Annexon, Inc. — Director's Dealing 2021

Apr 2, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Annexon, Inc. (ANNX)
CIK: 0001528115
Period of Report: 2021-03-31

Reporting Person: Love Douglas (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-03-31	Common Stock	M	7102	$1.4096	Acquired	7102	Direct
2021-03-31	Common Stock	S	7102	$28.1077	Disposed	0	Direct
2021-04-01	Common Stock	M	500	$1.4096	Acquired	500	Direct
2021-04-01	Common Stock	S	200	$28.19	Disposed	300	Direct
2021-04-01	Common Stock	S	300	$28.01	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-03-31	Stock Option (Right to Buy)	$1.4096	M	7102	Disposed	2025-01-22	Common Stock (7102)	Direct
2021-04-01	Stock Option (Right to Buy)	$1.4096	M	500	Disposed	2025-01-22	Common Stock (500)	Direct

Footnotes

F1: The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan.

F2: This transaction was executed in multiple trades in prices ranging from $28.00 to $28.30, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

F3: The shares subject to the option vest are fully vested and exercisable.