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.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Greenwich LifeSciences, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 3 filings
- 1 insider, $97.0K in total
- Open-market sells
- 0 filings
- Insiders trading
- 1
- Net value
- +$97.0K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Greenwich LifeSciences, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Patel Snehal | CEO and CFO | 5,611,402 | Jul 30, 2026 | 12 |
| McWilliams David | Director | 620,301 | Dec 27, 2024 | 0 |
| Thompson Jaye | VP Clinical Reg Affairs | 264,148 | Dec 27, 2024 | 0 |
| Daugherty Frank Joseph | Chief Medical Officer | 90,121 | Dec 27, 2024 | 0 |
| Rothe Eric | Director | – | Dec 27, 2024 | 0 |
| Hallock Kenneth | Director | 397,304 | Dec 27, 2024 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 14, 2026 (view filing) | Jan 12 | 2 days | Patel SnehalCEO and CFO | PPurchase | +2.90K | $27.54 | +$79.9K | +0.1%5.60M after | |
| Jan 15, 2026 (view filing) | Jan 13 | 2 days | Patel SnehalCEO and CFO | PPurchase | +1.80K | $29.83 | +$53.7K | 0.0%5.60M after | |
| Jul 27, 2026 (view filing)6:15 AM ET | Jul 23-24 | 4 days | Patel SnehalCEO and CFO | PPurchase | +3.60K | $13.06 | +$47.0K | +0.1%5.61M after | 2 lots |
| Jul 29, 2026 (view filing)6:05 AM ET | Jul 27 | 2 days | Patel SnehalCEO and CFO | PPurchase | +1.50K | $13.62 | +$20.4K | 0.0%5.61M after | |
| Jul 30, 2026 (view filing)6:05 AM ET | Jul 28-29 | 2 days | Patel SnehalCEO and CFO | PPurchase | +2.20K | $13.43 | +$29.6K | 0.0%5.61M after | 2 lots |