

1310 Chesapeake Terrace
Sunnyvale, California 94089

(Address of Principal Executive Offices) (Zip Code)

Registrants' telephone number, including area code: (408) 716-4600

         Securities registered pursuant to section 12(b) of the Act:

Title of Each Class   Name of Each Exchange on Which Registered
Common Stock, $.001 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 o    No ý

         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 o    No ý

         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 ý    No o

         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 ý    No o

         Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the 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.    o

         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 definitions of "large accelerated filer," "accelerated filer," and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):

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

         Indicate by check mark whether the registrant is a Shell Company (as defined in Rule 12b-2 of the Exchange Act). Yes o    No ý

         The aggregate market value of the registrant's common stock held by non-affiliates of the registrant based on the last sale price for such stock on December 31, 2013, the last business day of the registrant's most recently completed second fiscal quarter was: $320,685,967. Shares of the registrant's common stock held by each executive officer, director and 5% stockholder have been excluded in that such persons may be deemed to be affiliates. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

         As of August 15, 2014, the number of outstanding shares of the registrant's common stock, $0.001 par value, was 77,300,200

DOCUMENTS INCORPORATED BY REFERENCE

         Portions of the Proxy Statement for the Registrant's 2014 Annual Meeting of stockholders are incorporated by reference in Part III of this Form 10-K.

   


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ACCURAY INCORPORATED

YEAR ENDED JUNE 30, 2014

FORM 10-K

ANNUAL REPORT

TABLE OF CONTENTS

 
   
  Page No.  

PART I

 

Item 1.

 

Business

   
3
 

Item 1A.

 

Risk Factors

   
28
 

Item 1B.

 

Unresolved Staff Comments

   
54
 

Item 2.

 

Properties

   
54
 

Item 3.

 

Legal Proceedings

   
55
 

Item 4.

 

Mine Safety Disclosures

   
55
 

PART II

 

Item 5.

 

Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

   
56
 

Item 6.

 

Selected Financial Data

   
57
 

Item 7.

 

Management's Discussion and Analysis of Financial Condition and Results of Operations

   
60
 

Item 7A.

 

Quantitative and Qualitative Disclosure About Market Risk

   
76
 

Item 8.

 

Financial Statements and Supplementary Data

   
77
 

Item 9.

 

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

   
120
 

Item 9A.

 

Controls and Procedures

   
120
 

Item 9B.

 

Other Information

   
120
 

PART III

 

Item 10.

 

Directors, Executive Officers and Corporate Governance

   
122
 

Item 11.

 

Executive Compensation

   
122
 

Item 12.

 

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

   
122
 

Item 13.

 

Certain Relationships and Related Transactions, and Director Independence

   
122
 

Item 14.

 

Principal Accountant Fees and Services

   
122
 

PART IV

 

Item 15.

 

Exhibits and Financial Statement Schedules

   
123
 

 

Signatures

   
133
 

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

        This Form 10-K includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, but not limited to, statements regarding future revenues and expenses, marketing efforts, reimbursement rates, regulatory requirements, future orders, radiation therapy market, our strategy, our products, intellectual property rights, and our earnings or other financial results, and other statements using words such as "anticipates," "believes," "could," "estimates," "expects," "forecasts," "intends," "may," "plans," "projects," "should," "will" and "would," and words of similar import and the negatives thereof. Accuray Incorporated ("we," "our, or the "Company") has based these forward-looking statements largely on our current expectations and projections about future events and financial trends affecting the financial condition of our business. Forward-looking statements should not be read as a guarantee of future performance or results, and will not necessarily be accurate indications of the times at, or by, which such performance or results will be achieved. These forward-looking statements speak only as of the date of this Form 10-K and are subject to business and economic risks. Factors that could cause our actual results to differ materially include those discussed under "Risk Factors" in Part I, Item 1A of this report. We undertake no obligation to update or revise any forward-looking statements to reflect any event or circumstance that arises after the date of this report.


PART I

Item 1.    BUSINESS

The Company

        Accuray Incorporated is a radiation oncology company that develops, manufactures, sells and supports precise, innovative treatment solutions. Our leading edge technologies are designed to deliver advanced radiation therapy, including radiosurgery, stereotactic body radiation therapy, intensity modulated radiation therapy, image guided radiation therapy and adaptive radiation therapy tailored to the specific needs of each patient. Our suite of products includes the CyberKnife® Systems and the TomoTherapy® Systems. The systems are complementary offerings, optimized to serve separate patient populations treated by the same medical specialty, with advanced capabilities that offer increased treatment flexibility.

        The CyberKnife Systems are fully robotic stereotactic radiosurgery systems, or SRS, and stereotactic body radiation therapy systems, or SBRT, used to treat multiple types of cancer and tumors throughout the body. The CyberKnife Systems automatically track, detect and correct for tumor and patient movement in real-time during the procedure, enabling delivery of precise, high dose radiation with sub-millimeter accuracy while patients breathe normally, without manual user intervention. Treatment with the CyberKnife Systems requires no anesthesia, and can be performed in one to five staged treatment sessions on an outpatient basis. In addition, the CyberKnife Systems are designed to minimize many of the risks and complications associated with other treatment options. The latest generation CyberKnife M6 Series System which includes fixed and iris collimators as well as an anticipated multi-leaf collimator, or MLC, has improved throughput, motion tracking and treatment flexibility over previous generation systems.

        The TomoTherapy Systems are used to treat a wide range of cancers and tumors, and enable efficient daily imaging to ensure the accuracy of the patient position before each treatment delivery. The TomoTherapy Systems operate on ring gantries and combine integrated computer tomography, or CT, imaging with intensity modulated radiation therapy, or IMRT, which is designed to deliver radiation treatments with speed and precision while reducing radiation exposure to surrounding healthy tissue. The latest generation TomoTherapy System is the Tomo H TM Series that includes the following options: TomoHelicalTM, TomoDirectTM, High Performance VoLo TM Planning and TomoEdge dynamic jaws. The system configuration depends on the options chosen by the customer.

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        We also factory refurbish and sell CyberKnife M6 Series Systems, CyberKnife VSI Systems, TomoTherapy HDA Series Systems and TomoTherapy Hi-Art Systems.

        We were incorporated in California in 1990 and commenced operations in 1992. We reincorporated in Delaware in 2007. Our principal offices are located at 1310 Chesapeake Terrace, Sunnyvale, CA 94089, and our telephone number is (408) 716-4600.

Market Overview

        Despite significant improvements in cancer diagnosis and treatment, cancer rates continue to increase globally and are a leading cause of death. According to the International Agency for Research on Cancer, the specialized cancer agency of the World Health Organization, annual cancer rates around the world are projected to increase by over 56% to 22.0 million new cases in the year 2030 from 14.1 million cases in 2012. Since 2010, cancers are estimated to have been the leading cause of death. In the United States, cancer is the second leading cause of death after heart disease.

        Cancers can be broadly divided into two groups: solid tumor cancers, which are characterized by the growth of malignant tumors within the body in areas such as the brain, lung, liver, breast or prostate, and hematological, or blood-borne cancers, such as leukemia. The American Cancer Society (ACS) estimates that solid tumor cancers will account for approximately 1.5 million, or approximately 91% of new cancer cases diagnosed annually, and will account for approximately 0.5 million cancer related deaths in the United States.

        Traditional methods for the treatment of solid tumor cancers include chemotherapy, surgery and radiation therapy. Currently, the most common type of radiation therapy is external beam radiation therapy, in which patients are treated with high-energy radiation generated by medical equipment external to the patient. Linear accelerators, commonly referred to as linacs, have been widely used for radiation therapy for over 30 years. Linacs represent the largest product segment within the global radiation therapy equipment market which was estimated to have a market size of approximately $3.2 billion in 2013, according to the November 2013 Radiation Therapy Equipment Report by Global Industry Analysts, Inc. Increasing preference for non-surgical options is another major factor promoting radiotherapy. Approximately 60% of cancer patients worldwide will undergo some form of radiation therapy during the course of their treatment. While radiation therapy is widely available in the United States and Western Europe, many developing countries currently do not have a sufficient number of linacs to adequately treat their domestic cancer patient populations. We believe increasing demand for advanced medical treatments in many international markets and growth in cancer incidences worldwide will continue to drive demand for advanced linacs in the coming years.

Radiation Therapy

        Radiation therapy is used to treat a wide range of cancer and tumor types. Radiation therapy works by exposing clusters of cancer cells, or tumors, to a dose of high energy radiation sufficient to cause cell death. During external beam radiation therapy, the clinician's goal is to target radiation delivery to the tumor as precisely as possible in order to maximize the radiation dose delivered to cancerous tissue and minimize the exposure of healthy tissue. Recent advances in radiation therapy technologies have allowed clinicians to further improve the ability to target the radiation dose more precisely at cancer cells while minimizing the exposure of healthy tissue. These advances include the following:

    Intensity modulated radiation therapy.    Intensity modulated radiation therapy involves varying, or modulating, the radiation beam intensity across the treatment area. This technique aims to conform the high dose region of the radiation beam more closely with the shape of the tumor, enabling the delivery of higher doses of radiation to tumors with a reduced impact on surrounding healthy tissue.

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    Image guided radiation therapy.    Image guided radiation therapy, or IGRT, involves delivering radiation guided by images of the treatment area taken shortly before and/or during treatment using CT scan, x-ray, ultrasound or other imaging technologies. By combining imaging with radiation treatment, clinicians can adjust the patient's position relative to the radiation source prior to each treatment to target the tumor more precisely.

    Radiosurgery and Stereotactic Body Radiation Therapy.    Radiosurgery originated for tumors in the brain (intracranial tumors) in a single treatment session (referred to as a fraction). However, depending on the proximity of normal healthy tissue to the tumor, there was a need for delivering radiosurgery in smaller daily doses by dividing the prescription dose into one to five fractions. The ability to deliver fractionated intracranial radiosurgery was developed to meet this need. Additionally, the same tumor ablation techniques for the brain have been extended to the treatment of targets anywhere in the body, often referred to as Stereotactic Body Radiation Therapy, or SBRT. To achieve the accuracy and precision required for both radiosurgery and SBRT, image guidance during treatment and a wide range of beam angles are critical for treatment.

    Adaptive radiation therapy.    Adaptive radiation therapy involves adjusting a patient's radiation therapy plan during or between fractions to account for changes in the patient's anatomy, the amount and location of the radiation received by the patient, and the size, shape and location of the tumor. While there is no widely accepted definition of adaptive radiation therapy, it has been characterized to include as little as an adjustment to the physical position of the patient relative to the radiation source prior to treatment, as occurs during IGRT, rather than an adjustment to the treatment plan. Our approach is based on the belief that adaptive radiation therapy requires monitoring and adjustments to the treatment plan facilitated by both the regular acquisition of updated quantitative images showing the location, size, shape and density of the tumor, and verification of the radiation dose received by the patient throughout the entire course of treatment.

    Hypofractionation.    Higher doses of radiation have been shown to yield greater local control of the tumor. The advent of innovative technological features in radiation therapy treatment planning and delivery has enabled clinicians to maximize the radiation dose administered to tumors in the patient, improving local tumor control and, in some cases, improving patient survival rates. Hypofractionation is an evolving radiation therapy technique that involves reducing the number of fractions and delivering larger doses of radiation per fraction. The benefits of hypofractionation include patient convenience as a result of fewer treatment visits and more efficient use of radiation therapy systems. Stereotactic radiation therapy and stereotactic radiosurgery procedures, in which treatment is provided in one to five sessions, are extreme examples of hypofractionation. Hypofractionation has been used to date to treat only a limited number of tumor types. These tumors are generally small and are located in specific, sensitive regions of the body, such as the head and neck, spinal cord, lung and prostate, where the very high intensity radiation involved in dose escalation increases the need for a radiation delivery system that is capable of locating tumors and delivering radiation with high precision.

        Despite advances in radiation therapy techniques, most commercially available radiation therapy systems from other manufacturers still present significant limitations that restrict clinicians' ability to provide the most precise treatment possible. These limitations include:

    Limited versatility and precision.    The C-arm configuration of traditional radiation therapy systems has a limited range and speed of motion due to its size and mechanical structure. Most existing MLCs, which modulate or shape the radiation beams, have mechanical limitations that reduce their beam-shaping ability and the speed at which they operate. These design elements limit the motion and dynamic range of IMRT intensities capable of being delivered by traditional radiation therapy systems and often make it challenging to deliver radiation from the range of angles employed by more precise products. These limited treatment angles reduce the ability to deliver precisely

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    targeted radiation that minimizes exposure to healthy tissue. Such imprecision may prevent clinicians from treating tumors near sensitive anatomic structures, such as the eye or the spinal cord, or from re-treating patients in an area of the body that was previously exposed to radiation and may be unable to tolerate additional exposure.

    Limited ability to provide frequent, quantitative images.    Precise radiation therapy requires frequent images that accurately depict the size, shape and location of the tumor. Many traditional radiation therapy systems use imaging technologies that are not generally used on a daily basis to generate a quantitative assessment of the patient's and/or target volume's position due to concerns about the additional radiation exposure. In addition, traditional radiation therapy systems measure the amount of radiation emitted by the device based on the system's performance specifications. This calculation does not provide the clinician with data regarding the amount of radiation that was received by the patient or what tissue within the patient's body received any particular amount of radiation. Since it is common for internal organs to shift and for the size of the tumor to change during the course of treatment, failure to obtain updated images and adapt the patient and/or plan throughout the course of treatment may result in a portion, or potentially all, of the radiation dose missing the tumor and instead being absorbed by healthy tissue.

    Failure to integrate multiple functions.    The basic architecture for traditional radiation therapy systems pre-dates many recent advances and they therefore do not possess integrated imaging, treatment planning, dose verification or quality assurance capabilities necessary for more advanced treatment protocols. Some systems subsequently have been adapted to include certain elements of this functionality by incorporating modular add-on devices to legacy linac designs. These separate modular components can provide imaging, treatment planning, quality assurance procedures or post-treatment analysis functionality. However, this add-on architectural approach can have safety, accuracy, and workflow implications because the onus for checking proper operation often falls back to manual methods.

Development of Radiosurgery

        Radiosurgery systems differ from traditional radiation therapy systems in that they are designed to deliver a very high cumulative dose of radiation, in a single or a small number of treatments precisely targeted at the tumor rather than at a region that consists of the tumor plus healthy tissue that surrounds the tumor area. The more accurate delivery of radiation allows higher doses to be delivered, increasing the probability of tumor cell death and better local control. In addition, radiosurgery can be used on patients who cannot, because of advanced age or other health reasons, tolerate traditional surgery.

Our Strategy

        Our goal is to develop equipment and technology that allows physicians to deliver customized leading-edge treatment solutions that help cancer patients live longer, better lives. We endeavor to achieve this goal by expanding clinical opportunities for healthcare providers, helping them offer the best radiation treatment for each patient and by providing patients with treatment tailored to their specific needs. Our vision is a future where the fear, pain and suffering of cancer are a thing of the past. We believe our current technologies and our future innovation can help to achieve this. Some of the key elements of our strategy include the following:

        Increase physician adoption and patient awareness to drive utilization.    We are continually working to increase adoption and awareness of our systems and demonstrate their advantages over more traditional treatment methods. We hold and sponsor symposia and educational meetings and support clinical studies in an effort to demonstrate the clinical benefits of our systems. We regularly meet with clinicians to educate them on the expanded versatility that our systems offer in comparison to more

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traditional radiation therapy products. To support awareness of all of our product offerings, we assist our customers to increase patient awareness in their communities by helping them develop marketing and educational campaigns.

        Continue to expand the radiosurgery market.    While radiosurgery has traditionally been used to treat brain tumors, the CyberKnife Systems received U.S. Food and Drug Administration, or FDA, clearance in 2001 to treat tumors anywhere in the body where radiation is indicated. Our system data demonstrate that over 55% of CyberKnife utilization is for cancers and tumors in the body in places other than the brain. There are now hundreds of peer-reviewed publications supporting use of CyberKnife in treatment of various cancer and tumor types.

        Continue to innovate through clinical development and collaboration.    The clinical success of our products is due in large part to the collaborative partnerships we have developed over the last decade with clinicians, researchers and patients. We proactively seek out and rely on constructive feedback from system users to learn what is needed to enhance the technology. As a result of this collaborative process, we continually refine and upgrade our systems, thereby improving our competitive position in the radiation therapy and radiosurgery markets. Our upgrades are designed to address customer needs in the areas of improving the ease of use and accuracy of treatment, decreasing treatment times, and improving utilization for specific types of tumors.

        Expand sales in international markets.    We intend to continue to increase our sales and distribution capabilities outside of the United States to take advantage of the large international opportunity for our products. We currently have regional offices in Morges, Switzerland, Paris, France, Brussels, Belgium, Hong Kong, China, Shanghai, China and Tokyo, Japan and direct sales staff in most countries in Western Europe, Japan, India and Canada. Combined with distributors in Eastern Europe, Russia, the Middle East, the Asia Pacific region and Latin America, our sales and distribution channels cover more than 92 countries. However, many of these countries are not highly developed at this time and therefore sales opportunities may be limited. We intend to increase our international revenue by focused additions of direct sales and marketing personnel in targeted areas to further penetrate our most promising international markets, and additional distributors where opportune.

        Strategic partnerships and joint ventures.    We intend to pursue strategic partnerships and joint ventures we believe will allow us to complement our growth strategy, increase sales in our current markets and expand into adjacent markets, broaden our technology and intellectual property and strengthen our relationships with our customers. For example, in fiscal 2011, we completed the acquisition of TomoTherapy Inc., a creator of advanced radiation therapy solutions for cancer care. In July 2012, we completed the acquisition of Morphormics, Inc., a privately-held company based in North Carolina, which is a developer of medical imaging software systems.

Our Products

        Our suite of products includes the CyberKnife® Systems and the TomoTherapy® Systems.

The CyberKnife Systems

        Our principal radiosurgery products are the CyberKnife Systems, a robotic full-body radiosurgery system designed to treat tumors anywhere in the body non-invasively, which include the CyberKnife M6 Series with configuration options of fixed collimators plus iris variable aperture collimator (FI), fixed collimators plus the InCiseTM multi-leaf collimator (FM) and fixed collimators plus iris variable aperture collimator plus the InCise multi-leaf collimator (FIM).

        Using continual image guidance technology and computer controlled robotic mobility, the CyberKnife Systems are designed to deliver precise radiation from a wide array of beam angles and automatically track, detect and correct for tumor and patient movement in real-time throughout the

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treatment. This design is intended to enable the CyberKnife Systems to deliver high-dose radiation with precision, which minimizes damage to surrounding healthy tissue and eliminates the need for invasive head or body stabilization frames. Our patented image-guidance technology correlates low dose, real-time treatment X-rays with images previously taken with a CT scan of the tumor and surrounding tissue to direct each beam of radiation with increased precision versus treatments without this real-time feedback. This, in turn, enables delivery of a highly conformal, non-isocentric dose of radiation to the tumor, with minimal radiation delivered to surrounding healthy tissue. With its autonomous ability to track, detect and correct for even the slightest tumor and patient movement throughout the entire treatment, the CyberKnife System is intended to provide clinicians with an effective and accurate treatment.

        Our newest configurations of CyberKnife Systems include the following:

        The CyberKnife M6 Series with configurations of FI, FM and FIM.    The M6 Series is FDA approved to be used with any of the following options: an iris collimator (I) or a multi-leaf collimator (M). With the InCise™ MLC, larger tumors previously thought untreatable with radiosurgery and SBRT are able to be treated efficiently and with unrivaled accuracy and tissue sparing. The InCise MLC and IMRT planning tools enable expansion of indications that can be treated with a CyberKnife to include many IMRT indications. The CyberKnife® M6™ Series includes disease-specific tracking and treatment delivery solutions for brain, spine, lung and prostate tumors, treatment speeding improvements, more options to configure the treatment room, expanded number of nodes leading to more coverage and sparing of healthy tissue.

        CyberKnife VSI System.    The CyberKnife VSI System, which comes with Fixed collimators or an optional Iris collimator, is available primarily factory refurbished. The VSI System uses an intuitive planning process to enable clinicians to adapt treatment delivery to the distinct characteristics of each patient with continual image guidance.

        We believe the CyberKnife Systems offer clinicians and patients the following benefits:

        The only truly robotic system in the market.    Combining the benefits of continual image guidance and non-isocentric, non-coplanar treatment delivery, the CyberKnife Systems precisely contour radiation delivery to spare healthy tissue while maintaining sub-millimeter accuracy, even for targets that move during treatment. The CyberKnife Systems are the clinical solution to choose when accuracy, flexibility, efficiency and patient comfort are essential.

        Treatment of inoperable or surgically complex tumors.    The CyberKnife Systems may be used to target tumors that cannot be easily treated with traditional surgical techniques because of their location, number, size, shape or proximity to vital tissues or organs, or because of the age or health of the patient. The CyberKnife Systems' intelligent robotics enable the precise targeting of a tumor, while at the same time minimizing damage to surrounding healthy tissue.

        Treatment of tumors throughout the body.    The CyberKnife Systems have been cleared by the FDA to provide treatment planning and image-guided radiosurgery treatment for tumors anywhere in the body where radiation treatment is indicated. By comparison, traditional frame-based radiosurgery systems are generally limited to treating brain tumors. The CyberKnife Systems are being used for the treatment of primary and metastatic tumors outside the brain, including tumors on or near the spine and in the lung, liver, prostate and pancreas.

        Real-time tracking of tumor movement.    The CyberKnife Systems are designed to enable the treatment of tumors that change position due to respiration, tumor or patient movement during treatment. The CyberKnife Systems offer the following features which enhance image guided robotic radiation surgery: Synchrony® Respiratory Tracking System, Xsight® Lung Tracking System, Xsight® Spine Tracking System, InTempo™ Adaptive Imaging System and Lung Optimized Treatment (optional).

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        Significant patient benefits.    Patients may be treated with the CyberKnife Systems on an outpatient basis without anesthesia and without the risks and complications inherent in traditional surgery. Patients do not require substantial pre-treatment preparation, and typically there is little to no recovery time or hospital stay associated with CyberKnife Systems' treatments. In addition, the CyberKnife Systems eliminate the need for an invasive rigid frame to be screwed into the patient's skull or affixed to other parts of the body, or for artificial breath holding or gating instruments.

        Additional revenue generation through increased patient volumes.    We believe clinical use of the CyberKnife Systems allows our customers to effectively treat patients where extreme precision and ability to account for motion are important, and patients who otherwise would not have been treated with radiation or who may not have been good candidates for surgery. Therefore, we believe the treatment of these patients generates additional revenue without affecting our customers' traditional radiation therapy practices.

        Upgradeable modular design.    The CyberKnife Systems have a modular design, which facilitates the implementation of upgrades that generally do not require our customers to purchase an entirely new system to gain the benefits of new features. We continue to work to develop and offer new clinical capabilities enhancing ease of use, reducing treatment times, improving accuracy and improving patient access. The main components and options of the CyberKnife Systems include: the compact X-band linear accelerator; robotic manipulator, the real-time image-guidance system with continuous target tracking and correction; X-ray sources; image detectors. Key features of these components include:

    Robotic manipulator.    The robotic manipulator arm, with six-degrees-of-freedom range of movement, is designed to move around the patient to position the linac and direct the radiation with an extremely high level of precision and repeatability. The manipulator arm provides what we believe to be a unique method of positioning the linac to deliver doses of radiation from nearly any direction and position, without the limitations inherent in gantry-based systems, creating a non-isocentric composite dose pattern with a high level of conformance to the shape of each treated tumor. This flexibility enhances the ability to diversify beam trajectories and beam entrance and exit points, helping to minimize risks of radiation damage to healthy cells near the tumor. Furthermore, the rapid response time of the manipulator arm allows tracking of tumors that move with respiration.

    Real-time image-guidance system with continuous target tracking and correction.    Without the need for clinician intervention or treatment interruption, the CyberKnife Systems' real-time image-guided robotics is designed to enable continuous monitoring and correction for patient and tumor movements throughout each treatment as it is being delivered.

    X-ray sources.    The low-energy X-ray sources generate the X-ray images that help determine the location of bony or other anatomic landmarks, or implanted fiducials, which are used for tracking throughout the entire treatment.

    Image detectors.    The image detectors capture high-resolution anatomical images throughout the treatment. These live images are continually compared to the patient's CT scan to determine real-time patient positioning. Based on this information, the robotic manipulator automatically corrects for detected movements.

        In addition to the main components listed above, we also offer the following components and options: Synchrony Respiratory Tracking System; Xsight Spine Tracking System; Xsight Lung Tracking System; Lung Optimized Treatment; RoboCouch® Patient Positioning System; Xchange Robotic Collimator Changer; Iris Variable Aperture Collimator; 4D Treatment Optimization and Planning System; InTempo Adaptive Imaging System; MultiPlan® Treatment Planning System; MultiPlan MD Suite; CyberKnife Data Management System; MultiPlan Quick Review; Radiosurgery DICOM Interface; Monte Carlo Dose Calculation; Sequential Optimization Treatment Planning; Robotic

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IMRTTM; AutoSegmentation; QuickPlan; PlanTouchTM; and the InCiseTM Multi-leaf Collimator. Key features of these components are as follow:

        Synchrony Respiratory Tracking System.    The CyberKnife Systems' proprietary motion tracking system, the Synchrony® Respiratory Tracking System, is used to continuously track tumors that move with respiration as beams are synchronized in real-time to tumor position while adapting to changes in breathing patterns, allowing for the delivery of highly conformed radiation beams while reducing areas of healthy tissue exposed to radiation. The Synchrony system provides what we believe is unsurpassed clinical accuracy of approximately 1.5 millimeters for tumors that move with respiration without the need for implanted fiducials.

        Iris Variable Aperture Collimator.    The Iris Variable Aperture Collimator enables delivery of beams in 12 unique sizes with a single collimator, which significantly reduces treatment times and the total radiation dose delivered to the patient.

        4D Treatment Optimization and Planning System.    The 4D Treatment Optimization and Planning System is designed to optimize treatment by taking into account the movement of the tumor and the movement and change in shape of the surrounding tissue, thereby minimizing margins and radiation exposure to healthy tissue.

        MultiPlan Treatment Planning System.    The MultiPlan System generates a series of beams and calculates the dose that must be delivered from each beam and provides these as a treatment plan. The treatment plan defines the pattern of radiation that meets the physician's dose prescription. The MultiPlan system uses input images from multiple modalities, including computed tomography, or CT, magnetic resonance imaging, or MRI, positron emission tomography, or PET, and 3D angiography.

        CyberKnife Data Management System.    The results of a patient's treatment delivery, such as dose delivered from each beam, each path and each fraction, and details about the images acquired and corrections applied are recorded and stored in the data management system.

        Radiosurgery DICOM Interface.    Data management systems, such as the CyberKnife Data Management System, utilize industry-standard interface protocols, such as DICOM, to export patient information to the OIS. With the Radiosurgery DICOM Interface, the CyberKnife Systems complete the Oncology Information System (OIS) electronic medical record with a comprehensive export of the radiosurgery treatment history.

        Monte Carlo Dose Calculation.    Our Monte Carlo Dose Calculation software uses Monte Carlo simulation algorithms in treatment planning and dose calculation. Our Monte Carlo dose calculation algorithm can perform the necessary treatment planning calculations in a significantly shorter time frame as compared to conventional Monte Carlo dose calculation methods, thereby accelerating the treatment planning process.

        QuickPlan.    Our QuickPlan® technology allows for a complete treatment plan to be generated automatically, and the results presented to the user for review.

        PlanTouch.    PlanTouch™is the first commercially available, fully integrated software application in radiation oncology that allows physicians to remotely review and approve patients' radiation treatment plans on the iPad.

        InCise™ Multi-leaf Collimator.    The InCise multi-leaf collimator is designed specifically for SRS and SBRT treatments, giving the system the capability to extend its radiosurgical accuracy into a broader field of applications, meeting radiosurgery and radiotherapy needs. With the InCise MLC, the CyberKnife M6 Series can be used to treat larger and irregular tumors more efficiently. Currently, our internal testing of the InCise MLC has been concluded to our satisfaction and we have begun our

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evaluation of the MLC in the field, with the goal of ensuring that we introduce a clinically effective and reliable collimator.

The TomoTherapy Systems

        The TomoTherapy Systems include the new TomoTherapy H Series with configuration options of TomoH™, TomoHD™ and TomoHDA™. The TomoTherapy Systems consist of fully integrated and versatile radiation therapy systems used by healthcare professionals in the treatment of a wide range of cancer types. We believe the TomoTherapy Systems offer clinicians and patients the following benefits:

        Versatile treatment capabilities.    The TomoTherapy Systems' ring gantry platform enables precise and efficient treatments with a high degree of dose conformality. The high-speed binary MLC is integrated with the linac and consists of 64 individual low leakage tungsten leaves that move across the beam to either block or allow the passage of radiation, effectively shaping the beam as it is emitted. The combination of the ring gantry and the high-speed MLC (which we refer to as TomoHelicalTM) allow treatment to be delivered continuously in a 360-degree helical pattern around the patient's body. Moreover, the TomoDirectTM feature provides the TomoTherapy Systems added versatility to provide high quality, fixed angle beams for those cases suited to simple tangential beam radiation delivery. In addition, all TomoTherapy Systems enable an operator to provide non-isocentric three-dimensional conformal image-guided IMRT or stereotactic treatments within a typical cylindrical volume of 80 centimeters in diameter and up to 135 centimeters in length. This expansive treatment field allows large areas of the body to be treated in a single session and the treatment of widely distant tumors. The TomoTherapy Systems' versatility, efficiency and precision offer clinicians an extensive range of effective treatment possibilities.

