Annexon holder Thomas Wiggans plans 2,000-share sale

Annexon’s shareholder Thomas Wiggans filed a notice covering the proposed sale of 2,000 shares of common stock through Fidelity Brokerage Services LLC on 07/15/2026 on NASDAQ, with an indicated value of 12,630.01.

Rhea-AI Filing Summary

Annexon’s shareholder Thomas Wiggans filed a notice covering the proposed sale of 2,000 shares of common stock through Fidelity Brokerage Services LLC on 07/15/2026 on NASDAQ, with an indicated value of 12,630.01.

A related table ties these 2,000 common shares to a “Stock Option Exercise” from the issuer on 07/15/2026, with cash noted as consideration. Over the prior three months, Wiggans reported selling 1,000 common shares on 07/14/2026 for a value of 5,605.00.

Key Figures

Planned shares to be sold: 2,000 shares Value of planned sale: 12,630.01 Past 3-month shares sold: 1,000 shares +2 more

5 metrics

Planned shares to be sold 2,000 shares Common shares listed under Securities Information and Securities To Be Sold

Value of planned sale 12,630.01 Amount shown alongside 2,000 common shares for NASDAQ sale on 07/15/2026

Past 3-month shares sold 1,000 shares Common shares sold on 07/14/2026 under Securities Sold During The Past 3 Months

Value of past 3-month sale 5,605.00 Amount reported for 1,000 common shares sold on 07/14/2026

Planned sale date 07/15/2026 Date associated with 2,000 common shares to be sold on NASDAQ

Key Terms

Securities To Be Sold, Securities Sold During The Past 3 Months, Stock Option Exercise, Fidelity Brokerage Services LLC, +1 more

5 terms

Securities To Be Sold regulatory

"144: Securities To Be Sold Common | 07/15/2026 | Stock Option Exercise"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months Thomas Wiggans"

Stock Option Exercise financial

"Common | 07/15/2026 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Fidelity Brokerage Services LLC financial

"Common | Fidelity Brokerage Services LLC 900 Salem Street"

NASDAQ financial

"163842538 | 07/15/2026 | NASDAQ 144: Securities To Be Sold"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

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

What does the Annexon (ANNX) Form 144 filing by Thomas Wiggans disclose?

The filing shows Thomas Wiggans intends to sell 2,000 Annexon common shares through Fidelity Brokerage Services LLC on 07/15/2026 on NASDAQ, with an indicated value of 12,630.01. It also lists a recent sale of 1,000 shares.

How many Annexon (ANNX) shares are covered by the planned sale?

The notice covers a planned sale of 2,000 Annexon common shares. These shares are to be sold through Fidelity Brokerage Services LLC on NASDAQ, with the transaction dated 07/15/2026 and an associated value of 12,630.01.

What prior Annexon (ANNX) share sales did Thomas Wiggans report?

The filing lists a prior transaction where Thomas Wiggans sold 1,000 Annexon common shares on 07/14/2026 with a reported value of 5,605.00. This appears under the section for securities sold during the past 3 months.

How were the Annexon (ANNX) shares in the Form 144 connected to a stock option exercise?

A table links 2,000 common shares to a “Stock Option Exercise” from the issuer dated 07/15/2026, with Cash noted. This indicates the proposed sale involves shares associated with that stock option transaction.

On which market will the Annexon (ANNX) shares in this Form 144 be sold?

The proposed sale of 2,000 Annexon common shares is listed for execution on NASDAQ. Fidelity Brokerage Services LLC is named in the securities information section as the brokerage involved in the contemplated transaction.

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

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Accepted by SEC EDGAR 07/15/2026 - 04:19 PM EDT 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	0001208907
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	WIGGANS THOMAS G
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	Former Director

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	2000	12630.01	163842538	07/15/2026	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	07/15/2026	Stock Option Exercise	Issuer			2000	07/15/2026	Cash

* 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
Thomas Wiggans 1400 Sierra Point Parkway Bldg C, Suite 200 Brisbane CA 94005	Common	07/14/2026	1000	5605.00

144: Remarks and Signature

Remarks
Date of Notice	07/15/2026
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 Thomas Wiggans
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)