Greenwich Lifesciences
GLSI · NASDAQ
$16.24+$1.03 (+6.77%)TodayMarket closed ·
Prev close $15.21
Who owns GLSI
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 55.5% of GLSI’s shares.
- Patel (Snehal)38.2%
- McWilliams (David B)4.2%
- BlackRock Institutional Trust Company, N.A.3.0%
- Hallock (Kenneth)2.7%
- Next 6 largest institutions7.4%
- All other shareholders44.5%
| Holder | Shares | % of shares |
|---|---|---|
| Patel (Snehal) | 5.61M | 38.22% |
| McWilliams (David B) | 620.33K | 4.23% |
| BlackRock Institutional Trust Company, N.A. | 438.10K | 2.98% |
| Hallock (Kenneth) | 397.33K | 2.71% |
| Rothe (Eric) | 313.25K | 2.13% |
| Vanguard Capital Management, LLC | 278.19K | 1.90% |
| Geode Capital Management, L.L.C. | 168.18K | 1.15% |
| State Street Investment Management (US) | 143.09K | 0.97% |
| Daugherty (Frank Joseph) | 90.13K | 0.61% |
| DIM Funds SICAV S.A. | 87.00K | 0.59% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 199.01K | 1.36% |
| iShares Russell 2000 ETF | 179.89K | 1.23% |
| DIM Sicav PV Buyback USA | 87.00K | 0.59% |
| Fidelity Small Cap Index Fund | 73.67K | 0.50% |
| Vanguard Extended Market Index Fund | 72.27K | 0.49% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $97.00K (5 trades) of GLSI on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Patel Snehal | Buy | 700 | $9.17K |
| Patel Snehal | Buy | 1.50K | $20.39K |
| Patel Snehal | Buy | 1.50K | $20.43K |
| Patel Snehal | Buy | 1.10K | $14.17K |
| Patel Snehal | Buy | 2.50K | $32.85K |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.58M
- Days to cover
- 11.38
- % of shares outstanding
- 10.77%
- Average daily volume
- 138.98K
- Change since last report
- −3.1%
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