        Daily, quantitative imaging for better identification of tumors, dose verification and treatment planning.    The TomoTherapy Systems offer integrated quantitative CT imaging capabilities, which depict the density of tumors and healthy tissue more accurately than traditional radiation therapy systems. Our integrated mega-voltage computed tomography, or MVCT, which we market as our CTrue™ imaging technology, uses a low-intensity, fan beam CT to collect quantitative images prior to each treatment. These images allow lung tissue, fat, muscle and bone to be clearly distinguished. In addition, because of the low radiation dose involved, the clinician can collect daily, quantitative images, which can be used to monitor changes in the patient's internal anatomy and quickly adapt the plan if deemed clinically necessary. We believe daily, quantitative, relatively low dose images are essential to optimizing patient treatment by enabling clinicians to adapt the treatment plan in response to anatomical changes.

        Integrated treatment system for precise radiation delivery.    We believe the integration of our CT imaging technology, treatment planning and helical delivery mode of radiation beams enables highly accurate and precise radiation delivery. Our adaptive software allows clinicians to establish at the time of treatment the contours of a tumor and any sensitive structures at risk. The TomoTherapy Systems use a highly efficient dose optimization algorithm to ensure the radiation beam conforms to the patient's tumor and minimizes exposure to sensitive healthy tissue structures, providing a highly-targeted dose distribution. These features significantly benefit patients by increasing the radiation delivered to cancerous tissues while reducing damage to nearby healthy tissues.

        Efficient clinical workflow for Image Guided Radiation Therapy, or IGRT, and adaptive radiation therapy.    The TomoTherapy Systems integrate into a single system all of the key elements for radiation therapy, including treatment planning, CT image-guided patient positioning, treatment delivery, quality assurance and adaptive planning. The imaging and treatment planning capabilities of many traditional systems are more modular or require cumbersome add-ons or separate treatment planning systems that result in clinicians taking more steps between scanning, planning and treatment of patients. Conversely, the integrated imaging and treatment features of the TomoTherapy Systems allow clinicians to scan, plan and treat cancer patients efficiently. Daily images can be easily accessed remotely, via our

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TomoPortal™ web-enabled interface, to verify patient positioning and collaboratively define patient treatment strategies. Taking advantage of this integration capability, our StatRT™ software allows the full radiation therapy process—CT scanning, treatment planning and treatment delivery—to be completed rapidly.

        Low barriers to installation and implementation.    All external beam radiation systems must be housed in rooms which have special radiation shielding to capture any radiation not absorbed by the patient. The TomoTherapy Systems' size and self-contained design allow customers to retrofit it into existing treatment rooms previously used for legacy radiation therapy systems and avoid, or reduce, the significant construction costs that can be associated with building new, larger treatment rooms, which are often required to install many other radiation therapy systems. With both imaging and radiation delivery capabilities in its ring gantry, the TomoTherapy Systems require less space than other linac systems, which use large moving arms to position the linac or incorporate adjacent imaging equipment used for treatment planning. In addition, because the TomoTherapy Systems have an integrated radiation beam stop, which captures radiation that passes through the patient, it requires less radiation shielding in treatment room walls as compared to the shielding required by a traditional system. We also preassemble, test and commission each TomoTherapy Systems at our manufacturing facility, and ship the system almost fully assembled. This assembly process typically allows radiation "beam on" within four days after delivery and first patient treatments to begin within 30 to 45 days after delivery.

        Platform for further technological advancements in adaptive radiation therapy.    We believe the TomoTherapy Systems are uniquely positioned to enable truly adaptive radiation therapy because of its unique ability to provide daily, quantitative images, high speed delivery of radiation from fixed beam angles or helically from 360 degrees around the body and real-time verification of the dose received by the patient. We believe the combination of these design features and our integrated treatment planning and optimization software will allow us to continue to enhance the TomoTherapy Systems' adaptive capabilities to enable clinicians to routinely and easily adjust a patient's treatment as needed, thereby remaining true to the intent of the original treatment plan.

        In addition to the functionality listed above, the TomoTherapy Systems may be enhanced with the following product options: TomoDirectTM Treatment Mode; Planned Adaptive; OIS Connect™; TomoTherapy Remote Software Solutions (Remote Planning and TomoPortal); TomoQuality Assurance (TQATM) Package; VoLOTM Technology; TomoEdge Dynamic Jaws. Key features of these options are as follow:

        TomoDirect Treatment Mode.    The TomoDirect mode is a discrete angle, non-rotational delivery mode for the TomoTherapy Systems that allows the user to create a treatment plan that defines up to twelve target-specific gantry angles. Treatment planning is completed rapidly by all beams for each target being delivered sequentially with the couch passing through the bore of the system at an appropriate speed for each gantry angle. The TomoDirectTM mode enables users to plan and treat routine cases with greater efficiency, while achieving the quality of TomoTherapy's unique beamlet-based delivery.

        OIS Connect software option.    The OIS Connect software option is a DICOM standard-based solution that provides the ability to interface a TomoTherapy Systems to a compatible OIS.

        Tomo Quality Assurance (TQA) package.    The TQA application offers trending and reporting of many system and dosimetric parameters that allow physicists to monitor the performance of their TomoTherapy Systems.

        VoLO Technology.    The VoLO Technology is a treatment planning system that leverages advanced graphics processing technology and a new calculation algorithm to increase clinical efficiency, throughput and flexibility in developing even the most complex radiation plans. This solution features

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high-speed parallel processing for both dose calculation and optimization, based on Graphics Processing Unit (GPU) technology. In addition, VoLO represents the first use of a new Non-Voxel Broad Beam (NVBB) calculation algorithm that takes advantage of both the GPU's unparalleled speed and the TomoTherapy Systems unique beamlet radiation delivery system to develop dose distributions from the perspective of each beamlet (up to tens of thousands in any given plan) as they pass through the patient's body. VoLO technology empowers clinicians to create highly customized treatment plans in less time, with greater flexibility to work interactively and in real time to efficiently develop the best IMRT treatment plans for even the most complex cases.

        TomoEdge Dynamic Jaws.    TomoEdge is standard on the TomoTherapy HDA model and is also available on H and HD models. By dynamically varying the width of the collimator jaws during treatment delivery, dose to normal tissues immediately adjacent to the tumor is reduced, contributing to the minimization of radiation side effects. Additionally, overall irradiation time is shortened because the jaws are allowed to open more broadly throughout much of the delivery. The resulting gains in treatment quality and speed expand the TomoTherapy Systems clinical and market reach within the conventional and stereotactic radiotherapy spaces.

Sales and Marketing

        In the United States, while we primarily market to customers directly through our sales organization, we also market to customers through sales agents and group purchasing organizations. Outside the United States, we market to customers directly and through distributors. We have sales and service offices in many countries in Europe, Japan and other countries in Asia, South America, and throughout the world.

        In direct sales markets, we employ a combination of territory sales managers, product specialists, training specialists and marketing managers. Territory sales managers and product specialists are responsible for selling the systems to hospitals and stand-alone treatment facilities. Our marketing managers help market our current products and work with our engineering group to identify and develop upgrades and enhancements for our suite of products. Our training specialists train radiation oncologists, surgeons, physicists, dosimetrists and radiation therapists. Additionally, we have sales specialists dedicated to selling upgrades and service to our installed base customers.

        In addition to marketing to hospitals and stand-alone treatment facilities, we market to radiation oncologists, neurosurgeons, general surgeons, oncology specialists and other referring physicians. We intend to continue to increase our focus on marketing and education efforts to surgical specialists and oncologists responsible for treating tumors throughout the body. Our marketing activities also include efforts to inform and educate cancer patients about the benefits of the CyberKnife and TomoTherapy Systems.

        Under our standard distribution agreement, we generally appoint an exclusive distributor for a specific country. We typically also retain the right to distribute the CyberKnife and TomoTherapy Systems in such territories, though we remain bound by certain agreements entered into by TomoTherapy prior to our acquisition that did not retain such rights in certain jurisdictions. Our distributors generally provide the full range of service and sales capabilities, although we may provide installation and service support for certain distributors.

        From time to time, we may provide our CyberKnife Systems' linac for use in non-medical areas. These areas may include non-destructive testing, visual inspection and other potential applications. We do not currently expect these non-medical uses to represent a significant portion of our revenue in the near term nor have they historically represented a significant portion of our revenues.

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Manufacturing

        We purchase major components for each of our products from outside suppliers, including the robotic manipulator, treatment couches, gantry, magnetrons and computers. We closely monitor supplier quality, delivery performance and conformance to product specifications, and we also expect suppliers to contribute to our efforts to improve our manufacturing cost and quality.

        Some of the components are obtained from single-source suppliers. These components include the gantry, couch, magnetron and solid state modulator for the TomoTherapy Systems and the robot, couch, magnetron and MLC for the CyberKnife Systems. In most cases, if a supplier was unable to deliver these components, we believe we would be able to find other sources for these components subject to any regulatory qualifications, if required. In the event of a disruption in any of these suppliers' ability to deliver a component, we would need to secure a replacement supplier. Additionally, any disruption or interruption of the supply of key subsystems could result in increased costs and delays in deliveries of our treatment systems, which could adversely affect our reputation and results of operations. To help mitigate these risks, we negotiate long-term supply contracts or submit long-term orders and forecasts to our single-source suppliers with the goal that our demand can be satisfied and any capacity problem can be mitigated.

        Currently, we manufacture our CyberKnife Systems and corresponding linacs at our Sunnyvale, California facility. At the end of fiscal 2014, we began transitioning production of our CyberKnife Systems, excluding certain linear accelerator production, from our manufacturing facilities in Sunnyvale, California, to our facilities in Madison, Wisconsin, and expect to finish the transition by the end of calendar year 2014. We manufacture our TomoTherapy Systems in Madison, Wisconsin. We manufacture the linac for our TomoTherapy Systems at our Chengdu, China facility. Our facilities employ state-of-the-art manufacturing techniques and equipment. Our company-wide quality systems are certified independently and compliant to the internationally recognized quality system standard for medical devices, International Standards Organization, or ISO, 13485:2003, and the Quality System regulations enforced by the FDA. We believe our manufacturing facilities will be adequate for our expected growth and foreseeable future demands for at least the next three years.

        The manufacturing processes at our facilities include fabrication, subassembly, assembly, system integration and final testing. Our manufacturing personnel consist of fabricators, assemblers and technicians supported by production engineers as well as planning and supply chain managers. Our quality assurance program includes various quality control measures from inspection of raw material, purchased parts and assemblies through on-line inspection. We have also incorporated lean manufacturing techniques to improve manufacturing flow and efficiency. Lean manufacturing techniques include reducing wasteful and extraneous activities, balancing assembly and test flow, as well as better utilizing production assets and resources.

Intellectual Property

        The proprietary nature of, and protection for, our products, product components, processes and know-how are important to our business. We seek patent protection in the United States and internationally for our systems and other technology where available and when appropriate. We may also in-license the technology, inventions and improvements that we consider important to the development of our business. In addition, we also rely upon trade secrets, know-how, trademarks, copyright protection, as well as confidentiality agreements with employees, consultants and other third parties, to protect our proprietary rights and to develop and maintain our competitive position.

        As of June 30, 2014, we held exclusive field of use licenses or ownership of approximately 313 U.S. and foreign patents, and approximately 95 U.S. and foreign patent applications. These patents and applications cover various components and techniques incorporated into the CyberKnife and TomoTherapy Systems, or which may be incorporated into new technologies under current

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development, all of which we believe will allow us to maintain a competitive advantage in the field of radiation therapy systems. We cannot be certain that any patents will be issued from any of our pending patent applications, nor can we be certain that any of our existing patents or any patents that may be granted to us in the future will provide us with protection.

        We periodically monitor the activities of our competitors and other third parties with respect to their use of intellectual property.

Research and Development

        Continued innovation is critical to our future success. Our current product development activities include projects expanding clinical applications, driving product differentiation, and continually improving the usability, interoperability, reliability, and performance of our products. We continue to seek to develop innovative technologies so that we can increase our sales. Some of our product improvements have been discussed above under the heading "Products."

        Research activities strive to enable new product development opportunities by developing new technologies and advancing areas of existing core technology such as next generation linac, adaptive therapy, patient imaging, motion management, or treatment planning capabilities.

        The modular design of our systems supports rapid development for new clinical capabilities and performance enhancements by generally allowing each subsystem to evolve within the overall platform design. Access to regular product upgrades protects customer investment in the system, facilitates the rapid adoption of new features and capabilities among existing installed base customers, and drives increasing value in our multiyear service plans. These upgrades will generally consist of software and hardware enhancements designed to increase the ease of use of our systems, improve the speed and accuracy of patient treatment and meet other customer needs.

        As of June 30, 2014, we had 206 employees in our research and development departments. Research and development expenses for the fiscal years ended June 30, 2014, 2013 and 2012 were $53.7 million, $66.2 million and $81.3 million, respectively. We anticipate research and development expenses for fiscal 2015 to be higher than in fiscal 2014 based on the current schedule of our development projects.

        A key component of our research and development program is our collaboration with research programs at selected hospitals, cancer treatment centers, academic institutions and research institutions worldwide. Our agreements with these third-party collaborators generally require us to make milestone-based payments during the course of a particular project and often also require that we make up-front payments to fund initial activities. Generally, we obtain non-exclusive worldwide rights to commercialize results from the collaboration with an option to negotiate an exclusive license. For inventions resulting from the collaboration owned or exclusively licensed by Accuray, we generally grant a royalty-free license for the purpose of continuing the institution's research and development, and from time to time, we also grant broader licenses. Our research collaboration programs include work on clinical protocols and hardware and software developments. We also work with suppliers to develop new components in order to increase the reliability and performance of our products and seek opportunities to acquire or invest in the research of other parties where we believe it is likely to benefit our existing or future products.

Competition

        The medical device industry in general and the non-invasive cancer treatment field in particular are subject to intense and increasing competition and rapidly evolving technologies. Because our products often have long development and regulatory clearance and approval cycles, we must anticipate changes in the marketplace and the direction of technological innovation and customer demands. To

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compete successfully, we will need to continue to demonstrate the advantages of our products and technologies over well-established alternative procedures, products and technologies, and convince physicians and other healthcare decision makers of the advantages of our products and technologies. Traditional surgery and other forms of minimally invasive procedures, brachytherapy, chemotherapy and other drugs remain alternatives to the CyberKnife and TomoTherapy Systems.

        New product sales in this competitive market are primarily dominated by two companies: Elekta AB and Varian Medical Systems, Inc., or Varian. Some manufacturers of standard linac systems, including Varian and Elekta, have products that can be used in combination with body and/or head frame systems and image-guidance systems to perform both radiosurgical and radiotherapy procedures. Other companies that compete with Accuray to a lesser extent include Mitsubishi Heavy Industries, BrainLAB AG, and ViewRay Inc.

        Furthermore, many government, academic and business entities are investing substantial resources in research and development of cancer treatments, including surgical approaches, radiation treatment, MRI-guided radiotherapy systems, proton therapy systems, drug treatment, gene therapy, and other approaches. Successful developments that result in new approaches for the treatment of cancer could reduce the attractiveness of our products or render them obsolete.

        Our future success will depend in large part on our ability to establish and maintain a competitive position in current and future technologies. Rapid technological development may render the CyberKnife and TomoTherapy Systems and their technologies obsolete. Many of our competitors have or may have greater corporate, financial, operational, sales and marketing resources, and more experience in research and development than we have. We cannot assume that our competitors will not succeed in developing or marketing technologies or products that are more effective or commercially attractive than our products or that would render our technologies and products obsolete or less useful. We may not have the financial resources, technical expertise, marketing, distribution or support capabilities to compete successfully in the future. Our competitive position also depends, among other things, on:

    Widespread awareness, acceptance and adoption of our products by the radiation oncology and cancer therapy markets;

    Innovations that improve the effectiveness and productivity of our systems' treatment processes and enable them to address emerging customer needs;

    Availability of reimbursement coverage from third-party payors (including insurance companies, governments, and/or others) for procedures performed using our systems;

    Published, peer-reviewed data supporting the efficacy and safety of our systems;

    Limiting the time required from proof of feasibility to routine production;

    Limiting the time period and cost of regulatory approvals or clearances;

    The manufacture and delivery of our products in sufficient volumes on time, and accurately predicting and controlling costs associated with manufacturing, installation, warranty and maintenance of the products;

    Our ability to attract and retain qualified personnel;

    The extent of our intellectual property protection or our ability to otherwise develop proprietary products and processes;

    Securing sufficient capital resources to expand both our continued research and development, and sales and marketing efforts; and

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    Obtaining and maintaining any necessary United States or foreign regulatory approvals or clearances.

        Our customers' equipment purchase considerations typically include reliability, treatment quality, service capabilities, patient throughput, price, payment terms and equipment supplier viability. We believe we compete favorably with our competitors on price and value based upon the technology offered by our treatment systems. We strive to provide a technologically superior product that covers substantially all aspects of radiation therapy to deliver precise treatments with high-quality clinical outcomes that meet or exceed customer expectations.

        In addition to competition from technologies performing similar functions as our treatment systems, competition also exists for the limited capital expenditure budgets of our customers. For example, our treatment systems may compete with other equipment required by a radiation therapy department for financing under the same capital expenditure budget, which is typically limited. A purchaser, such as a hospital or cancer treatment center, may be required to select between the two items of capital equipment. Our ability to compete may also be adversely affected when purchase decisions are based solely upon price, since our products are premium-priced systems due to their higher level of functionality and performance.

US Reimbursement

        In the United States, healthcare providers that purchase capital equipment such as the CyberKnife and TomoTherapy Systems generally rely on government and private third-party payors for reimbursement for the healthcare treatment and services they provide. Examples of these types of payors include Medicare, Medicaid, private health insurance plans, and health maintenance organizations, which reimburse all or a portion of the cost of treatment, as well as related healthcare services. Reimbursement involves three components: coverage, coding and payment.

Coverage

        Approximately 55% of patients treated in the United States with the CyberKnife and TomoTherapy Systems are covered through Medicare/Medicaid, rather than through private insurance. There are currently no national coverage determinations in place under Medicare for CyberKnife or TomoTherapy treatment. Coverage criteria for treatment with CyberKnife and TomoTherapy are outlined in local determinations or, in the absence of a formal policy, treatment is covered as long as it is considered reasonable and necessary. The most common indications covered by Medicare in local coverage determinations for robotic radiosurgery are primary and metastatic tumors in the brain, spine, lung, liver, kidney, pancreas, adrenal gland, prostate as well as other cancers that have failed previous treatment. Intensity Modulated Radiation Therapy is generally covered for cancers of the brain, spine, head and neck, prostate, thoracic, abdominal and retroperitoneal regions, other cancers (e.g. breast) meeting certain criteria, and tumors requiring re-irradiation or where dose tolerance may be exceeded with conventional treatment.

        Commercial payor policies vary with most covering radiosurgery for tumors in the brain, spine, lung, and increasingly prostate. Other indications such as renal, liver, and pancreatic cancers are also covered by some national and local commercial payors. IMRT and 3D Conformal are typically covered by commercial payors for the indications covered by Medicare.

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Coding

        The codes that are used to report radiosurgery treatment delivery in 2014 for the hospital outpatient department are Current Procedural Terminology (CPT) codes 77372 and 77373 for single fraction intracranial radiosurgery and multi-session radiosurgery/stereotactic body radiation therapy. For 2015, no significant changes have been proposed by Centers for Medicare and Medicaid Services (CMS) for multisession SRS/SBRT over 2014. For single session cranial SRS, CMS proposes to pay for all services delivered on the day of treatment delivery through a comprehensive Ambulatory Payment Classification (APC). For freestanding centers, CMS has proposed to eliminate the Healthcare Common Procedural Codes (HCPCs) G codes that are currently regionally priced by Medicare Contractors and adopt CPT codes 77372 and 77373, currently in use in the hospital outpatient setting. CMS has not proposed a comprehensive "lump sum" payment scheme as it has proposed for single session cranial SRS in the hospital. IMRT delivery is billed under CPT code 77418. 3D Conformal treatment is typically billed by TomoTherapy users under CPT code 77413. In 2015 CMS will likely implement new codes for IMRT and 3D conformal which will reflect simple and complex treatment for IMRT and simple, intermediate, and complex treatment with 3D conformal. Both HCPCS and CPT codes are still listed as valid codes in commercial payer policies. Other codes are used to report treatment planning, dosimetry, treatment management, and other procedures routinely performed for treating radiosurgery or radiotherapy patients.

Payment

        The majority of procedures using the CyberKnife and TomoTherapy Systems are performed in the hospital outpatient department. Medicare payment for CyberKnife and TomoTherapy procedures delivered in the hospital outpatient setting is developed by CMS, which calculates rates based on costs submitted by hospitals to perform outpatient procedures. Every year, CMS reviews hospital cost data for outpatient procedures, including radiosurgery and radiotherapy, makes adjustments to rates for the following year, and publishes national unadjusted averages for all procedures eligible for payment in this site of service.

        Payment for treatment with CyberKnife and TomoTherapy Systems are also available in the freestanding center settings. In 2014, the primary treatment delivery codes for robotic radiosurgery are carrier priced under Medicare and range from low payment to payment at parity with hospital outpatient departments to slightly above outpatient rates. TomoTherapy procedures are set by CMS and the American Medical Association nationally, with adjustments to account for geographic market variations.

        The federal government and Congress review and adjust rates annually, and from time to time consider various Medicare and other healthcare reform proposals that could significantly affect both private and public reimbursement for healthcare services, including radiotherapy and radiosurgery, in hospitals and free-standing clinics. In the past, we have seen our customers' decision-making process complicated by the uncertainties surrounding reimbursement rates for radiotherapy and radiosurgery in the United States. State government reimbursement for services is determined pursuant to each state's Medicaid plan, which is established by state law and regulations, subject to requirements of federal law and regulations.

Foreign Reimbursement

        Internationally, reimbursement and healthcare payment systems vary from country to country and include single-payor, government-managed systems as well as systems in which private payors and government-managed systems exist side-by-side. In general, the process of obtaining coverage approvals has been slower outside of the United States. Our ability to achieve adoption of our treatment systems,

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and significant sales volume in international markets, will depend in part on the availability of reimbursement for procedures performed using our products.

Regulatory Matters

Domestic Regulation

        Our products and software are medical devices subject to regulation by the FDA, as well as other regulatory bodies. FDA regulations govern the following activities that we perform and will continue to perform to ensure medical products distributed domestically or exported internationally are safe and effective for their intended uses:

    Product design and development;

    Document and purchasing controls;

    Production and process controls;

    Labeling and packaging controls;

    Product storage;

    Recordkeeping;

    Servicing;

    Corrective and preventive action and complaint handling;

    Pre-market clearance or approval;

    Advertising and promotion; and

    Product sales and distribution.

        FDA pre-market clearance and approval requirements.    Unless an exemption applies, each medical device we wish to commercially distribute in the United States will require either 510(k) clearance or pre-market approval from the FDA. The FDA classifies medical devices into one of three classes. Devices deemed to pose lower risks are placed in either class I or II, which requires the manufacturer to submit to the FDA a pre-market notification requesting permission to commercially distribute the device, known as 510(k) clearance. Some low risk devices are exempted from this requirement. Devices deemed by the FDA to pose the greatest risks, such as life-sustaining, life-supporting or implantable devices, or devices deemed not substantially equivalent to a previously cleared 510(k) device, are placed in class III, requiring pre-market approval. All of our current products are class II devices requiring 510(k) clearances.

        510(k) clearance pathway.    When a 510(k) clearance is required, we must submit a pre-market notification demonstrating that our proposed device is substantially equivalent to a previously cleared and legally marketed 510(k) device or a device that was in commercial distribution before May 28, 1976 for which the FDA has not yet called for the submission of pre-market approval applications, or PMA. By regulation, the FDA is required to clear or deny a 510(k) pre-market notification within 90 days of submission of the application. Clearance generally takes longer as the FDA may require further information, including clinical data, to make a determination regarding substantial equivalence.

        In January 2002, we received 510(k) clearance for the TomoTherapy Hi-Art System intended to be used as an integrated system for the planning and delivery of IMRT for the treatment of cancer. In August 2008, we received 510(k) clearance for our TomoDirectTM System.

        In July 1999, we received 510(k) clearance for the CyberKnife System for use in the head and neck regions of the body. In August 2001, we received 510(k) clearance for the CyberKnife System to

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provide treatment planning and image guided stereotactic radiosurgery and precision radiotherapy for lesions, tumors and conditions anywhere in the body where radiation treatment is indicated. In April 2002, we received 510(k) clearance for the Synchrony Motion Tracking System as an option to the CyberKnife System, intended to enable dynamic image guided stereotactic radiosurgery and precision radiotherapy of lesions, tumors and conditions that move under influence of respiration.

        Pre-market approval (PMA) pathway.    A PMA must be submitted to the FDA if the device is not eligible for the 510(k) clearance process. A PMA must be supported by extensive data, including but not limited to, technical, preclinical, clinical trials, manufacturing and labeling to demonstrate reasonable evidence of the device's safety and efficacy to the FDA's satisfaction. Currently, no device we have developed and commercialized has required pre-market approval.

        Product modifications.    After a device receives 510(k) clearance or a PMA approval, any modification that could significantly affect its safety or effectiveness, or that would constitute a significant change in its intended use, will require a new clearance or approval. The FDA has issued draft guidance that, if finalized and implemented, will result in manufacturers needing to seek a significant number of new clearances for changes made to legally marketed devices.

        We have modified aspects of our CyberKnife and TomoTherapy families of products since receiving regulatory clearance, and we have applied for and obtained additional 510(k) clearances for these modifications when we determined such clearances were required. The FDA requires each manufacturer to make this determination initially, but the FDA can review any such decision and can disagree with a manufacturer's determination. If the FDA disagrees with our determination not to seek a new 510(k) clearance or PMA approval, the FDA may require us to seek 510(k) clearance or PMA approval. The FDA could also require us to cease marketing and distribution and/or recall the modified device until 510(k) clearance or pre-market approval is obtained. Also, in these circumstances, we may be subject to significant regulatory fines or penalties. During our fiscal year ended June 30, 2013, we submitted one 510(k) clearance notification for modifications made to the operation of the CyberKnife System and one 510(k) clearance notification for the TomoTherapy System. The CyberKnife submission was cleared on October 26, 2012 and the TomoTherapy submission was cleared on August 29, 2012.

        Pervasive and continuing regulation.    After a device is placed on the market, numerous regulatory requirements apply. These include:

    Quality System Regulation, or QSR, which require manufacturers, including third-party manufacturers, to follow stringent design, testing, documentation and other quality assurance procedures during product design and throughout the manufacturing process;

    Labeling regulations and FDA prohibitions against the promotion of products for uncleared, unapproved or off-label uses; and

    Medical device reporting regulations, which require that manufacturers report to the FDA if their device may have caused or contributed to a death or serious injury or malfunctioned in a way that would likely cause or contribute to a death or serious injury if the malfunction were to recur.

        The FDA has broad post-market and regulatory enforcement powers. We are subject to unannounced inspections by the FDA and the Food and Drug Branch of the California Department of Health Services to determine our compliance with the QSR and other regulations, and these inspections may include the manufacturing facilities of some of our subcontractors. In June 2012, during an inspection performed by the FDA at our Sunnyvale facility, several minor observations of non-compliance were made. The initial classification of the inspection is considered to be Voluntary Action Indicated. We are undertaking corrective action in response to the FDA's observations and the FDA will reevaluate our correction actions upon reinspection. We believe there were no observations

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that involved a material violation of regulatory requirements. In July 2012, the FDA completed an inspection at our Madison facility, and no observations were noted. We believe we are in substantial compliance with the QSR. Failure to comply with applicable regulatory requirements can result in enforcement action by the FDA, which may include any of the following sanctions:

    Fines, injunctions, consent decrees and civil penalties;

    Recall or seizure of our products;

    Operating restrictions, partial suspension or total shutdown of production;

    Refusing our requests for 510(k) clearance or pre-market approval of new products or new intended uses;

    Withdrawing 510(k) clearance or pre-market approvals that are already granted; and

    Criminal prosecution.

        The FDA also has the authority to require us to repair, replace or refund the cost of any medical device that we have manufactured or distributed. If any of these events were to occur, they could have a material adverse effect on our business.

        Radiological health.    Because our CyberKnife and TomoTherapy Systems contain both laser and X-ray components, and because we assemble these components during manufacturing and service activities, we are also regulated under the Electronic Product Radiation Control Provisions of the Federal Food, Drug, and Cosmetic Act. This law requires laser and X-ray products to comply with regulations and applicable performance standards, and manufacturers of these products to certify in product labeling and reports to the FDA that their products comply with all such standards. The law also requires manufacturers to file new product reports, and to file annual reports and maintain manufacturing, testing and sales records, and report product defects. Various warning labels must be affixed. Assemblers of diagnostic X-ray systems are also required to certify in reports to the FDA, equipment purchasers, and where applicable, to state agencies responsible for radiation protection, that diagnostic and/or therapeutic X-ray systems they assemble meet applicable requirements. Failure to comply with these requirements could result in enforcement action by the FDA, which can include injunctions, civil penalties, and the issuance of warning letters.

        Fraud and abuse laws.    We are subject to various federal and state laws pertaining to healthcare fraud and abuse, including anti-kickback laws and physician self-referral laws. Violations of these laws are punishable by significant criminal and civil sanctions, including, in some instances, exclusion from participation in federal and state healthcare programs, including Medicare and Medicaid. Because of the far-reaching nature of these laws, there can be no assurance that we would not be required to alter one or more of our practices to be in compliance with these laws. Evolving interpretations of current laws, or the adoption of new federal or state laws or regulations could adversely affect many of the arrangements we have with customers and physicians. In addition, there can be no assurance that the occurrence of one or more violations of these laws or regulations would not result in a material adverse effect on our financial condition and results of operations.

