Brian G. Atwood

CIK: 0001266567

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)2 (15.4%)

Derivative conversions

Awards (A)9 (69.2%)

Compensation grants

Other (G, F, J, C, D, …)2 (15.4%)

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

Companies & Roles (1)

CERO

CERO THERAPEUTICS HOLDINGS, INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (13 total)

CERO
CERO THERAPEUTICS HOLDINGS, INC.
Jan 7, 2026
Award(A)
Stock Option (Right to Buy)
Direct
1.6M shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
May 30, 2025
Award(A)
Stock Option (Right to Buy)
Direct
122.5K shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Mar 31, 2025
Exercise(M)
Indirect
294.5K shares at avg. $0.00$29.446
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Mar 4, 2025
Award(A)
Stock Option (Right to Buy)
Direct
14.9K shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Feb 24, 2025
Award(A)
Stock Option (Right to Buy)
Direct
254K shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Feb 7, 2025
Award(A)
Pre-Funded Warrant
Indirect
204.1K shares at avg. $0.00-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Feb 7, 2025
Award(A)
Warrant to Purchase Shares of Common Stock
Direct
306.1K shares at avg. $1.96-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Feb 7, 2025
Award(A)
Warrant to Purchase Shares of Common Stock
Indirect
204.1K shares at avg. $1.96-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Feb 7, 2025
Award(A)
Pre-Funded Warrant
Direct
306.1K shares at avg. $0.00-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Dec 2, 2024
Award(A)
Stock Option (Right to Buy)
Direct
254K shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Sep 30, 2024
Disposition(D)
Stock Option (Right to Buy)
Direct
13.9K shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Sep 30, 2024
Disposition(D)
Stock Option (Right to Buy)
Direct
1.3M shares-
CERO
CERO THERAPEUTICS HOLDINGS, INC.
Sep 25, 2024
Exercise(M)
Indirect
19.4M shares-

		Type	Shares	Price		Ownership
Jan 7, 2026	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Stock Option (Right to Buy)	1,612,099	-	-	Direct
May 30, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Stock Option (Right to Buy)	122,549	-	-	Direct
Mar 31, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Exercise(M)	294,460	$0.00	$29	Indirect
Mar 4, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Stock Option (Right to Buy)	14,936	-	-	Direct
Feb 24, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Stock Option (Right to Buy)	254,000	-	-	Direct
Feb 7, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Pre-Funded Warrant	204,080	$0.00	-	Indirect
Feb 7, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Warrant to Purchase Shares of Common Stock	306,120	$1.96	-	Direct
Feb 7, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Warrant to Purchase Shares of Common Stock	204,080	$1.96	-	Indirect
Feb 7, 2025	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Pre-Funded Warrant	306,120	$0.00	-	Direct
Dec 2, 2024	CERO CERO THERAPEUTICS HOLDINGS, INC.	Award(A) Stock Option (Right to Buy)	254,000	-	-	Direct
Sep 30, 2024	CERO CERO THERAPEUTICS HOLDINGS, INC.	Disposition(D) Stock Option (Right to Buy)	13,857	-	-	Direct
Sep 30, 2024	CERO CERO THERAPEUTICS HOLDINGS, INC.	Disposition(D) Stock Option (Right to Buy)	1,317,956	-	-	Direct
Sep 25, 2024	CERO CERO THERAPEUTICS HOLDINGS, INC.	Exercise(M)	19,358,578	-	$0	Indirect

1-13 of 13 transactions

About ATWOOD BRIAN G

ATWOOD BRIAN G (SEC CIK 0001266567) files insider reports with the SEC as Director of CERO THERAPEUTICS HOLDINGS, INC. (CERO).

Signal8 holds 8 ownership filings by ATWOOD BRIAN G, all Form 4s, filed between Oct 2, 2024 and Jan 9, 2026. Those filings report 13 transactions, from Sep 25, 2024 to Jan 7, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on ATWOOD BRIAN G's filings is in SOUTH SAN FRANCISCO, CA.

Recent filings by ATWOOD BRIAN G

Jan 7, 2026: Grant or award of CERO derivative securities (Form 4, code A).
May 30, 2025: Grant or award of CERO derivative securities (Form 4, code A).
Mar 31, 2025: Option exercise of CERO shares (Form 4, code M).
Mar 4, 2025: Grant or award of CERO derivative securities (Form 4, code A).
Feb 24, 2025: Grant or award of CERO derivative securities (Form 4, code A).

Other insiders filing for CERO THERAPEUTICS HOLDINGS, INC. (CERO)

Francois Eric, Director
Rolfe Lindsey, Director
LAPORTE KATHLEEN, Director
Pierce Kristen, Chief Development Officer
Patel Shami, Director
Ehrlich Christopher B, Chairman and CEO

How to read Form 4 transaction codes