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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 433,860 | $10.4M | 0.00% | +62,396+16.8% | Added |
| Vanguard Capital Management LLC | 298,266 | $7.16M | 0.00% | +298,266 | New |
| Geode Capital Management, LLC | 155,466 | $3.74M | 0.00% | +3,782+2.5% | Added |
| State Street Corp | 133,875 | $3.22M | 0.00% | +36,098+36.9% | Added |
| Nuveen, LLC | 88,717 | $2.13M | 0.00% | +88,717 | New |
| Northern Trust Corp | 75,125 | $1.80M | 0.00% | +2,116+2.9% | Added |
| Vanguard Portfolio Management LLC | 58,911 | $1.42M | 0.00% | +58,911 | New |
| Bank of New York Mellon Corp | 46,523 | $1.12M | 0.00% | +32,657+235.5% | Added |
| Vanguard Fiduciary Trust Co | 44,908 | $1.08M | 0.00% | +44,908 | New |
| Russell Investments Group, Ltd. | 39,697 | $953.6K | 0.00% | +39,137+6,988.8% | Added |
| Goldman Sachs Group Inc | 39,521 | $949.3K | 0.00% | +17,976+83.4% | Added |
| Ancora Advisors, LLC | 37,500 | $900.8K | 0.02% | +37,500 | New |
| Morgan Stanley | 29,827 | $716.4K | 0.00% | +3,448+13.1% | Added |
| SEI Investments Co | 26,088 | $626.6K | 0.00% | +26,088 | New |
| Marshall Wace, LLP | 25,658 | $616.3K | 0.00% | +25,658 | New |
| EAM Investors, LLC | 21,430 | $514.7K | 0.06% | +21,430 | New |
| UBS Group AG | 21,116 | $507.2K | 0.00% | +15,036+247.3% | Added |
| State of Wisconsin Investment Board | 20,339 | $488.5K | 0.00% | +20,339 | New |
| Millennium Management LLC | 17,398 | $417.9K | 0.00% | +17,398 | New |
| Charles Schwab Investment Management Inc | 16,603 | $398.8K | 0.00% | −2,438−12.8% | Reduced |
| STRS Ohio | 13,700 | $329.1K | 0.00% | +8,000+140.4% | Added |
| Vanguard Global Advisers, LLC | 10,335 | $248.2K | 0.00% | +10,335 | New |
| Raymond James Financial Inc | 9,837 | $236.3K | 0.00% | +9,837 | New |
| Rhumbline Advisers | 8,046 | $193.3K | 0.00% | −40−0.5% | Reduced |
| Deutsche Bank AG | 5,162 | $124.0K | 0.00% | −889−14.7% | Reduced |
| FMR LLC | 4,107 | $98.7K | 0.00% | +106+2.6% | Added |
| MetLife Investment Management | 3,814 | $91.6K | 0.00% | +3,814 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 3,132 | $75.2K | 0.00% | +68+2.2% | Added |
| Jones Financial Companies LLLP | 3,200 | $71.5K | 0.00% | +3,200 | New |
| Police & Firemen's Retirement System of New Jersey | 2,768 | $66.5K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 2,440 | $58.6K | 0.00% | −5,405−68.9% | Reduced |
| JPMorgan Chase & Co | 2,604 | $56.0K | 0.00% | −73−2.7% | Reduced |
| Newbridge Financial Services Group, Inc. | 2,100 | $50.4K | 0.01% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,732 | $41.6K | 0.00% | −108−5.9% | Reduced |
| Tower Research Capital LLC (TRC) | 1,420 | $34.1K | 0.00% | +264+22.8% | Added |
| Farther Finance Advisors, LLC | 1,319 | $30.3K | 0.00% | +400+43.5% | Added |
| 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 |
| Barclays PLC | 1,159 | $27.8K | 0.00% | −8,585−88.1% | Reduced |
| Ameritas Investment Partners, Inc. | 585 | $14.1K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 521 | $12.5K | 0.00% | +328+169.9% | Added |
| Legal & General Group Plc | 516 | $12.4K | 0.00% | −65−11.2% | Reduced |
| Citigroup Inc | 340 | $8.17K | 0.00% | +113+49.8% | Added |
| California State Teachers Retirement System | 339 | $8.14K | 0.00% | −46−11.9% | Reduced |
| Washington Trust Advisors, Inc. | 200 | $4.80K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 96 | $2.31K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 88 | $2.11K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 52 | $1.25K | 0.00% | +34+188.9% | Added |
| North Star Investment Management Corp. | 51 | $1.23K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 40 | $961 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 27 | $649 | 0.00% | +27 | New |
| US Bancorp | 15 | $360 | 0.00% | +15 | New |
| Federation des caisses Desjardins du Quebec | 13 | $312 | 0.00% | +13 | New |
| Allworth Financial LP | 12 | $289 | 0.00% | +12 | New |
| The PNC Financial Services Group, Inc. | 10 | $240 | 0.00% | −7−41.2% | Reduced |
| CVA Family Office, LLC | 10 | $240 | 0.00% | +10 | New |
| EverSource Wealth Advisors, LLC | 8 | $192 | 0.00% | +3+60.0% | Added |
| Advisor Group Holdings, Inc. | 6 | $144 | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 5 | $120 | 0.00% | +5 | New |
| Sunbelt Securities, Inc. | 2 | $48 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 1 | $25 | 0.00% | +1 | New |
| Rothschild Investment LLC | 1 | $24 | 0.00% | +1 | New |
| SRS Capital Advisors, Inc. | 1 | $24 | 0.00% | +1 | New |
| Royal Bank of Canada | 6 | $0 | 0.00% | −992−99.4% | Reduced |
| 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 |