Michael Overdorf - 19 Feb 2026 Form 4 Insider Report for Annexon, Inc. (ANNX)

Role
EVP & CHIEF BUSINESS OFFICER
Signature
/s/ Jennifer Lew, Attorney-in-Fact
Issuer symbol
ANNX
Transactions as of
19 Feb 2026
Net transactions value
$0
Form type
4
Filing time
23 Feb 2026, 19:08:42 UTC
Previous filing
20 Feb 2026
Next filing
04 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Overdorf Michael EVP & CHIEF BUSINESS OFFICER C/O ANNEXON, INC, 1400 SIERRA POINT PKWY, BLDG C, STE 200, BRISBANE /s/ Jennifer Lew, Attorney-in-Fact 23 Feb 2026 0001818522

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ANNX Common Stock Award $0 +62,500 +50% $0.000000 186,964 19 Feb 2026 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ANNX Stock Option (Right to Buy) Award $0 +250,000 $0.000000 250,000 19 Feb 2026 Common Stock 250,000 $5.10 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Constitute restricted stock units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Common Stock for each RSU upon vesting. 1/3rd of the RSUs vest annually on February 19 of each year, with the first 1/3rd vesting on February 19, 2027, subject to Reporting Person's continuous service with the Issuer as of each such vesting date.
F2 1/48th of the shares subject to the option vest on each monthly anniversary measured from February 19, 2026 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, subject to Reporting Person's continuous service with the Issuer as of each such vesting date.