DEFA14A

DEFA14A 1 vktx-2026-04-01-defa14a_.htm DEFA14A DEFA14A

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

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

Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

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

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

VIKING THERAPEUTICS, INC.

(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

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☐ Fee paid previously with preliminary materials

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Important Notice of Availability of Proxy Materials for the Stockholder Meeting of VIKING THERAPEUTICS, INC. To Be Held On: May 19, 2026, at 8:00 a.m. Pacific Time virtually at edge.media-server.com/mmc/p/cimrmdwx (password: viking2026) COMPANY NUMBER ACCOUNT NUMBER CONTROL NUMBER 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 05/05/26. Please visit www.astproxyportal.com/ast/20061/, where the following materials are available for view: • Notice of Annual Meeting of Stockholders • Proxy Statement • Form of Electronic Proxy Card • Annual Report on Form 10-K TO REQUEST MATERIAL: TELEPHONE: 1-888-Proxy-NA (1-888-776-9962) or +1-201-299-6210 (worldwide) E-MAIL: help@equiniti.com WEBSITE: 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 meeting date. VIRTUALLY AT THE MEETING: The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet, please visit edge.media-server.com/mmc/p/cimrmdwx (password: viking2026) 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. MAIL: You may request a card by following the instructions above. 1. ELECTION OF DIRECTOR NOMINEES FOR CLASS II (term to expire 2. TO RATIFY THE SELECTION OF CBIZ CPAS P.C. AS THE COMPANY'S in 2029): INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR ITS FISCAL YEAR ENDING DECEMBER 31, 2026. NOMINEES: J. Matthew Singleton S. Kathryn Rouan, Ph.D. 3. TO APPROVE, ON AN ADVISORY BASIS, THE COMPENSATION OF THE COMPANY’S NAMED EXECUTIVE OFFICERS. THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR ALL NOMINEES" IN PROPOSAL 1 AND "FOR" PROPOSALS 2 AND 3. Please note that you cannot use this notice to vote by mail.

SEC Form DEFA14A filed by Viking Therapeutics Inc.