        Anti-kickback laws.    Our operations are subject to broad and changing federal and state anti-kickback laws. The Office of the Inspector General of the Department of Health and Human Services, or the OIG, is primarily responsible for enforcing the federal Anti-Kickback Statute and generally for identifying fraud and abuse activities affecting government programs. The federal Anti-Kickback Statute prohibits persons from knowingly and willfully soliciting, receiving, offering or providing remuneration directly or indirectly to induce either the referral of an individual, or the furnishing, recommending, or arranging of a good or service, for which payment may be made under a federal healthcare program such as Medicare and Medicaid. "Remuneration" has been broadly

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interpreted to include anything of value, including such items as gifts, discounts, the furnishing of supplies or equipment, credit arrangements, waiver of payments, and providing anything of value at less than fair market value.

        Penalties for violating the federal Anti-Kickback Statute include criminal fines of up to $25,000 and/or imprisonment for up to five years for each violation, civil fines of up to $50,000 and possible exclusion from participation in federal healthcare programs such as Medicare and Medicaid. Many states have adopted prohibitions similar to the federal Anti-Kickback Statute, some of which apply to the referral of patients for healthcare services reimbursed by any source, not only by the Medicare and Medicaid programs, and do not include comparable exceptions.

        The OIG has issued safe harbor regulations which set forth certain activities and business relationships that are deemed safe from prosecution under the federal Anti-Kickback Statute. There are safe harbors for various types of arrangements, including, without limitation, certain investment interests, leases and personal services and management contracts. The failure of a particular activity to comply in all regards with the safe harbor regulations does not mean that the activity violates the federal Anti-Kickback Statute or that prosecution will be pursued. However, conduct and business arrangements that do not fully satisfy each applicable safe harbor may result in increased scrutiny by government enforcement authorities such as the OIG.

        The OIG has identified the following arrangements with purchasers and their agents as ones raising potential risk of violation of the federal Anti-Kickback Statute:

    Discount and free good arrangements that are not properly disclosed or accurately reported to federal healthcare programs;

    Product support services, including billing assistance, reimbursement consultation and other services specifically tied to support of the purchased product, offered in tandem with another service or program (such as a reimbursement guarantee) that confers a benefit to the purchaser;

    Educational grants conditioned in whole or in part on the purchase of equipment, or otherwise inappropriately influenced by sales and marketing considerations;

    Research funding arrangements, particularly post-marketing research activities, that are linked directly or indirectly to the purchase of products, or otherwise inappropriately influenced by sales and marketing considerations; and

    Other offers of remuneration to purchasers that are expressly or impliedly related to a sale or sales volume, such as "prebates" and "upfront payments," other free or reduced-price goods or services, and payments to cover costs of "converting" from a competitor's products, particularly where the selection criteria for such offers vary with the volume or value of business generated.

        We have a variety of financial relationships with physicians who are in a position to generate business for us. For example, physicians who own our stock also provide medical advisory and other consulting and personal services. Similarly, we have a variety of different types of arrangements with our customers. In the case of our former placement program, certain services and upgrades were provided without additional charge based on procedure volume. In the past, we have also provided loans to our customers. We also provide research grants to customers to support customer studies related to, among other things, our CyberKnife and Tomotherapy Systems.

        If our past or present operations are found to be in violation of the federal Anti-Kickback Statute or similar government regulations to which we or our customers are subject, we or our officers may be subject to the applicable penalty associated with the violation, including significant civil and criminal penalties, damages, fines, imprisonment, and exclusion from the Medicare and Medicaid programs. The impact of any such violation may lead to curtailment or restructuring of our operations. Any penalties, damages, fines, or curtailment or restructuring of our operations could adversely affect our ability to

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operate our business and our financial results. The risk of our being found in violation of these laws is increased by the fact that some of these laws are open to a variety of interpretations. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses, divert our management's attention from the operation of our business and damage our reputation. If an enforcement action were to occur, our reputation and our business and financial condition could be harmed, even if we were to prevail or settle the action. Similarly, if the physicians or other providers or entities with which we do business are found to be non-compliant with applicable laws, they may be subject to sanctions, which could also have a negative impact on our business.

        Transparency laws.    The Physician Payment Sunshine Act, or the Sunshine Act, which was enacted by Congress as part of the Patient Protection and Affordable Care Act on December 14, 2011, requires each applicable manufacturer, which includes medical device companies such as Accuray, to track and report to the federal government on an annual basis all payments and other transfers of value from such applicable manufacturer to U.S. licensed physicians and teaching hospitals as well as physician ownership of such applicable manufacturer's equity, in each case subject to certain statutory exceptions. Such data will be made available by the government on a publicly searchable website. Failure to comply with the data collection and reporting obligations imposed by the Sunshine Act can result in civil monetary penalties ranging from $1,000 to $10,000 for each payment or other transfer of value that is not reported (up to a maximum of $150,000 per reporting period) and from $10,000 to $100,000 for each knowing failure to report (up to a maximum of $1 million per reporting period). In addition, we are subject to similar state and foreign laws related to the tracking and reporting of payments and other transfers of value to healthcare professionals. These laws require or will require that we implement the necessary and costly infrastructure to track and report such payments and transfers of value. Failure to comply with these new tracking and reporting laws could subject us to significant civil monetary penalties.

        Physician self-referral laws.    We are also subject to federal and state physician self-referral laws. The federal Ethics in Patient Referrals Act of 1989, commonly known as the Stark Law, prohibits, subject to certain exceptions, physician referrals of Medicare and Medicaid patients to an entity providing certain "designated health services" if the physician or an immediate family member has any financial relationship with the entity. The Stark Law also prohibits the entity receiving the referral from billing any good or service furnished pursuant to an unlawful referral.

        In addition, in July 2008, CMS issued a final rule implementing significant amendments to the regulations under the Stark Law. The final rule, which was effective October 1, 2009, imposes additional limitations on the ability of physicians to refer patients to medical facilities in which the physician or an immediate family member has an ownership interest for treatment. Among other things, the rule provides that leases of equipment between physician owners that may refer patients and hospitals must be on a fixed rate, rather than a per use basis. Prior to enactment of the final rule, physician owned entities had increasingly become involved in the acquisition of medical technologies, including the CyberKnife System. In many cases, these entities entered into arrangements with hospitals that billed Medicare for the furnishing of medical services, and the physician owners were among the physicians who referred patients to the entity for services. The rule limits these arrangements and could require the restructuring of existing arrangements between physicians owned entities and hospitals and could discourage physicians from participating in the acquisition and ownership of medical technologies. The final rule also prohibits percentage-based compensation in equipment leases. As a result of the finalization of these regulations, some existing CyberKnife System operators have modified or restructured their corporate or organizational structures. In addition, certain customers that planned to open CyberKnife centers in the United States involving physician ownership have restructured their legal ownership structure. Certain entities were not able to establish viable models for CyberKnife System operation and therefore canceled their CyberKnife System purchase agreements. Accordingly,

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these regulations have resulted in cancellations of CyberKnife System purchase agreements and could also reduce the attractiveness of medical technology acquisitions, including CyberKnife System purchases, by physician-owned joint ventures or similar entities. As a result, these regulations have had, and could continue to have, an adverse impact on our product sales and therefore on our business and results of operations.

        A person who engages in a scheme to circumvent the Stark Law's referral prohibition may be fined up to $100,000 for each such arrangement or scheme. In addition, any person who presents or causes to be presented a claim to the Medicare or Medicaid programs in violations of the Stark Law is subject to civil monetary penalties of up to $15,000 per bill submission, an assessment of up to three times the amount claimed, and possible exclusion from federal healthcare programs such as Medicare and Medicaid. Various states have corollary laws to the Stark Law, including laws that require physicians to disclose any financial interest they may have with a healthcare provider to their patients when referring patients to that provider. Both the scope and exceptions for such laws vary from state to state.

        Federal False Claims Act.    The federal False Claims Act prohibits the knowing filing or causing the filing of a false claim or the knowing use of false statements to obtain payment from the federal government. When an entity is determined to have violated the False Claims Act, it may be required to pay three times the actual damages sustained by the government, plus mandatory civil penalties of between $5,500 and $11,000 for each separate false claim. Suits filed under the False Claims Act, known as "qui tam" actions, can be brought by any individual on behalf of the government and such individuals, sometimes known as "relators" or, more commonly, as "whistleblowers," may share in any amounts paid by the entity to the government in fines or settlement. In addition, certain states have enacted laws modeled after the federal False Claims Act. Qui tam actions have increased significantly in recent years, causing greater numbers of healthcare companies to have to defend a false claim action, pay fines or be excluded from Medicare, Medicaid or other federal or state healthcare programs as a result of an investigation arising out of such action. We have retained the services of a reimbursement consultant, for which we pay certain consulting fees, to provide us and facilities that have purchased a CyberKnife or TomoTherapy System, with general reimbursement advice. While we believe this will assist our customers in filing proper claims for reimbursement, and even though such consultants do not submit claims on behalf of our customers, the fact that we provide these consultant services could expose us to additional scrutiny and possible liability in the event one of our customers is investigated and determined to be in violation of any of these laws.

        HIPAA.    The Health Insurance Portability and Accountability Act of 1996, or HIPAA, created two new federal crimes: healthcare fraud and false statements relating to healthcare matters. The healthcare fraud statute prohibits knowingly and willfully executing a scheme to defraud any healthcare benefit program, including private payors. A violation of this statute is a felony and may result in fines, imprisonment or exclusion from government sponsored programs. The false statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false, fictitious or fraudulent statement in connection with the delivery of or payment for healthcare benefits, items or services. A violation of this statute is a felony and may result in fines or imprisonment.

        As a participant in the healthcare industry, we are also subject to extensive laws and regulations protecting the privacy and integrity of patient medical information, including privacy and security standards required under HIPAA. The HIPAA privacy standard was amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, enacted as part of the American Recovery and Reinvestment Act of 2009. HITECH significantly increases the civil money penalties for violations of patient privacy rights protected under HIPAA. Although we are not a covered entity under HIPAA, we have entered into agreements with certain covered entities under which we are considered to be a "business associate" under HIPAA. As a business associate, we are

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required to implement policies, procedures and reasonable and appropriate security measures to protect individually identifiable health information we receive from covered entities. Furthermore, as of February 2010, business associates are now directly subject to regulations under HIPAA, including a new enforcement scheme, criminal and civil penalties for certain violations, and inspection requirements.

        Foreign Corrupt Practices Act.    The United States and foreign government regulators have increased regulation, enforcement, inspections and governmental investigations of the medical device industry, including increased United States government oversight and enforcement of the Foreign Corrupt Practices Act. Whenever the United States or another foreign governmental authority concludes that we are not in compliance with applicable laws or regulations, such governmental authority can impose fines, delay or suspend regulatory clearances, institute proceedings to detain or seize our products, issue a recall, impose operating restrictions, enjoin future violations and assess civil penalties against us or our officers or employees, and can recommend criminal prosecution to the Department of Justice. Moreover, governmental authorities can ban or request the recall, repair, replacement or refund of the cost of any device or product we manufacture or distribute. We are also potentially subject to the UK Bribery Act, which could also lead to the imposition of civil and criminal fines. Any of the foregoing actions could result in decreased sales as a result of negative publicity and product liability claims, and could have a material adverse effect on our financial condition, results of operations and prospects.

International Regulation

        International sales of medical devices are subject to foreign government regulations, which vary substantially from country to country. The time required to obtain clearance or approval by a foreign country may be longer or shorter than that required for FDA clearance or approval, and the requirements may be different.

        The primary regulatory environment in Europe is that of the European Union and the three additional member states of the European Economic Area, or EEA, which have adopted similar laws and regulations with respect to medical devices. The European Union has adopted numerous directives and the European Committee for Standardization has promulgated standards regulating the design, manufacture, clinical trials, labeling and adverse event reporting for medical devices. Devices that comply with the requirements of the relevant directive will be entitled to bear CE conformity marking, indicating that the device conforms with the essential requirements of the applicable directives and, accordingly, may be commercially distributed throughout the member states of the European Economic Area.

        The method of assessing conformity to applicable standards and directives depends on the type and class of the product, but normally involves a combination of self-assessment by the manufacturer and a third-party assessment by a notified body, an independent and neutral institution appointed by a European Union member state to conduct the conformity assessment. This relevant assessment may consist of an audit of the manufacturer's quality system (currently ISO 13485), provisions of the Medical Devices Directive, and specific testing of the manufacturer's device. In September 2002 and February 2005, Accuray's and TomoTherapy's facilities, respectively, were awarded the ISO 13485 certification, which replaces the ISO 9001 and EN 46001 standards, which have been subsequently maintained through periodic assessments, in accordance with the expiration dates of the standards, and we are currently authorized to affix the CE mark to our products, allowing us to sell our products throughout the European Economic Area.

        We are also currently subject to regulations in Japan. Under the Pharmaceutical Affairs Law in Japan, a pre-market approval necessary to sell, market and import a product, or shonin, must be obtained from the Ministry of Health, Labor and Welfare, or MHLW, for our products. A Japanese distributor received

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the first government approval to market the CyberKnife System from MHLW in November 1996. In December 2003, we received approval from the MHLW to market the CyberKnife System in Japan for clinical applications in the head and neck, and a new distributor, Chiyoda Technology Corporation, was appointed to distribute the CyberKnife System. In June 2008, we received approval from the MHLW to market the CyberKnife System for treatments throughout the body where radiation treatment is indicated. On June 30, 2009, our subsidiary, Accuray Japan KK, became the Marketing Authorization Holder in Japan, which allowed the Company to directly sell our products in Japan. In August 2010, we received Shonin approval from MHLW to market the CyberKnife G4 System to treat tumors non-invasively anywhere in the body, inclusive of head and neck. Hi-Art Co. Ltd., the original distributor for TomoTherapy in Japan, received the Shonin approval from the MHLW to market the TomoTherapy System for use as an integrated system for the planning and delivery of IMR for the treatment of cancer in January 2006. The Shonin was transferred to another distributor, Hitachi Medical Corporation in January 2009. During September 2011, Hitachi Medical Corporation received a Shonin approval for the marketing of the TomoHD model. In July 2012, we took over the Shonins and the service operations of the TomoTherapy Systems in Japan from Hitachi Medical Corporation. In March 2014, we received Shonin approval from MHLW for CyberKnife M6 Series.

        We are subject to additional regulations in other foreign countries, including, but not limited to, Canada, Taiwan, China, Korea, and Russia in order to sell our products. We intend that either we or our distributors will receive any necessary approvals or clearance prior to marketing our products in those international markets.

State Certificate of Need Laws

        In some states, a certificate of need or similar regulatory approval is required prior to the acquisition of high-cost capital items or the provision of new services. These laws generally require appropriate state agency determination of public need and approval prior to the acquisition of such capital items or addition of new services. Certificate of need regulations may preclude our customers from acquiring one of our systems, and from performing stereotactic radiosurgery procedures using one of our systems. Several of our prospective customers currently are involved in appeals of certificate of need determinations. If these appeals are not resolved in favor of these prospective customers, they may be precluded from purchasing and/or performing services using one of our systems. Certificate of need laws are the subject of continuing legislative activity, and a significant increase in the number of states regulating the acquisition and use of one of our systems through certificate of need or similar programs could adversely affect us.

Backlog

        For a discussion of the Company's fiscal 2014 backlog, please refer to the section entitled "Backlog," in Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations.

Employees

        As of June 30, 2014, we had 1,026 employees worldwide. None of the employees is represented by a labor union or is covered by a collective bargaining agreement. We have never experienced any employment related work stoppages and we believe our relationship with our employees is good.

Geographic Information

        For financial reporting purposes, net sales and long-lived assets attributable to significant geographic areas are presented in Note 2, Summary of Significant Accounting Policies, to the consolidated financial statements, which is incorporated herein by reference.

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Available Information

        Our main corporate website address is www.accuray.com. We make available on this web site, free of charge, copies of our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and our proxy statements, and any amendments to those reports, as soon as reasonably practicable after filing such material electronically or otherwise furnishing it to the Securities and Exchange Commission, the SEC. All SEC filings are also available at the SEC's website at www.sec.gov. In addition, the Corporate Governance Guidelines and the charters of the Audit Committee, Compensation Committee, Nominating and Disclosure Committee of our Board of Directors are also available on the investor relations page of our website. The contents of our web site are not intended to be incorporated by reference into this report or in any other report or document we file or furnish, and any references to our web site are intended to be textual references only.

        We operate in a rapidly changing environment that involves significant risks, a number of which are beyond our control. In addition to the other information contained in this Form 10-K, the following discussion highlights some of these risks and the possible impact of these factors on our business, financial condition and future results of operations. If any of the following risks actually occur, our business, financial condition or results of operations may be adversely impacted, causing the trading price of our common stock to decline. In addition, these risks and uncertainties may impact the "forward-looking" statements described elsewhere in this Form 10-K and in the documents incorporated herein by reference. They could affect our actual results of operations, causing them to differ materially from those expressed in "forward-looking" statements.

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Item 1A.    RISK FACTORS

Risks Related to Our Business

If the CyberKnife or TomoTherapy Systems do not achieve widespread market acceptance, we will not be able to generate the revenue necessary to support our business.

        Achieving physician, patient, hospital administrator and third-party payor acceptance of the CyberKnife and TomoTherapy Systems as preferred methods of tumor treatment is crucial to our continued success. Physicians will not begin to use or increase the use of the CyberKnife or TomoTherapy Systems unless they determine, based on experience, clinical data and other factors, that the CyberKnife and TomoTherapy Systems are safe and effective alternatives to traditional treatment methods.

        We often need to educate physicians about the use of stereotactic radiosurgery, IGRT and adaptive radiation therapy, convince healthcare payors that the benefits of the CyberKnife and TomoTherapy Systems and their related treatment processes outweigh their costs and help train qualified physicians in the skilled use of these systems. In addition, we also must educate prospective customers regarding the entire functionality of our radiation therapy systems and their relative benefits compared to alternative products and treatment methods. We have expended and will continue to expend significant resources on marketing and educational efforts to create awareness of stereotactic radiosurgery and Robotic IMRT as well as adaptive radiation therapy and IGRT generally and to encourage the acceptance and adoption of our products for these technologies. We cannot be sure that our products will gain significant market acceptance among physicians, patients and healthcare payors, even if we spend significant time and expense on their education.

        In addition, the CyberKnife and TomoTherapy Systems are major capital purchases, and purchase decisions are greatly influenced by hospital administrators who are subject to increasing pressures to reduce costs. These and other factors, including the following, may affect the rate and level of market acceptance of each of the CyberKnife and TomoTherapy Systems:

    the CyberKnife and TomoTherapy Systems' price relative to other products or competing treatments;

    our ability to develop new products and enhancements and receive regulatory clearances and approval, if required, to existing products in a timely manner;

    increased scrutiny by state boards when evaluating certificates of need requested by purchasing institutions;

    perception by patients, physicians and other members of the healthcare community of the CyberKnife and TomoTherapy Systems' safety, efficacy, efficiency and benefits compared to competing technologies or treatments;

    willingness of physicians to adopt new techniques and the ability of physicians to acquire the skills necessary to operate the CyberKnife and TomoTherapy Systems;

    extent of third-party coverage and reimbursement rates, particularly from Medicare, for procedures using the CyberKnife and TomoTherapy Systems; and

    development of new products and technologies by our competitors or new treatment alternatives.

        If the CyberKnife or TomoTherapy Systems are unable to achieve or maintain market acceptance, new orders and sales of our systems would be adversely affected, our revenue levels would decrease and our business would be harmed.

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We have a large accumulated deficit, may incur future losses and may be unable to achieve profitability.

        As of June 30, 2014, we had an accumulated deficit of $355 million. We may incur net losses in the future, particularly as we improve our selling and marketing activities. Our ability to achieve and sustain long-term profitability is largely dependent on our ability to successfully market and sell the CyberKnife and TomoTherapy Systems, control our costs, and effectively manage our growth. We cannot assure you that we will be able to achieve profitability. In the event we fail to achieve profitability, our stock price could decline.

If we do not effectively manage our growth, our business may be significantly harmed.

        In order to implement our business strategy, we expect continued growth in our infrastructure requirements, particularly as we expand our manufacturing capacities and our sales and marketing capabilities. To manage our growth, we must expand our facilities, augment our management, operational and financial systems, hire and train additional qualified personnel, scale-up our manufacturing capacity and expand our marketing and distribution capabilities. Our manufacturing, assembly and installation process is complex and occurs over many months, and we must effectively scale this entire process to satisfy customer expectations and changes in demand. Further, to accommodate our growth and compete effectively, we will be required to improve our information systems. We cannot be certain that our personnel, systems, procedures and internal controls will be adequate to support our future operations. If we cannot manage our growth effectively, our business will suffer.

Our ability to achieve profitability depends in part on maintaining or increasing our gross margins on product sales and service, which we may not be able to achieve.

        A number of factors may adversely impact our gross margins, including:

    lower than expected manufacturing yields of high cost components leading to increased manufacturing costs;

    low production volume which will result in high levels of overhead cost per unit of production;

    the timing of revenue recognition and revenue deferrals;

    increased material or labor costs;

    increased service or warranty costs or the failure to reduce service or warranty costs;

    increased price competition;

    variation in the margins across products installed in a particular period; and

    how well we execute on our strategic and operating plans.

        If we are unable to maintain or increase our gross margins on product sales and service, our results of operations could be adversely impacted, we may not achieve profitability and our stock price could decline.

We have limited experience and capability in manufacturing. If we encounter manufacturing problems, or if our manufacturing facilities do not continue to meet federal, state or foreign manufacturing standards, we may be required to temporarily cease all or part of our manufacturing operations, which would result in delays and lost revenue.

        The CyberKnife and TomoTherapy Systems are complex, and require the integration of a number of components from several sources of supply. We must manufacture and assemble these complex systems in commercial quantities in compliance with regulatory requirements and at an acceptable cost.

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We have a limited history of manufacturing commercial quantities of the CyberKnife and TomoTherapy Systems. In particular, we manufacture compact linacs as a component of the CyberKnife and TomoTherapy Systems. Our linac components are extremely complex devices and require significant expertise to manufacture, and as a result of our limited manufacturing experience we may have difficulty producing needed components in a commercially viable manner. We may encounter difficulties in scaling up production of the CyberKnife or TomoTherapy Systems, including problems with quality control and assurance, component supply shortages, increased costs, shortages of qualified personnel, the long lead time required to develop additional radiation-shielded facilities for purposes of testing our products and/or difficulties associated with compliance with local, state, federal and foreign regulatory requirements. If our manufacturing capacity does not keep pace with product demand, we will not be able to fulfill orders in a timely manner, which in turn may have a negative effect on our financial results and overall business. Conversely, if demand for our products decreases, the fixed costs associated with excess manufacturing capacity may adversely affect our financial results.

        In October 2012, we introduced our new CyberKnife M6 Series Systems that have the option of: fixed collimator, iris collimator, and/or multi-leaf collimator, or MLC. The initial supplier producing the MLC for our CyberKnife M6 Series Systems experienced low manufacturing yields and initially delivered only a small number of units. Our initial life-cycle testing revealed that the units did not have the durability that we, and our customers, expect in our products. Currently, our internal testing of the MLC has been concluded to our satisfaction and we have begun our evaluation of the MLC in the field, with the goal of ensuring that we introduce a clinically effective and reliable collimator. While we are confident in our path forward, due to the complexity of the MLC, there is still some risk in this project that could cause further delays. In the meantime, and despite the delay in the launch of the MLC upgrade, we are continuing to book orders and install the CyberKnife M6 Series Systems with fixed and iris collimators. The occurrence of new manufacturing and supply issues related to the MLC for our CyberKnife System may adversely affect market acceptance of our CyberKnife M6 System and negatively impact our revenue and overall business.

        In 2014, we began transitioning production of our CyberKnife Systems, excluding certain linear accelerator production, from our manufacturing facilities in Sunnyvale, California, to our facilities in Madison, Wisconsin. While we have made significant progress, such transition efforts are on-going. The transition process could result in the disruption of existing business, require additional domestic and foreign permits and regulatory clearances, cause unforeseen expenses, and divert management attention, any of which could have an adverse effect on our business and results of operations.

        Our manufacturing processes and the manufacturing processes of our third-party suppliers are required to comply with the FDA's Quality System Regulation, or QSR. The QSR is a complex regulatory scheme that covers the methods and documentation of the design, testing, production process, controls, manufacturing, labeling, quality assurance, packaging, storage and shipping of our products. Furthermore, we are required to verify that our suppliers maintain facilities, procedures and operations that comply with our quality requirements. We are also subject to state licensing and other requirements and licenses applicable to manufacturers of medical devices, and we are required to comply with International Organization for Standardization, or ISO, quality system standards in order to produce products for sale in Europe, as well as various other foreign laws and regulations. Because our manufacturing processes include the production of diagnostic and therapeutic X-ray equipment and laser equipment, we are subject to the electronic product radiation control provisions of the Federal Food, Drug and Cosmetic Act, which requires that we file reports with the FDA, applicable states and our customers regarding the distribution, manufacturing and installation of these types of equipment. The FDA enforces the QSR and the electronic product radiation control provisions through periodic inspections, some of which may be unannounced. We have been, and anticipate in the future being subject to such inspections. FDA inspections usually occur every two to three years. During such inspections, the FDA may issue Inspectional Observations on Form FDA 483, listing instances where

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the manufacturer has failed to comply with applicable regulations and procedures, or warning letters. Our Sunnyvale facility, where we manufacture the CyberKnife Systems, was most recently inspected by the FDA in June 2012. The 2012 inspection resulted in several observations. The initial classification of the inspection is considered to be Voluntary Action Indicated. We have undertaken corrective actions in response to the FDA's observations. In addition, our Madison facility, where we manufacture the TomoTherapy System, was most recently inspected by the FDA in July 2012. The 2012 inspection resulted in no observations.

        If a manufacturer does not adequately address the observations, the FDA may take enforcement action against the manufacturer, including the imposition of fines, restriction of the ability to export product, total shutdown of production facilities and criminal prosecution. If we or a third-party supplier receive a Form FDA 483 with material or major observations that are not promptly corrected, fail to pass a QSR inspection, or fail to comply with these, ISO and other applicable regulatory requirements, our operations could be disrupted and our ability to generate sales could be delayed. Our failure to take prompt and satisfactory corrective action in response to an adverse inspection or our failure to comply with applicable standards could result in enforcement actions, including a public warning letter, a shutdown of our manufacturing operations, a recall of our products, civil or criminal penalties, or other sanctions, which would cause our sales and business to suffer. In addition, because some foreign regulatory approvals are based on approvals or clearances from the FDA, any failure to comply with FDA requirements may also disrupt our sales of products in other countries. We cannot assure you that the FDA or other governmental authorities would agree with our interpretation of applicable regulatory requirements or that we or our third-party suppliers have in all instances fully complied with all applicable requirements. If any of these events occurs, our reputation could be harmed, we could lose customers and there could be a material adverse effect on our business, financial condition and results of operations.

        If we cannot achieve the required level and quality of production, we may need to outsource production or rely on licensing and other arrangements with third parties who possess sufficient manufacturing facilities and capabilities in compliance with regulatory requirements. Even if we could outsource needed production or enter into licensing or other third party arrangements, this could reduce our gross margin and expose us to the risks inherent in relying on others. We also cannot assure you that our suppliers will deliver an adequate supply of required components on a timely basis or that they will adequately comply with the QSR. Failure to obtain these components on a timely basis would disrupt our manufacturing processes and increase our costs, which would harm our operating results.

Our industry is subject to intense competition and rapid technological change, which may result in products or new tumor treatments that are superior to the CyberKnife and TomoTherapy Systems. If we are unable to anticipate or keep pace with changes in the marketplace and the direction of technological innovation and customer demands, our products may become obsolete or less useful and our operating results will suffer.

        The medical device industry in general and the non-invasive cancer treatment field in particular are subject to intense and increasing competition and rapidly evolving technologies. Because our products often have long development and government approval cycles, we must anticipate changes in the marketplace and the direction of technological innovation and customer demands. To compete successfully, we will need to continue to demonstrate the advantages of our products and technologies over well-established alternative procedures, products and technologies, and convince physicians and other healthcare decision makers of the advantages of our products and technologies. Traditional surgery and other forms of minimally invasive procedures, brachytherapy, chemotherapy or other drugs remain alternatives to the CyberKnife and TomoTherapy Systems.

        We consider the competition for the CyberKnife and TomoTherapy Systems to be existing radiation therapy systems, primarily using C-arm linacs, which are sold by large, well-capitalized companies with significantly greater market share and resources than we have. Several of these

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competitors are also able to leverage their fixed sales, service and other costs over multiple products or product lines. In particular, we compete with a number of existing radiation therapy equipment companies, including Varian Medical Systems, Inc., Elekta AB , Mitsubishi Heavy Industries, Ltd., BrainLAB AG and ViewRay Incorporated. Varian has been the leader in the external beam radiation therapy market for many years and has the majority market share for radiation therapy systems worldwide. In general, because of aging demographics and attractive market factors in oncology, we believe that new competitors will enter the radiosurgery and radiation therapy markets in the years ahead. The CyberKnife System has not typically been used to perform traditional radiation therapy and therefore competition has been limited with conventional medical linacs that perform traditional radiation therapy. However, the CyberKnife VSI System, which we introduced in November of 2009, may be used to perform Robotic IMRT, an advanced method of traditional radiation therapy, which products of Elekta and Varian are also capable of performing. The new CyberKnife M6 Series, which we introduced in October 2012, includes the option of an MLC which may further the use of the CyberKnife Systems to perform radiation therapy, when this feature is commercially available. In October 2012, Varian announced a new line of C-arm gantries, called the Edge systems, which Varian claims are specifically designed for radiosurgery to compete with our CyberKnife Systems. In addition, some manufacturers of conventional linac based radiation therapy systems, including Varian and Elekta, have products that can be used in combination with body and/or head frames and image guidance systems to perform both radiosurgical and radiotherapy procedures.

        Furthermore, many government, academic and business entities are investing substantial resources in research and development of cancer treatments, including surgical approaches, radiation treatment, MRI-guided radiotherapy systems, proton therapy systems, drug treatment, gene therapy (which is the treatment of disease by replacing, manipulating, or supplementing nonfunctional genes), and other approaches. Successful developments that result in new approaches for the treatment of cancer could reduce the attractiveness of our products or render them obsolete.

