ANNX files Rule 144 notice for Common shares

ANNX submitted a Rule 144 notice relating to proposed sales of its Common stock.

Rhea-AI Filing Summary

ANNX submitted a Rule 144 notice relating to proposed sales of its Common stock. The filing lists 4,339 Common shares tied to restricted stock vesting dated 02/27/2026 and discloses that Michael Overdorf sold 6,225 Common shares on 02/18/2026 with a reported amount of $31,764.30.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does ANNX's Form 144 disclose?

It discloses proposed sales of Common stock tied to vesting and a recent sale by an individual. The filing lists 4,339 shares from restricted stock vesting on 02/27/2026 and a sale of 6,225 shares on 02/18/2026.

Who sold shares according to the ANNX filing?

The filing shows a sale by Michael Overdorf of Common shares. It reports Mr. Overdorf sold 6,225 shares on 02/18/2026 with a reported figure of $31,764.30.

How many shares vested under ANNX's restricted stock entry?

The filing lists 4,339 Common shares tied to restricted stock vesting. That vesting event is dated 02/27/2026 and is labeled as Compensation.

Is the ANNX filing tied to an exchange?

Yes; the filing references trading on NASDAQ. The securities line includes NASDAQ and a date of 03/02/2026 alongside the share entries.

What monetary amount is shown in the ANNX Form 144?

The filing reports $31,764.30 in connection with a sale by Michael Overdorf. That amount appears beside the 02/18/2026 sale of 6,225 shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/02/2026 - 04:16 PM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001818522
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Annexon, Inc.
SEC File Number	001-39402
Address of Issuer	1400 SIERRA POINT PARKWAY BLDG C, SUITE 200 BRISBANE CALIFORNIA 94005
Phone	(650) 822-5500
Name of Person for Whose Account the Securities are To Be Sold	Overdorf Michael
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	4339	23529.96	119632804	03/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/27/2026	Restricted Stock Vesting	Issuer			4339	02/27/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Michael Overdorf 1400 Sierra Point Parkway Bldg C, Suite 200 Brisbane CA 94005	Common	02/18/2026	6225	31764.30

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	03/02/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Michael Overdorf
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)