Form 8-K

8-K — Annexon, Inc.

Accession: 0001193125-26-269479

Filed: 2026-06-12

Period: 2026-06-11

CIK: 0001528115

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Submission of Matters to a Vote of Security Holders

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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 11, 2026

ANNEXON, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-39402

27-5414423

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

1400 Sierra Point Parkway, Bldg C, Suite 200

Brisbane, California 94005

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (650) 822-5500

Not Applicable

(Former name or former address, if changed since last report)

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:

☐

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

☐

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

☐

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

☐

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

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

Title of each class

Trading

Symbol(s)

Name of each exchange

on which registered

Common Stock, par value $0.001 per share

ANNX

The Nasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07.

Submission of Matters to a Vote of Security Holders.

Annexon, Inc. (the “Company”) held its 2026 Annual Meeting of Stockholders (the “Annual Meeting”) on June 11, 2026. The following is a brief description of each matter voted upon at the Annual Meeting and the number of votes cast for, withheld or against, the number of abstentions and the number of broker non-votes with respect to each matter, as applicable.

The election of two nominees to serve as Class III directors for a three-year term to expire at the 2029 annual meeting of stockholders or until such earlier time as their respective successors are duly elected and qualified. The following two Class III directors were elected by the votes indicated.

For

Withheld

Broker Non-Votes

Bettina M. Cockroft, M.D.

101,594,745

22,807,949

17,818,815

Douglas Love, Esq.

107,491,451

16,911,243

17,818,815

The ratification of the selection by the Audit Committee of our Board of Directors of KPMG LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. The selection was ratified by the votes indicated.

For

Against

Abstain

Broker Non-Votes

142,016,122

185,546

19,841

—

The approval, on an advisory (non-binding) basis, of the compensation of the Company’s named executive officers.

For

Against

Abstain

Broker Non-Votes

122,347,513

1,986,387

68,794

17,818,815

The approval of an amendment to the Company’s amended and restated certificate of incorporation to increase the number of authorized shares of common stock from 300,000,000 to 500,000,000.

For

Against

Abstain

Broker Non-Votes

129,051,256

4,374,799

8,795,454

—

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.

Dated: June 12, 2026

Annexon, Inc.

By:

/s/ Jennifer Lew

Jennifer Lew

Executive Vice President and Chief Financial Officer

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Entity Address, Address Line One

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Entity Address, Address Line Two

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