Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in GTBP held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 452K | $184K | β | 4.254% | 0.00% |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | 294K | $120K | +1429.0% | 2.772% | 0.00% |
| 3 | VANGUARD FIDUCIARY TRUST CO | 226K | $92K | β | 2.127% | 0.00% |
| 4 | SRS Capital Advisors, Inc. | 94K | $38K | β | 0.881% | 0.00% |
| 5 | CITADEL ADVISORS LLC | 66K | $27K | -18.1% | 0.623% | 0.00% |
| 6 | SeaCrest Wealth Management, LLC | 50K | $20K | 0.0% | 0.471% | 0.00% |
| 7 | UBS Group AG | 46K | $19K | +4596900.0% | 0.433% | 0.00% |
| 8 | TWO SIGMA SECURITIES, LLC | 32K | $13K | +153.7% | 0.299% | 0.00% |
| 9 | LPL Financial LLC | 30K | $12K | +185.8% | 0.286% | 0.00% |
| 10 | Invst, LLC | 23K | $10K | β | 0.220% | 0.00% |
| 11 | ADVISOR GROUP HOLDINGS, INC. | 21K | $9K | +950.0% | 0.198% | 0.00% |
| 12 | Cerity Partners LLC | 20K | $8K | +33.5% | 0.189% | 0.00% |
| 13 | Integrated Wealth Concepts LLC | 20K | $8K | 0.0% | 0.188% | 0.00% |
| 14 | Private Wealth Management Group, LLC | 20K | $8K | β | 0.188% | 0.00% |
| 15 | MORGAN STANLEY | 17K | $7K | -10.8% | 0.156% | 0.00% |
| 16 | Caitlin John, LLC | 17K | $7K | 0.0% | 0.155% | 0.00% |
| 17 | WELLS FARGO & COMPANY/MN | 16K | $7K | 0.0% | 0.151% | 0.00% |
| 18 | INTL FCSTONE INC. | 15K | $6K | β | 0.139% | 0.00% |
| 19 | Verdence Capital Advisors LLC | 12K | $5K | -7.7% | 0.113% | 0.00% |
| 20 | Prospera Financial Services Inc | 12K | $5K | 0.0% | 0.113% | 0.00% |
| 21 | LaSalle St. Investment Advisors, LLC | 11K | $4K | β | 0.104% | 0.00% |
| 22 | PARSONS CAPITAL MANAGEMENT INC/RI | 11K | $4K | 0.0% | 0.103% | 0.00% |
| 23 | HBK Sorce Advisory LLC | 10K | $4K | 0.0% | 0.094% | 0.00% |
| 24 | BlackRock, Inc. | 8K | $3K | -0.0% | 0.079% | 0.00% |
| 25 | Allworth Financial LP | 5K | $2K | +450000.0% | 0.042% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in GTBP β a direct measure of their conviction.
Filings activity in GTBP during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 40 | +5.3% | 13.27% | +6.11 pp | $1M | +85% |
| Q4 2025 | 38 | +100% | 7.16% | +4.24 pp | $0M | +145% |
| Q3 2025 | 19 | 14% | 2.92% | 11.37 pp | $0M | 80% |
| Q2 2025 | 22 | +4.8% | 14.29% | +9.65 pp | $1M | +208% |
| Q1 2025 | 21 | +11% | 4.64% | 1.58 pp | $0M | 25% |
| Q4 2024 | 19 | +12% | 6.22% | +1.19 pp | $0M | +24% |
| Q3 2024 | 17 | 5.6% | 5.03% | 2.02 pp | $0M | 29% |
| Q2 2024 | 18 | β | 7.05% | β | $0M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying GTBP stock.
Based on Q1 2026 13F filings, institutional ownership of GT Biopharma, Inc. stands at 13.3%, held across 40 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of GTBP, with approximately 451,875 shares worth $0.00B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of GTBP, including CITADEL ADVISORS LLC, TWO SIGMA SECURITIES, LLC.
Our composite Smart Money Score for GTBP is 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
14 institutions opened new positions in GTBP during Q1 2026, while 12 fully exited. 6 added to existing positions and 19 trimmed.
GTBP institutional ownership rose by 6.11 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 85.0% of all reported 13F value in GTBP, and the top 25 account for 98.8%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
GT Biopharma, Inc. (GTBP) Institutional Ownership