ANNX insider files Form 144 to sell 853 shares ($2.2K) – immaterial

Annexon, Inc. (NASDAQ: ANNX) filed a Form 144 disclosing a proposed insider sale of up to 853 common shares, valued at approximately $2,226.42.

Rhea-AI Filing Summary

Annexon, Inc. (NASDAQ: ANNX) filed a Form 144 disclosing a proposed insider sale of up to 853 common shares, valued at approximately $2,226.42. The shares, representing roughly 0.0008% of the 109.7 million shares outstanding, were acquired through restricted-stock vesting on 07 Jul 2025 and are slated for sale on or about 14 Jul 2025 via Fidelity Brokerage Services LLC on the NASDAQ exchange.

No other sales by the filer in the past three months were reported, and the filing contains the standard affirmation that the seller possesses no undisclosed material adverse information. Filer name and relationship to the issuer were not provided, suggesting an administrative notice rather than a significant ownership change.

Given the minimal share count and dollar value, this transaction is considered routine and unlikely to affect Annexon’s capital structure, liquidity, or share price. Investors typically view such small-scale Form 144 filings as non-material disclosures.

Insights

Senior Securities Analyst

TL;DR: 853-share Form 144 sale is negligible; no impact on ANNX investment thesis.

The filing covers less than one-thousandth of a percent of Annexon’s outstanding shares, valued at just over $2,200. There is no indication of broader insider selling pressure or strategic shift. Absence of the filer’s identity limits insight into motive, but the tiny size and origin from routine RSU vesting point to standard personal liquidity. I classify the disclosure as neutral and not impactful for equity valuation or trading dynamics.

FAQ

What does Annexon’s (ANNX) latest Form 144 disclose?

It reveals an insider’s intent to sell 853 common shares valued at about $2,226.42.

How large is the planned sale relative to Annexon’s shares outstanding?

The 853 shares equal roughly 0.0008% of the company’s 109,714,404 shares outstanding.

When is the approximate sale date for the ANNX shares?

The shares are expected to be sold on or around 14 July 2025.

Which broker is handling the ANNX insider transaction?

The sale will be executed through Fidelity Brokerage Services LLC.

Were any other Annexon insider sales reported in the past three months?

No. The filer indicated "Nothing to Report" for prior three-month sales.

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

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Accepted by SEC EDGAR 07/14/2025 - 03:26 PM 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	853	2226.42	109714404	07/14/2025	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	07/11/2025	Restricted Stock Vesting	Issuer			853	07/11/2025	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

Nothing to Report

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	07/14/2025
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/Wade Moss, 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)