Breen Michael Martin
SEC insider (Form 3/4/5 filer). CIK 0001863633. CEO and Director at GT Biopharma, Inc. (GTBP). 3 reported Form 4/5 transactions since Sep 2024; latest on Sep 4, 2025. Located in SAN FRANCISCO, CA.
Companies Breen Michael Martin has filed insider reports for
- GT Biopharma, Inc. (GTBP): Director, Officer, CEO and Director
Breen Michael Martin
CIK: 0001863633
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)3 (100.0%)
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)
GTBP
GT Biopharma, Inc.
DirectorOfficer
Discretionary Trading P&L
Holdings
Transaction History (3 total)
- Sep 4, 2025GTBP
GT Biopharma, Inc.
AwardDirectOption to purchase Common Stock
100K shares- - Sep 4, 2025GTBP
GT Biopharma, Inc.
AwardDirectOption to purchase Common Stock
100K shares- - Sep 4, 2025GTBP
GT Biopharma, Inc.
AwardDirectOption to purchase Common Stock
100K shares-
1-3 of 3 transactions