UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934
(Amendment No.     )

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¨ Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

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¨ Soliciting Material under §240.14a-12

FireEye, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting To Be Held on June 11, 2021 FIREEYE, INC. Annual Meeting of Stockholders To Be Held On: Friday, June 11, 2021 at 9:00 a.m. Pacific Time virtually at https://web.lumiagm.com/287951276 (password: fireeye2021) This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. If you want to receive a paper or e-mail copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. To facilitate timely delivery, please make the request as instructed below before June 1, 2021. Please visit http://www.astproxyportal.com/ast/18620, where the following materials are available for viewing: Notice of Annual Meeting of Stockholders Proxy Statement Form of Electronic Proxy Card Annual Report on Form 10-K TO OBTAINTELEPHONE: 888-Proxy-NA (888-776-9962) or 718-921-8562 (for international callers) PROXY MATERIALS:E-MAIL: info@astfinancial.com WEBSITE: https://us.astfinancial.com/OnlineProxyVoting/ProxyVoting/RequestMaterials TO VOTE:ONLINE: To access your online proxy card, please visit www.voteproxy.com and follow the on-screen instructions or scan the QR code with your smartphone. You may enter your voting instructions at www.voteproxy.com up until 11:59 p.m. Eastern Time the day before the cut-off or meeting date. VIRTUALLY AT THE MEETING: You may attend the meeting via the Internet and vote during the meeting. Please visit https://web.lumiagm.com/287951276 (password: fireeye2021) and be sure to have your control number available. TELEPHONE: To vote by telephone, please visit www.voteproxy.com to view the materials and to obtain the toll free number to call. You may vote by telephone until 11:59 p.m. Eastern Time the day before the meeting date. MAIL: You may request a physical proxy card by following the instructions above. Proposals to be voted on at the Annual Meeting are listed below along with the Board of Directors' recommendations. The Board of Directors recommends a vote "FOR” all nominees on Proposal 1, “FOR” Proposal 2 and “FOR” Proposal 3: To elect three Class II directors: NOMINEES: Sara C. Andrews Adrian McDermott Robert E. Switz To ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2021. Advisory vote to approve named executive officer compensation. Note: The stockholders may transact such other business as may properly come before the Annual Meeting or any adjournments or postponements thereof. Please note that you cannot use this notice to vote by mail.