GTBP
GT Biopharma, Inc.
NASDAQ · Healthcare · Biotechnology · US
$0.24
−4.52%0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
-47.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 8, 2025 | Mun-Gavin David C. · director | A-Award | 31,250 | $1.33 |
| Sep 8, 2025 | Breen Michael Martin · director, officer: CEO and Director | A-Award | 100,000 | $1.33 |
| Sep 8, 2025 | URBAN ALAN LOUIS · officer: Chief Financial Officer | A-Award | 50,000 | $1.33 |
| Sep 8, 2025 | CASAMENTO CHARLES J · director | A-Award | 62,500 | $1.33 |
| Sep 8, 2025 | Kramer Hilary · director | A-Award | 31,250 | $1.33 |
| Oct 21, 2024 | URBAN ALAN LOUIS · officer: Chief Financial Officer | A-Award | 23,335 | $2.11 |
| Aug 15, 2023 | Breen Michael Martin · director, officer: Executive Chairman/Interim CEO | A-Award | 200,000 | $0.29 |
| Aug 15, 2023 | Ohri Manu · officer: CFO & Secretary | A-Award | 200,000 | $0.29 |
| Jun 21, 2023 | CASAMENTO CHARLES J · director | A-Award | 500,000 | $0.35 |
| Apr 11, 2023 | Breen Michael Martin · director, officer: Executive Chairman/Interim CEO | Purchase | 50,000 | $0.50 |
| Apr 10, 2023 | Ohri Manu · officer: CFO & Secretary | Purchase | 50,000 | $0.50 |
| Feb 1, 2023 | Breen Michael Martin · director, officer: Exec Chairman and Interim CEO | A-Award | 500,000 | $0.84 |
| Feb 1, 2023 | Ohri Manu · officer: Chief Financial Officer | A-Award | 500,000 | $0.84 |
| Feb 1, 2023 | SHROTRIYA RAJESH C MD · director | A-Award | 500,000 | $0.84 |
| Feb 1, 2023 | Wendel Bruce · director | A-Award | 500,000 | $0.84 |
| Jul 19, 2022 | Breen Michael Martin · officer: Exec. Chair. and Interim CEO | A-Award | 50,000 | $0.00 |
| Jul 19, 2022 | SHROTRIYA RAJESH C MD · director: | A-Award | 50,000 | $0.00 |
| Jul 19, 2022 | URBAN ALAN LOUIS · director: | A-Award | 50,000 | $0.00 |
| Jul 19, 2022 | Berk Gregory · officer: Pres. of R&D, CMO | A-Award | 50,000 | $0.00 |
| Jul 19, 2022 | Ohri Manu · officer: CFO & Secretary | A-Award | 200,000 | $0.00 |
| Jul 19, 2022 | Wendel Bruce · director: | A-Award | 50,000 | $0.00 |
| Feb 14, 2022 | Berk Gregory | A-Award | 278,058 | $0.00 |
| Feb 14, 2022 | Berk Gregory | A-Award | 50,000 | $6.33 |
| Feb 14, 2022 | SHROTRIYA RAJESH C MD | A-Award | 50,000 | $6.33 |
| Feb 14, 2022 | Choy Gavin | A-Award | 227,500 | $3.05 |
| Nov 12, 2021 | Breen Michael Martin | A-Award | 278,058 | $0.00 |
| Nov 12, 2021 | Breen Michael Martin | A-Award | 50,000 | $6.33 |
| Oct 7, 2021 | Wendel Bruce | A-Award | 347,572 | $0.00 |
| Oct 7, 2021 | Wendel Bruce | A-Award | 50,000 | $6.33 |
| Oct 7, 2021 | Wendel Bruce | Purchase | 441 | $8.73 |
Institutional positioning
13F filings over the trailing two quarters
New 38Increased 16Reduced 13Sold out 5
| Filer | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 451,875 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 376,399 | Aug 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 294,459 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 266,788 | Aug 12, 2026 |
| VANGUARD FIDUCIARY TRUST CO | Unchanged | 225,938 | Aug 13, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 225,938 | May 8, 2026 |
| HRT FINANCIAL LP | New Position | 107,140 | Aug 14, 2026 |
| Everhart Financial Group, Inc. | New Position | 100,000 | Jul 9, 2026 |
| Arax Advisory Partners | Unchanged | 93,627 | Aug 10, 2026 |
| SRS CAPITAL ADVISORS, INC. | New Position | 93,627 | May 13, 2026 |
| Opal Wealth Advisors, LLC | New Position | 81,811 | Jul 20, 2026 |
| NORTHERN TRUST CORP | New Position | 75,461 | Aug 13, 2026 |
| CITADEL ADVISORS LLC | Reduced | 66,165 | May 15, 2026 |
| 49 WEALTH MANAGEMENT, LLC | New Position | 64,000 | Aug 18, 2026 |
| ALONGSIDE, LLC | New Position | 64,000 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 8, 2025