Greenwich LifeSciences, Inc. (GLSI) Insider Trading
Over the last 3 months, GLSI insiders made 5 open-market buys and 0 sales, a net purchase of $97K (SEC Form 4). Over the last 6 months, 32 institutions increased and 31 reduced their position (13F).
Insider Activity
Sentiment
100/100
Buys (3m)
5
Sells (3m)
0
Net (3m)
$97.0K
Insiders buying
Insider trades by month Buys Sells
Jan
Apr
Nov
Dec
Jan
Jul
Context3-month price -43.3%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 30, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 1,500 | $13.59 |
| Jul 30, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 700 | $13.10 |
| Jul 29, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 1,500 | $13.62 |
| Jul 27, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,500 | $13.14 |
| Jul 27, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 1,100 | $12.88 |
| Jan 15, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 1,800 | $29.83 |
| Jan 14, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,900 | $27.54 |
| Jan 5, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 4,300 | $21.36 |
| Jan 2, 2026 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,900 | $21.73 |
| Dec 19, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 4,100 | $12.62 |
| Nov 28, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 4,600 | $8.37 |
| Nov 17, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Grant | 100,000 | $8.20 |
| Nov 12, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 10,600 | $8.43 |
| Nov 4, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,300 | $9.26 |
| Apr 29, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 3,600 | $9.88 |
| Apr 22, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 5,400 | $8.98 |
| Apr 8, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 3,600 | $9.10 |
| Apr 7, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 5,500 | $8.73 |
| Jan 13, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,500 | $12.51 |
| Jan 8, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 1,100 | $13.31 |
| Jan 8, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 1,800 | $13.75 |
| Jan 7, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 3,400 | $12.95 |
| Jan 6, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,000 | $11.97 |
| Jan 3, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 2,400 | $11.36 |
| Jan 2, 2025 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Buy | 3,200 | $11.12 |
| Dec 27, 2024 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Grant | 1,148,723 | $12.16 |
| Dec 27, 2024 | Daugherty Frank Josephdirector, officer: Chief Medical Officer | Grant | 104,890 | $12.16 |
| Dec 27, 2024 | Hallock Kennethdirector | Grant | 41,349 | $12.16 |
| Dec 27, 2024 | Patel Snehaldirector, 10 percent owner, officer: CEO and CFO | Grant | 25,008 | $12.16 |
| Dec 27, 2024 | Rothe Ericdirector | Grant | 41,349 | $12.16 |
Source: GLSI SEC Form 4 filings, latest Jul 30, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their GLSI positions over the last 6 months (SEC Form 13F).
Increased
32
New positions
30
Reduced
31
Sold out
22
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 434K | May 13, 2026 |
| BLACKROCK, INC. | Increased | 371K | Feb 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 298K | May 15, 2026 |
| VANGUARD GROUP INC | Increased | 297K | Jan 29, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 155K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 152K | Feb 9, 2026 |
| STATE STREET CORP | Increased | 134K | May 15, 2026 |
| STATE STREET CORP | Increased | 98K | Feb 13, 2026 |
| NUVEEN, LLC | New Position | 89K | Apr 30, 2026 |
| CREDIT AGRICOLE S A | New Position | 87K | Feb 17, 2026 |
| NORTHERN TRUST CORP | Increased | 75K | May 14, 2026 |
| NORTHERN TRUST CORP | Reduced | 73K | Feb 17, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 59K | May 8, 2026 |
| BANK OF NEW YORK MELLON CORP | Increased | 47K | May 5, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 45K | May 8, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.