Michael Overdorf - Feb 11, 2022 Form 4 Insider Report for Annexon, Inc. (ANNX)

Role: EVP & Chief Business Officer
Signature: /s/ Jennifer Lew, as Attorney-in-Fact for Michael Overdorf
Stock symbol: ANNX
Transactions as of: Feb 11, 2022
Transactions value $: $0
Form type: 4
Date filed: 2/15/2022, 03:38 PM
Next filing: Jul 13, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ANNX	Common Stock	Award	$0	+12.5K		$0.00	12.5K	Feb 11, 2022	Direct	F1, F2

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	+100K		$0.00	100K	Feb 11, 2022	Common Stock	100K	$6.94	Direct	F3

* 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 11 of each year, with the first 1/3rd vesting on February 11, 2023.
F2	Includes 12,500 RSUs.
F3	1/48th of the shares subject to the option vest on each monthly anniversary measured from February 11, 2022 (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.