Annexon (ANNX) director William Carson receives 65,000 stock options at $4.70

Rhea-AI Filing Summary

Annexon director William H. Carson received a grant of stock options covering 65,000 shares of Annexon common stock, with an exercise price of $4.70 per share. These options were awarded as compensation rather than bought in the open market.

The options vest and become fully exercisable as to 100% of the shares on the earlier of the first anniversary of June 11, 2026 or the next Annual Meeting following that date, as long as he continues serving as a director through vesting. The options expire on June 11, 2036, and following this grant he holds derivative rights over 65,000 shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Carson William H.

Role null

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	65,000	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 65,000 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Option grant size: 65,000 shares Exercise price: $4.70 per share Expiration date: June 11, 2036 +1 more

4 metrics

Option grant size 65,000 shares Stock Option (Right to Buy) granted to director

Exercise price $4.70 per share Conversion or exercise price of the stock option

Expiration date June 11, 2036 Option expiration for the 65,000-share grant

Post-transaction derivative holdings 65,000 shares Total shares underlying options held after grant

Key Terms

Stock Option (Right to Buy), Common Stock, Annual Meeting, continuous service

4 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

Common Stock financial

"underlying_security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Annual Meeting financial

"on the earlier of (i) the first anniversary of June 11, 2026 or (ii) the next Annual Meeting"

A company's annual meeting is a yearly gathering where owners (shareholders) and the board review performance, ask questions, and vote on key matters like electing directors, approving auditor choices, and sometimes setting pay or dividend policies. For investors it matters because decisions made and votes cast can change who runs the company, influence strategy and payouts, and affect the value or direction of their investment—similar to a homeowners’ meeting where rules and leaders that shape your property’s value are decided.

continuous service financial

"subject to Reporting Person's continuous service as a director until such vesting date"

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Carson William H.

(Last) (First) (Middle)

C/O ANNEXON, INC.

1400 SIERRA POINT PKWY, BLDG C, STE 200

(Street)

BRISBANE CALIFORNIA 94005

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Annexon, Inc. [ ANNX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$4.7	06/11/2026		A		65,000		(1)	06/11/2036	Common Stock	65,000	$0	65,000	D

Explanation of Responses:

1. The underlying shares subject to the option vest and become exercisable as to 100% of the total number of shares subject to the option on the earlier of (i) the first anniversary of June 11, 2026 or (ii) the next Annual Meeting following June 11, 2026, subject to Reporting Person's continuous service as a director until such vesting date.

	/s/ Jennifer Lew, Attorney-in-Fact	06/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Annexon (ANNX) director William H. Carson report in this Form 4?

He reported receiving a grant of stock options for 65,000 shares of Annexon common stock. The options are a compensation-related award, not an open-market purchase, giving him the right to buy shares at a fixed exercise price of $4.70.

What are the key terms of William H. Carson’s Annexon (ANNX) stock option grant?

The grant covers 65,000 shares of common stock at an exercise price of $4.70 per share, expiring on June 11, 2036. It is classified as a derivative security (stock option right to buy) awarded as a grant or other acquisition.

When do William H. Carson’s Annexon (ANNX) options vest and become exercisable?

The options vest and become exercisable for 100% of the 65,000 shares on the earlier of the first anniversary of June 11, 2026 or the next Annual Meeting after that date, subject to his continuous service as a director until vesting.

How many Annexon (ANNX) derivative shares does William H. Carson hold after this transaction?

Following the reported grant, he holds derivative rights over 65,000 shares of Annexon common stock. This reflects the full amount of the new stock option award, as shown in the post-transaction holdings field for the option security.

Was William H. Carson’s Annexon (ANNX) Form 4 transaction an open-market buy or sell?

No, the Form 4 shows a code A transaction, meaning a grant or award acquisition of stock options. It is a compensation-related award, not an open-market purchase or sale of Annexon common stock, and involves derivative options at a fixed exercise price.