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): July 26, 2016

LINEAR TECHNOLOGY CORPORATION

(Exact name of registrant as specified in its charter)

1630 McCarthy Boulevard

Milpitas, California 95035

(Address of principal executive offices including zip code)

(408) 432-1900

(Registrant’s telephone number, including area code)

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):

On July 26, 2016, Linear Technology Corporation, a Delaware corporation (“Linear Technology”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Analog Devices, Inc., a Massachusetts corporation (“Analog Devices”), and Tahoe Acquisition Corp., a Delaware corporation and wholly owned subsidiary of Analog (“Merger Sub”) (the “Merger”).

The joint press release of Linear Technology and Analog Devices announcing the Merger Agreement and Merger is attached as Exhibit 99.1 to this Current Report on Form 8-K, and is incorporated herein by reference.

* * *

Important Additional Information Will be Filed With the SEC

In connection with the proposed transaction, Analog Devices and Linear Technology intend to file relevant information with the SEC, including a registration statement of Analog Devices on Form S-4 (the “registration statement”) that will include a prospectus of Analog Devices and a proxy statement of Linear Technology (the “proxy statement/prospectus”). Investors and security holders of Linear Technology are urged to carefully read the entire registration statement and proxy statement/prospectus and other relevant documents filed with the SEC when they become available, because they will contain important information about Analog Devices, Linear Technology and the proposed transaction. A definitive proxy statement/prospectus will be sent to Linear Technology’s stockholders. The registration statement, proxy statement/prospectus and other documents filed by Analog Devices with the SEC may be obtained free of charge at Analog Devices’ website at www.analog.com or at the SEC’s website at www.sec.gov. These documents may also be obtained free of charge from Analog Devices by requesting them by mail at Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, Attention: Investor Relations, or by telephone at (781) 461-3282. The documents filed by Linear Technology with the SEC may be obtained free of charge at Linear Technology’s website at www.linear.com or at the SEC’s website at www.sec.gov. These documents may also be obtained free of charge from Linear Technology by requesting them by mail at Linear Technology Corporation, 1630 McCarthy Blvd., Milpitas, CA, 95035-7417, Attention: Investor Relations, or by telephone at (408) 432-2407.

Participants in the Solicitation

Linear Technology, Analog Devices and certain of their directors, executive officers and employees may be deemed participants in the solicitation of proxies from Linear Technology stockholders in connection with the proposed transaction. Information regarding the persons who may be deemed to be participants in the solicitation of Linear Technology stockholders in connection with the proposed transaction, including a description of their direct or indirect interests, by security holdings or otherwise, will be set forth in the proxy statement/prospectus when it is filed with the SEC. Information about the directors and executive officers of Analog Devices and their ownership of Analog Devices common stock is set forth in the definitive proxy statement for the Analog Devices’ 2016 annual meeting of shareholders, as previously filed with the SEC on January 28, 2016. Information about the directors and executive officers of Linear Technology and their ownership of Linear Technology common stock is set forth in the definitive proxy statement for Linear Technology’s 2015 annual meeting of stockholders, as previously filed with the SEC on September 17, 2015. Free copies of these documents may be obtained as described in the paragraph above.

Non-Solicitation

This communication shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

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: July 26, 2016

EXHIBIT INDEX