Annexon (ANNX) grants director Jung Choi 65,000 stock options at $4.70

Rhea-AI Filing Summary

Annexon, Inc. director Jung Choi received a grant of stock options covering 65,000 shares of common stock at an exercise price of $4.70 per share. These options vest in full on the earlier of the first anniversary of June 11, 2026 or the next Annual Meeting following that date, subject to continued board service, and expire on June 11, 2036. Following this award, Choi holds stock options for 65,000 underlying shares directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Choi Jung

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 Jung Choi

Exercise price $4.70 per share Conversion or exercise price of granted stock options

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

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

Key Terms

Stock Option (Right to Buy), exercise price, vest and become exercisable, Annual Meeting

4 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

exercise price financial

"conversion_or_exercise_price: 4.7000"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vest and become exercisable financial

"The underlying shares subject to the option vest and become exercisable as to 100% of the total number"

Annual Meeting financial

"the next Annual Meeting following June 11, 2026, subject to Reporting Person's continuous service"

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.

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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^*

Choi Jung

(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) disclose in this Form 4 filing?

Annexon reported that director Jung Choi received a grant of stock options for 65,000 shares of common stock, with full vesting based on future service and governance milestones described in the award terms.

How many Annexon (ANNX) stock options were granted to Jung Choi?

Jung Choi was granted stock options covering 65,000 shares of Annexon common stock. These options give the right to buy that number of shares once they vest, subject to the award’s service and timing conditions.

What is the exercise price of Jung Choi’s Annexon (ANNX) stock options?

The stock options granted to Jung Choi have an exercise price of $4.70 per share. This means Choi can purchase Annexon common shares at $4.70 each once the options vest and remain exercisable until their expiration date.

When do Jung Choi’s Annexon (ANNX) stock options vest?

The options vest and become exercisable as to 100% of the shares on the earlier of the first anniversary of June 11, 2026 or the next Annual Meeting after that date, if Choi continues serving as a director through vesting.

When do the newly granted Annexon (ANNX) stock options expire?

The granted stock options expire on June 11, 2036. After that expiration date, any unexercised portion of the 65,000-share award will no longer be exercisable, so use of the grant must occur before that deadline.

How many Annexon (ANNX) options does Jung Choi hold after this grant?

Following this transaction, Jung Choi holds stock options for 65,000 underlying shares directly. This reflects the full size of the new award reported, with no additional derivative holdings shown in this particular filing excerpt.