        Our future success will depend in large part on our ability to establish and maintain a competitive position in current and future technologies. Rapid technological development may render the CyberKnife and TomoTherapy Systems and their technologies obsolete. Many of our competitors have or may have greater corporate, financial, operational, sales and marketing resources, and more experience and resources in research and development than we have. We cannot assure you that our competitors will not succeed in developing or marketing technologies or products that are more effective or commercially attractive than our products or that would render our technologies and products obsolete or less useful. We may not have the financial resources, technical expertise, marketing, distribution or support capabilities to compete successfully in the future. Our success will depend in large part on our ability to maintain a competitive position with our technologies.

If we are unable to develop new products or enhance existing products, we may be unable to attract or retain customers.

        Our success depends on the successful development, regulatory clearance or approval, introduction and commercialization of new generations of products, treatment systems, and enhancements to and/or simplification of existing products. The CyberKnife and TomoTherapy Systems, which are currently our principal products, are technologically complex and must keep pace with, among other things, the products of our competitors. We are making significant investments in long-term growth initiatives. Such initiatives require significant capital commitments, involvement of senior management and other investments on our part, which we may be unable to recover. Our timeline for the development of new products or enhancements may not be achieved and price and profitability targets may not prove feasible. Commercialization of new products may prove challenging, and we may be required to invest more time and money than expected to successfully introduce them. Once introduced, new products may adversely impact orders and sales of our existing products, or make them less desirable or even

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obsolete. Compliance with regulations, competitive alternatives, and shifting market preferences may also impact the successful implementation of new products or enhancements.

        Our ability to successfully develop and introduce new products, treatment systems and product enhancements and simplifications, and the revenues and costs associated with these efforts, will be affected by our ability to:

    properly identify customer needs;

    prove feasibility of new products in a timely manner;

    educate physicians about the use of new products and procedures;

    comply with internal quality assurance systems and processes timely and efficiently;

    limit the timing and cost of obtaining regulatory approvals or clearances;

    accurately predict and control costs associated with inventory overruns caused by phase-in of new products and phase-out of old products;

    price new products competitively;

    manufacture and deliver our products in sufficient volumes on time, and accurately predict and control costs associated with manufacturing, installation, warranty and maintenance of the products;

    meet our product development plan and launch timelines;

    improve manufacturing yields of components; and

    manage customer demands for retrofits of both old and new products.

        Even if customers accept new products or product enhancements, the revenues from these products may not be sufficient to offset the significant costs associated with making them available to customers.

        We cannot be sure that we will be able to successfully develop, obtain regulatory approval or clearance for, manufacture or introduce new products, treatment systems or enhancements, the roll-out of which involves compliance with complex quality assurance processes, including QSR. Failure to obtain regulatory approval or clearance for our products or to complete these processes in a timely and efficient manner could result in delays that could affect our ability to attract and retain customers, or could cause customers to delay or cancel orders, causing our backlog, revenues and operating results to suffer.

We could become subject to product liability claims, product recalls, other field actions and warranty claims that could be expensive, divert management's attention and harm our business.

        Our business exposes us to potential liability risks that are inherent in the manufacturing, marketing and sale of medical device products. We may be held liable if a CyberKnife or TomoTherapy System causes injury or death or is found otherwise unsuitable during usage. Our products incorporate sophisticated components and computer software. Complex software can contain errors, particularly when first introduced. In addition, new products or enhancements may contain undetected errors or performance problems that, despite testing, are discovered only after installation. Because our products are designed to be used to perform complex surgical and therapeutic procedures involving delivery of radiation to the body, defects, even if small, could result in a number of complications, some of which could be serious and could harm or kill patients. Any alleged weaknesses in physician training and services associated with our products may result in unsatisfactory patient outcomes and product liability lawsuits. It is also possible that defects in the design, manufacture or labeling of our products might

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necessitate a product recall or other field corrective action, which may result in warranty claims beyond our expectations and may harm our reputation and create adverse publicity. A product liability claim, regardless of its merit or eventual outcome, could result in significant legal defense costs. We may also be subject to claims for property damage or economic loss related to, or resulting from, any errors or defects in our products, or the installation, servicing and support of our products, or any professional services rendered in conjunction with our products. The coverage limits of our insurance policies may not be adequate to cover future claims. If sales of our products increase or we suffer future product liability claims, we may be unable to maintain product liability insurance in the future at satisfactory rates or with adequate amounts of coverage. A product liability claim, any product recalls or other field actions or excessive warranty claims, whether arising from defects in design or manufacture or labeling, could negatively affect our sales or require a change in the design, manufacturing process or the indications for which the CyberKnife or TomoTherapy Systems may be used, any of which could harm our reputation and business and result in a decline in revenue.

        In addition, if a product we designed or manufactured is defective, whether due to design or manufacturing, or labeling defects, improper use of the product or other reasons, we may be required to notify regulatory authorities and/or to recall the product, possibly at our expense. We have voluntarily conducted recalls and product corrections in the past, including one recall for the CyberKnife System in fiscal year 2014. Accuray initiated each of these recalls. While no serious adverse health consequences have been reported in connection with these recalls and the costs associated with each such recall were not material, we cannot ensure that the FDA will not require that we take additional actions to address problems that resulted in previous recalls. A required notification of a correction or removal to a regulatory authority or recall could result in an investigation by regulatory authorities of our products, which could in turn result in required recalls, restrictions on the sale of the products or other civil or criminal penalties. The adverse publicity resulting from any of these actions could cause customers to review and potentially terminate their relationships with us. These investigations, corrections or recalls, especially if accompanied by unfavorable publicity, patient injury or termination of customer contracts, could result in incurring substantial costs, losing revenues and damaging our reputation, each of which would harm our business.

Our reliance on single-source suppliers for critical components of the CyberKnife and TomoTherapy Systems could harm our ability to meet demand for our products in a timely and cost effective manner.

        We currently depend on single-source suppliers for some of the critical components necessary for the assembly of the CyberKnife and TomoTherapy Systems, including, with respect to the CyberKnife System, the robot and imaging detectors, and, with respect to the TomoTherapy Systems, the ring gantry, the solid state modulator, the radiation detector and the magnetron. If any single-source supplier was to cease delivering components to us or fail to provide the components to our specifications and on a timely basis, we might be required to find alternative sources for these components. In some cases, alternative suppliers may be located in the same geographic area as existing suppliers, and are thus subject to the same economic, political, and geographic factors that may affect existing suppliers to meet our demand. We may have difficulty or be unable to find alternative sources for these components. As a result, we may be unable to meet the demand for the CyberKnife or TomoTherapy Systems, which could harm our ability to generate revenue and damage our reputation. Even if we do find alternate suppliers, we will be required to qualify any such alternate suppliers and we would likely experience a lengthy delay in our manufacturing processes or a cessation in production, which would result in delays of shipment to end users. We cannot assure you that our single-source suppliers will be able or willing to meet our future demands.

        We generally do not maintain large volumes of inventory, which makes us even more susceptible to harm if a single-source supplier fails to deliver components on a timely basis. Furthermore, if we are required to change the manufacturer of a critical component of the CyberKnife or TomoTherapy

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Systems, we will be required to verify that the new manufacturer maintains facilities, procedures and operations that comply with our quality and applicable regulatory requirements and guidelines, which could further impede our ability to manufacture our products in a timely manner. If the change in manufacturer results in a significant change to the product, a new 510(k) clearance would be necessary, which would likely cause substantial delays. The disruption or termination of the supply of key components for the CyberKnife or TomoTherapy Systems could harm our ability to manufacture our products in a timely manner or within budget, harm our ability to generate revenue, lead to customer dissatisfaction and adversely affect our reputation and results of operations.

We depend on key employees, the loss of whom would adversely affect our business. If we fail to attract and retain employees with the expertise required for our business, we may be unable to continue to grow our business.

        We are highly dependent on the members of our senior management, sales, marketing, operations and research and development staff. Our future success will depend in part on our ability to retain our key employees and to identify, hire and retain additional personnel. Competition for qualified personnel in the medical device industry is intense, and finding and retaining qualified personnel with experience in our industry is very difficult. We believe there are only a limited number of individuals with the requisite skills to serve in many of our key positions and we compete for key personnel with other medical equipment and software manufacturers and technology companies, as well as universities and research institutions. A significant portion of our compensation to our key employees is in the form of stock related grants. A prolonged depression in our stock price could make it difficult for us to retain our employees and recruit additional qualified personnel. We do not maintain, and do not currently intend to obtain, key employee life insurance on any of our personnel. If we fail to hire and retain personnel in key positions, we may be unable to continue to grow our business successfully.

Disruption of critical information systems could harm our business and financial condition.

        Information technology helps us operate more efficiently, interface with customers, maintain financial accuracy and efficiency, and accurately produce our financial statements. If we do not allocate and effectively manage the resources necessary to build, sustain and secure the proper technology infrastructure, we could be subject to transaction errors, processing inefficiencies, the loss of customers, business disruptions, or the loss of or damage to intellectual property through a security breach. In addition, we have moved some of our data and information to a cloud computing system, where applications and data are hosted, accessed and processed through a third-party provider over a broadband Internet connection. In a cloud computing environment, we could be subject to outages and security breaches by the third party service provider. If our data management systems do not effectively collect, store, process and report relevant data for the operation of our business, whether due to equipment malfunction or constraints, software deficiencies, computer viruses, security breaches, catastrophic events or human error, our ability to effectively plan, forecast and execute our business plan and comply with applicable laws and regulations will be impaired, perhaps materially. Any such impairment could materially and adversely affect our financial condition, results of operations, cash flows and the timeliness with which we internally and externally report our operating results.

        Likewise, data privacy breaches by employees and others with permitted access to our systems may pose a risk that sensitive data may be exposed to unauthorized person or to the public. There can be no assurance that any efforts we make to prevent against such privacy breaches will prevent breakdowns or breaches in our systems that could adversely affect our business. Moreover, we manufacture and sell products that allow our customers to store confidential information about their patients. While we have implemented security measures to protect our products from unauthorized access, these measures do not secure our customers' equipment or any information stored in our customers' systems or at their locations. A breach of network security and systems or other events that

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cause the loss or public disclosure of, or access by third parties to, sensitive information stored by us or our customers could have serious negative consequences for our business, including possible fines, penalties and damages, reduced demand for our solutions, an unwillingness of our customers to use our solutions, harm to our reputation and brand, and time-consuming and expensive litigation, any of which could have an adverse effect on our financial results.

If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial results. As a result, current and potential stockholders could lose confidence in our financial reporting, which could have an adverse effect on our business and our stock price.

        Effective internal controls are necessary for us to provide reliable financial reports and to protect from fraudulent, illegal or unauthorized transactions. If we cannot maintain effective controls and provide reliable financial reports, our business and operating results could be harmed.

        A failure to implement and maintain effective internal control over financial reporting could result in a material misstatement of our financial statements or otherwise cause us to fail to meet our financial reporting obligations. This, in turn, could result in a loss of investor confidence in the accuracy and completeness of our financial reports, which could have an adverse effect on our business and operating results and our stock price, and we could be subject to stockholder litigation.

We may have difficulties in determining the effectiveness of our internal controls due to our complex financial model.

        The complexity of our financial model contributes to our need for effective financial reporting systems and internal controls. We recognize revenue from a range of transactions including CyberKnife and TomoTherapy Systems sales and services. The CyberKnife and TomoTherapy Systems are complex products that contain both hardware and software elements. The complexity of the CyberKnife and TomoTherapy Systems and of our financial model pertaining to revenue recognition requires us to process a broader range of financial transactions than would be required by a company with a less complex financial model. Accordingly, deficiencies or weaknesses in our internal controls would likely impact us more significantly than they would impact a company with a less complex financial model. If we were to find that our internal controls were deficient, and/or we would be required to amend or restate historical financial statements, this would likely have a negative impact on our stock price.

If third-party payors do not provide sufficient coverage and reimbursement to healthcare providers for use of the CyberKnife and TomoTherapy Systems, demand for our products and our revenue could be adversely affected.

        Our customers rely significantly on reimbursement for CyberKnife and TomoTherapy procedures. Our ability to commercialize our products successfully will depend in significant part on the extent to which public and private third party payors provide adequate coverage and reimbursement for procedures that are performed with our products. Third-party payors, and in particular managed care organizations, challenge the prices charged for medical products and services and institute cost containment measures to control or significantly influence the purchase of medical products and services. If reimbursement policies or other cost containment measures are instituted in a manner that significantly reduces the coverage or payment for the procedures that are performed with our products, our existing customers may not continue using our products or may decrease their use of our products, and we may have difficulty obtaining new customers. Such actions would likely have a material adverse effect on our operating results.

        In November 2013, the centers for Medicare and Medicaid Services, or CMS, issued the 2014 Medicare payment rates for hospital outpatient services, for physicians, and services performed in the freestanding center setting for calendar year 2014. When compared to the prior year, the 2014

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reimbursement rates are modestly higher or flat for conventional radiotherapy (IMRT and 3D conformal). For radiosurgery, some reimbursement rates significantly increased and others moderately decreased when compared to the prior year. Such decreases could have a negative impact on the continued use of our products by existing customers and our ability to obtain new customers. CMS reviews such rates annually, and could implement more significant changes in future years, which could discourage existing and potential customers from purchasing or using our products.

The safety and efficacy of our products for certain uses is not yet supported by long-term clinical data, and our products may therefore prove to be less safe and effective than initially thought.

        Although we believe that the CyberKnife and TomoTherapy Systems have advantages over competing products and technologies, we do not have sufficient clinical data demonstrating these advantages for all tumor indications. In addition, we have only limited five-year patient survival rate data, which is a common long-term measure of clinical effectiveness in cancer treatment. We also have limited clinical data directly comparing the effectiveness of the CyberKnife Systems to other competing systems. Future patient studies or clinical experience may indicate that treatment with the CyberKnife System does not improve patient survival or outcomes.

        Likewise, because the TomoTherapy Systems have only been on the market since 2003, we have limited complication or patient survival rate data with respect to treatment using the system. In addition, while the effectiveness of radiation therapy is well understood, there is a growing but still limited number of peer-reviewed medical journal publications regarding the efficacy of highly conformal treatment such as that delivered by the TomoTherapy System. If future patient studies or clinical experience do not support our beliefs that the TomoTherapy System offers a more advantageous treatment for a wide variety of cancer types, use of the system could fail to increase or could decrease, and our business would therefore be adversely affected.

        Such results could reduce the rate of reimbursement by both public and private third-party payors for procedures that are performed with our products, slow the adoption of our products by physicians, significantly reduce our ability to achieve expected revenues and could prevent us from becoming profitable. In addition, if future results and experience indicate that our products cause unexpected or serious complications or other unforeseen negative effects, the FDA could rescind our clearances, our reputation with physicians, patients and others may suffer and we could be subject to significant legal liability.

We rely on third parties to perform spare parts shipping and other logistics functions on our behalf. A failure or disruption at our logistics providers would adversely impact our business.

        Customer service is a critical element of our sales strategy. Third-party logistics providers store most of our spare parts inventory in depots around the world and perform a significant portion of our spare parts logistics and shipping activities. If any of our logistics providers suffers an interruption in its business, or experiences delays, disruptions or quality control problems in its operations, or we have to change and qualify alternative logistics providers for our spare parts, shipments of spare parts to our customers may be delayed and our reputation, business, financial condition and results of operations may be adversely affected.

Third parties may claim we are infringing their intellectual property, and we could suffer significant litigation or licensing expenses or be prevented from selling our product.

        The medical device industry is characterized by a substantial amount of litigation over patent and other intellectual property rights. In particular, the field of radiation treatment of cancer is well established and crowded with the intellectual property of competitors and others. We also expect that other participants will enter the field. A number of companies in our market, as well as universities and research institutions, have issued patents and have filed patent applications which relate to the use of radiation therapy and stereotactic radiosurgery to treat cancerous and benign tumors.

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        Determining whether a product infringes a patent involves complex legal and factual issues, and the outcome of patent litigation actions is often uncertain. We have not conducted an extensive search of patents issued to third parties, and no assurance can be given that third party patents containing claims covering our products, parts of our products, technology or methods do not exist, have not been filed, or could not be filed or issued. Because of the number of patents issued and patent applications filed in our technical areas or fields, our competitors or other third parties may assert that our products and the methods we employ in the use of our products are covered by United States or foreign patents held by them.

        In addition, because patent applications can take many years to issue and because publication schedules for pending applications vary by jurisdiction, there may be applications now pending of which we are unaware, and which may result in issued patents which our current or future products infringe. Also, because the claims of published patent applications can change between publication and patent grant, there may be published patent applications that may ultimately issue with claims that we infringe. There could also be existing patents that one or more of our products or parts may infringe and of which we are unaware. As the number of competitors in the market for less invasive cancer treatment alternatives grows, and as the number of patents issued in this area grows, the possibility of patent infringement claims against us increases. Regardless of the merit of infringement claims, they can be time-consuming, result in costly litigation and diversion of technical and management personnel. Some of our competitors may be able to sustain the costs of complex patent litigation more effectively than we can because they have substantially greater resources. In addition, any uncertainties resulting from the initiation and continuation of any litigation could have a material adverse effect on our ability to raise funds, if necessary, to continue our operations.

        In the event that we become subject to a patent infringement or other intellectual property lawsuit and if the relevant patents or other intellectual property were upheld as valid and enforceable and we were found to infringe or violate the terms of a license to which we are a party, we could be prevented from selling our products unless we could obtain a license or were able to redesign the product to avoid infringement. Required licenses may not be made available to us on acceptable terms or at all. If we were unable to obtain a license or successfully redesign our system, we might be prevented from selling our system. If there is an allegation or determination that we have infringed the intellectual property rights of a competitor or other person, we may be required to pay damages, pay ongoing royalties or otherwise settle such matter upon terms that are unfavorable to us. In these circumstances, we may be unable to sell our products at competitive prices or at all, and our business and operating results could be harmed.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

        As is common in the medical device industry, we employ individuals who were previously employed at other medical equipment or biotechnology companies, including our competitors or potential competitors. We may be subject to claims that we or those employees have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers. Litigation may be necessary to defend against these claims. Even if we are successful in defending against claims of this nature, litigation could result in substantial costs and be a distraction to management.

It is difficult and costly to protect our intellectual property and our proprietary technologies, and we may not be able to ensure their protection.

        Our success depends significantly on our ability to obtain, maintain and protect our proprietary rights to the technologies used in our products. Patents and other proprietary rights provide uncertain protections, and we may be unable to protect our intellectual property. For example, we may be

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unsuccessful in defending our patents and other proprietary rights against third party challenges. As key patents expire, our ability to prevent competitors from copying our technology may be limited.

        In addition to patents, we rely on a combination of trade secrets, copyright and trademark laws, nondisclosure agreements and other contractual provisions and technical security measures to protect our intellectual property rights. These measures may not be adequate to safeguard the technology underlying our products. If these measures do not protect our rights adequately, third parties could use our technology, and our ability to compete in the market would be reduced. Although we have attempted to obtain patent coverage for our technology where available and appropriate, there are aspects of the technology for which patent coverage was never sought or never received. There are also countries in which we sell or intend to sell the CyberKnife or TomoTherapy Systems but have no patents or pending patent applications. Our ability to prevent others from making or selling duplicate or similar technologies will be impaired in those countries in which we have no patent protection. Although we have several issued patents in the United States and in foreign countries protecting aspects of the CyberKnife and TomoTherapy Systems, our pending United States and foreign patent applications may not issue, may issue only with limited coverage or may issue and be subsequently successfully challenged by others and held invalid or unenforceable.

        Similarly, our issued patents and those of our licensors may not provide us with any competitive advantages. Competitors may be able to design around our patents or develop products which provide outcomes comparable or superior to ours. Our patents may be held invalid or unenforceable as a result of legal challenges by third parties, and others may challenge the inventorship or ownership of our patents and pending patent applications. In addition, the laws of some foreign countries may not protect our intellectual property rights to the same extent as do the laws of the United States. In the event a competitor infringes upon our patent or other intellectual property rights, enforcing those rights may be difficult and time consuming. Even if successful, litigation to enforce our intellectual property rights or to defend our patents against challenge could be expensive and time consuming and could divert our management's attention from our core business. We may not have sufficient resources to enforce our intellectual property rights or to defend our patents against a challenge. In addition, we may not prevail in any lawsuits that we initiate, and the damages or other remedies awarded, if any, may not be commercially valuable. Litigation also puts our patents at risk of being invalidated or interpreted narrowly and our patent applications at risk of not issuing. Additionally, we may provoke third parties to assert claims against us.

        We also license patent and other proprietary rights to aspects of our technology to third parties in fields where we currently do not operate as well as in fields where we currently do operate. Disputes with our licensees may arise regarding the scope and content of these licenses. Further, our ability to expand into additional fields with our technologies may be restricted by our existing licenses or licenses we may grant to third parties in the future.

        The policies we have in place to protect our trade secrets may not be effective in preventing misappropriation of our trade secrets by others. In addition, confidentiality agreements executed by our employees, consultants and advisors may not be enforceable or may not provide meaningful protection for our trade secrets or other proprietary information in the event of unauthorized use or disclosure. Litigating a trade secret claim is expensive and time consuming, and the outcome is unpredictable. In addition, courts outside the United States are sometimes less willing to protect trade secrets. Moreover, our competitors may independently develop equivalent knowledge methods and know-how. If we are unable to protect our intellectual property rights, we may be unable to prevent competitors from using our own inventions and intellectual property to compete against us, and our business may be harmed.

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Unfavorable results of legal proceedings could materially and adversely affect our financial condition.

        We are and may become a party to legal proceedings, claims and other legal matters in the ordinary course of business or otherwise. These legal proceedings, claims and other legal matters, regardless of merit, may be costly, time-consuming and require the attention of key management and other personnel. The outcomes of such matters are uncertain and difficult to predict. If any such matters are adjudicated against us, in whole or in part, we may be subject to substantial monetary damages, disgorgement of profits, and injunctions that prevent us from operating our business, any of which could materially and adversely affect our business and financial condition. We cannot guarantee that our insurance coverage will be sufficient to cover any damages awarded against us.

If we are not able to meet the requirements of our license agreement with the Wisconsin Alumni Research Foundation, or WARF, we could lose access to the technologies licensed thereunder and be unable to manufacture, market or sell the TomoTherapy Systems.

        We license patents from WARF covering the multi-leaf collimator and other key technologies incorporated into the TomoTherapy Systems under a license agreement that requires us to pay royalties to WARF. In addition, the license agreement obligates us to pursue an agreed development plan and to submit periodic reports, and restricts our ability to take actions to defend the licensed patents. WARF has the right to unilaterally terminate the agreement if we do not meet certain minimum royalty obligations or satisfy other obligations related to our utilization of the technology. If WARF were to terminate the agreement or if we were to otherwise lose the ability to exploit the licensed patents, our competitive advantage would be reduced and we may not be able to find a source to replace the licensed technology. The license agreement reserves to WARF the initial right to defend or prosecute any claim arising with respect to the licensed technology. If WARF does not vigorously defend the patents, we may be required to engage in expensive patent litigation to enforce our rights, and any competitive advantage we have based on the licensed technology may be hampered. Any of these events could adversely affect our business, financial condition and results of operations.

International sales of our products account for a significant portion of our revenue, which exposes us to risks inherent in international operations.

        Our international sales, as a percentage of total revenue, have increased over the last five fiscal years. The percentage of our revenue derived from sales outside of the Americas region was 58% in 2014, 55% in 2013 and 54% in 2012. To accommodate our international sales, we have invested significant financial and management resources to develop an international infrastructure that will meet the needs of our customers. We anticipate that a significant portion of our revenue will continue to be derived from sales of our products in foreign markets and that the percentage of our overall revenue that is derived from these markets may continue to increase. This revenue and related operations will therefore continue to be subject to the risks associated with international operations, including:

    economic or political instability in foreign countries;

    import delays;

    changes in foreign regulatory laws governing, among other matters, the clearance, approval and sales of medical devices;

    the potential failure to comply with foreign regulatory requirements to sell and market our products;

    longer payment cycles associated with many customers outside the United States;

    adequate coverage and reimbursement for the CyberKnife and TomoTherapy treatment procedures outside the United States;

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    failure of local laws to provide the same degree of protection against infringement of our intellectual property;

    protectionist laws and business practices that favor local competitors;

    the possibility that foreign countries may impose additional taxes, tariffs or other restrictions on foreign trade;

    risks relating to foreign currency, including fluctuations in foreign currency exchange rates; and

    contractual provisions governed by foreign laws and various trade restrictions, including U.S. prohibitions and restrictions on exports of certain products and technologies to certain nations.

        Our inability to overcome these obstacles could harm our business, financial condition and operating results. Even if we are successful in managing these obstacles, our partners internationally are subject to these same risks and may not be able to manage these obstacles effectively.

        In addition, future imposition of, or significant increases in, the level of customs duties, export quotas, regulatory restrictions or trade restrictions could materially harm our business.

We face risks related to the current global economic environment, which could delay or prevent our customers from obtaining financing to purchase the CyberKnife and TomoTherapy Systems and implement the required facilities, which would adversely affect our business, financial condition and results of operations.

        The state of the global economy continues to be uncertain. The current global economic conditions and uncertain credit markets and concerns regarding the availability of credit pose a risk that could impact consumer and customer demand for our products, as well as our ability to manage normal commercial relationships with our customers, suppliers and creditors, including financial institutions. If the current situation continues to deteriorate or does not improve, our business could be negatively affected, including by reduced demand for our products resulting from a slow-down in the general economy, supplier or customer disruptions and/or temporary interruptions in our ability to conduct day-to-day transactions through our financial intermediaries involving the payment to or collection of funds from our customers, vendors and suppliers.

        For example, in the United States, some of our customers have been delayed in obtaining, or have not been able to obtain, necessary financing for their purchases of the CyberKnife or TomoTherapy Systems. In addition, some of our customers have been delayed in obtaining, or have not been able to obtain, necessary financing for the construction or renovation of facilities to house CyberKnife or TomoTherapy Systems, the cost of which can be substantial. These delays have in some instances led to our customers postponing the shipment and installation of previously ordered systems or cancelling their system orders, and may cause other customers to postpone their system installation or to cancel their agreements with us. An increase in delays and order cancellations of this nature would adversely affect our product sales, backlog and revenues, and therefore harm our business and results of operations.

Because the majority of our product revenue is derived from sales of the CyberKnife and TomoTherapy Systems, and because we experience a long and variable sales and installation cycle, our quarterly results may be inconsistent from period to period.

        Our primary products are the CyberKnife and TomoTherapy Systems. We expect to generate substantially all of our revenue for the foreseeable future from sales of and service contracts for the CyberKnife and TomoTherapy Systems. The CyberKnife and TomoTherapy Systems have lengthy sales and purchase order cycles because they are major capital equipment items and require the approval of senior management at purchasing institutions. Selling our systems, from first contact with a potential customer to a complete order, generally spans six months to two years and involves personnel with

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multiple skills. The sales process in the United States typically begins with pre-selling activity followed by sales presentations and other sales related activities. After the customer has expressed an intention to purchase a CyberKnife or TomoTherapy System, we negotiate and enter into a definitive purchase contract with the customer. The negotiation of terms that are not standard for Accuray may require additional time and approvals. Typically, following the execution of the contract, the customer begins the building or renovation of a radiation-shielded facility to house the CyberKnife or TomoTherapy System, which together with the subsequent installation of the CyberKnife or TomoTherapy System, can take up to 24 months to complete. In order to construct this facility, the customer must typically obtain radiation device installation permits, which are granted by state and local government bodies, each of which may have different criteria for permit issuance. If a permit was denied for installation at a specific hospital or treatment center, our CyberKnife or TomoTherapy System could not be installed at that location. In addition, some of our customers are cancer centers or facilities that are new, and in these cases it may be necessary for the entire facility to be completed before the CyberKnife or TomoTherapy System can be installed, which can result in additional construction and installation delays. Our sales and installations of CyberKnife and TomoTherapy Systems tend to be heaviest during the third month of each fiscal quarter.

        Under our revenue recognition policy, we generally do not recognize revenue attributable to a CyberKnife or TomoTherapy System purchase until after installation has occurred, if we are responsible for providing installation, or delivery. For international sales through distributors, we typically recognize revenue when the system is shipped and we have evidence of a purchase commitment from the end user. Under our current forms of purchase and service contracts, we record a majority of the purchase price as revenue for a CyberKnife or TomoTherapy System upon installation or delivery of the system. Events beyond our control may delay installation and the satisfaction of contingencies required to receive cash inflows and recognize revenue, including delays in the customer obtaining funding or financing, delays in construction at the customer site or delays in the customer obtaining receipt of regulatory approvals such as certificates of need.

        The long sales cycle, together with delays in the shipment and installation of CyberKnife and TomoTherapy Systems or customer cancellations, could adversely affect our cash flows and revenue, which would harm our results of operations and may result in significant fluctuations in our reporting of quarterly revenues. Because of these fluctuations, it is likely that in some future quarters, our operating results will fall below the expectations of securities analysts or investors. If that happens, the market price of our stock would likely decrease. These fluctuations also mean that you will not be able to rely upon our operating results in any particular period as an indication of future performance.

We depend on third-party distributors to market and distribute our products in international markets. If our distributors fail to successfully market and distribute our products, our business will be materially harmed.

        We depend on a number of distributors in our international markets. We cannot control the efforts and resources our third-party distributors will devote to marketing the CyberKnife or TomoTherapy Systems. Our distributors may not be able to successfully market and sell the CyberKnife or TomoTherapy Systems, may not devote sufficient time and resources to support the marketing and selling efforts and may not market the CyberKnife or TomoTherapy Systems at prices that will permit the product to develop, achieve or sustain market acceptance. In some jurisdictions, we rely on our distributors to manage the regulatory process, and we are dependent on their ability to do so effectively. In addition, if a distributor is terminated by us or goes out of business, it may take us a period of time to locate an alternative distributor, to seek appropriate regulatory approvals and to train its personnel to market the CyberKnife or TomoTherapy Systems, and our ability to sell and service the CyberKnife or TomoTherapy Systems in the region formerly serviced by such terminated distributor could be materially and adversely affected. Any of these factors could materially and adversely affect our revenue from international markets, increase our costs in those markets or damage our reputation.

