Greenwich LifeSciences, Inc.
GLSI- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001799788
In the last 90 days, Greenwich LifeSciences, Inc. insiders filed 3 open-market purchases and 0 sales; 57 institutions reported holding it in 13F filings for Q2 2026, worth $39.6M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Greenwich LifeSciences, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 64
- +15 vs. Q4 2025
- Shares held
- 1.71M
- +682.6K (+66.2%) vs. Q4 2025
- Total value
- $41.1M
- +$19.5M (+90.0%) vs. Q4 2025
- New holders
- 24
- 18 more added
- Sold out
- 9
- 12 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GLSI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 57 | $39.6M |
| Q1 2026 | 64 | $41.1M |
| Q4 2025 | 50 | $27.9M |
| Q3 2025 | 51 | $12.1M |
| Q2 2025 | 51 | $11.2M |
| Q1 2025 | 46 | $11.1M |
| Q4 2024 | 42 | $13.3M |
| Q3 2024 | 39 | $16.4M |
| Q2 2024 | 34 | $17.6M |
| Q1 2024 | 31 | $12.9M |
| Q4 2023 | 27 | $5.64M |
| Q3 2023 | 24 | $4.75M |
| Q2 2023 | 23 | $6.06M |
| Q1 2023 | 28 | $11.4M |
| Q4 2022 | 22 | $10.2M |
| Q3 2022 | 21 | $7.21M |
| Q2 2022 | 34 | $8.74M |
| Q1 2022 | 34 | $18.3M |
| Q4 2021 | 35 | $19.4M |
| Q3 2021 | 36 | $31.9M |
| Q2 2021 | 30 | $36.4M |
| Q1 2021 | 19 | $8.90M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Greenwich LifeSciences, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 6 | $0 | 0.00% | −992−99.4% | Reduced |
| Rothschild Investment LLC | 1 | $24 | 0.00% | +1 | New |
| SRS Capital Advisors, Inc. | 1 | $24 | 0.00% | +1 | New |
| MAI Capital Management | 1 | $25 | 0.00% | +1 | New |
| Sunbelt Securities, Inc. | 2 | $48 | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 5 | $120 | 0.00% | +5 | New |
| Advisor Group Holdings, Inc. | 6 | $144 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 8 | $192 | 0.00% | +3+60.0% | Added |
| The PNC Financial Services Group, Inc. | 10 | $240 | 0.00% | −7−41.2% | Reduced |
| CVA Family Office, LLC | 10 | $240 | 0.00% | +10 | New |
| Allworth Financial LP | 12 | $289 | 0.00% | +12 | New |
| Federation des caisses Desjardins du Quebec | 13 | $312 | 0.00% | +13 | New |
| US Bancorp | 15 | $360 | 0.00% | +15 | New |
| GAMMA Investing LLC | 27 | $649 | 0.00% | +27 | New |
| Sterling Capital Management LLC | 40 | $961 | 0.00% | 00.0% | Unchanged |
| North Star Investment Management Corp. | 51 | $1.23K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 52 | $1.25K | 0.00% | +34+188.9% | Added |
| Geneos Wealth Management Inc. | 88 | $2.11K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 96 | $2.31K | 0.00% | 00.0% | Unchanged |
| Washington Trust Advisors, Inc. | 200 | $4.80K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 339 | $8.14K | 0.00% | −46−11.9% | Reduced |
| Citigroup Inc | 340 | $8.17K | 0.00% | +113+49.8% | Added |
| Legal & General Group Plc | 516 | $12.4K | 0.00% | −65−11.2% | Reduced |
| UBS Asset Management Americas Inc | 521 | $12.5K | 0.00% | +328+169.9% | Added |
| Ameritas Investment Partners, Inc. | 585 | $14.1K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 1,159 | $27.8K | 0.00% | −8,585−88.1% | Reduced |
| New York State Common Retirement Fund | 1,200 | $28.8K | 0.00% | −4,800−80.0% | Reduced |
| Nisa Investment Advisors, LLC | 1,200 | $28.8K | 0.00% | +1,200 | New |
