GT BiopharmaGTBP
13F holders, Q3 2025 (September 30)21holders
3new positions
3sold out
1famous investor
$0.59avg. 13F price*
At the end of Q3 2025, 21 institutions reported holding GT Biopharma Inc. (GTBP) in their 13F filings, unchanged from Q2 2025. 3 opened new positions and 3 sold out. The largest holders were DRW Securities, LLC ($84K), Bank of Montreal ($55K) and Citadel Advisors ($24K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- GT Biopharma Inc.
- CUSIP
- 36254L308
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $117K |
| Exits | 3 | $94K |
All 13F filers, Q2 2025 → Q3 2025: 211,461 shares bought and 35,920 shares sold, net +175,541 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 21 holders
| DRW Securities, LLC | 0.00% | New | 142,380 | $84K |
| Bank of Montreal | 0.00% | No change | 92,530 | $55K |
| Citadel Advisors | 0.00% | New | 39,633 | $24K |
| Geode Capital Management, LLC | 0.00% | Add +0.5% | 23,966 | $14K |
| Two Sigma Securities, LLC | 0.00% | New | 17,065 | $10K |
| Morgan Stanley | 0.00% | Add +249.1% | 14,015 | $8K |
| Vanguard Group Inc. | 0.00% | No change | 10,504 | $6K |
| Wells Fargo & Company | 0.00% | No change | 10,012 | $6K |
| BlackRock, Inc. | 0.00% | No change | 9,737 | $6K |
| Osaic Holdings, Inc. | 0.00% | Reduce -55.7% | 5,073 | $5K |
| NFSG Corp | 0.00% | Add +36.4% | 3,750 | $2K |
| UBS Group AG | 0.00% | Reduce -54.8% | 2,626 | $2K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +278.7% | 1,704 | $999 |
| Clearstead Advisors, LLC | 0.00% | No change | 865 | $508 |
| Jones Financial Companies LLLP | 0.00% | No change | 300 | $230 |
| Bank of America Corp. | 0.00% | Reduce -17.2% | 24 | $14 |
| BNP Paribas Financial Markets | 0.00% | No change | 16 | $9 |
| Blue Bell Private Wealth Management, LLC | 0.00% | No change | 10 | $6 |
| SBI Securities Co., Ltd. | 0.00% | Reduce -16.7% | 5 | $3 |
| JPMorgan Chase & Co. | 0.00% | No change | 1 | $1 |
| Allworth Financial LP | 0.00% | No change | 1 | $1 |
"% of holder's portfolio" is GTBP's weight in each manager's 13F, not the share of GT Biopharma Inc. the manager owns.