GT Biopharma, Inc.
GTBPHealthcare|Biotechnology|US
$4.42
-0.12 (-2.64%)
DCF Value
$27.76
Tangible Book / Share
$2.30
Cash / Share
$3.19
Ownership Breakdown
106.1%
Float
1.3M
Shares Outstanding
1.3M
Float Shares
Major Holders (4)
Combined: 27.1%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
Insider Trades (100)
Last 4 quarters: 2,550,000 acquired · 100,000 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Mun-Gavin David C. | director | Sep 4, 2025 | AWARD | 31,250 | $1.33 | $41.6K | Form 4 |
| Breen Michael Martin | director, officer: CEO and Director | Sep 4, 2025 | AWARD | 100,000 | $1.33 | $133.0K | Form 4 |
| URBAN ALAN LOUIS | Chief Financial Officer | Sep 4, 2025 | AWARD | 50,000 | $1.33 | $66.5K | Form 4 |
| CASAMENTO CHARLES J | director | Sep 4, 2025 | AWARD | 62,500 | $1.33 | $83.1K | Form 4 |
| Kramer Hilary | director | Sep 4, 2025 | AWARD | 31,250 | $1.33 | $41.6K | Form 4 |
| Mun-Gavin David C. | director: | Jun 10, 2025 | OTHER | 0 | — | — | Form 4 |
| Kramer Hilary | director: | May 7, 2025 | OTHER | 0 | — | — | Form 4 |
| Ritter Andrew J | director: | May 8, 2025 | OTHER | 0 | — | — | Form 4 |
| URBAN ALAN LOUIS | Chief Financial Officer | Oct 17, 2024 | AWARD | 23,335 | $2.11 | $49.2K | Form 4 |
| URBAN ALAN LOUIS | officer | Jun 3, 2024 | OTHER | 0 | — | — | Form 4 |
| Breen Michael Martin | director, officer: Executive Chairman/Interim CEO | Aug 11, 2023 | AWARD | 200,000 | $0.29 | $57.4K | Form 4 |
| Ohri Manu | CFO & Secretary | Aug 11, 2023 | J | 200,000 | $0.29 | $57.4K | Form 4 |
| Ohri Manu | CFO & Secretary | Aug 11, 2023 | AWARD | 200,000 | $0.29 | $57.4K | Form 4 |
| Ohri Manu | CFO & Secretary | Aug 11, 2023 | DISPOSED | 200,000 | $0.29 | $57.4K | Form 4 |
| CASAMENTO CHARLES J | director | Jun 16, 2023 | AWARD | 500,000 | $0.35 | $175.0K | Form 4 |
| CASAMENTO CHARLES J | director: | May 1, 2023 | OTHER | 0 | — | — | Form 4 |
| Breen Michael Martin | director, officer: Executive Chairman/Interim CEO | Apr 11, 2023 | BUY | 50,000 | $0.50 | $25.0K | Form 4 |
| Ohri Manu | CFO & Secretary | Apr 6, 2023 | BUY | 50,000 | $0.50 | $25.0K | Form 4 |
| Breen Michael Martin | director, officer: Exec Chairman and Interim CEO | Jan 27, 2023 | AWARD | 500,000 | $0.84 | $418.5K | Form 4 |
| SHROTRIYA RAJESH C MD | director | Jan 27, 2023 | AWARD | 500,000 | $0.84 | $418.5K | Form 4 |
| Ohri Manu | Chief Financial Officer | Jan 27, 2023 | AWARD | 500,000 | $0.84 | $418.5K | Form 4 |
| Wendel Bruce | director | Jan 27, 2023 | AWARD | 500,000 | $0.84 | $418.5K | Form 4 |
| Breen Michael Martin | Exec. Chair. and Interim CEO | Jul 15, 2022 | AWARD | 50,000 | — | — | Form 4 |
| SHROTRIYA RAJESH C MD | director: | Jul 15, 2022 | AWARD | 50,000 | — | — | Form 4 |
| URBAN ALAN LOUIS | director | Jul 15, 2022 | AWARD | 50,000 | $2.48 | $124.0K | Form 4 |
| URBAN ALAN LOUIS | director: | Jul 15, 2022 | AWARD | 50,000 | — | — | Form 4 |
| Berk Gregory | Pres. of R&D, CMO | Jul 15, 2022 | AWARD | 50,000 | $2.48 | $124.0K | Form 4 |
| Berk Gregory | Pres. of R&D, CMO | Jul 15, 2022 | AWARD | 50,000 | — | — | Form 4 |
| Ohri Manu | CFO & Secretary | Jul 15, 2022 | AWARD | 200,000 | — | — | Form 4 |
