3 institutions reported holding $2,743 of GT Biopharma Inc (GTBP) in SEC 13F filings for 2026-06-30. Largest institutional holders: MassMutual Private Wealth & Trust, FSB ($1,469), West Financial Advisors, LLC ($1,225), Hilltop National Bank ($49). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | MassMutual Private Wealth & Trust, FSB | $1,469 | 3,000 | Hold |
| 2 | West Financial Advisors, LLC | $1,225 | 2,500 | Hold |
| 3 | Hilltop National Bank | $49 | 100 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30