Michael Overdorf

CIK: 0001818522

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (62.5%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (37.5%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

ANNX

Annexon, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (8 total)

ANNX
Annexon, Inc.
Mar 2, 2026
Sale(S)
Direct
4.3K shares at avg. $5.42$24K
ANNX
Annexon, Inc.
Feb 19, 2026
Award(A)
Direct
62.5K shares-
ANNX
Annexon, Inc.
Feb 18, 2026
Sale(S)
Direct
6.2K shares at avg. $5.10$32K
ANNX
Annexon, Inc.
Jul 14, 2025
Sale(S)
Direct
853 shares at avg. $2.61$2K
ANNX
Annexon, Inc.
Feb 27, 2025
Award(A)
Stock Option (Right to Buy)
Direct
272.6K shares-
ANNX
Annexon, Inc.
Feb 18, 2025
Sale(S)
Direct
6.6K shares at avg. $2.95$20K
ANNX
Annexon, Inc.
Feb 13, 2025
Sale(S)
Direct
1.4K shares at avg. $2.99$4K
ANNX
Annexon, Inc.
Feb 27, 2024
Award(A)
Direct
45K shares-

		Type	Shares	Price		Ownership
Mar 2, 2026	ANNX Annexon, Inc.	Sale(S)	4,339	$5.42	$23,517	Direct
Feb 19, 2026	ANNX Annexon, Inc.	Award(A)	62,500	-	$0	Direct
Feb 18, 2026	ANNX Annexon, Inc.	Sale(S)	6,225	$5.10	$31,747	Direct
Jul 14, 2025	ANNX Annexon, Inc.	Sale(S)	853	$2.61	$2,226	Direct
Feb 27, 2025	ANNX Annexon, Inc.	Award(A) Stock Option (Right to Buy)	272,575	-	-	Direct
Feb 18, 2025	ANNX Annexon, Inc.	Sale(S)	6,618	$2.95	$19,523	Direct
Feb 13, 2025	ANNX Annexon, Inc.	Sale(S)	1,425	$2.99	$4,261	Direct
Feb 27, 2024	ANNX Annexon, Inc.	Award(A)	44,963	-	-	Direct

1-8 of 8 transactions

About Overdorf Michael

Overdorf Michael (SEC CIK 0001818522) files insider reports with the SEC as EVP & CHIEF BUSINESS OFFICER of Annexon, Inc. (ANNX).

Signal8 holds 7 ownership filings by Overdorf Michael, all Form 4s, filed between Feb 18, 2025 and Mar 4, 2026. Those filings report 8 transactions, from Feb 27, 2024 to Mar 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Overdorf Michael's filings is in BRISBANE, CA.

Recent filings by Overdorf Michael

Mar 2, 2026: Open-market sale of ANNX shares (Form 4, code S).
Feb 19, 2026: Grant or award of ANNX shares (Form 4, code A).
Feb 18, 2026: Open-market sale of ANNX shares (Form 4, code S).
Jul 14, 2025: Open-market sale of ANNX shares (Form 4, code S).
Feb 27, 2025: Grant or award of ANNX derivative securities (Form 4, code A).

Other insiders filing for Annexon, Inc. (ANNX)

Love Douglas, PRESIDENT AND CEO
Blumenkranz Mark S., Director
Waddill William D., Director
Satter Muneer A, Director
JONES WILLIAM A JR, Director
Cockroft Bettina M., Director

How to read Form 4 transaction codes