| Ohri Manu | CFO & Secretary | Jul 15, 2022 | DISPOSED | 100,000 | — | — | Form 4 |
| Wendel Bruce | director: | Jul 15, 2022 | AWARD | 50,000 | — | — | Form 4 |
| URBAN ALAN LOUIS | director: | Jun 9, 2022 | OTHER | 0 | — | — | Form 4 |
| Ohri Manu | Feb 14, 2022 | OTHER | 0 | — | — | Form 4 | |
| Berk Gregory | Feb 16, 2021 | AWARD | 278,058 | — | — | Form 4 | |
| Berk Gregory | Feb 16, 2021 | AWARD | 50,000 | $6.33 | $316.5K | Form 4 | |
| SHROTRIYA RAJESH C MD | Feb 16, 2021 | AWARD | 50,000 | $6.33 | $316.5K | Form 4 | |
| Choy Gavin | Dec 31, 2021 | AWARD | 227,500 | $3.05 | $693.9K | Form 4 | |
| Berk Gregory | Nov 11, 2020 | OTHER | 0 | — | — | Form 4 | |
| Choy Gavin | Nov 28, 2021 | OTHER | 0 | — | — | Form 4 | |
| SHROTRIYA RAJESH C MD | Jan 13, 2021 | OTHER | 0 | — | — | Form 4 | |
| Breen Michael Martin | Feb 25, 2021 | CONVERSION | 9,859 | $3.40 | $33.5K | Form 4 | |
| Breen Michael Martin | Feb 25, 2021 | CONVERSION | 40,243 | $3.40 | $136.8K | Form 4 | |
| Breen Michael Martin | Feb 16, 2021 | AWARD | 278,058 | — | — | Form 4 | |
| Breen Michael Martin | Feb 16, 2021 | AWARD | 50,000 | $6.33 | $316.5K | Form 4 | |
| Breen Michael Martin | Feb 25, 2021 | CONVERSION | 30,000 | $3.40 | $102.0K | Form 4 | |
| Breen Michael Martin | Jun 23, 2020 | DISPOSED | 0 | $3.40 | — | Form 4 | |
| Wendel Bruce | Feb 16, 2021 | AWARD | 347,572 | — | — | Form 4 | |
| Wendel Bruce | Feb 16, 2021 | AWARD | 50,000 | $6.33 | $316.5K | Form 4 | |
| Wendel Bruce | Dec 22, 2020 | BUY | 441 | $8.73 | $3.8K | Form 4 | |
| Wendel Bruce | Dec 22, 2020 | BUY | 1,374 | $8.87 | $12.2K | Form 4 | |
| Wendel Bruce | Nov 16, 2020 | BUY | 3,268 | $3.14 | $10.3K | Form 4 | |
| Wendel Bruce | Nov 11, 2020 | OTHER | 0 | — | — | Form 4 | |
| Weldon Steven W | Dec 21, 2020 | SELL | 50,000 | $0.30 | $15.0K | Form 4 | |
| Weldon Steven W | Dec 21, 2020 | SELL | 50,000 | $0.33 | $16.5K | Form 4 | |
| Weldon Steven W | Dec 21, 2020 | SELL | 35,722 | $0.34 | $12.1K | Form 4 | |
| Weldon Steven W | Dec 22, 2020 | SELL | 47,978 | $0.40 | $19.2K | Form 4 | |
| Weldon Steven W | Dec 16, 2020 | SELL | 50,000 | $0.30 | $15.0K | Form 4 | |
| Weldon Steven W | Dec 17, 2020 | SELL | 50,000 | $0.30 | $15.0K | Form 4 | |
| Weldon Steven W | Dec 17, 2020 | SELL | 50,000 | $0.31 | $15.5K | Form 4 | |
| Weldon Steven W | Dec 18, 2020 | SELL | 50,000 | $0.30 | $15.0K | Form 4 | |
| Weldon Steven W | Dec 11, 2020 | SELL | 50,000 | $0.25 | $12.5K | Form 4 | |
| Weldon Steven W | Dec 11, 2020 | SELL | 50,000 | $0.26 | $13.0K | Form 4 | |
| Weldon Steven W | Dec 14, 2020 | SELL | 50,000 | $0.28 | $14.0K | Form 4 | |
| Weldon Steven W | Dec 14, 2020 | SELL | 50,000 | $0.29 | $14.5K | Form 4 | |
| Weldon Steven W | Dec 14, 2020 | SELL | 46,300 | $0.29 | $13.4K | Form 4 | |
| Weldon Steven W | Dec 15, 2020 | SELL | 50,000 | $0.30 | $15.0K | Form 4 | |
| Weldon Steven W | Dec 15, 2020 | SELL | 50,000 | $0.30 | $15.0K | Form 4 | |
| Weldon Steven W | Dec 15, 2020 | SELL | 50,000 | $0.32 | $16.0K | Form 4 | |
| Cataldo Tony | director, 10 percent owner, officer: CEO | Jun 2, 2020 | SELL | 4,234,320 | $0.00 | $4.2K | Form 4 |
| Weldon Steven W | director, officer: CFO | May 13, 2020 | SELL | 2,269,708 | $0.00 | $2.3K | Form 4 |
| Cataldo Tony | director, 10 percent owner, officer: CEO | Aug 14, 2019 | AWARD | 7,000,000 | — | — | Form 4 |
| Weldon Steven W | director, 10 percent owner, officer: CFO | Aug 14, 2019 | AWARD | 4,500,000 | — | — | Form 4 |
| Urbanski Raymond W. | director, officer: CEO | Feb 1, 2019 | SELL | 176,980 | $0.00 | $176.98 | Form 4 |
| Cataldo Tony | director | Feb 6, 2019 | SELL | 800,000 | $0.00 | $800.00 | Form 4 |
| Cross Shawn | Nov 16, 2017 | OTHER | 0 | — | — | Form 4 | |
| Cataldo Tony | director, 10 percent owner, officer: Executive Chairman | Sep 1, 2017 | AWARD | 5,129,660 | — | — | Form 4 |
| Cataldo Tony | director, 10 percent owner, officer: Executive Chairman | Nov 2, 2017 | GIFT | 200,000 | — | — | Form 4 |
| Cataldo Tony | director, 10 percent owner, officer: Executive Chairman | Nov 2, 2017 | GIFT | 100,000 | — | — | Form 4 |
| Cataldo Tony | director, 10 percent owner, officer: Executive Chairman | Nov 2, 2017 | GIFT | 3,000,000 | — | — | Form 4 |
| Urbanski Raymond W. | Chief Medical Officer | Sep 1, 2017 | DISPOSED | 0 | — | — | Form 4 |
| Clarence-Smith Kathleen | director, 10 percent owner, officer: CEO | Sep 1, 2017 | DISPOSED | 0 | — | — | Form 4 |
| Weldon Steven W | director, officer: CFO | Sep 1, 2017 | AWARD | 2,566,835 | — | — | Form 4 |
| Silverman Mark J | 10 percent owner | Sep 1, 2017 | DISPOSED | 0 | — | — | Form 4 |
| BRISTOL INVESTMENT FUND LTD | 10 percent owner | Apr 4, 2016 | SELL | 675,000 | $303750.00 | $205.03B | Form 4 |
| BRISTOL INVESTMENT FUND LTD | 10 percent owner | Apr 5, 2016 | J | 250,000 | — | — | Form 4 |
| BRISTOL INVESTMENT FUND LTD | 10 percent owner | Feb 9, 2016 | DISPOSED | 0 | — | — | Form 4 |
| Cataldo Tony | director, 10 percent owner, officer: CEO | Jan 25, 2016 | DISPOSED | 0 | — | — | Form 4 |
| Weldon Steven W | director, officer: CFO | Jan 25, 2016 | DISPOSED | 0 | — | — | Form 4 |
| BRISTOL INVESTMENT FUND LTD | 10 percent owner | Jan 13, 2016 | DISPOSED | 0 | — | — | Form 4 |
| BRISTOL INVESTMENT FUND LTD | 10 percent owner | Jan 13, 2016 | DISPOSED | 3,912,447 | $1.25 | $4.9M | Form 4 |
| Saloff David | director, officer: CEO, Chairman of the Board | Mar 1, 2012 | AWARD | 26,334,193 | $0.04 | $1.1M | Form 4 |
| Saloff David | director, officer: Chief Executive Officer | Aug 31, 2011 | AWARD | 538,713 | $0.05 | $28.8K | Form 4 |
| Saloff David | director | Jun 30, 2011 | DISPOSED | 777,778 | $0.09 | $70.0K | Form 4 |
| Eaton Kenneth Haynes | director | Jun 27, 2011 | DISPOSED | 250,000 | $0.09 | $22.5K | Form 4 |
| DUBE ANSHUMAN | director | May 20, 2011 | BUY | 0 | $0.10 | — | Form 4 |
| HOOG THOMAS W | director | Oct 1, 2010 | DISPOSED | 250,000 | $0.11 | $27.5K | Form 4 |
| DUBE ANSHUMAN | director, 10 percent owner: | Dec 23, 2010 | CONVERSION | 700,000 | $0.05 | $35.0K | Form 4 |
| DUBE ANSHUMAN | director, 10 percent owner: | Dec 23, 2010 | CONVERSION | 700,000 | $0.05 | $35.0K | Form 4 |
| DUBE ANSHUMAN | director, 10 percent owner: | Dec 23, 2010 | SELL | 339,900 | $0.13 | $44.2K | Form 4 |
| DUBE ANSHUMAN | director, 10 percent owner: | Dec 27, 2010 | SELL | 360,100 | $0.13 | $47.2K | Form 4 |