8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 8, 2009

PLEXUS CORP.

(Exact name of registrant as specified in its charter)

Wisconsin	001-14423	39-1344447
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

55 Jewelers Park Drive, Neenah, Wisconsin	54957-0156
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code:
(920) 722-3451

     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure.

     On June 8, 2009, Plexus Corp. (the “Company”) issued a press release announcing that it will be hosting a meeting on June 11, 2009, in New York, New York to update investors on the Company and its strategy, growth initiatives and financial performance. The meeting will be webcast as described in the press release. In the press release the Company also announced that it will be re-affirming its previously announced guidance for the fiscal third quarter during the meeting.

     The Company’s press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.	Description
99.1	Press Release, dated June 8, 2009.

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SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: June 9, 2009	PLEXUS CORP. (Registrant)
	By:	/s/ Ginger M. Jones
		Ginger M. Jones
		Chief Financial Officer

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EX-99.1

Exhibit 99.1

FOR IMMEDIATE RELEASE

PLEXUS HOSTS INVESTOR DAY
Will Confirm Fiscal Third Quarter Guidance

NEENAH, WI, June 8, 2009 — Plexus Corp. (NASDAQ: PLXS) is hosting a meeting on June 11, 2009 in New York, NY to update investors on the Company and its strategy, growth initiatives and financial performance. The program will include presentations from Dean Foate, President and Chief Executive Officer, as well as other members of the Company’s senior management team. The event, which runs from 10:00 a.m. to 2:30 p.m. Eastern Daylight Time (EDT), is being held at the NASDAQ Marketsite in New York, NY.

During the meeting, Plexus will confirm its prior fiscal 3^rd quarter guidance of revenue from $355 to $385 million and EPS, excluding any restructuring or similar charges, in the range of $0.18 to $0.25, including approximately $0.04 per share of stock-based compensation expense.

Individuals who are not able to attend the meeting in person will be able to view a webcast at http://tinyurl.com/ortybk. A replay of the presentations will be available at the Company’s website: http://www.plexus.com/news.php until 11:59 p.m. CDT on July 11, 2009.

For further information, please contact:
Ginger Jones, Vice President, Chief Financial Officer
920-751-5487 or ginger.jones@plexus.com

About Plexus Corp. — The Product Realization Company

Plexus (www.plexus.com) is an award-winning participant in the Electronics Manufacturing Services (EMS) industry, providing product design, supply chain and materials management, manufacturing, test, fulfillment and aftermarket solutions to branded product companies in the Wireline/Networking, Wireless Infrastructure, Medical, Industrial/Commercial and Defense/Security/Aerospace market sectors.

The Company’s unique Focused Factory manufacturing model and global supply chain solutions are strategically enhanced by value-added product design and engineering services. Plexus specializes in mid-to-low-volume, higher-mix customer programs that require flexibility, scalability, technology and quality.

Plexus provides award-winning customer service to more than 100 branded product companies in North America, Europe and Asia.

Safe Harbor and Fair Disclosure Statement

The statements contained in this release which are guidance or which are not historical facts (such as statements in the future tense and statements including “believe,” “expect,” “intend,” “plan,” “anticipate,” “goal,” “target” and similar terms and concepts), including all discussions of periods which are not yet completed, are forward-looking statements that involve risks and uncertainties. Risks and uncertainties affecting our business and our ability to grow and prosper in the future include, but are not limited to: the economic performance of the electronics, technology and defense industries; the risk of customer delays, changes or cancellations in both ongoing and new programs; the poor visibility of future orders, particularly in view of current economic conditions; the effects of the volume of revenue from certain sectors or programs on our margins in particular periods; our ability to secure new customers and maintain our current customer base and deliver product on a timely basis; the risks relative to new customers and new program wins, including a new confidential customer in the Industrial/Commercial sector, which risks include customer delays, start-up costs, our potential inability to execute and lack of a track record of order volume and timing; the risks of concentration of work for certain customers; the weakness of the global economy and the continuing instability of the global financial markets and banking system, including the potential inability on our part or that of our customers or suppliers to access cash investments and credit facilities; material cost fluctuations and the adequate availability of components and related parts for production; the effect of changes in average selling prices; the effect of start-up costs of new programs and facilities, including our recent and planned expansions, such as our new facility in Oradea, Romania; the adequacy of restructuring and similar charges as

compared to actual expenses, including the recently completed closure of our Ayer, Massachusetts facility and workforce reductions at our Juarez, Mexico facility and other North American facilities; the degree of success and the costs of efforts to improve the financial performance of our Mexican operations; possible unexpected costs and operating disruption in transitioning programs; the potential effect of world events (such as changes in oil prices, terrorism, epidemics, drug cartel-related violence in Juarez, Mexico and war in the Middle East); the impact of increased competition; and other risks detailed in the Company’s Securities and Exchange Commission filings (particularly in Part II, Item 1A of our quarterly report on Form 10-Q for the quarter ended April 4, 2009).

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