| Farther Finance Advisors, LLC | 1,319 | $30.3K | 0.00% | +400+43.5% | Added |
| Tower Research Capital LLC (TRC) | 1,420 | $34.1K | 0.00% | +264+22.8% | Added |
| BNP Paribas Arbitrage, SA | 1,732 | $41.6K | 0.00% | −108−5.9% | Reduced |
| Newbridge Financial Services Group, Inc. | 2,100 | $50.4K | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 2,604 | $56.0K | 0.00% | −73−2.7% | Reduced |
| Wells Fargo & Company | 2,440 | $58.6K | 0.00% | −5,405−68.9% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 2,768 | $66.5K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 3,200 | $71.5K | 0.00% | +3,200 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 3,132 | $75.2K | 0.00% | +68+2.2% | Added |
| MetLife Investment Management | 3,814 | $91.6K | 0.00% | +3,814 | New |
| FMR LLC | 4,107 | $98.7K | 0.00% | +106+2.6% | Added |
| Deutsche Bank AG | 5,162 | $124.0K | 0.00% | −889−14.7% | Reduced |
| Rhumbline Advisers | 8,046 | $193.3K | 0.00% | −40−0.5% | Reduced |
| Raymond James Financial Inc | 9,837 | $236.3K | 0.00% | +9,837 | New |
| Vanguard Global Advisers, LLC | 10,335 | $248.2K | 0.00% | +10,335 | New |
| STRS Ohio | 13,700 | $329.1K | 0.00% | +8,000+140.4% | Added |
| Charles Schwab Investment Management Inc | 16,603 | $398.8K | 0.00% | −2,438−12.8% | Reduced |
| Millennium Management LLC | 17,398 | $417.9K | 0.00% | +17,398 | New |
| State of Wisconsin Investment Board | 20,339 | $488.5K | 0.00% | +20,339 | New |
| UBS Group AG | 21,116 | $507.2K | 0.00% | +15,036+247.3% | Added |
| EAM Investors, LLC | 21,430 | $514.7K | 0.06% | +21,430 | New |
| Marshall Wace, LLP | 25,658 | $616.3K | 0.00% | +25,658 | New |
| SEI Investments Co | 26,088 | $626.6K | 0.00% | +26,088 | New |
| Morgan Stanley | 29,827 | $716.4K | 0.00% | +3,448+13.1% | Added |
| Ancora Advisors, LLC | 37,500 | $900.8K | 0.02% | +37,500 | New |
| Goldman Sachs Group Inc | 39,521 | $949.3K | 0.00% | +17,976+83.4% | Added |
| Russell Investments Group, Ltd. | 39,697 | $953.6K | 0.00% | +39,137+6,988.8% | Added |
| Vanguard Fiduciary Trust Co | 44,908 | $1.08M | 0.00% | +44,908 | New |
| Bank of New York Mellon Corp | 46,523 | $1.12M | 0.00% | +32,657+235.5% | Added |
| Vanguard Portfolio Management LLC | 58,911 | $1.42M | 0.00% | +58,911 | New |
| Northern Trust Corp | 75,125 | $1.80M | 0.00% | +2,116+2.9% | Added |
| Nuveen, LLC | 88,717 | $2.13M | 0.00% | +88,717 | New |
| State Street Corp | 133,875 | $3.22M | 0.00% | +36,098+36.9% | Added |
| Geode Capital Management, LLC | 155,466 | $3.74M | 0.00% | +3,782+2.5% | Added |
| Vanguard Capital Management LLC | 298,266 | $7.16M | 0.00% | +298,266 | New |
| BlackRock, Inc. | 433,860 | $10.4M | 0.00% | +62,396+16.8% | Added |
| Credit Agricole S A | 0 | $0 | 0.00% | −87,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −28,797−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −28,068−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −11,830−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −10,325−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −9,677−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −7,187−100.0% | Sold out |
| Founders Capital Management | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −197−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |