GT Biopharma Inc.
Last updated September 27, 2026
Organization details
- Legal name
- GT Biopharma Inc.
- Former names
- Oxis International Inc
- Ownership
- Public
- Status
- Active
- SIC code
- 2834 — Pharmaceutical Preparations
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- SAN Francisco
- Headquarters state / province
- California
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- GTBP
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0000109657
- EIN
- 94-1620407
Board of directors
-
Andrew J. Ritter · DirectorSince 2025
-
Bruce Wendel · DirectorSince 2023
-
Charles J. Casamento · DirectorSince 2023
-
David C. Mun-Gavin · DirectorSince 2025
-
Hilary Kramer · DirectorSince 2025
-
Michael Martin Breen · Director · CEO and DirectorSince 2023
-
Rajesh C. Shrotriya M.D. · DirectorSince 2023
Chief executives
Michael Martin Breen
· CEO and Director
Dates unknown
Director election results
Annual meeting of June 28, 2023. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
70.7%
-
84.5%
-
88.7%
-
89.5%
Board connections
3 of this board's directors also sit on 5 other boards.
- via Charles J. Casamento
- via Charles J. Casamento
- via Bruce Wendel
- via Michael Martin Breen
- via Charles J. Casamento
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $0
- 0 sales by 0 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 11, 2023 | Michael Martin Breen Director, Officer (Executive Chairman/Interim CEO) | Grant or award | +200,000 | $0.29 | $58,000 |
| Aug 11, 2023 | Ohri Manu Officer (CFO & Secretary) | Grant or award | +200,000 | $0.29 | $58,000 |
| Aug 11, 2023 | Ohri Manu Officer (CFO & Secretary) | Other | −200,000 | $0.29 | $58,000 |
| Aug 11, 2023 | Ohri Manu Officer (CFO & Secretary) | Other | +200,000 | $0.29 | $58,000 |
| Apr 11, 2023 | Michael Martin Breen Director, Officer (Executive Chairman/Interim CEO) | Open-market purchase | +50,000 | $0.50 | $25,000 |
| Apr 6, 2023 | Ohri Manu Officer (CFO & Secretary) | Open-market purchase | +50,000 | $0.50 | $25,000 |
Reviews (0)
Sign in to write a review.
No reviews yet. Be the first to write one.