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If we are unable to attract additional international distributors, our international revenue may not grow. If our distributors experience difficulties, do not actively market the CyberKnife or TomoTherapy Systems or do not otherwise perform under our distribution agreements, our potential for revenue and gross margins from international markets may be dramatically reduced, and our business could be harmed.

The high unit price of the CyberKnife and TomoTherapy Systems, as well as other factors, may contribute to substantial fluctuations in our operating results, which could adversely affect our stock price.

        Because of the high unit price of the CyberKnife and TomoTherapy Systems and the relatively small number of units installed each quarter, each installation of a CyberKnife or TomoTherapy System can represent a significant percentage of our revenue for a particular quarter. Therefore, if we do not install a CyberKnife or TomoTherapy System when anticipated, our operating results will vary significantly from our expectations. This is of particular concern in the current volatile economic environment, where we have had experiences with customers cancelling or postponing orders for our CyberKnife and TomoTherapy Systems and delaying any required build-outs. These fluctuations and other potential fluctuations mean that you should not rely upon our operating results in any particular period as an indication of future performance. In particular, in addition to the other risk factors described above and below, factors which may contribute to these fluctuations include:

    timing of when we are able to recognize revenue associated with sales of the CyberKnife and TomoTherapy Systems, which varies depending upon the terms of the applicable sales and service contracts;

    the proportion of revenue attributable to our legacy service plans;

    timing and level of expenditures associated with new product development activities;

    regulatory requirements in some states for a certificate of need prior to the installation of a radiation device;

    delays in shipment due, for example, to unanticipated construction delays at customer locations where our products are to be installed, cancellations by customers, natural disasters or labor disturbances;

    delays in our manufacturing processes or unexpected manufacturing difficulties;

    timing of the announcement, introduction and delivery of new products or product upgrades by us and by our competitors;

    timing and level of expenditures associated with expansion of sales and marketing activities such as trade shows and our overall operations; and

    fluctuations in our gross margins and the factors that contribute to such fluctuations, as described in the Management's Discussion and Analysis of Financial Condition and Results of Operations.

        These factors are difficult to forecast and may contribute to substantial fluctuations in our quarterly revenues and substantial variation from our projections, particularly during the periods in which our sales volume is low. These fluctuations may cause volatility in our stock price.

As a strategy to assist our sales efforts, we may offer extended payment terms, which may potentially result in higher Days Sales Outstanding and greater payment defaults.

        We offer longer or extended payment terms for qualified customers in some circumstances. As of June 30, 2014, customer contracts with extended payment terms of more than one year amounted to less than 5% of our accounts receivable balance. While we qualify customers to whom we offer longer

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or extended payment terms, their financial positions may change adversely over the longer time period given for payment. This may result in an increase in payment defaults, which would affect our revenue, as we recognize revenue on such transactions on a cash basis.

Our operations are vulnerable to interruption or loss due to natural disasters, epidemics, terrorist acts and other events beyond our control, which would adversely affect our business.

        We have facilities in countries around the world, including three manufacturing facilities, each of which is equipped to manufacture unique components of our products. The manufacturing facilities are located in Sunnyvale, California, Madison, Wisconsin and Chengdu, China. We do not maintain backup manufacturing facilities for all of our manufacturing facilities or for our IT facilities, so we depend on each of our current facilities for the continued operation of our business. In addition, we conduct a significant portion of other activities, including administration and data processing, at facilities located in the State of California which has experienced major earthquakes in the past, as well as other natural disasters. Chengdu, China, where one of our manufacturing facilities is located, has also experienced major earthquakes in the past. We do not carry earthquake insurance. Unexpected events at any of our facilities, including fires or explosions; natural disasters, such as hurricanes, floods, tornados and earthquakes; war or terrorist activities; unplanned outages; supply disruptions; and failures of equipment or systems, or the failure to take adequate steps to mitigate the likelihood or potential impact of such events, could significantly disrupt our operations, delay or prevent product manufacture and shipment for the time required to repair, rebuild or replace our manufacturing facilities, which could be lengthy, result in large expenses to repair or replace the facilities, and adversely affect our results of operation.

We may attempt to acquire new businesses, products or technologies, or enter into strategic collaborations or alliances, and if we are unable to successfully complete these acquisitions or to integrate acquired businesses, products, technologies or employees, we may fail to realize expected benefits or harm our existing business.

        Our success will depend, in part, on our ability to expand our product offerings and grow our business in response to changing technologies, customer demands and competitive pressures. In some circumstances, we may determine to do so through the acquisition of complementary businesses, products or technologies, or through collaborating with complementary businesses, rather than through internal development. The identification of suitable acquisition or alliance candidates can be difficult, time consuming and costly, and we may not be able to successfully complete identified acquisitions or alliances. Other companies may compete with us for these strategic opportunities. In addition, even if we successfully complete an acquisition or alliance, we may not be able to successfully integrate newly acquired organizations, products or technologies into our operations, and the process of integration could be expensive, time consuming and may strain our resources, and we may not realize the expected benefits of any acquisition, collaboration or strategic alliance. Furthermore, the products and technologies that we acquire or with respect to which we collaborate may not be successful, or may require significantly greater resources and investments than we originally anticipated. In addition, we may be unable to retain employees of acquired companies, or retain the acquired company's customers, suppliers, distributors or other partners who are our competitors or who have close relationships with our competitors. Consequently, we may not achieve anticipated benefits of the acquisitions or alliances which could harm our existing business. In addition, future acquisitions or alliances could result in potentially dilutive issuances of equity securities or the incurrence of debt, contingent liabilities or expenses, or other charges such as in-process research and development, any of which could harm our business and affect our financial results or cause a reduction in the price of our common stock.

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Multiple factors may adversely affect our ability to fully utilize certain tax loss carryforwards.

        As of June 30, 2014, we had approximately $320.5 million and $166.8 million in federal and state net operating loss carry forwards, respectively, which expire in varying amounts beginning in 2019 for federal and 2015 for state purposes. In addition, as of June 30, 2014, we had federal and state research and development tax credit carryforwards of approximately $16.1 million and $15.7 million, respectively. The federal research credits will begin to expire in 2019, the California research credits have no expiration date, and the other state research credits will begin to expire in 2015. Utilization of our net operating loss and credit carry forwards is subject to annual limitation due to the application of the ownership change limitations provided by Section 382 of the Internal Revenue Code and similar state provisions to us. However, none of the federal and state net operating loss carryforwards are expected to expire as a result of the ownership change limitation.

Our results may be impacted by changes in foreign currency exchange rates.

        Currently, the majority of our international sales are denominated in U.S. dollars. As a result, an increase in the value of the U.S. dollar relative to foreign currencies could require us to reduce our sales price or make our products less competitive in international markets. Also, if our international sales increase, we may enter into a greater number of transactions denominated in non-U.S. dollars, which would expose us to foreign currency risks, including changes in currency exchange rates. If we are unable to address these risks and challenges effectively, our international operations may not be successful and our business would be materially harmed.

Changes in interpretation or application of generally accepted accounting principles may adversely affect our operating results.

        We prepare our financial statements to conform with United States Generally Accepted Accounting Principles. These principles are subject to interpretation by the Financial Accounting Standards Board, American Institute of Certified Public Accountants, the Public Company Accounting Oversight Board, the Securities and Exchange Commission and various other regulatory or accounting bodies. A change in interpretations of, or our application of, these principles can have a significant effect on our reported results and may even affect our reporting of transactions completed before a change is announced. Additionally, as we are required to adopt new accounting standards, our methods of accounting for certain items may change, which could cause our results of operations to fluctuate from period to period. For example, due to the significance of the software component in certain of our products, we are currently bound by the software revenue recognition rules for a portion of our business.

Our liquidity could be adversely impacted by adverse conditions in the financial markets.

        At June 30, 2014, we had $92.3 million in cash and cash equivalents and $79.6 million in investments. The available cash and cash equivalents are held in accounts managed by third party financial institutions and consist of cash in our operating accounts and cash invested in money market funds. The investments are managed by third party financial institutions and consist of U.S. corporate debt securities. To date, we have experienced no realized losses on or lack of access to our invested cash, cash equivalents or investments; however, we can provide no assurances that access to our invested cash and cash equivalents will not be impacted by adverse conditions in the financial markets.

        At any point in time, we also have funds in our operating accounts that are with third party financial institutions that exceed the Federal Deposit Insurance Corporation, or FDIC, insurance limits. While we monitor daily the cash balances in our operating accounts and adjust the cash balances as appropriate, these cash balances could be impacted if the underlying financial institutions fail or

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become subject to other adverse conditions in the financial markets. To date, we have experienced no loss or lack of access to cash in our operating accounts.

Our ability to raise capital in the future may be limited, and our failure to raise capital when needed could prevent us from executing our growth strategy.

        While we believe that our existing cash, cash equivalents and investments will be sufficient to meet our anticipated cash needs for at least the next twelve months, the timing and amount of our working capital and capital expenditure requirements may vary significantly depending on numerous factors, including the other risk factors described above and below.

        If our capital resources are insufficient to satisfy our liquidity requirements, we may seek to sell additional equity securities or debt securities or obtain other debt financing, which could be difficult or impossible in the current economic and capital markets environments. Our debt levels may impair our ability to obtain additional financing in the future. The sale of additional equity securities or convertible debt securities would result in additional dilution to our stockholders. We cannot assure that additional financing, if required, will be available in amounts or on terms acceptable to us, if at all.

Risks Related to the Regulation of our Products and Business

Modifications, upgrades and future products related to the CyberKnife or TomoTherapy Systems or new indications may require new FDA 510(k) clearances or premarket approvals, and such modifications, or any defects in design, manufacture or labeling may require us to recall or cease marketing the CyberKnife or TomoTherapy Systems until approvals or clearances are obtained.

        The CyberKnife and TomoTherapy Systems are medical devices that are subject to extensive regulation in the United States by local, state and the federal government, including by the FDA. The FDA regulates virtually all aspects of a medical device's design, development, testing manufacturing, labeling, storage, record keeping, adverse event reporting, sale, promotion, distribution and shipping. Before a new medical device, or a new intended use or indication of or claim for an existing product, can be marketed in the United States, it must first receive either premarket approval or 510(k) clearance from the FDA, unless an exemption exists. Either process can be expensive, lengthy and unpredictable. The FDA's 510(k) clearance process generally takes from three to twelve months, but it can last longer. The process of obtaining premarket approval is much more costly and uncertain than the 510(k) clearance process and it generally takes from one to three years, or even longer, from the time the application is filed with the FDA. Despite the time, effort and cost, there can be no assurance that a particular device or a modification of a device will be approved or cleared by the FDA in a timely fashion, if at all. Even if we are granted regulatory clearances or approvals, they may include significant limitations on the indicated uses of the product, which may limit the market for those products, and how those products can be promoted.

        Medical devices may be marketed only for the indications for which they are approved or cleared. The FDA also may change its policies, adopt additional regulations, or revise existing regulations, each of which could prevent or delay premarket approval or 510(k) clearance of our device, or could impact our ability to market our currently cleared device. We are also subject to medical device reporting regulations which require us to report to the FDA if our products cause or contribute to a death or a serious injury, or malfunction in a way that would likely cause or contribute to a death or a serious injury. We also are subject to Quality System regulations. Our products are also subject to state regulations and various worldwide laws and regulations.

        A component of our strategy is to continue to upgrade the CyberKnife and TomoTherapy Systems. Upgrades previously released by us required 510(k) clearance before we were able to offer them for sale. We expect our future upgrades will similarly require 510(k) clearance; however, future upgrades may be subject to the substantially more time consuming data generation requirements and uncertain

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premarket approval or clearance process. If we were required to use the premarket approval process for future products or product modifications, it could delay or prevent release of the proposed products or modifications, which could harm our business.

        The FDA requires device manufacturers to make their own determination of whether or not a modification requires an approval or clearance; however, the FDA can review a manufacturer's decision not to submit for additional approvals or clearances. Any modification to an FDA approved or cleared device that would significantly affect its safety or efficacy or that would constitute a major change in its intended use would require a new premarket approval or 510(k) clearance. The FDA has recently issued a draft guidance that, if finalized, will result in manufacturers needing to seek a significant number of new or additional clearances for changes made to legally marketed devices. We cannot assure you that the FDA will agree with our decisions not to seek approvals or clearances for particular device modifications or that we will be successful in obtaining premarket approvals or 510(k) clearances for modifications in a timely fashion, if at all.

        We have obtained 510(k) clearance for the CyberKnife Systems for the treatment of tumors anywhere in the body where radiation is indicated, and we have obtained 510(k) clearance for the TomoTherapy Systems to be used as integrated systems for the planning and delivery of IMRT for the treatment of cancer. We have made modifications to the CyberKnife and TomoTherapy Systems in the past and may make additional modifications in the future that we believe do not or will not require additional approvals or clearances. If the FDA disagrees, based on new finalized guidance and requires us to obtain additional premarket approvals or 510(k) clearances for any modifications to the CyberKnife or TomoTherapy Systems and we fail to obtain such approvals or clearances or fail to secure approvals or clearances in a timely manner, we may be required to cease manufacturing and marketing the modified device or to recall such modified device until we obtain FDA approval or clearance and we may be subject to significant regulatory fines or penalties.

        The FDA and similar governmental authorities in other countries in which we market and sell our products have the authority to require the recall of our products in the event of material deficiencies or defects in design, manufacture or labeling. A government mandated recall, or a voluntary recall by us, could occur as a result of component failures, manufacturing errors or design defects, including defects in labeling and user manuals. Any recall could divert management's attention, cause us to incur significant expenses, generate negative publicity, harm our reputation with customers, negatively affect our future sales and business, require redesign of the CyberKnife or TomoTherapy Systems, and harm our operating results. In these circumstances, we may also be subject to significant enforcement action. If any of these events were to occur, our ability to introduce new or enhanced products in a timely manner would be adversely affected, which in turn would harm our future growth.

We are subject to federal, state and foreign laws applicable to our business practices, the violation of which could result in substantial penalties and harm our business.

        Laws and ethical rules governing interactions with healthcare providers.    The Medicare and Medicaid "anti-kickback" laws, and similar state laws, prohibit soliciting, offering, paying or accepting any payments or other remuneration that is intended to induce any individual or entity to either refer patients to or purchase, lease or order, or arrange for or recommend the purchase, lease or order of, healthcare products or services for which payment may be made under federal and state healthcare programs, such as Medicare and Medicaid. Such laws impact our sales, marketing and other promotional activities by reducing the types of financial arrangements we may have with our customers, potential customers, marketing consultants and other service providers. They particularly impact how we structure our sales offerings, including discount practices, customer support, product loans, education and training programs, physician consulting, research grants and other service arrangements. Many of these laws are broadly drafted and are open to a variety of interpretations, making it difficult to determine with any certainty whether certain arrangements violate such laws, even if statutory safe harbors are available.

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        In addition to such anti-kickback laws, federal and state "false claims" laws generally prohibit the knowing filing or causing the filing of a false claim or the knowing use of false statements to obtain payment from government payors. Although we do not submit claims directly to payors, manufacturers can be held liable under these laws if they are deemed to "cause" the submission of false or fraudulent claims by providing inaccurate billing or coding information to customers, or through certain other activities, including promoting products for uses or indications that are not approved by the FDA.

        We are also subject to federal and state physician self referral laws. The federal Ethics in Patient Referrals Act of 1989, commonly known as the Stark Law, prohibits, subject to certain exceptions, physician referrals of Medicare and Medicaid patients to an entity providing certain "designated health services" if the physician or an immediate family member has any financial relationship with the entity. The Stark Law also prohibits the entity receiving the referral from billing any good or service furnished pursuant to an unlawful referral. Various states have corollary laws to the Stark Law, including laws that require physicians to disclose any financial interest they may have with a healthcare provider to their patients when referring patients to that provider. Both the scope and exceptions for such laws vary from state to state.

        If our past or present operations are found to be in violation of any of these "anti-kickback," "false claims," "self referral" or other similar laws in foreign jurisdictions, we may be subject to the applicable penalty associated with the violation, which may include significant civil and criminal penalties, damages, fines, imprisonment and exclusion from healthcare programs. The impact of any such violations may lead to curtailment or restructuring of our operations, which could adversely affect our ability to operate our business and our financial results.

        Anti-corruption laws.    We are also subject to laws regarding the conduct of business overseas, such as the U.S. Foreign Corrupt Practices Act, or FCPA, the U.K. Bribery Act of 2010, the Brazil Clean Companies Act, and other similar laws in foreign countries in which we operate. The FCPA prohibits the provision of illegal or improper inducements to foreign government officials in connection with the obtaining of business overseas. Becoming familiar with and implementing the infrastructure necessary to ensure that we and our distributors comply with such laws, rules and regulations and mitigate and protect against corruption risks could be quite costly, and there can be no assurance that any policies and procedures we do implement will protect us against liability under the FCPA or related laws for actions taken by our employees, executive officers, distributors, agents and other intermediaries with respect to our business. Violations of the FCPA or other similar laws by us or any of our employees, executive officers, distributors, agents or other intermediaries could subject us or the individuals involved to criminal or civil liability, cause a loss of reputation in the market, and materially harm our business.

        Laws protecting patient health information.    There are a number of federal and state laws protecting the confidentiality of certain patient health information, including patient records, and restricting the use and disclosure of that protected information. In particular, the U.S. Department of Health and Human Services, or HHS, has promulgated patient privacy rules under the Health Insurance Portability and Accountability Act of 1996, or HIPAA. These privacy rules protect medical records and other personal health information of patients by limiting their use and disclosure, giving patients the right to access, amend and seek accounting of their own health information and limiting most uses and disclosures of health information to the minimum amount reasonably necessary to accomplish the intended purpose. The HIPAA privacy standard was amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, enacted as part of the American Recovery and Reinvestment Act of 2009. Although we are not a "covered entity" under HIPAA, we are considered a "business associate" of certain covered entities and, as such, we are directly subject to HIPAA, including its enforcement scheme and inspection requirements, and are required to implement policies, procedures as well as reasonable and appropriate physical, technical and administrative security measures to protect individually identifiable health information we receive

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from covered entities. Our failure to protect health information received from customers in compliance with HIPAA or other laws could subject us to civil and criminal liability to the government and civil liability to the covered entity, could result in adverse publicity, and could harm our business and impair our ability to attract new customers.

        Transparency laws.    The Physician Payment Sunshine Act, or the Sunshine Act, which was enacted by Congress as part of the Patient Protection and Affordable Care Act on December 14, 2011, requires each applicable manufacturer, which includes medical device companies such as Accuray, to track and report to the federal government on an annual basis all payments and other transfers of value from such applicable manufacturer to U.S. licensed physicians and teaching hospitals as well as physician ownership of such applicable manufacturer's equity, in each case subject to certain statutory exceptions. Such data will be made available by the government on a publicly searchable website. Failure to comply with the data collection and reporting obligations imposed by the Sunshine Act can result in civil monetary penalties ranging from $1,000 to $10,000 for each payment or other transfer of value that is not reported (up to a maximum of $150,000 per reporting period) and from $10,000 to $100,000 for each knowing failure to report (up to a maximum of $1 million per reporting period). In addition, we are subject to similar state and foreign laws related to the tracking and reporting of payments and other transfers of value to healthcare professionals, the violation of which could, among other things, result in civil monetary penalties and adversely impact our reputation and business.

        Conflict Minerals.    The Dodd-Frank Wall Street Reform and Consumer Protection Act and the rules promulgated by the SEC under such act require companies, including Accuray, to disclose the existence in their products of certain metals, including tantalum, tin, gold, tungsten and their derivatives, that originate from the Democratic Republic of the Congo and adjoining countries. In addition, such rules require companies to carry out a diligent effort to identify the sourcing of such materials from such region. Complying with these rules requires investigative efforts, which has and will continue to cause us to incur associated costs, and could adversely affect the sourcing, supply, and pricing of materials used in our products, or result in process or manufacturing modifications, all of which could adversely affect our results of operations.

If we or our distributors do not obtain and maintain the necessary regulatory approvals in a specific country, we will not be able to market and sell our products in that country.

        To be able to market and sell our products in a specific country, we or our distributors must comply with applicable laws and regulations of that country. In jurisdictions where we rely on our distributors to manage the regulatory process, we are dependent on their ability to do so effectively. While the laws and regulations of some countries do not impose barriers to marketing and selling our products or only require notification, others require that we or our distributors obtain the approval of a specified regulatory body. These laws and regulations, including the requirements for approvals, and the time required for regulatory review vary from country to country. The governmental agencies regulating medical devices in some countries, for example, require that the user interface on medical device software be in the local language. We currently provide user guides and manuals, both paper copies and electronically, in the local language but only provide an English language version of the user interface. Obtaining regulatory approvals is expensive and time-consuming, and we cannot be certain that we or our distributors will receive regulatory approvals in each country in which we market or plan to market our products. If we modify our products, we or our distributors may need to apply for additional regulatory approvals before we are permitted to sell them. We may not continue to meet the quality and safety standards required to maintain the authorizations that we or our distributors have received. It can also be costly for us and our distributors to keep up with regulatory changes issued or mandated from time to time. If we change distributors, it may be time-consuming and disruptive to our business to transfer the required regulatory approvals, particularly if such approvals are maintained by our third-party distributors on our behalf. If we or our distributors are unable to maintain our

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authorizations, or fail to obtain appropriate authorizations in a particular country, we will no longer be able to sell our products in that country, and our ability to generate revenue will be materially adversely affected.

        Within the European Union, we are required under the Medical Device Directive to affix the Conformité Européene, or CE, mark on our products in order to sell the products in member countries of the EU. This conformity to the applicable directives is done through self declaration and is verified by an independent certification body, called a Notified Body, before the CE mark can be placed on the device. Once the CE mark is affixed to the device, the Notified Body will regularly audit us to ensure that we remain in compliance with the applicable European laws or directives. CE marking demonstrates that our products comply with the laws and regulations required by the European Union countries to allow free movement of trade within those countries. If we cannot support our performance claims and/or demonstrate or maintain compliance with the applicable European laws and directives, we lose our CE mark, which would prevent us from selling our products within the European Union.

        Under the Pharmaceutical Affairs Law in Japan, a pre-market approval necessary to sell, market and import a product, or shonin, must be obtained from the Ministry of Health, Labor and Welfare, or MHLW, for our products. Before issuing approvals, MHLW examines the application in detail with regard to the quality, efficacy, and safety of the proposed medical device. The shonin is granted once MHLW is content with the safety and effectiveness of the medical device. The time required for approval varies. A delay in approval could prevent us from selling our products in Japan, which could impact our ability to generate revenue and harm our business.

        In addition to laws and regulations regarding medical devices, we are subject to a variety of environmental laws and regulations regulating our operations, including those relating to the use, generation, handling, storage, transportation, treatment and disposal of hazardous materials, which laws impose compliance costs on our business and can also result in liability to us. For example, the recast Directive on Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment, or the RoHS Directive, which began applying to medical devices in July 2014, bans placing new electrical and electronic equipment on the EU market containing more than certain specified levels of lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl or PBB and polybrominated diphenyl ether. We believe that the RoHS Directive does not impose any restrictions on our products because our products are exempt as large scale fixed installations. The Notified Body which audits our compliance efforts has indicated that they share our view in this respect and that we are and will remain in compliance with the RoHS Directive because the RoHS Directive's restrictions do not apply to our products. Nevertheless, there can be no guarantee that the EU will not challenge such determination and, accordingly, we intend to comply with the RoHS restrictions, whether or not they apply, and are in the process of updating the way our products are built with a view toward achieving such compliance gradually over time.

Healthcare reform legislation could adversely affect demand for our products, our revenue and our financial condition.

        In March 2010, the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010 were signed into law. The Affordable Care Act provides for, among other things, a 2.3% excise tax on U.S. sales of medical devices, including our products, effective as of 2013. This tax burden may have a material, negative impact on our business, results of operations and cash flow. In addition, these two pieces of legislation include a large number of other health related provisions, including expanding Medicaid eligibility, requiring most individuals to have health insurance, establishing new regulations on health plans, establishing health insurance exchanges, requiring manufacturers to report payments or other transfers of value made to physicians and teaching hospitals, modifying certain payment systems to encourage more cost-effective care and a reduction of

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inefficiencies and waste and including new tools to address fraud and abuse. The laws also include a decrease in the annual rate of inflation for Medicare payments to hospitals and the establishment of an independent payment advisory board to suggest methods of reducing the rate of growth in Medicare spending. There continue to be many programs and requirements for which the details have not yet been fully established or consequences not fully understood, and it is unclear what the full impact of the legislation will be.

        In addition, since the adoption of the Affordable Care Act, other legislation designed to keep federal healthcare costs down has been proposed or passed. For example, under the sequestration required by the Budget Control Act of 2011, as amended by the American Taxpayer Relief Act of 2012, Medicare payments for all items and services under Parts A and B incurred on or after April 1, 2013 have been reduced by up to 2%. Future federal legislation may impose further limitations on the coverage or amounts of reimbursement available for our products from governmental agencies or third-party payors. These limitations could have a negative impact on the demand for our products and services, and therefore on our financial position and results of operations.

        Future legislative or policy initiatives directed at reducing costs could be introduced at either the federal or state level. We cannot predict what healthcare reform legislation or regulations, if any, will be enacted in the United States or elsewhere, what impact any legislation or regulations related to the healthcare system that may be enacted or adopted in the future might have on our business, or the effect of ongoing uncertainty or public perception about these matters will have on the purchasing decisions of our customers. However, the implementation of new legislation and regulation may materially lower reimbursements for our products, materially reduce medical procedure volumes and significantly and adversely affect our business.

Risks Related to Our Common Stock

Our major stockholders own approximately 42.4% and directors and executive officers own approximately 1.0% of our outstanding common stock as of June 30, 2014, which could limit other stockholders' ability to influence the outcome of key transactions, including changes of control.

        As of June 30, 2014, our current holders of 5% or more of our outstanding common stock held in the aggregate approximately 42% of our outstanding common stock, while our directors and executive officers held in the aggregate approximately 1% of our outstanding common stock. This concentration of ownership may delay, deter or prevent a change of control of our company and will make some transactions more difficult or impossible without the support of these stockholders.

The price of our common stock is volatile and may continue to fluctuate significantly, which could lead to losses for stockholders.

        The trading prices of the stock of high-technology companies of our size can experience extreme price and volume fluctuations. These fluctuations often have been unrelated or out of proportion to the operating performance of these companies. Our stock price has experienced periods of volatility. Broad market fluctuations may also harm our stock price. Any negative change in the public's perception of the prospects of companies that employ similar technology or sell into similar markets could also depress our stock price, regardless of our actual results.

        In addition to the other risk factors described above and below, factors affecting the trading price of our common stock include:

    regulatory developments related to manufacturing, marketing or sale of the CyberKnife or TomoTherapy Systems;

    political or social uncertainties;

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    changes in product pricing policies;

    variations in our operating results, as well as costs and expenditures;

    announcements of technological innovations, new services or service enhancements, strategic alliances or significant agreements by us or by our competitors;

    recruitment or departure of key personnel;

    changes in earnings estimates by analysts or changes in accounting policies; and

    market conditions in our industry, the industries of our customers and the economy as a whole.

The sale of material amounts of common stock could encourage short sales by third parties and depress the price of our common stock.

        The downward pressure on our stock price caused by the sale of a significant number of shares of our common stock or the perception that such sales could occur by any of our significant stockholders could cause our stock price to decline, thus allowing short sellers of our stock an opportunity to take advantage of any decrease in the value of our stock. The presence of short sellers in our common stock may further depress the price of our common stock.

Future issuances of shares of our common stock could dilute the ownership interests of our stockholders.

        Any issuance of equity securities could dilute the interests of our stockholders and could substantially decrease the trading price of our common stock. We may issue equity securities in the future for a number of reasons, including to finance our operations and business strategy (including in connection with acquisitions, strategic collaborations or other transactions), to adjust our ratio of debt to equity, to satisfy our obligations upon the exercise of outstanding options or for other reasons.

        In August 2011, we issued $100 million aggregate principal amount of our 3.75% Convertible Senior Notes due August 1, 2016 (the "3.75% Convertible Notes"), and in February 2013, we issued $115 million aggregate principal amount of our 3.50% Convertible Senior Notes due February 1, 2018 (the "3.50% Convertible Notes"). In April 2014, we issued approximately $70.3 million aggregate principal amount of our 3.50% Series A Convertible Senior Notes due February 1, 2018 (the "3.50% Series A Convertible Notes," and collectively with the 3.75% Convertible Notes and the 3.50% Convertible Notes, the "Convertible Notes") and paid approximately $0.4 million in cash to refinance approximately $70.3 million aggregate principal amount of our 3.50% Convertible Notes. Following such transactions, approximately $44.7 million aggregate principal amount of the 3.50% Convertible Notes remained outstanding. To the extent we issue common stock upon conversion of the Convertible Notes, that conversion would dilute the ownership interests of our stockholders.

Increased leverage as a result of the Convertible Notes offering may harm our financial condition and operating results.

        As of June 30, 2014, we had total consolidated long-term liabilities of approximately $212.1 million, including the liability component of the 3.75% Convertible Notes in the amount of $88.5 million, the 3.50% Convertible Notes in the amount of $44.7 million and the 3.50% Series A Convertible Notes of $62.4 million.

        In April 2014, we refinanced approximately $70.3 million aggregate principal amount of the 3.50% Convertible Notes held by certain investors (the "Participating Holders") with approximately $70.3 million aggregate principal amount of the 3.50% Series A Convertible Notes. In connection with such transactions, we also paid the Participating Holders approximately $0.4 million in cash.

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        Our level of indebtedness could have important consequences to stockholders and note holders, because:

    it could affect our ability to satisfy our obligations under the Convertible Notes;

    a substantial portion of our cash flows from operations will have to be dedicated to interest and principal payments and may not be available for operations, working capital, capital expenditures, expansion, acquisitions or general corporate or other purposes;

    it may impair our ability to obtain additional financing in the future;

    it may limit our flexibility in planning for, or reacting to, changes in our business and industry; and

    it may make us more vulnerable to downturns in our business, our industry or the economy in general.

The conditional conversion features of the 3.75% Convertible Notes and the 3.50% Series A Convertible Notes, if triggered, may adversely affect our financial condition and operating results.

        In the event the conditional conversion features of the 3.75% Convertible Notes or the 3.50% Series A Convertible Notes are triggered, holders of the 3.75% Convertible Notes or the 3.50% Series A Convertible Notes, as applicable, will be entitled to convert such notes at any time during specified periods at their option. If one or more holders elect to convert such notes, unless we elect to satisfy our conversion obligation by delivering solely shares of our common stock (other than paying solely cash in lieu of any fractional share), including if we have irrevocably elected full physical settlement upon conversion, we would be required to make cash payments to satisfy all or a portion of our conversion obligation based on the applicable conversion rate, which could adversely affect our liquidity. In addition, even if holders do not elect to convert such notes, if we have irrevocably elected net share settlement upon conversion we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of such notes as a current rather than long-term liability, which could result in a material reduction of our net working capital.

        The 3.50% Convertible Notes do not provide for such a conditional conversion feature.

Provisions in the indenture for the Convertible Notes, our certificate of incorporation and our bylaws could discourage or prevent a takeover, even if an acquisition would be beneficial in the opinion of our stockholders.

        Provisions of our certificate of incorporation and bylaws could make it more difficult for a third party to acquire us, even if doing so would be beneficial in the opinion of our stockholders. These provisions include:

    authorizing the issuance of "blank check" preferred stock that could be issued by our board of directors to increase the number of outstanding shares and thwart a takeover attempt;

    establishing a classified board of directors, which could discourage a takeover attempt;

    prohibiting cumulative voting in the election of directors, which would limit the ability of less than a majority of stockholders to elect director candidates;

    limiting the ability of stockholders to call special meetings of stockholders;

    prohibiting stockholder action by written consent and requiring that all stockholder actions be taken at a meeting of our stockholders; and

    establishing advance notice requirements for nominations for election to the board of directors or for proposing matters that can be acted upon by stockholders at stockholder meetings.

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        In addition, Section 203 of the Delaware General Corporation Law may discourage, delay or prevent a change of control of our company. Generally, Section 203 prohibits stockholders who, alone or together with their affiliates and associates, own more than 15% of the subject company from engaging in certain business combinations for a period of three years following the date that the stockholder became an interested stockholder of such subject company without approval of the board or 662/3% of the independent stockholders. The existence of these provisions could adversely affect the voting power of holders of common stock and limit the price that investors might be willing to pay in the future for shares of our common stock.

        Furthermore, if a "fundamental change" (as such terms are defined in each the indentures of the Convertible Notes) occurs, holders of the Convertible Notes will have the right, at their option, to require us to repurchase all or a portion of their Convertible Notes. A "fundamental change" generally occurs when there is a change in control of Accuray (acquisition of 50% or more of our voting stock, liquidation or sale of Accuray not for stock) or trading of our stock is terminated. In the event of a "make-whole fundamental change" (as such term is defined in each of the indentures for the Convertible Notes), we may also be required to increase the conversion rate applicable to the Convertible Notes surrendered for conversion in connection with such make-whole fundamental change. A "make-whole fundamental change" is generally a sale of Accuray not for stock in another publicly traded company. In addition, each of the indentures for the Convertible Notes prohibits us from engaging in certain mergers or acquisitions unless, among other things, the surviving entity assumes our obligations under the Convertible Notes.

We have not paid dividends in the past and do not expect to pay dividends in the foreseeable future.

        We have never declared or paid cash dividends on our capital stock. We currently intend to retain all future earnings for the operation and expansion of our business and, therefore, do not anticipate declaring or paying cash dividends in the foreseeable future. The payment of dividends will be at the discretion of our board of directors and will depend on our results of operations, capital requirements, financial condition, prospects, contractual arrangements, and other factors our board of directors may deem relevant. If we do not pay dividends, a return on a stockholders' investment will only occur if our stock price appreciates.

Item 1B.    UNRESOLVED STAFF COMMENTS

        None.

Item 2.    PROPERTIES

Facilities

        We currently lease approximately 164,000 square feet of product development, manufacturing and administrative space in three buildings in Sunnyvale, California, as follows:

    A manufacturing building totaling approximately 50,000 square feet, which is leased to us until December 2018; and

    Two headquarters buildings that are approximately 74,000 square feet and 40,000 square feet, respectively, which are leased to us until December 2023. We have the right to renew the lease term of our headquarters office buildings for two five-year terms upon prior written notice and the fulfillment of certain conditions.

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        Our wholly owned subsidiary, TomoTherapy leases approximately 153,000 square feet of product development, manufacturing and administrative space in three buildings in Madison, Wisconsin, as follows:

    An office building totaling approximately 61,000 square feet, which is leased to TomoTherapy until June 2018;

    A manufacturing facility totaling approximately 56,000 square feet, which is leased to TomoTherapy until April 2018; and

    A portion of an office building totaling approximately 36,000 square feet, which is leased to TomoTherapy until April 2019.

        In addition, our wholly-owned subsidiary, Accuray Accelerator Technology Company Limited, leases approximately 23,000 square feet of space in a manufacturing facility in Chengdu, China until August 2019.

        We, directly or through our subsidiaries, also maintain offices in: Pittsburgh, Pennsylvania; Miami, Florida; Durham, North Carolina; Switzerland; France; China; Hong Kong; Japan; Spain; India; Russia; Germany; Italy; Turkey; Belgium; the United Kingdom; Brazil; and the United Arab Emirates.

        We believe our current facilities are adequate to meet our current needs, but additional space, including additional radiation shielded areas in which systems can be assembled and tested, may be required in the future to accommodate anticipated increases in manufacturing needs.

Item 3.    LEGAL PROCEEDINGS

        Refer to Note 8, Commitments and Contingencies, to the Consolidated Financial Statements for a description of certain legal proceedings currently pending against the Company. From time to time we are involved in legal proceedings arising in the ordinary course of our business.

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

Stock Information

        Our common stock is traded on the Nasdaq Global Select Market under the symbol "ARAY." The high and low sale prices for each quarterly period during our fiscal years ended June 30, 2014 and 2013 are as follows:

 
  High   Low  

Year ended June 30, 2014

             

First Quarter

  $ 7.38   $ 5.41  

Second Quarter

  $ 8.73   $ 6.71  

Third Quarter

  $ 10.65   $ 8.38  

Fourth Quarter

  $ 9.53   $ 7.77  

Year ended June 30, 2013

             

First Quarter

  $ 7.28   $ 5.67  

Second Quarter

  $ 7.19   $ 6.10  

Third Quarter

  $ 6.78   $ 4.18  

Fourth Quarter

  $ 5.90   $ 4.17  

        We have never paid cash dividends on our common stock. Our Board of Directors intends to use any future earnings to support operations and reinvest in the growth and development of our business. There are no current plans to pay cash dividends to common stockholders in the foreseeable future.

        As of August 15, 2014, there were 257 registered stockholders of record of our common stock. Because many of our shares of common stock are held by brokers or other institutions on behalf of stockholders, we are unable to estimate the total number of beneficial stockholders.

        During the year ended June 30, 2014, there were no sales of unregistered equity securities by the Company.

        In April 2014, the Company issued approximately $70.3 million aggregate principal amount of its 3.50% Series A Convertible Notes and paid approximately $0.4 million in cash to refinance approximately $70.3 million aggregate principal amount of its 3.50% Convertible Notes. None of the notes were registered. See the Company's Current Report on Form 8-K filed on April 25, 2014 for a description of the new notes issued.

        The Company does not have a stock repurchase program and has not made any share repurchase, excluding repurchases to satisfy minimum tax withholdings, during the year ended June 30, 2014.

Stock Performance Graph

        The graph set forth below compares the cumulative total stockholder return on our common stock between June 30, 2009 and June 30, 2014, with the cumulative total return of (i) the S&P Healthcare Index and (ii) the Nasdaq Composite Index, over the same period. This graph assumes the investment of $100.00 on June 30, 2009 in our common stock, the S&P Healthcare Index and the Nasdaq Composite Index, and assumes the reinvestment of dividends, if any.

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COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN*
Among Accuray Incorporated, the NASDAQ Composite Index, and the S&P Health Care Index

GRAPHIC


*
$100 invested on 6/30/09 in stock or index, including reinvestment of dividends.

        The comparisons shown in the graph above are based upon historical data. We caution that the stock price performance shown in the graph above is not necessarily indicative of, nor is it intended to forecast, the potential future performance of our common stock. Information used in the graph was obtained from Research Data Group, a source believed to be reliable, but we are not responsible for any errors or omissions in such information.

Item 6.    SELECTED FINANCIAL DATA

        The following selected consolidated financial data should be read in conjunction with, and are qualified by reference to, our consolidated financial statements and related notes and "Management's Discussion and Analysis of Financial Condition and Results of Operations" appearing elsewhere in this Form 10-K. The consolidated statements of operations for the years ended June 30, 2014, 2013 and 2012, and the consolidated balance sheet data at June 30, 2014 and 2013 are derived from, and are qualified by reference to, the consolidated financial statements that have been audited by our independent registered public accounting firm, which are included elsewhere in this Form 10-K. The consolidated statements of operations data for the years ended June 30, 2011 and 2010 and the

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consolidated balance sheet data at June 30, 2012, 2011 and 2010 is derived from our audited consolidated financial statements not included in this Form 10-K.

 
  Years Ended June 30,  
 
  2014(1)   2013(1)(2)   2012(1)(2)   2011(1)(2)   2010  
 
  (in thousands, except per share data)
 

Consolidated Statements of Operations Data:

                               

Net revenue

  $ 369,419   $ 315,974   $ 409,223   $ 222,284   $ 221,625  

Cost of revenue

    226,619     218,334     271,951     115,042     117,607  
                       

Gross profit

    142,800     97,640     137,272     107,242     104,018  

Operating expenses:

                               

Research and development

    53,724     66,197     81,287     41,301     31,523  

Selling and marketing

    61,885     54,372     54,547     37,181     34,187  

General and administrative

    45,335     57,726     57,672     56,589     35,472  
                       

Total operating expenses

    160,944     178,295     193,506     135,071     101,182  
                       

Income (loss) from operations

    (18,144 )   (80,655 )   (56,234 )   (27,829 )   2,836  

Other income (expense), net

    (14,216 )   (13,133 )   (12,521 )   2,288     1  
                       

Income (loss) before provision for income taxes

    (32,360 )   (93,788 )   (68,755 )   (25,541 )   2,837  

Provision for (benefit from) income taxes

    3,088     3,573     2,595     1,116     (4 )
                       

Income (loss) from continuing operations

    (35,448 )   (97,361 )   (71,350 )   (26,657 )   2,841  
                       
                       

Loss from operations of a discontinued variable interest entity

        (3,505 )   (7,103 )   (454 )    

Impairment of indefinite lived intangible asset of discontinued variable interest entity

        (12,200 )            

Loss from deconsolidation of a variable interest entity

        (3,442 )            
                       

Loss from discontinued operations, net of tax of $0

        (19,147 )   (7,103 )   (454 )    

Loss from discontinued operations attributable to non-controlling interest

        (13,289 )   (6,411 )   (429 )    
                       

Loss from discontinued operations attributable to stockholders

        (5,858 )   (692 )   (25 )    
                       

Net Income (loss) attributable to stockholders

  $ (35,448 ) $ (103,219 ) $ (72,042 ) $ (26,682 ) $ 2,841  
                       
                       

Income (loss) per share attributable to stockholders

                               

Basic—continuing operations

  $ (0.47 ) $ (1.33 ) $ (1.01 ) $ (0.44 ) $ 0.05  

Diluted—continuing operations

  $ (0.47 ) $ (1.33 ) $ (1.01 ) $ (0.44 ) $ 0.05  

Basic—discontinued operations

  $   $ (0.08 ) $ (0.01 ) $ (0.00 ) $  

Diluted—discontinued operations

  $   $ (0.08 ) $ (0.01 ) $ (0.00 ) $  

Basic—net income (loss)

  $ (0.47 ) $ (1.41 ) $ (1.02 ) $ (0.44 ) $ 0.05  

Diluted—net income (loss)

  $ (0.47 ) $ (1.41 ) $ (1.02 ) $ (0.44 ) $ 0.05  

Weighted average common shares used in computing income (loss) per share

                               

Basic

    75,804     73,281     70,887     60,085     57,560  
                       
                       

Diluted

    75,804     73,281     70,887     60,085     60,191  
                       
                       

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  As of June 30,  
 
  2014(1)   2013(1)(2)   2012(1)(2)   2011(1)(2)   2010  
 
  (in thousands)
 

Consolidated Balance Sheet Data:

                               

Cash and cash equivalents

  $ 92,346   $ 73,313   $ 143,504   $ 95,906   $ 45,434  

Investments

  $ 79,553   $ 101,084   $   $   $ 99,881  

Working capital

  $ 179,901   $ 180,076   $ 142,084   $ 82,678   $ 152,048  

Total assets

  $ 495,188   $ 475,929   $ 473,170   $ 455,784   $ 263,184  

Long-term debt

  $ 195,612   $ 198,768   $ 79,466   $   $  

Total stockholders' equity

  $ 98,548   $ 106,835   $ 195,625   $ 229,775   $ 170,076  

(1)
We acquired TomoTherapy on June 10, 2011. As a result, our results for the fiscal year ended June 30, 2011 include revenues, cost of revenues and operating expenses of TomoTherapy for the 20-day period from the acquisition date to the end of our fiscal year (June 30, 2011). Our results for the years ended June 30, 2014, 2013 and 2012 include revenues, cost of revenues and operating expenses of TomoTherapy for the full fiscal years. In addition, we made a number of purchase accounting adjustments to the recorded values of assets and liabilities acquired from TomoTherapy as of the acquisition date (June 10, 2011).

(2)
On December 21, 2012, we entered into a Purchase Agreement and Release with Compact Particle Acceleration Corporation, or CPAC, under which all the equity and debt investments held by us in CPAC were purchased by CPAC for a nominal consideration. As a result of the Purchase Agreement and Release, we concluded that we were no longer the primary beneficiary of CPAC, and therefore, deconsolidated CPAC as of December 21, 2012. The results of operations of CPAC, including the loss on deconsolidation of CPAC and the losses attributable to the non-controlling interest recorded for the years ended June 30, 2013, 2012 and 2011 have been reported as discontinued operations.

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Item 7.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

        You should read the following discussion of our consolidated financial condition and results of operations in conjunction with the financial statements and the notes thereto included elsewhere in this report. The following discussion contains forward-looking statements that reflect our plans, estimates and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this report on Form 10-K, particularly in "Risk Factors." See "Special Note Regarding Forward-Looking Statements."

Overview

Products and Markets

Company

        Accuray Incorporated is a radiation oncology company that develops, manufactures, sells and supports precise, innovative treatment solutions. Our leading edge technologies are designed to deliver advanced radiation therapy including radiosurgery, stereotactic body radiation therapy, intensity modulated radiation therapy, image guided radiation therapy and adaptive radiation therapy tailored to the specific needs of each patient. Our suite of products includes the CyberKnife® Systems and the TomoTherapy® Systems. The systems are complementary offerings, optimized to serve separate patient populations treated by the same medical specialty, with advanced capabilities that offer increased treatment flexibility.

        The CyberKnife Systems are robotic systems designed to deliver radiosurgery treatments to cancer tumors anywhere in the body. The CyberKnife Systems are the only dedicated, full body robotic radiosurgery systems on the market. Radiosurgery is an alternative to traditional surgery for tumors and is performed on an outpatient basis in one to five treatment sessions. It allows for the treatment of patients who otherwise would not be treated with radiation, who may not be good candidates for surgery, or who desire non-surgical treatments. The use of radiosurgery with CyberKnife Systems to treat tumors throughout the body has grown significantly in recent years, but currently represents only a small portion of the patients who develop tumors treatable with CyberKnife Systems. A determination of when it may or may not be appropriate to use a CyberKnife System for treatment is at the discretion of the treating physician and depends on the specific patient. However, given the CyberKnife Systems' design to treat focal tumors, the CyberKnife Systems are generally not used to treat (1) very large tumors, which are considerably wider than the radiation beam that can be delivered by CyberKnife Systems, (2) diffuse wide-spread disease, as is often the case for late stage cancers, because they are not localized (though CyberKnife Systems might be used to treat a focal area of the disease) and (3) systemic disease, like leukemias and lymphomas, which are not localized to an organ, but rather involve cells throughout the body.

        In October 2012, we introduced our CyberKnife M6 Series Systems that have the option of: fixed collimator, iris collimator, and/or multi-leaf collimator, or MLC. The initial supplier producing the MLC for our CyberKnife M6 Series Systems experienced low manufacturing yields and initially delivered only a small number of units. Our initial life-cycle testing revealed that the units did not have the durability that we, and our customers, expect in our products. Currently, our internal testing of the MLC has been concluded to our satisfaction and we have begun our evaluation of the MLC in the field, with the goal of ensuring that we introduce a clinically effective and reliable collimator. While we are confident in our path forward, due to the complexity of the MLC, there is still some risk in this project that could cause further delays. In the meantime, and despite the delay in the launch of the MLC upgrade, we are continuing to book orders and install the CyberKnife M6 Series Systems with fixed and iris collimators.

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        We believe that the long term success of the CyberKnife Systems is dependent on a number of factors including the following:

    Adoption of our CyberKnife M6 Series Systems;

    Production and shipment of our MLC that meets the standards that we, and our customers, expect in our products;

    Change in medical practice to utilize radiosurgery more regularly as an alternative to surgery or other treatments;

    Greater awareness among doctors and patients of the benefits of radiosurgery with the CyberKnife Systems;

    Continued evolution in clinical studies demonstrating the safety, efficacy and other benefits of using the CyberKnife Systems to treat tumors in various parts of the body;

    Continued advances in technology that improve the quality of treatments and ease of use of the CyberKnife Systems;

    Improved access to radiosurgery with the CyberKnife Systems in various countries through regulatory approvals;

    Medical insurance reimbursement policies that cover CyberKnife System treatments; and

    Expansion of sales of CyberKnife Systems in countries throughout the world.

        The TomoTherapy Systems are advanced, fully integrated and versatile radiation therapy systems for the treatment of a wide range of cancer types. We began selling TomoTherapy Systems after our acquisition of TomoTherapy Incorporated on June 10, 2011. In October 2012, we introduced TomoTherapy H Series Systems that come in configurations of TomoHTM, TomoHDTM and TomoHDATM. Radiation therapy is used in a variety of ways, often to treat tissue surrounding a tumor area after surgical removal of the tumor and also as the primary treatment for tumors. Radiation therapy treatments impact both cancer cells as well as healthy tissue; therefore the total prescribed radiation dose is divided into many fractions and delivered in an average of 25 to 35 treatment sessions over several weeks. Radiation therapy has been widely available and used in developed countries for decades, though many developing countries do not currently have a sufficient number of radiation therapy systems to adequately treat their domestic cancer patient populations. The number of radiation therapy systems in use and sold each year is currently many times larger than the number of radiosurgery systems. We believe the TomoTherapy Systems offer clinicians and patients significant benefits over other radiation therapy systems in the market. We believe our ability to capture more sales will be influenced by a number of factors including the following:

    Adoption of our TomoTherapy H Series Systems;

    Greater awareness among doctors and patients of the benefits of radiation therapy using TomoTherapy Systems;

    Advances in technology which improve the quality of treatments and ease of use of TomoTherapy Systems;

    Greater awareness among doctors of the improvement in reliability of TomoTherapy Systems; and

    Expansion of TomoTherapy System sales in countries throughout the world.

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Sale of Our Products

        Generating revenue from the sale of our systems is a lengthy process. Selling our systems, from first contact with a potential customer to a signed sales contract that meets backlog criteria could generally span six months to two years. The time from receipt of a signed contract to revenue recognition is governed generally by the time required by the customer to build, renovate or prepare the treatment room for installation of the system. This time varies significantly, generally from six months to two years.

        In the United States, while we primarily market to customers, including hospitals and stand-alone treatment facilities, directly through our sales organization, we also market to customers through a sales agent and group purchasing organizations. Outside the United States, we market to customers directly and through distributors. We have sales and service offices in many countries in Europe, Japan and other countries in Asia, South America, and throughout the world.

Backlog

        We report backlog in the following manner:

    Products: Orders for systems, upgrades excluding those acquired through the upgrade rights included in our Diamond service contracts, are reported in backlog, excluding amounts attributable to post-contractual-services (warranty period services and post warranty services or PCS), installation, training and professional services.

    Service: Orders for PCS, upgrades acquired through the upgrade rights included in our Diamond service contracts, installation services, training and professional services are not reported in backlog.

        For orders that cover both products and services, only the portion of the order that is recognizable as product revenue is reported as backlog. The portion of the order that is recognized as service revenue (for example, PCS) is not included in reported backlog. Product backlog totaled $364.7 million as of June 30, 2014. This included $40.7 million of orders for either new CyberKnife M6 systems configured with an MLC or orders for MLC units to upgrade existing installed CyberKnife M6 systems. Additionally, $33.3 million of CyberKnife orders contain a technology protection plan which provides the customer the option to upgrade to the new platform (M6) when the CyberKnife M6 Series is approved by regulatory authorities in their country and is therefore available for shipment to the customer.

        In order for the product portion of a sales agreement to be counted as backlog, it must meet the following criteria:

    The contract is signed and properly executed by both the customer and us. A customer purchase order that is signed and incorporates the terms of our contract quote will be considered equivalent to a signed and executed contract;

    The contract is non-contingent—it either has cleared all its contingencies or contains no contingencies when signed;

    We have received a minimum deposit or a letter of credit; the sale is a direct channel sale to a government entity, or the product has shipped to a customer with credit sufficient to cover the minimum deposit;

    The specific end customer site has been identified by the customer in the written contract or written amendment;

    For orders in our Latin America region, we request supporting evidence that the end customer has commenced construction to place our products if the site does not already exist; and

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    Less than 2.5 years have passed since the contract met all the criteria above.

        Although our backlog includes only contractual agreements from our customers to purchase CyberKnife Systems or TomoTherapy Systems, we cannot provide assurance that we will convert backlog into recognized revenue due to factors outside our control, which includes, without limitation, changes in customers' needs or financial condition, changes in government or health insurance reimbursement policies, changes to regulatory requirements, or other reasons for cancellation of orders.

Results of Operations

Fiscal 2014 results compared to 2013 (in thousands, except percentages)

 
  Years ended June 30,  
 
  2014   2013    
 
 
  2014 - 2013
% change
 
(Dollars in thousands)
  Amount   %(a)   Amount   %(a)  

Products

  $ 173,607     47 % $ 137,403     43 %   26 %

Services

    195,812     53     178,571     57     10  
                       

Net revenue

  $ 369,419     100 % $ 315,974     100 %   17 %
                       

Gross profit

  $ 142,800     39 % $ 97,640     31 %   46 %
                       

Products gross profit

    76,015     44     51,905     38     46  

Services gross profit

    66,785     34     45,735     26     46  

Research and development expenses

    53,724     15     66,197     21     (19 )

Selling and marketing expenses

    61,885     17     54,372     17     14  

General and administrative expenses

    45,335     12     57,726     18     (21 )

Other expense, net

    14,216     4     13,133     4     8  

Provision for income taxes

    3,088     1     3,573     1     (14 )

Loss from discontinued operations attributable to stockholders

            5,858     2     (100 )
                       

Net loss attributable to stockholders

  $ (35,448 )   10 % $ (103,219 )   33 %   (66 )%
                       
                       

(a)
Expressed as a percentage of total net revenue, except for product and services gross profits which are expressed as a percentage of related product and services revenue.

        On December 21, 2012, we entered into a Purchase Agreement and Release with CPAC, under which all the equity and debt investments held by us in CPAC were purchased by CPAC for a nominal consideration. As a result of the Purchase Agreement and Release, we concluded that we were no longer the primary beneficiary of CPAC, and therefore, deconsolidated CPAC as of December 21, 2012. The results of operations of CPAC, including the loss on deconsolidation of CPAC and the losses attributable to the non-controlling interest recorded for the year ended June 30, 2013, has been reported as discontinued operations. Refer to Note 7, "Investment in CPAC" for further details.

Net revenue

        Revenue derived from sales outside of the Americas region was $213.2 million and $172.4 million for the years ended June 30, 2014 and 2013, respectively, and represented 58% and 55% of our net revenue during these periods, respectively.

        Product net revenue increased by $36.2 million for the year ended June 30, 2014 as compared to the year ended June 30, 2013. Product net revenue increased primarily due to a higher number of units sold offset by product mix. The number of units sold in fiscal 2014 increased by 40% as compared to fiscal 2013. In addition, product revenue upgrades increased by $3.0 million in fiscal 2014.

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        Services net revenue increased by $17.2 million for the year ended June 30, 2014 as compared to the year ended June 30, 2013. The increase of $13.2 million was attributable to a net increase in our installed base and customer conversion to higher priced maintenance contracts (particularly the TomoTherapy Systems). The remaining increase of $4.0 million was primarily due to an increase in installation, training and spare parts revenue due to the increased number of units installed.

Gross profit

        The overall gross profit margin for the year ended June 30, 2014 increased by 8 percentage points as compared to the year ended June 30, 2013. Product gross margin for fiscal 2014 increased by 6 margin points as compared to fiscal 2013 mostly due to increased revenues reducing fixed costs per unit, reduction in charges for obsolete or excess inventory, and due to the favorable impact of a net reduction in backlog intangible asset amortization expense of $1.6 million resulting from the acquisition of TomoTherapy on June 10, 2011. Services gross margin for the year ended June 30, 2014 increased by 8 margin points primarily due to cost reductions associated with the increased reliability of the TomoTherapy Systems and continued revenue growth due to the increase in installed base and contract mix, partially offset by the increase in bonus expense.

Research and development expenses

        Research and development expenses were $53.7 million for the year ended June 30, 2014 as compared to $66.2 million for the year ended June 30, 2013, which represents a decrease of $12.5 million, or 19%. The decrease was primarily due to lower compensation expense of $12.0 million resulting from the re-organization of the research and development function during the third quarter of fiscal 2013. Additionally, project related consulting costs decreased by $4.3 million due to the completion of various research and development projects. The decrease was offset by the higher bonus expense of $3.2 million and higher share-based compensation expense of $0.6 million.

        We anticipate that research and development expenses in fiscal 2015 will be higher than fiscal 2014 based on the current schedule of our development projects.

Selling and marketing expenses

        Selling and marketing expenses for the year ended June 30, 2014 were $61.9 million as compared to $54.4 million for the year ended June 30, 2013, which represents an increase of $7.5 million, or 14%. The increase was partially attributable to a $8.0 million increase in compensation and compensation related expenses, which consisted mainly of the increase in commission expense of $2.9 million due to higher sales, a $2.0 million increase in bonus expense, a $2.1 million increase in payroll expense due to increases in personnel and a $0.9 million increase in share-based compensation expense mainly due to the increase in grants of equity awards and higher values per grant. Consulting expense increased by $0.5 million due to sales optimization initiatives. The increase was offset by lower trade show expense of $1.5 million, which was higher for the year ended June 30, 2013 due to the introduction of two new products at an industry trade show during fiscal 2013.

        We anticipate selling and marketing expenses to increase in fiscal 2015 from fiscal 2014 due to anticipated increases in headcount and compensation expenses.

General and administrative expenses

        General and administrative expenses for the year ended June 30, 2014 were $45.3 million as compared to $57.7 million for the year ended June 30, 2013, which represents a decrease of $12.4 million, or 21%. This decrease was partially attributable to $7.4 million of severance charges incurred in fiscal 2013 for the departure of our former Chief Executive Office, Chief Operating Officer and other employees, and $1.7 million related to lease acceleration and fixed asset disposal charges

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from vacating an office facility in fiscal 2013. The allowance for doubtful accounts expense decreased by $1.5 million in fiscal 2013 due to improved cash collections. In addition, payroll and contractual labor expenses decreased by $2.2 million and consulting, legal and accounting related expenses decreased by $2.5 million due to cost control initiatives. The decrease was offset by higher bonus expense of $2.4 million and higher share-based compensation expense of $1.1 million during the year ended June 30, 2014 as compared to the year ended June 30, 2013.

    Other income (expense), net

        Net other expense for the year ended June 30, 2014 was $14.2 million as compared to $13.1 million for the year ended June 30, 2013, which represents an increase of $1.1 million. In fiscal 2014, we recognized $14.3 million of interest expense related to our Convertible Notes, partially offset by interest income of $0.6 million from our available-for-sale investments and a $0.1 million gain from foreign currency exchange. We also incurred $0.6 million other expense in fiscal 2014 primarily related to the exchange of our 3.50% Convertible Notes to the 3.50% Series A Convertible Notes in April 2014. In fiscal 2013, we recognized net other expense of $13.1 million primarily due to $10.4 million of interest expense related to our Convertible Notes and $2.7 million of foreign currency losses primarily resulting from the depreciation of the Japanese Yen against the U.S. Dollar and the appreciation of the Euro against the U.S. dollar.

    Provision for income taxes

        The provision for income taxes was lower in fiscal 2014 compared to fiscal 2013 mainly due to the activities in international locations—reduction of benefits related to uncertain tax positions offset by the increased foreign earnings.

        At June 30, 2014, we had federal and state net operating loss carryforwards of $320.5 million and $166.8 million, respectively. These federal and state net operating loss carryforwards are available to offset future taxable income, if any, in varying amounts and will begin to expire in 2019 for federal and 2015 for state purposes, respectively. Such net operating loss carryforwards include tax benefits from employee stock option exercises in excess of the share-based compensation expense that has been recognized for these awards. We will record approximately $3.9 million as a credit to additional paid-in capital if and when such excess benefits are ultimately realized. We also had federal and state research and development tax credit carryforwards of approximately $16.1 million and $15.7 million, respectively. If not utilized, the federal research credits will begin to expire in 2019, the California research credits have no expiration date and the other state research credits begin to expire in 2015. Realization of the deferred tax assets, among other factors, is dependent on our ability to generate sufficient taxable income prior to the expiration of the carryforwards. Due to the inconsistent history of net operating income as adjusted for permanent differences, we cannot conclude that the net domestic deferred tax assets will more likely than not be realized. Accordingly, we have recorded a full valuation allowance against our domestic net deferred tax assets.

        At June 30, 2014, there was no provision for U.S. income tax for undistributed earnings of our foreign subsidiaries as it is currently our intention to reinvest these earnings indefinitely in operations outside the U.S. The cumulative amount of such undistributed earnings upon which no U.S. income tax have been provided as of June 30, 2014 was $14.7 million. If repatriated, these earnings could result in a tax expense at the current U.S. Federal statutory tax rate of 35%, subject to available net operating losses and other factors. Subject to limitation, tax on undistributed earnings may also be reduced by foreign tax credits that may be generated in connection with the repatriation of earnings.

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Loss from Discontinued Operations

        The results of operations of CPAC, including the loss on deconsolidation of CPAC and the losses attributable to the non-controlling interest recorded for the years ended June 30, 2013 and 2012 were disclosed as discontinued operations.

Impairment of Indefinite Lived Intangible Assets

        In fiscal 2013, we incurred impairment charges of $12.2 million related to the write-down of our in-process research and development, or IPR&D, asset based on results of research and development work carried out by CPAC, then a variable interest entity consolidated by us. See Note 6, "Goodwill and Purchased Intangible Assets", to the consolidated financial statements for details.

Loss from Deconsolidation of CPAC

        On December 21, 2012, we entered into a Purchase Agreement and Release with CPAC, under which all the equity and debt investments held by us in CPAC were purchased by CPAC for a nominal consideration. As a result of the Purchase Agreement, we concluded that we were no longer the primary beneficiary of CPAC, and therefore, deconsolidated CPAC as of that date. We recorded a loss of $3.4 million in the second quarter of fiscal 2013 due to the write-down of the carrying value of CPAC's net liabilities, the write-off of the receivables from CPAC and the non-controlling interest in CPAC, net of cash consideration received.

Fiscal 2013 results compared to 2012 (in thousands, except percentages)

 
  Years ended June 30,  
 
  2013   2012    
 
 
  2013 - 2012
% change
 
(Dollars in thousands)
  Amount   %(a)   Amount   %(a)  

Products

  $ 137,403     43 % $ 240,472     59 %   (43 )%

Services

    178,571     57     168,751     41     6  
                       

Net revenue

  $ 315,974     100 % $ 409,223     100 %   (23 )%
                       

Gross profit

  $ 97,640     31 % $ 137,272     34 %   (29 )%
                       

Products gross profit

    51,905     38     104,292     43     (50 )

Services gross profit

    45,735     26     32,980     20     39  

Research and development expenses

    66,197     21     81,287     20     (19 )

Selling and marketing expenses

    54,372     17     54,547     13     (0 )

General and administrative expenses

    57,726     18     57,672     14     0  

Other expense, net

    13,133     4     12,521     3     5  

Provision for income taxes

    3,573     1     2,595     1     38  

Loss from discontinued operations attributable to stockholders

    5,858     2     692         747  
                       

Net loss attributable to stockholders

  $ (103,219 )   33 % $ (72,042 )   18 %   43 %
                       
                       

(a)
Expressed as a percentage of total net revenue, except for product and services gross profits which are expressed as a percentage of related product and services revenue.

Net revenue

        Revenue derived from sales outside of the Americas region was $172.4 million and $220.2 million for the years ended June 30, 2013 and 2012, respectively, and represented 55% and 54% of our net sales during these periods, respectively.

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        Total net revenue decreased by $93.2 million in fiscal 2013 compared to fiscal 2012, primarily due to a $103.1 million decrease in product revenue, partially offset by an increase in service revenues of $9.8 million. The decrease in product revenue was primarily attributable to a 48% decrease in the number of systems sold during fiscal 2013 as compared to fiscal 2012. During fiscal 2013, product revenues from the sale of our systems slowed primarily in the North America and Asia-Pacific regions due to the slowdown in capital expenditures by hospitals, continued uncertainties around economic growth in certain key markets, the delay in availability of the new models of the CyberKnife Systems and the TomoTherapy Systems, and the lack of availability of the MLC option for the new CyberKnife M6 Series Systems.

        Services revenues during fiscal 2013 increased by $9.8 million as compared to fiscal 2012. Service revenues during fiscal 2012 included $11.5 million of service revenues arising from purchase accounting adjustments related to the TomoTherapy acquisition which was completed in June 2011. Such purchase accounting adjustments were not material during fiscal 2013. Excluding such adjustments, service revenues increased by $21.3 million during fiscal 2013 as compared to fiscal 2012 primarily due to an increase in the installed base by 58 systems contributing $14.5 million of incremental revenue, sales of higher priced maintenance contracts (particularly to customers using the TomoTherapy systems) contributing $3.0 million of incremental revenue and increased revenues of $4.5 million resulting from providing direct maintenance services to customers in Japan.

Gross profit

        The overall gross profit margin during fiscal 2013 declined by 3 percentage points as compared to fiscal 2012. Product margins were lower during fiscal 2013 primarily due to higher cost of units sold attributed to higher per-unit production-related costs resulting from lower volume of production and higher charges for write-down of inventories, partially offset by the favorable impact of a net reduction in purchase accounting adjustments resulting from the acquisition of TomoTherapy on June 10, 2011. Service margins were higher during fiscal 2013 primarily due to improvements in the reliability of the TomoTherapy Systems leading to reduced parts and labor usage and other cost saving initiatives, partially offset by the unfavorable impact of a net reduction in purchase accounting adjustments resulting from the acquisition of TomoTherapy on June 10, 2011.

        In accordance with purchase accounting standards, a number of adjustments were recorded to the value of assets and liabilities of TomoTherapy as of the closing of the acquisition on June 10, 2011. These included the write-up of inventory based on selling price rather than cost of manufacturing, the write-down of deferred product revenue, the write-up of deferred service revenue, and the recording of intangible assets related to developed technology and to backlog existing at the time of the acquisition. On the acquisition date, deferred service and product revenues were valued at cost plus a reasonable margin. Purchase accounting adjustments reduced gross profit for fiscal 2013 by $8.6 million as follows: Product revenues were reduced by $0.4 million, while product cost of revenues was increased by $8.5 million; Services revenues were increased by $0.1 million while services cost of revenues was decreased by $0.2 million. Purchase accounting adjustments decreased gross profits for fiscal 2012 by $14.9 million as follows: Product revenues were reduced by $2.3 million while product cost of revenues was increased by $23.5 million; Services revenues were increased by $11.5 million while services cost of revenues was increased by $0.6 million.

Research and development expenses

        Research and development expenses were $66.2 million for the year ended June 30, 2013 as compared to $81.3 million for the year ended June 30, 2012, which represents a decrease of $15.1 million, or 19%. The decrease was primarily due to decreases in consulting and project related costs of $8.0 million, compensation related costs of $3.7 million, facilities and information technology related costs of $2.4 million and travel related costs of $0.9 million resulting from cost control

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initiatives and a reduction in development related activities after two new product introductions at an industry trade show in October 2012 as well as a re-organization of the research and development function during the third quarter of fiscal 2013.

Selling and marketing expenses

        Selling and marketing expenses for the year ended June 30, 2013 were $54.4 million as compared to $54.6 million for the year ended June 30, 2012, which represents a decrease of $0.2 million. The decrease was partially attributable to lower travel related expenses of $0.8 million and other operational expenses of $0.2 million due to cost control initiatives, partially offset by higher tradeshow and advertising related expenses of $0.8 million related to the introduction of two new products at an industry trade show in October 2012.

General and administrative expenses

        General and administrative expenses remained relatively consistent between fiscal 2013 and 2012. However, we incurred additional compensation and severance related charges of $7.4 million during fiscal 2013 due to the departure of our former Chief Executive Office, Chief Operating Officer and other employees during the second quarter of fiscal 2013 and the restructuring of operations during the third quarter of fiscal 2013. During fiscal 2013, we incurred $1.4 million of lease termination charge, net of estimated sub-lease income, for the remaining lease obligations on an office facility that we vacated, and a charge of $0.3 million related to the disposition of certain fixed assets and the write-down of leasehold improvements at this office facility. Additionally, we incurred higher operational costs of $1.6 million during fiscal 2013 primarily due to write-off of non-recoverable VAT. This was partially offset by lower consulting, legal and accounting related expenses of $5.4 million, lower compensation related costs of $3.2 million, lower travel related expenses of $1.0 million and lower facilities and information technology related costs of $0.7 million due to cost control initiatives.

Other income (expense), net

        Net other expense increased by $0.6 million during fiscal 2013 as compared to fiscal 2012. During fiscal 2013, we recognized net other expense of $13.1 million primarily due to $10.4 million of interest expense related to our 3.75% and 3.50% Convertible Notes and $2.7 million of foreign currency losses primarily resulting from the depreciation of the Japanese Yen against the U.S. Dollar and the appreciation of the Euro against the U.S. Dollar and their effects on the re-measurement of balances denominated in those currencies.

        During fiscal 2012, we recognized net other expense of $12.5 million primarily due to $7.4 million of interest expense related to our 3.75% Convertible Notes, which were issued on August 1, 2011 and $4.4 million of foreign currency losses primarily resulting from the strengthening of the U.S. Dollar against the Euro and the Swiss Franc and their effects on the re-measurement of balances denominated in those currencies.

Provision for income taxes

        The provision for income taxes was higher in fiscal 2013 compared to fiscal 2012 primarily due to the increased earnings in international locations.

Share-based Compensation Expense

        In fiscal 2014, 2013 and 2012, we recorded share-based compensation expense of $11.3 million, $8.2 million and $8.5 million, respectively, related to awards under our incentive stock plans and restricted stock awards, or RSAs, assumed in connection with the acquisition of TomoTherapy. Share-based compensation expense was recorded net of estimated forfeitures (excludes share-based awards

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not expected to vest). As of June 30, 2014, we had approximately $20.2 million of unrecognized compensation expense, net of estimated forfeitures, related to unvested stock options, Employee Stock Purchase Plan, or ESPP shares, restricted stock units, or RSUs, market stock units, or MSUs, which we expect to recognize over a weighted average period from 0.6 to 2.4 years.

Liquidity and Capital Resources

        At June 30, 2014, we had $92.3 million in cash and cash equivalents and $79.6 million in investments. Cash from operations could be affected by various risks and uncertainties, including, but not limited to the risks included in Part I, Item 1A titled "Risk Factors." Also refer to Note 13, "Debt" to the consolidated financial statements for discussion of the Convertible Notes. Based on our current business plan and revenue prospects, we believe that we will have sufficient cash resources and anticipated cash flows to fund our operations for at least the next 12 months.

        In addition, the undistributed earnings of our foreign subsidiaries at June 30, 2014 are considered to be indefinitely reinvested and unavailable for distribution in the form of dividends or otherwise. Accordingly, no provisions for U.S. income taxes have been provided thereon. We anticipate that we have adequate liquidity and capital resources and would not need to repatriate earnings. As of June 30, 2014, we had approximately $45.9 million of cash and cash equivalents at our foreign subsidiaries.

Cash Flows

 
  Fiscal years ended June 30,  
 
  2014   2013   2012  

Net cash provided by (used in) operating activities

  $ 346   $ (66,177 ) $ (38,279 )

Net cash provided by (used in) investing activities

    8,492     (121,622 )   (12,153 )

Net cash provided by financing activities

    8,377     117,917     100,549  

Effect of exchange rate changes on cash and cash equivalents

    1,818     (309 )   (2,519 )
               

Net increase (decrease) in cash and cash equivalents

  $ 19,033   $ (70,191 ) $ 47,598  
               
               

Operating Activities

        Net cash provided by operating activities was $0.3 million in fiscal 2014 as compared to $66.2 million used in 2013. Net cash provided by operating activities in 2014 was primarily related to:

    Net loss of $35.4 million;

    Net loss offset by non-cash items of $42.9 million related to depreciation of fixed assets, amortization of intangible assets, share-based compensation, amortization and accretion of discount and premium on investments, amortization of debt issuance costs, accretion of interest on long-term debt, recovery of doubtful accounts receivable, loss on disposal of property and equipment, and provision for excess and obsolete inventory;

    Increase in accounts receivable of $14.8 million as a result of increased sales of $53.4 million offset by cash collections from customers in fiscal 2014;

    Increase in inventories of $8.3 million due to increase in purchases to support sales;

    Increase in prepaid expenses and other assets of $5.2 million primarily due to the increase in prepaid commissions balance of $2.8 million as a result of the increase in orders and prepaid taxes of $2.9 million mostly in foreign locations;

    Increase in accounts payable of $1.1 million due to the increase in inventory and timing of payments;

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    Increase in accrued liabilities of $21.7 million primarily due to the increase in accrued bonus expense of $14.2 million, increase in other accrued compensation related expense of $6.0 million;

    Increase in customer advances of $1.7 million due to the payments received for the future revenue deliverables; and

    Increase in deferred revenue of $4.0 million due to the timing of customer billing and revenue recognition, and increase deferred cost of $4.9 million due to the timing of inventory transfer.

        Net cash used in operating activities was $66.2 million in fiscal 2013 as compared to $38.3 million used in 2012. Net cash used in operating activities in 2013 was primarily related to:

    Net loss of $116.5 million, comprised of $97.4 million from continuing operations and $19.1 million from discontinued operations;

    Non-cash related items of $62.1 million corresponding to the depreciation and amortization expenses, impairment charges related to in-process research and development assets, share-based compensation expenses, inventory write-downs due to obsolescence of certain customized parts, accretion of interest expense on the 3.75% Convertible Notes and loss on deconsolidation of CPAC;

    Increase in inventories of $5.1 million due to delays in shipping newly introduced products;

    Decrease in accounts receivable of $10.9 million due to lower billings during the year; and

    Decrease in accrued liabilities of $18.5 million due to timing of vendor payments, payment of accrued bonuses for the prior fiscal year, reduction of compensation related accruals, payments for inventory buy-back obligations and other liabilities.

Cash Flows From Investing Activities

        Net cash provided by investing activities was $8.5 million in fiscal 2014, which primarily consisted of purchases of property and equipment of $11.9 million and purchases of investments of $44.2 million, offset by sales and maturities of short-term investments of $64.6 million.

        Net cash used in investing activities was $121.6 million in fiscal 2013, which was primarily comprised of purchases of investment securities for $102.4 million, purchases of property and equipment for $15.1 million and $3.9 million related to the acquisition of Morphormics.

Cash Flows From Financing Activities

        Net cash provided by financing activities during fiscal 2014 was $8.4 million, attributable to $9.1 million from proceeds from employee stock plans, partially offset by $0.3 million of taxes paid related to net share settlement of equity awards and $0.4 million in payments to convertible note holders to refinance approximately $70.3 million aggregate principal amount of our 3.50% Convertible Notes.

        Net cash provided by financing activities during fiscal 2013 was $117.9 million. In February 2013, we issued the 3.50% Convertible Notes for net proceeds of $110.5 million. In addition, we received cash proceeds of $7.5 million from the exercise of stock options by our employees and the purchase of common stock under our ESPP.

Operating Capital and Capital Expenditure Requirements

        Our future capital requirements depend on numerous factors. These factors include but are not limited to the following:

    Revenue generated by sales of our products and service plans;

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    Costs associated with our sales and marketing initiatives and manufacturing activities;

    Facilities, equipment and IT systems required to support current and future operations;

    Rate of progress and cost of our research and development activities;

    Costs of obtaining and maintaining FDA and other regulatory clearances of our products;

    Effects of competing technological and market developments;

    Number and timing of acquisitions and other strategic transactions.

        We believe that our current cash, cash equivalents and investments will be sufficient to meet our anticipated cash needs for working capital and capital expenditures for at least 12 months. If these sources of cash, cash equivalents and investments are insufficient to satisfy our liquidity requirements, we may seek to sell additional equity or debt securities or obtain additional credit facilities. The sale of additional equity or convertible debt securities could result in dilution to our stockholders. If additional funds are raised through the issuance of debt securities, these securities could have rights senior to those associated with our common stock and could contain covenants that would restrict our operations. Additional financing may not be available at all, or in amounts or on terms acceptable to us. If we are unable to obtain this additional financing, we may be required to reduce the scope of our planned product development and marketing efforts.

Contractual Obligations and Commitments

        The following is a schedule summarizing our obligations to make future payments under contractual obligations as of June 30, 2014:

 
   
  Payments due by period  
 
  Total   Less than
1 year
  1 - 3 years   3 - 5 years   More than
5 years
 

Convertible Notes(1)

  $ 215,000   $   $ 100,000   $ 115,000   $  

Interest on Convertible Notes

    22,236     7,775     12,113     2,348      

Operating leases

    53,645     6,427     16,500     12,749     17,969  
                       

Total

  $ 290,881   $ 14,202   $ 128,613   $ 130,097   $ 17,969  
                       
                       

(1)
Any conversion, redemption or purchase of Convertible Notes would impact our cash payments noted in the preceding table.

        Our purchase commitments and obligations include all open purchase orders and contractual obligations in the ordinary course of business, including commitments with contract manufacturers and suppliers, for which we have not received the goods or services and acquisition and licensing of intellectual property. A majority of these purchase obligations are due within a year. Although open purchase orders are considered enforceable and legally binding, the terms generally allow us the option to cancel, reschedule, and adjust our requirements based on our business needs prior to the delivery of goods or performance of services, and hence, have not been included in the table above.

Off Balance Sheet Arrangements

        We do not have any off balance sheet arrangements.

Critical Accounting Policies and Estimates

        The discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with accounting principles

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generally accepted in the United States of America, or GAAP. The preparation of these consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, as well as revenue and expenses during the reporting periods. We evaluate our estimates and judgments on an ongoing basis. We base our estimates on historical experience and on various other factors we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities. Actual results could therefore differ materially from those estimates if actual conditions differ from our assumptions.

        All of our significant accounting policies and methods used in the preparation of our consolidated financial statements are described in Note 2, Summary of Significant Accounting Policies, to the consolidated financial statements. The methods, estimates and judgments that we use in applying our accounting policies require us to make difficult and subjective judgments, often as a result of the need to make estimates regarding matters that are inherently uncertain. Management believes the critical accounting policies and estimates are those related to revenue recognition, business combinations and assessment of recoverability of goodwill and intangible assets, valuation of inventories, share-based compensation expense, convertible notes, income taxes, allowance for doubtful accounts and loss contingencies.

Revenue Recognition

        We frequently enter into sales arrangements with customers that contain multiple elements or deliverables and we have to make a number of reasoned judgments with respect to elements of these sales arrangements, including how to allocate the proceeds received from an arrangement, whether there are multiple elements in the arrangement, whether any undelivered elements are essential to the functionality of the delivered elements and the appropriate timing of revenue recognition with respect to these arrangements. For sale arrangements that contain multiple elements, we allocate the arrangement consideration to each element based on the relative selling price method, whereby the relative selling price of each deliverable is determined using vendor specific objective evidence, or VSOE, of fair value, if it exists. VSOE of fair value for each element is based on our standard rates charged for the product or service when such product or service is sold separately or based upon the price established by the Company's pricing committee when that product or service is not yet being sold separately. When we are not able to establish VSOE for all deliverables in an arrangement with multiple elements, which may be due to us infrequently selling each element separately, not pricing products within a narrow range, or only having a limited sales history, we attempt to determine the selling price of each element based on third-party evidence of selling price, or TPE, as determined based on competitors' prices for similar deliverables when sold separately. TPE typically is difficult to establish due to the proprietary differences of competitive products and difficulty in obtaining reliable competitive standalone pricing information. When we are not able to establish selling price using VSOE or TPE, we use our best estimate of selling price, or BESP, in the allocation of arrangement consideration. The objective of BESP is to determine the price at which we would transact a sale if the product or service were sold on a stand-alone basis. We determine BESP for a product or service by considering multiple factors including, but not limited to, pricing practices, internal costs, geographies and gross margin. The determination of BESP is made through consultation with our pricing committee, taking into consideration its overall go-to-market pricing strategy.

        Revenue recognition also depends on all or a combination of the following: timing of shipment, completion of installation, customer acceptance and the readiness of customers' facilities. If shipments are not made on scheduled timelines, installation schedules are delayed or if the products are not accepted by the customer in a timely manner, our reported revenues may differ materially from expectations.

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Business Combinations and Assessment of Recoverability of Goodwill and Intangible Assets

        Our methodology for allocating the purchase price relating to business combinations is determined through established valuation techniques. The allocation of the purchase price to intangible assets requires us to make significant estimates and assumptions, including estimates of future cash flows expected to be generated by the acquired assets and appropriate discount rate for those cash flows. Goodwill represents the excess of the purchase price over the fair value of tangible and identified intangible net assets of businesses acquired. Goodwill is not amortized, but is evaluated for impairment on an annual basis and when impairment indicators are present. We have one operating segment and one reporting unit. Therefore, our consolidated net assets, including existing goodwill and other intangible assets, are considered to be the carrying value of the reporting unit. We estimate the fair value of the reporting unit based on the closing price of our common stock on the trading day closest to the annual review date multiplied by the outstanding shares on that date. If the carrying value of the reporting unit is in excess of its fair value, an impairment may exist, and we must perform the second step of the analysis, in which the implied fair value of the goodwill is compared to its carrying value to determine the impairment charge, if any. If the estimated fair value of the reporting unit exceeds the carrying value of the reporting unit, goodwill is not impaired and no further analysis is required.

        We make judgments about the recoverability of purchased intangible assets with finite lives whenever events or changes in circumstances indicate that impairment may exist. Recoverability of purchased intangible assets with finite lives is measured by comparing the carrying amount of the asset to the future undiscounted cash flows the asset is expected to generate. Impairment, if any, is measured as the amount by which the carrying value exceeds the fair value of the impaired asset. We review indefinite-lived intangible assets for impairment annually or whenever events or changes in circumstances indicate the carrying value may not be recoverable. If the asset is considered to be impaired, the amount of any impairment is measured as the difference between the carrying value and the fair value of the impaired asset.

        Assumptions and estimates about future values and remaining useful lives of our purchased intangible assets are complex and subjective. They can be affected by a variety of factors, including external factors such as industry and economic trends and internal factors such as changes in our business strategy and our internal forecasts.

Valuation of Inventories

        The valuation of inventory requires us to estimate obsolete or excess inventory as well as damaged inventory. The determination of obsolete or excess inventory requires us to estimate the future demand for our products. We regularly review inventory quantities on hand and adjust for excess and obsolete inventory based primarily on historical usage rates and our estimates of product demand to support future sales and service. If our demand forecast for specific products is greater than actual demand and we fail to reduce purchasing and manufacturing output accordingly, we could be required to write off inventory, which would negatively impact our gross margin.

Share-Based Compensation Expense

        We use the Black-Scholes option valuation model to estimate the fair value of stock options and ESPP shares. These valuation models require the input of highly subjective assumptions, the most significant of which is our estimates of expected volatility and the expected term of the award. Our expected volatility is derived from the historical volatilities of our common stock. Prior to the second quarter of fiscal 2013, our expected volatility was based on the historical volatilities of several unrelated public companies within industries related to our business. We estimate the expected term of stock option by taking the average of the vesting term and the contractual term of the option, as illustrated by the simplified method. We use the Monte-Carlo simulation model to estimate the fair value of

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MSUs. The assumptions used in calculating the fair value of share-based payment awards represent management's best estimates, but these estimates involve inherent uncertainties and the application of management judgment. As a result, if factors change and we use different assumptions, our share-based compensation expense could be materially different in the future.

        We recognize compensation cost for only those shares expected to vest over the requisite service period of the award. We estimate our forfeiture rate based on an analysis of our actual forfeitures and will continue to evaluate the appropriateness of the forfeiture rate based on recent forfeiture activity and expected future employee turnover. Changes in the estimated forfeiture rate can have a significant effect on reported share-based compensation expense, as the cumulative effect of adjusting the rate for all expense amortization is recognized in the period the forfeiture estimate is changed.

Convertible Notes

        We account for convertible notes in accordance with ASC 470-20 Debt with Conversion and Other Options. ASC 470-20 clarifies the accounting for convertible debt instruments that may be settled in cash upon conversion, including partial cash settlement at our election. ASC 470-20 specifies that an issuer of such instruments should separately account for the liability and equity component of the conversion option. The amount recorded as debt is based on the fair value of the debt component as a standalone instrument, determined using an average interest rate for similar nonconvertible debt issued by entities with credit ratings comparable to ours at the time of issuance. The difference between the debt recorded at inception and its principal amount is accreted to principal during the estimated life of the note.

Income Taxes

        We determine our current and deferred tax provisions based on estimates and assumptions that could differ from the actual results reflected in our income tax returns filed during the subsequent year. We record adjustments based on filed returns when we have identified and finalized them, which is generally in the third quarter of the subsequent year for U.S. federal and state provisions, respectively. We have placed a full valuation allowance on all net U.S. deferred tax assets because realization of these tax benefits through future taxable income cannot be reasonably assured. We intend to maintain the valuation allowance until sufficient positive evidence exists to support the reversal of the valuation allowance. Any decision to reverse part or all of the valuation allowance would be based on our estimate of future profitability. If our estimate were to be wrong, we could be required to charge potentially significant amounts to income tax expense to establish a new valuation allowance.

        Our effective tax rate includes the impact of certain undistributed foreign earnings for which we have not provided U.S. taxes because we plan to reinvest such earnings indefinitely outside the United States. We plan foreign earnings remittance amounts based on projected cash flow needs as well as the working capital and long-term investment requirements of our foreign subsidiaries and our domestic operations. Material changes in our estimates of cash, working capital and long-term investment requirements in the various jurisdictions in which we do business could impact our effective tax rate. We are subject to income taxes in the United States and certain foreign countries, and we are subject to corporate income tax audits in some of these jurisdictions. We believe that our tax return positions are fully supported, but tax authorities are likely to challenge certain positions, which may not be fully sustained. However, our income tax expense includes amounts intended to satisfy income tax assessments that result from these challenges. Determining the income tax expense for these potential assessments and recording the related assets and liabilities requires management judgments and estimates. We evaluate our uncertain tax positions in accordance with the guidance for accounting for uncertainty in income taxes. We believe that our reserve for uncertain tax positions is adequate. We review our reserves quarterly, and we may adjust such reserves because of proposed assessments by tax authorities, changes in facts and circumstances, issuance of new regulations or new case law, previously

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unavailable information obtained during the course of an examination, negotiations between tax authorities of different countries concerning our transfer prices, or the expiration of statutes of limitations.

Allowance for Doubtful Accounts

        We evaluate the creditworthiness of our customers prior to authorizing shipment for all major sale transactions. On a quarterly basis, we evaluate aged items in the accounts receivable aging report and provide an allowance in an amount we deem adequate for doubtful accounts. If our evaluation of our customers' financial conditions does not reflect our future ability to collect outstanding receivables, additional provisions may be needed and our operating results could be negatively affected.

Loss Contingencies

        As discussed in Note 8, Commitments and Contingencies, to the consolidated financial statements, we are involved in various lawsuits, claims and proceedings that arise in the ordinary course of business. We record a provision for a liability when we believe that it is both probable that a liability has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. We review these provisions at least quarterly and adjust these provisions to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information. Litigation is inherently unpredictable and is subject to significant uncertainties, some of which are beyond our control. Should any of these estimates and assumptions change or prove to have been incorrect, we could incur significant charges related to legal matters which could have a material impact on our results of operations, financial position and cash flows.

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Item 7A.    QUANTITATIVE & QUALITATIVE DISCLOSURES ABOUT MARKET RISK

        We do not utilize derivative financial instruments, derivative commodity instruments or other market risk sensitive instruments, positions or transactions.

Foreign Currency Exchange Rate Risk

        Future fluctuations in the value of the U.S. dollar may affect the price competitiveness of our products outside the United States. For direct sales outside the United States, we sell in both U.S. dollars and local currencies, which could expose us to additional foreign currency risks, including changes in currency exchange rates. Our operating expenses in countries outside the United States, are payable in foreign currencies and therefore expose us to currency risk. To the extent that management can predict the timing of payments under sales contracts or for operating expenses that are denominated in foreign currencies, we may engage in hedging transactions to mitigate such risks in the future.

Interest Rate Risk

        We maintain an investment portfolio of various holdings, types, and maturities. These securities are generally classified as available for sale and consequently, are recorded on the balance sheet at fair value with unrealized gains and losses reported as a separate component of accumulated other comprehensive income (loss). At any time, a sharp rise or decline in interest rates could have a material adverse impact on the fair value of our investment portfolio. Likewise, increases and decreases in interest rates could have a material impact on interest earnings for our portfolio. The following table presents the hypothetical change in fair values in the financial instruments we held at June 30, 2014 that are sensitive to changes in interest rates. The modeling technique used measures the change in fair values arising from selected potential changes in interest rates on our investment portfolio, which had a fair value of $79.6 million at June 30, 2014. Market changes reflect immediate hypothetical parallel shifts in the yield curve of plus or minus 100, 75, 50 and 25 basis points (in thousands).

 
  Decrease in interest rates   Increase in interest rates  
Change in interest rate
  -100 BPS   -75 BPS   -50 BPS   -25 BPS   25 BPS   50 BPS   75 BPS   100 BPS  

Unrealized gain (loss)

  $ 1,151   $ 861   $ 572   $ 285   $ (282 ) $ (563 ) $ (842 ) $ (1,119 )

Equity Price Risk

        On August 1, 2011, we issued $100 million aggregate principal amount of 3.75% Convertible Notes. Upon conversion, we can settle the obligation by issuing our common stock, cash or a combination thereof at an initial conversion rate equal to 105.5548 shares of common stock per $1,000 principal amount of the 3.75% Convertible Notes, which is equivalent to a conversion price of approximately $9.47 per share of common stock, subject to adjustment. There is no equity price risk if the share price of our common stock is below $9.47 upon conversion of the 3.75% Convertible Notes. For every $1 that the share price of our common stock exceeds $9.47, we expect to issue an additional $10.6 million in cash or shares of our common stock, or a combination thereof, if all of the 3.75% Convertible Notes are converted.

        On April 24, 2014, we issued approximately $70.3 million aggregate principal amount of 3.50% Series A Convertible Notes. Upon conversion, we can settle the obligation by issuing our common stock, cash or a combination thereof at an initial conversion rate equal to 187.6877 shares of common stock per $1,000 principal amount of the 3.50% Series A Convertible Notes, which is equivalent to a conversion price of approximately $5.33 per share of common stock, subject to adjustment. There is no equity price risk if the share price of our common stock is below $5.33 upon conversion of the 3.50% Series A Convertible Notes. For every $1 that the share price of our common stock exceeds $5.33, we expect to issue an additional $13.2 million in cash or shares of our common stock, or a combination thereof, if all of the 3.50% Series A Convertible Notes are converted.

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Item 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ACCURAY INCORPORATED

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders
Accuray Incorporated

        We have audited the accompanying consolidated balance sheets of Accuray Incorporated (a Delaware Corporation) and subsidiaries (the "Company") as of June 30, 2014 and 2013, and the related consolidated statements of operations and comprehensive loss, stockholders' equity, and cash flows for each of the three years in the period ended June 30, 2014. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our 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 audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

        In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Accuray Incorporated and subsidiaries as of June 30, 2014 and 2013, and the results of their operations and their cash flows for each of the three years in the period ended June 30, 2014 in conformity with accounting principles generally accepted in the United States of America.

        We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company's internal control over financial reporting as of June 30, 2014, based on criteria established in the 1992 Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated August 29, 2014 expressed an unqualified opinion.

/s/ GRANT THORNTON LLP

San Francisco, California
August 29, 2014

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Accuray Incorporated

Consolidated Balance Sheets

(in thousands, except share and per share amounts)

 
  June 30,
2014
  June 30,
2013
 

Assets

             

Current assets:

             

Cash and cash equivalents

  $ 92,346   $ 73,313  

Short-term investments

    79,553     101,084  

Restricted cash

    1,492     2,728  

Accounts receivable, net of allowance for doubtful accounts of $976 and $2,160, respectively

    72,152     55,458  

Inventories

    87,752     81,592  

Prepaid expenses and other current assets

    17,873     12,595  

Deferred cost of revenue

    13,302     9,165  
           

Total current assets

    364,470     335,935  

Property and equipment, net

    34,391     34,733  

Goodwill

    58,091     59,368  

Intangible assets, net

    23,517     31,896  

Deferred cost of revenue

    2,899     2,149  

Other assets

    11,820     11,848  
           

Total assets

  $ 495,188   $ 475,929  
           
           

Liabilities and stockholders' equity

             

Current liabilities:

             

Accounts payable

  $ 15,639   $ 15,920  

Accrued compensation

    32,569     12,461  

Other accrued liabilities

    24,464     22,893  

Customer advances

    19,804     17,692  

Deferred revenue

    92,093     86,893  
           

Total current liabilities

    184,569     155,859  

Long-term liabilities:

             

Long-term other liabilities

    6,593     5,382  

Deferred revenue

    9,866     9,085  

Long-term debt

    195,612     198,768  
           

Total liabilities

    396,640     369,094  

Commitment and contingencies (Note 5)

             

Stockholders' Equity:

             

Preferred stock, $0.001 par value; authorized: 5,000,000 shares; no shares issued and outstanding

         

Common stock, $0.001 par value; authorized: 200,000,000 shares as of June 30, 2014 and 2013 respectively; issued and outstanding: 77,178,365 and 74,587,231 shares at June 30, 2014 and 2013, respectively

    77     75  

Additional paid-in capital

    451,750     424,524  

Accumulated other comprehensive income

    1,815     1,882  

Accumulated deficit

    (355,094 )   (319,646 )
           

Total stockholders' equity

    98,548     106,835  
           

Total liabilities and stockholders' equity

  $ 495,188   $ 475,929  
           
           

   

The accompanying notes are an integral part of these consolidated financial statements.

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Accuray Incorporated

Consolidated Statements of Operations and Comprehensive Loss

(in thousands, except per share amounts)

 
  Years Ended June 30,  
 
  2014   2013   2012  

Net revenue:

                   

Products

  $ 173,607   $ 137,403   $ 240,472  

Services

    195,812     178,571     168,751  
               

Total net revenue

    369,419     315,974     409,223  

Cost of revenue:

                   

Cost of products

    97,592     85,498     136,180  

Cost of services

    129,027     132,836     135,771  
               

Total cost of revenue

    226,619     218,334     271,951  
               

Gross profit

    142,800     97,640     137,272  

Operating expenses:

                   

Research and development

    53,724     66,197     81,287  

Selling and marketing

    61,885     54,372     54,547  

General and administrative

    45,335     57,726     57,672  
               

Total operating expenses

    160,944     178,295     193,506  
               

Loss from operations

    (18,144 )   (80,655 )   (56,234 )

Other expense, net

    (14,216 )   (13,133 )   (12,521 )
               

Loss before provision for income taxes

    (32,360 )   (93,788 )   (68,755 )

Provision for income taxes

    3,088     3,573     2,595  
               

Loss from continuing operations

    (35,448 )   (97,361 )   (71,350 )
               

Loss from discontinued operations:

                   

Loss from operations of a discontinued variable interest entity

        (3,505 )   (7,103 )

Impairment of indefinite lived intangible asset of discontinued variable interest entity

        (12,200 )    

Loss from deconsolidation of a variable interest entity

        (3,442 )    
               

Loss from discontinued operations, net of tax of $0

        (19,147 )   (7,103 )

Loss from discontinued operations attributable to non-controlling interest

        (13,289 )   (6,411 )
               

Loss from discontinued operations attributable to stockholders

        (5,858 )   (692 )
               

Net loss attributable to stockholders

  $ (35,448 ) $ (103,219 ) $ (72,042 )
               
               

Loss per share attributable to stockholders

                   

Basic and diluted—continuing operations

  $ (0.47 ) $ (1.33 ) $ (1.01 )

Basic and diluted—discontinued operations

  $   $ (0.08 ) $ (0.01 )

Basic and diluted—net loss

  $ (0.47 ) $ (1.41 ) $ (1.02 )

Weighted average common shares used in computing loss per share

                   

Basic and diluted

    75,804     73,281     70,887  
               
               

Net loss attributable to stockholders

  $ (35,448 ) $ (103,219 ) $ (72,042 )

Foreign currency translation adjustment

    25     (498 )   2,710  

Unrealized gain (loss) on investments

    475     (457 )    

Defined benefit pension obligation

    (567 )        
               

Comprehensive loss

  $ (35,515 ) $ (104,174 ) $ (69,332 )
               
               

   

The accompanying notes are an integral part of these consolidated financial statements.

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Accuray Incorporated

Consolidated Statement of Stockholders' Equity

(in thousands, except share amounts)

 
  Common Stock    
  Accumulated
Other
Comprehensive
Income (Loss)
   
   
   
   
 
 
  Additional
Paid-in
Capital
  Accumulated
Deficit
  Total
Stockholders'
Equity
  Non-
controlling
Interest
  Total
Equity
 
 
  Shares   Amount  

Balance at June 30, 2011

    70,059,819   $ 70   $ 373,963   $ 127   $ (144,385 ) $ 229,775   $ 10,552   $ 240,327  
                                   

Exercise of stock options, net

    746,441     1     1,865             1,866         1,866  

Issuance of common stock under employee stock purchase plan

    755,532     1     2,580             2,581         2,581  

Issuance of restricted stock

    302,476                              

Share-based compensation

            7,546             7,546         7,546  

Embedded conversion feature on Convertible Note

            23,189             23,189         23,189  

Change in non-controlling interest in CPAC

                            4,101     4,101  

Net loss

                    (72,042 )   (72,042 )   (6,411 )   (78,453 )

Cumulative translation adjustment

                2,710         2,710         2,710  
                                   

Balance at June 30, 2012

    71,864,268   $ 72   $ 409,143   $ 2,837   $ (216,427 ) $ 195,625   $ 8,242   $ 203,867  
                                   
                                   

Exercise of stock options, net

    1,514,591     2     4,199             4,201         4,201  

Issuance of common stock under employee stock purchase plan

    663,986     1     3,256             3,257         3,257  

Issuance of restricted stock

    544,386                              

Share-based compensation

            8,236             8,236         8,236  

Deconsolidation of CPAC

            (310 )           (310 )   5,047     4,737  

Net loss

                    (103,219 )   (103,219 )   (13,289 )   (116,508 )

Cumulative translation adjustment

                (498 )       (498 )       (498 )

Unrealized loss on investments, net of tax

                (457 )         (457 )         (457 )
                                   

Balance at June 30, 2013

    74,587,231   $ 75   $ 424,524   $ 1,882   $ (319,646 ) $ 106,835   $   $ 106,835  
                                   
                                   

Exercise of stock options, net

    1,061,513     1     5,311             5,312         5,312  

Issuance of restricted stock

    913,070     1                 1         1  

Issuance of common stock under employee stock purchase plan

    650,315         3,536             3,536         3,536  

Share-based compensation

            11,038             11,038         11,038  

Embedded conversion feature on Convertible Note (Note 13)

            7,844             7,844         7,844  

Unamortized Convertible Senior Note issuance costs reclassified to equity

            (243 )           (243 )       (243 )

Tax withholding upon vesting of restricted stock awards

    (33,764 )       (260 )           (260 )       (260 )

Net loss

                    (35,448 )   (35,448 )       (35,448 )

Cumulative translation adjustment

                25         25         25  

Unrealized gain on investments, net of tax

                475         475         475  

Defined benefit pension obligation

                (567 )       (567 )       (567 )
                                   

Balance at June 30, 2014

    77,178,365   $ 77   $ 451,750   $ 1,815   $ (355,094 ) $ 98,548   $   $ 98,548  
                                   
                                   

   

The accompanying notes are an integral part of these consolidated financial statements.

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Accuray Incorporated

Consolidated Statements of Cash Flows

(in thousands)

 
  Years ended June 30,  
 
  2014   2013   2012  

Cash Flows From Operating Activities

                   

Loss from continuing operations

  $ (35,448 ) $ (97,361 ) $ (71,350 )

Loss from discontinued operations

        (19,147 )   (7,103 )

Adjustments to reconcile net loss to net cash provided by (used in) operating activities:

                   

Depreciation and amortization

    20,564     25,564     32,592  

Impairment of indefinite lived intangible asset

        12,200      

Share-based compensation

    11,313     8,216     8,458  

Amortization of debt issuance costs

    1,408     784     363  

Accretion/(amortization) of investment premiums/discounts

    1,584     295      

Accretion of interest on long-term debt

    5,105     4,302     3,596  

Provision for bad debt

    (707 )   787     1,392  

Provision for write-down of inventories

    2,836     5,255     2,129  

Loss on disposal of property and equipment

    666     1,013     296  

Gain on previously held equity interest in Morphormics

        (662 )    

Loss from deconsolidation of a variable interest entity

        3,442      

Provision for deferred income taxes

    92     947     495  

Changes in assets and liabilities:

                   

Restricted cash

    (163 )   (1,163 )   1,605  

Accounts receivable

    (14,786 )   10,858     (9,162 )

Inventories

    (8,341 )   (5,147 )   11,927  

Prepaid expenses and other assets

    (5,241 )   4,382     2,523  

Deferred cost of revenue

    (4,875 )   (4,005 )   2,080  

Accounts payable

    (1,057 )   (1,140 )   (21,425 )

Accrued liabilities

    21,696     (18,525 )   (10,538 )

Customer advances

    1,744     (659 )   (7,044 )

Deferred revenue

    3,956     3,587     20,887  
               

Net cash provided by (used in) operating activities

    346     (66,177 )   (38,279 )

Cash Flows From Investing Activities

                   

Purchases of property and equipment, net

    (11,931 )   (15,126 )   (10,769 )

Purchases of intangible assets

        (232 )    

Purchases of investments

    (44,155 )   (102,403 )    

Sales and maturities of investments

    64,578          

Acquisition of businesses, net of cash acquired

        (3,861 )   (1,384 )
               

Net cash provided by (used in) investing activities

    8,492     (121,622 )   (12,153 )

Cash Flows From Financing Activities

                   

Proceeds from issuance of common stock

    9,054     7,455     4,449  

Payments made to convertible note holders

    (417 )        

Taxes paid related to net share settlement of equity awards

    (260 )        

Proceeds from debt, net of costs

        110,462     96,100  
               

Net cash provided by financing activities

    8,377     117,917     100,549  

Effect of exchange rate changes on cash and cash equivalents

    1,818     (309 )   (2,519 )
               

Net increase (decrease) in cash and cash equivalent

    19,033     (70,191 )   47,598  

Cash and cash equivalents at beginning of period

    73,313     143,504     95,906  
               

Cash and cash equivalents at end of period

  $ 92,346   $ 73,313   $ 143,504  
               
               

Supplemental Disclosure of Cash Flow Information

                   

Cash paid for income taxes

  $ 2,499   $ 2,000   $ 1,198  

Cash paid for interest

  $ 8,208   $ 3,750   $ 1,875  

Non-cash financing activity:

                   

Exchange of Convertible Notes (Note 13)

  $ 7,844   $   $  

Purchases of property and equipment recorded in accounts payable and accrued liabilities

  $ 1,142   $ 366   $ 389  

   

The accompanying notes are an integral part of these consolidated financial statements.

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Accuray Incorporated

Notes to Consolidated Financial Statements

1. Description of Business

Organization

        Accuray Incorporated (together with its subsidiaries, the "Company" or "Accuray") is incorporated in Delaware. The Company designs, develops and sells advanced radiosurgery and radiation therapy systems for the treatment of tumors throughout the body. The Company conducts its business worldwide. The Company has its headquarters in Sunnyvale, California, with additional locations worldwide.

2. Summary of Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

        The accompanying consolidated financial statements have been prepared in accordance with GAAP, pursuant to the rules and regulations of the Securities and Exchange Commission, or SEC. The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries and a variable interest entity, Compact Particle Acceleration Corporation, or CPAC until the deconsolidation of CPAC on December 21, 2012 (for further information, see Note 7, Investment in CPAC). All significant inter-company transactions and balances have been eliminated in consolidation.

Discontinued Operations

        As a result of the deconsolidation of CPAC, the results of operations of CPAC, including the loss on deconsolidation of CPAC and the losses attributable to the non-controlling interest recorded for the years ended June 30, 2013 and 2012 have been presented as discontinued operations.

Use of Estimates

        The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures at the date of the financial statements. Key estimates and assumptions made by the Company relate to revenue recognition, business combinations and assessment of recoverability of goodwill and intangible assets, valuation of inventories, share-based compensation expense, convertible notes, income taxes, allowance for doubtful accounts and loss contingencies. Actual results could differ materially from those estimates.

Foreign Currency

        The Company's international subsidiaries use their local currencies as their functional currencies. For those subsidiaries, assets and liabilities are translated at exchange rates in effect at the balance sheet date and income and expense accounts at the average exchange rate. Resulting translation adjustments are excluded from the determination of net income (loss) and are recorded in accumulated other comprehensive income (loss) as a separate component of stockholders' equity. Net foreign currency exchange transaction gains or losses are included as a component of other income (expense), net, in the Company's consolidated statements of operations and comprehensive loss.

Fair Value Measurements

        The carrying values of the Company's financial instruments including cash equivalents, restricted cash, accounts receivable and accounts payable are approximately equal to their respective fair values

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

due to the relatively short-term nature of these instruments. Also refer to Note 4, Financial Instruments, for further details.

Cash and Cash Equivalents

        The Company considers currency on hand, demand deposits, time deposits, and all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash and cash equivalents. Cash and cash equivalents are held in various financial institutions in the United States and internationally.

Investments

        The Company classifies all its investments as available-for-sale at the time of purchase since it is management's intent that these investments be available for current operations, and as such, includes these investments as short-term investments on its balance sheets. These investments consist of fixed-term deposits, commercial paper and investment-grade corporate debt securities with original maturities longer than three months. Short-term investments classified as available-for-sale are recorded at fair market value with the related unrealized gains and losses included in accumulated other comprehensive income (loss), a component of stockholders' equity. Realized gains and losses are recorded in the consolidated statements of operations and comprehensive loss based on specific identification.

Concentration of Credit Risk and Other Risks and Uncertainties

        The Company's cash and cash equivalents are mainly deposited with several major financial institutions. At times, deposits in these institutions exceed the amount of insurance provided on such deposits. The Company has not experienced any losses in such accounts and believes that it is not exposed to any significant risk on these balances. The Company has placed its investments with high-credit quality issuers. The Company does not invest an amount exceeding 5% of its combined cash, cash equivalents and investments in the securities of any one obligor or maker, except for obligations of the United States government, obligations of United States government agencies and money market accounts.

        There were no customers that represented 10% or more of total net revenue for the years ended June 30, 2014, 2013 and 2012. At June 30, 2014, one customer accounted for 13% of accounts receivable. At June 30, 2013, one customer accounted for 10% of accounts receivable.

        Accounts receivable are typically not collateralized. The Company performs ongoing credit evaluations of its customers and maintains reserves for potential credit losses. Accounts receivable are deemed past due in accordance with the contractual terms of the agreement. Accounts are charged against the allowance for doubtful accounts once collection efforts are unsuccessful. Historically, such losses have been within management's expectations.

        Single-source suppliers presently provide the Company with several components. In most cases, if a supplier was unable to deliver these components, the Company believes that it would be able to find other sources for these components subject to any regulatory qualifications, if required.

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

Restricted Cash

        Restricted cash primarily consists of certificates of deposit held as guarantees in connection with corporate leases as well as funds held as guarantees for Value-Added Tax, or VAT obligations in a foreign jurisdiction.

Inventories

        Inventories are stated at the lower of cost (on a first-in, first-out basis) or market value. Excess and obsolete inventories are written down based on historical sales and forecasted demand, as judged by management. The Company determines inventory and product costs, which include allocated production overheads, through use of standard costs, which approximate actual costs.

Revenue Recognition

        The Company's revenue is primarily derived from sales of CyberKnife and TomoTherapy Systems and services, which include post-contract customer support or PCS, installation services, training and other professional services. The Company records its revenues net of any value added or sales tax. In all sales arrangements, the Company recognizes revenues when there is persuasive evidence of an arrangement, the fee is fixed or determinable, collection of the fee is reasonably assured and delivery has occurred. Payments received in advance of system shipment are recorded as customer advances and are recognized as revenue or deferred revenue upon product shipment or installation. The Company assesses the probability of collection based on a number of factors, including past transaction history with the customer and the credit-worthiness of the customer. The Company generally does not request collateral from its customers. If the Company determines that collection is not probable, the Company will defer the fee and recognize revenue upon receipt of cash.

        The Company frequently enters into sales arrangements that contain multiple elements or deliverables. For sale arrangements that contain multiple elements, the Company allocates the arrangement consideration to each element based on the relative selling price method, whereby the relative selling price of each deliverable is determined using vendor specific objective evidence, or VSOE of fair value, if it exists. VSOE of fair value for each element is based on the Company's standard rates charged for the product or service when such product or service is sold separately or based upon the price established by the Company's pricing committee when that product or service is not yet being sold separately. When the Company is not able to establish VSOE for all deliverables in an arrangement with multiple elements, which may be due to the Company infrequently selling each element separately, not pricing products within a narrow range, or only having a limited sales history, the Company attempts to determine the selling price of each element based on third-party evidence of selling price, or TPE, as determined based on competitors' prices for similar deliverables when sold separately. When the Company is not able to establish selling price using VSOE or TPE, the Company uses its best estimate of selling price, or BESP, in its allocation of arrangement consideration. The objective of BESP is to determine the price at which the Company would transact a sale if the product or service were sold on a stand-alone basis. The Company determines BESP for a product or service by considering multiple factors including, but not limited to, pricing practices, internal costs, geographies and gross margin. The determination of BESP is made through consultation with the Company's pricing committee, taking into consideration its overall go-to-market pricing strategy.

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

        The Company has a limited number of software offerings which are not required to deliver its systems' essential functionality and can be sold separately. The Company accounts for the separate sale of its software products in accordance with the applicable guidance for software revenue recognition. The Company's multiple-element arrangements may also include software deliverables that are subject to the software revenue recognition guidance; and in these cases, the revenue for these multiple-element arrangements is allocated to the software deliverable and the non-software deliverables based on the relative selling prices of all of the deliverables in the arrangement using VSOE, TPE or BESP.

        The Company regularly reviews VSOE, TPE and BESP for all of its products and services. As the Company's go-to-market strategies and other factors change, the Company may modify its pricing practices in the future, which may impact the selling prices of systems and services as well as VSOE, TPE and BESP of systems and services. As a result, the Company's future revenue recognition for multiple element arrangements could differ materially from that recorded in the current period.

Product Revenue

        The majority of product revenue is generated from sales of CyberKnife and TomoTherapy systems. If the Company is responsible for installation, the Company recognizes revenue after installation and acceptance of the system. Otherwise, revenue is recognized upon delivery, assuming all other revenue recognition criteria are met.

        The Company could sell its systems with PCS contracts, installation services, training, and at times, professional services. PCS contracts provide planned and corrective maintenance services, software updates, bug fixes, as well as call-center support.

        The Company records revenues from sales of systems, product upgrades and accessories to distributors depending on the terms of the distribution agreement as well as terms and conditions executed for each sale, and once all revenue recognition criteria have been met.

        The Company's agreements with customers and distributors for system sales generally do not contain product return rights. Certain distributor agreements include parts inventory buy-back provisions upon distributorship termination. The Company accrues an inventory buy-back liability when and if such distributorship termination is expected and the liability can be estimated.

Service Revenue

        Service revenue is generated primarily from PCS (warranty period services and post warranty services), installation services, training, and professional services. PCS revenue is deferred and recognized over the service period. Installation service revenue is recognized concurrent with system revenue. Training revenues are recognized when services are performed, and professional service revenues that are not deemed essential to the functionality of the systems are recognized as such services are performed.

        Costs associated with service revenue are expensed when incurred, except when those costs are related to system upgrades where revenue recognition has been deferred. In those cases, the incremental costs are deferred and are recognized over the period of revenue recognition.

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

Deferred Revenue and Deferred Cost of Revenue

        Deferred revenue consists of deferred product revenue and deferred service revenue. Deferred product revenue arises from timing differences between the shipment of product and satisfaction of all revenue recognition criteria consistent with the Company's revenue recognition policy. Deferred service revenue results from the advance payment for services to be delivered over a period of time, usually one year. Deferred cost of revenue consists of the direct costs associated with the manufacturing of units and direct service costs for which the revenue has been deferred in accordance with the Company's revenue recognition policies. Deferred revenue and associated deferred cost of revenue expected to be realized within one year are classified as current liabilities and current assets, respectively.

Customer Advances

        Customer advances represent payments made by customers in advance of product shipment.

Property and Equipment

        Property and equipment are stated at cost and are depreciated using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are depreciated on a straight-line basis over the remaining term of the lease or the estimated useful life of the asset, whichever is shorter. Machinery and equipment are depreciated over five years. Furniture and fixtures are depreciated over four years. Computer and office equipment and computer software are depreciated over three years. Repairs and maintenance costs, which are not considered improvements and do not extend the useful life of the property and equipment, are expensed as incurred.

Software Capitalization Costs

        The Company capitalizes certain costs associated with obtaining or developing internal use software, including external direct costs of material and services. Software development costs relating to assets to be sold in the normal course of business are included in research and development and are expensed as incurred until technological feasibility is established. After technological feasibility is established, material software development costs are capitalized. The capitalized cost is then amortized on a straight-line basis over the estimated product life, or on the ratio of current revenues to total projected product revenue, whichever is greater. To date, the period between achieving technological feasibility, which the Company has defined as the establishment of a working model which typically occurs when the beta testing commences, and the general availability of such software has been short and software development costs qualifying for capitalization have been insignificant.

        Capitalized software costs are included in property, plant and equipment and amortized beginning when the software project is complete and the assets is ready for its intended use.

Impairment of Long-Lived Assets

        The Company reviews long-lived assets, including intangible assets, property and equipment, for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable using pretax undiscounted cash flows. Impairment, if any, is measured as the amount by which the carrying value of a long-lived asset exceeds its fair value.

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

Business Combinations

        The Company allocates the fair value of the purchase consideration of its acquisitions to the tangible assets, liabilities, and intangible assets acquired, including in-process research and development, or IPR&D, based on their estimated fair values. Goodwill represents the excess of acquisition cost over the fair value of tangible and identified intangible net assets of businesses acquired. Transaction costs and costs to restructure the acquired company are expensed as incurred. The operating results of the acquired company are reflected in the Company's consolidated financial statements after the closing date of the merger or acquisition.

Goodwill and Purchased Intangible Assets

        Goodwill is not amortized, but is evaluated for impairment on an annual basis and when impairment indicators are present. The Company has assessed that it has one operating segment and one reporting unit, and the consolidated net assets, including existing goodwill and other intangible assets, are considered to be the carrying value of the reporting unit. The Company estimates the fair value of the reporting unit based on the Company's closing stock price on the trading day closest to the annual review date multiplied by the outstanding shares on that date. If the carrying value of the reporting unit is in excess of its fair value, an impairment may exist, and the Company must perform the second step of the analysis, in which the implied fair value of the goodwill is compared to its carrying value to determine the impairment charge, if any. If the estimated fair value of the reporting unit exceeds the carrying value of the reporting unit, goodwill is not impaired and no further analysis is required. There was no impairment of goodwill identified in the fiscal years ended June 30, 2014, 2013 and 2012.

        Purchased intangible assets other than goodwill, including developed technology, backlog and distributor license, are amortized on a straight-line basis over their estimated useful lives unless their lives are determined to be indefinite. Purchased intangible assets are carried at cost, less accumulated amortization. Amortization is computed over the estimated useful lives of the respective assets which range from approximately one to six years.

        Acquisition-related expenses and restructuring costs are recognized separately from the business combination and are expensed as incurred.

Shipping and Handling

        The Company's billings for shipping and handling for product shipments to customers are included in cost of products. Shipping and handling costs incurred for inventory purchases are capitalized in inventory and expensed in cost of products.

Advertising Expenses

        The Company expenses the costs of advertising and promoting its products and services as incurred. Advertising expenses were approximately $0.6 million, $0.7 million and $0.5 million for the years ended June 30, 2014, 2013 and 2012, respectively.

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

Research and Development Costs

        Costs related to research, design and development of products are charged to research and development expense as incurred. These costs include direct salaries, benefits, and other headcount related costs for research and development personnel; costs for materials used in research and development activities; costs for outside services and allocated portions of facilities and other corporate costs. The Company has entered into research and clinical study arrangements with selected hospitals, cancer treatment centers, academic institutions and research institutions worldwide. These agreements support the Company's internal research and development capabilities.

Share-Based Compensation

        The Company issues stock-based compensation awards to employees and directors in the form of stock options, restricted stock units ("RSUs"), performance stock units ("PSUs"), market stock units ("MSUs") and employee stock purchase plan ("ESPP") awards (collectively, "awards").

        The Company measures and recognizes compensation expense for all stock-based awards based on the awards' fair value. Share-based compensation for RSUs and PSUs is measured based on the value of the Company's common stock on the grant date. The Company uses the Monte-Carlo simulation model to estimate the fair value of MSUs. Share-based compensation for employee stock options and ESPP awards are measured on the date of grant using a Black-Scholes option pricing model.

        Awards vest either on a graded schedule or in a lump sum. The Company determines the fair value of each award as a single award and recognizes the expense on a straight-line basis over the service period of the award, which is generally the vesting period. The exercise price of stock options granted is equal to the fair market value of the Company's common stock on the date of grant. Stock options expire ten years from the date of grant.

        Share-based compensation expense for stock options, RSUs, PSUs and the ESPP is based on awards ultimately expected to vest, and the expense is recorded net of estimated forfeitures. The Company recognizes expense for MSUs net of estimated forfeitures and does not adjust the expense for subsequent changes in the expected outcome of the market-based vesting conditions.

Loss Contingencies

        The Company is involved in various lawsuits, claims and proceedings that arise in the ordinary course of business. The Company records a provision for a liability when it believes that it is both probable that a liability has been incurred and the amount can be reasonably estimated. Significant judgment is required to determine both probability and the estimated amount. The Company reviews these provisions at least quarterly and adjusts these provisions to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and updated information.

Net Loss Per Common Share

        Basic and diluted net loss per share is computed by dividing net loss attributable to stockholders by the weighted average number of common shares outstanding during the year.

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Accuray Incorporated

Notes to Consolidated Financial Statements (Continued)

2. Summary of Significant Accounting Policies (Continued)

        A reconciliation of the numerator and denominator used in the calculation of basic and diluted net loss per share attributable to stockholders follows (in thousands):

 
  Years ended June 30,  
 
  2014   2013   2012  

Numerator:

                   

Loss from operations used in computing loss per share from continuing operations

  $ (35,448 ) $ (97,361 ) $ (71,350 )
               
               

Loss from discontinued operations used in computing loss per share from discontinued operations

      $ (5,858 ) $ (692 )
               
               

Net loss used in computing net loss per share

  $ (35,448 ) $ (103,219 ) $ (72,042 )