Greenwich LifesciencesGLSI
13F holders, Q1 2026 (March 31)64holders +14
20new positions
9sold out
1famous investor
$24.01avg. 13F price*
At the end of Q1 2026, 64 institutions reported holding Greenwich Lifesciences Inc. (GLSI) in their 13F filings, up 14 from Q4 2025. 20 opened new positions and 9 sold out. The largest holders were BlackRock, Inc. ($10.4M), Vanguard Capital Management LLC ($7.2M) and Geode Capital Management, LLC ($3.7M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Greenwich Lifesciences Inc.
- CUSIP
- 396879108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $6.1M |
| Exits | 9 | $3.9M |
All 13F filers, Q4 2025 → Q1 2026: 477,228 shares bought and 207,029 shares sold, net +270,199 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 64 holders
| BlackRock, Inc. | 0.00% | Add +16.8% | 433,860 | $10.4M |
| Vanguard Capital Management LLC | 0.00% | — | 298,266 | $7.2M |
| Geode Capital Management, LLC | 0.00% | Add +2.5% | 155,466 | $3.7M |
| State Street Corp. | 0.00% | Add +36.9% | 133,875 | $3.2M |
| Nuveen, LLC | 0.00% | New | 88,717 | $2.1M |
| Northern Trust Corp. | 0.00% | Add +2.9% | 75,125 | $1.8M |
| Vanguard Portfolio Management LLC | 0.00% | — | 58,911 | $1.4M |
| Bank of New York Mellon Corp | 0.00% | Add +235.5% | 46,523 | $1.1M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 44,908 | $1.1M |
| Russell Investments Group, Ltd. | 0.00% | Add +6988.8% | 39,697 | $954K |
| Goldman Sachs Group Inc. | 0.00% | Add +83.4% | 39,521 | $949K |
| Ancora Advisors LLC | 0.02% | New | 37,500 | $901K |
| Morgan Stanley | 0.00% | Add +13.1% | 29,827 | $716K |
| Sei Investments Co. | 0.00% | New | 26,088 | $627K |
| Marshall Wace, LLP | 0.00% | New | 25,658 | $616K |
| Informed Momentum Co LLC | 0.06% | New | 21,430 | $515K |
| UBS Group AG | 0.00% | Add +247.3% | 21,116 | $507K |
| State of Wisconsin Investment Board | 0.00% | New | 20,339 | $489K |
| Millennium Management | 0.00% | New | 17,398 | $418K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -12.8% | 16,603 | $399K |
| STRS Ohio | 0.00% | Add +140.3% | 13,700 | $329K |
| Vanguard Global Advisers, LLC | 0.00% | — | 10,335 | $248K |
| Raymond James Financial Inc. | 0.00% | New | 9,837 | $236K |
| Rhumbline Advisers | 0.00% | Reduce -0.5% | 8,046 | $193K |
| Deutsche Bank AG | 0.00% | Reduce -14.7% | 5,162 | $124K |
| FMR LLC | 0.00% | Add +2.6% | 4,107 | $99K |
| MetLife Investment Management, LLC | 0.00% | New | 3,814 | $92K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.2% | 3,132 | $75K |
| Jones Financial Companies LLLP | 0.00% | New | 3,200 | $71K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 2,768 | $66K |
| Wells Fargo & Company | 0.00% | Reduce -68.9% | 2,440 | $59K |
| JPMorgan Chase & Co. | 0.00% | Reduce -2.7% | 2,604 | $56K |
| NFSG Corp | 0.01% | No change | 2,100 | $50K |
| BNP Paribas Financial Markets | 0.00% | Reduce -5.9% | 1,732 | $42K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +22.8% | 1,420 | $34K |
| Farther Finance Advisors, LLC | 0.00% | Add +43.5% | 1,319 | $30K |
| Nisa Investment Advisors, LLC | 0.00% | New | 1,200 | $29K |
| New York State Common Retirement Fund | 0.00% | Reduce -80.0% | 1,200 | $29K |
| Barclays PLC | 0.00% | Reduce -88.1% | 1,159 | $28K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 585 | $14K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +169.9% | 521 | $13K |
| Legal & General Group Plc | 0.00% | Reduce -11.2% | 516 | $12K |
| Citigroup Inc. | 0.00% | Add +49.8% | 340 | $8K |
| California State Teachers Retirement System | 0.00% | Reduce -11.9% | 339 | $8K |
| Washington Trust Advisors, Inc. | 0.00% | No change | 200 | $5K |
| Optiver Holding B.V. | 0.00% | No change | 96 | $2K |
| Geneos Wealth Management Inc. | 0.00% | No change | 88 | $2K |
| Cwm, LLC | 0.00% | Add +188.9% | 52 | $1K |
| North Star Investment Management Corp. | 0.00% | No change | 51 | $1K |
| Sterling Capital Management LLC | 0.00% | No change | 40 | $961 |
| GAMMA Investing LLC | 0.00% | New | 27 | $649 |
| US Bancorp \de | 0.00% | New | 15 | $360 |
| Federation des caisses Desjardins du Quebec | 0.00% | New | 13 | $312 |
| Allworth Financial LP | 0.00% | New | 12 | $289 |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -41.2% | 10 | $240 |
| CVA Family Office, LLC | 0.00% | New | 10 | $240 |
| EverSource Wealth Advisors, LLC | 0.00% | Add +60.0% | 8 | $192 |
| Osaic Holdings, Inc. | 0.00% | No change | 6 | $144 |
| Root Financial Partners, LLC | 0.00% | New | 5 | $120 |
| Sunbelt Securities, Inc. | 0.00% | No change | 2 | $48 |
| MAI Capital Management | 0.00% | New | 1 | $25 |
| Rothschild Investment LLC | 0.00% | New | 1 | $24 |
| Arax Advisory Partners | 0.00% | New | 1 | $24 |
| Royal Bank of Canada | 0.00% | Reduce -99.4% | 6 | $0 |
"% of holder's portfolio" is GLSI's weight in each manager's 13F, not the share of Greenwich Lifesciences Inc. the manager owns.