GT BiopharmaGTBP
13F holders, Q1 2026 (March 31)42holders +4
13new positions
10sold out
1famous investor
$0.41avg. 13F price*
At the end of Q1 2026, 42 institutions reported holding GT Biopharma Inc. (GTBP) in their 13F filings, up 4 from Q4 2025. 13 opened new positions and 10 sold out. The largest holders were Vanguard Capital Management LLC ($184K), Geode Capital Management, LLC ($120K) and Vanguard Fiduciary Trust Co. ($92K). 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 Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $84K |
| Exits | 10 | $96K |
All 13F filers, Q4 2025 → Q1 2026: 595,109 shares bought and 140,761 shares sold, net +454,348 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 42 holders
| Vanguard Capital Management LLC | 0.00% | — | 451,875 | $184K |
| Geode Capital Management, LLC | 0.00% | Add +1429.0% | 294,459 | $120K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 225,938 | $92K |
| Arax Advisory Partners | 0.00% | New | 93,627 | $38K |
| Citadel Advisors | 0.00% | Reduce -18.1% | 66,165 | $27K |
| SeaCrest Wealth Management, LLC | 0.00% | No change | 50,000 | $20K |
| UBS Group AG | 0.00% | Add +4596900.0% | 45,970 | $19K |
| Two Sigma Securities, LLC | 0.00% | Add +153.7% | 31,796 | $13K |
| LPL Financial LLC | 0.00% | Add +185.8% | 30,382 | $12K |
| Invst, LLC | 0.00% | New | 23,400 | $10K |
| Osaic Holdings, Inc. | 0.00% | Add +950.0% | 21,000 | $9K |
| Keel Point, LLC | 0.00% | New | 20,768 | $8K |
| Cerity Partners LLC | 0.00% | Add +33.5% | 20,023 | $8K |
| Integrated Wealth Concepts LLC | 0.00% | No change | 20,006 | $8K |
| Private Wealth Management Group, LLC | 0.00% | New | 20,000 | $8K |
| Morgan Stanley | 0.00% | Reduce -10.8% | 16,599 | $7K |
| Caitlin John, LLC | 0.00% | No change | 16,500 | $7K |
| Wells Fargo & Company | 0.00% | No change | 16,037 | $7K |
| StoneX Group Inc. | 0.00% | New | 14,756 | $6K |
| Coston, McIsaac & Partners | 0.00% | No change | 17,092 | $6K |
| Am Investment Strategies LLC | 0.00% | No change | 15,000 | $6K |
| Virtu Financial LLC | 0.00% | New | 14,876 | $6K |
| Verdence Capital Advisors LLC | 0.00% | Reduce -7.7% | 12,000 | $5K |
| Prospera Financial Services Inc | 0.00% | No change | 11,996 | $5K |
| LaSalle St. Investment Advisors, LLC | 0.00% | New | 11,000 | $4K |
| Parsons Capital Management Inc. | 0.00% | No change | 10,900 | $4K |
| HBK Sorce Advisory LLC | 0.00% | No change | 10,000 | $4K |
| BlackRock, Inc. | 0.00% | Reduce -0.0% | 8,408 | $3K |
| Allworth Financial LP | 0.00% | Add +450000.0% | 4,501 | $2K |
| NFSG Corp | 0.00% | No change | 3,750 | $2K |
| Farther Finance Advisors, LLC | 0.00% | No change | 3,000 | $1K |
| MassMutual Private Wealth & Trust, FSB | 0.00% | New | 3,000 | $1K |
| West Financial Advisors, LLC | 0.00% | New | 2,500 | $1K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -0.2% | 1,698 | $693 |
| Triumph Capital Management | 0.00% | No change | 1,655 | $675 |
| Stone House Investment Management, LLC | 0.00% | New | 1,251 | $510 |
| FMR LLC | 0.00% | New | 1,000 | $408 |
| Hilltop National Bank | 0.00% | New | 100 | $41 |
| BNP Paribas Financial Markets | 0.00% | No change | 16 | $7 |
| JPMorgan Chase & Co. | 0.00% | No change | 1 | $0 |
| Royal Bank of Canada | 0.00% | New | 126 | $0 |
| SBI Securities Co., Ltd. | 0.00% | No change | 1 | $0 |
"% of holder's portfolio" is GTBP's weight in each manager's 13F, not the share of GT Biopharma Inc. the manager owns.