In the last 12 months, insiders at GT Biopharma, Inc. ($GTBP) filed 20 transactions with the SEC: 2 open-market purchases totaling $50,000 and 0 sales totaling $0. Net insider sentiment: net buying.
GT Biopharma, Inc. operates in the Pharmaceutical preparations industry (Life sciences sector).
Most Active Insiders
- Ohri Manu (CFO & Secretary) — 4 transactions totaling $197,200
- Breen Michael Martin (Executive Chairman/Interim CEO) — 2 transactions totaling $82,400
- Wendel Bruce (Director) — 1 transaction totaling $0
- Breen Michael Martin (Exec Chairman and Interim CEO) — 1 transaction totaling $0
- Ohri Manu (Chief Financial Officer) — 1 transaction totaling $0
View all SEC Filings for GT Biopharma, Inc. (GTBP).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 4, 2025 | Kramer Hilary | Director | A | Option to purchase Common Stock | 31250 | $0.00 | 31,250.0000 | 2,234,328 | 9999.99% | 1.40% |
| Sept. 4, 2025 | Mun-Gavin David C. | Director | A | Option to purchase Common Stock | 31250 | $0.00 | 31,250.0000 | 2,234,328 | 9999.99% | 1.40% |
| Sept. 4, 2025 | Breen Michael Martin | CEO and Director | A | Option to purchase Common Stock | 100000 | $0.00 | 100,000.0000 | 2,234,328 | 9999.99% | 4.48% |
| Sept. 4, 2025 | Breen Michael Martin | CEO and Director | A | Option to purchase Common Stock | 100000 | $0.00 | 100,000.0000 | 2,234,328 | 9999.99% | 4.48% |
| Sept. 4, 2025 | Breen Michael Martin | CEO and Director | A | Option to purchase Common Stock | 100000 | $0.00 | 100,000.0000 | 2,234,328 | 9999.99% | 4.48% |
| Sept. 4, 2025 | URBAN ALAN LOUIS | Chief Financial Officer | A | Option to purchase Common Stock | 50000 | $0.00 | 50,000.0000 | 2,234,328 | 9999.99% | 2.24% |
| Sept. 4, 2025 | URBAN ALAN LOUIS | Chief Financial Officer | A | Option to purchase Common Stock | 50000 | $0.00 | 50,000.0000 | 2,234,328 | 9999.99% | 2.24% |
| Sept. 4, 2025 | CASAMENTO CHARLES J | Director | A | Option to purchase Common Stock | 62500 | $0.00 | 62,500.0000 | 2,234,328 | 9999.99% | 2.80% |
| Oct. 17, 2024 | URBAN ALAN LOUIS | Chief Financial Officer | A | Option to purchase Common Stock | 23335 | $0.00 | 23,335.0000 | 1,380,633 | 9999.99% | 1.69% |
| Aug. 11, 2023 | Ohri Manu | CFO & Secretary | A | Common Stock | 200000 | $0.29 | 550,000.0000 | 0 | 57.14% | 0.00% |
| Aug. 11, 2023 | Breen Michael Martin | Executive Chairman/Interim CEO | A | Common Stock | 200000 | $0.29 | 856,218.0000 | 0 | 30.48% | 0.00% |
| Aug. 11, 2023 | Ohri Manu | CFO & Secretary | J | Common Stock | 200000 | $0.29 | 350,000.0000 | 0 | 36.36% | 0.00% |
| Aug. 11, 2023 | Ohri Manu | CFO & Secretary | J | Common Stock | 200000 | $0.29 | 350,000.0000 | 0 | 133.33% | 0.00% |
| June 16, 2023 | CASAMENTO CHARLES J | Director | A | Option to purchase Common Stock | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |
| April 11, 2023 | Breen Michael Martin | Executive Chairman/Interim CEO | P | Common Stock | 50000 | $0.50 | 656,218.0000 | 0 | 8.25% | 0.00% |
| April 6, 2023 | Ohri Manu | CFO & Secretary | P | Common Stock | 50000 | $0.50 | 150,000.0000 | 0 | 50.00% | 0.00% |
| Jan. 27, 2023 | Breen Michael Martin | Exec Chairman and Interim CEO | A | Option to purchase Common Stock | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 27, 2023 | Ohri Manu | Chief Financial Officer | A | Option to purchase Common Stock | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 27, 2023 | SHROTRIYA RAJESH C MD | Director | A | Option to purchase Common Stock | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |
| Jan. 27, 2023 | Wendel Bruce | Director | A | Option to purchase Common Stock | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |