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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.

Insider roster for Greenwich LifeSciences, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Patel SnehalCEO and CFO5,611,402Jul 30, 202612
McWilliams DavidDirector620,301Dec 27, 20240
Thompson JayeVP Clinical Reg Affairs264,148Dec 27, 20240
Daugherty Frank JosephChief Medical Officer90,121Dec 27, 20240
Rothe EricDirector–Dec 27, 20240
Hallock KennethDirector397,304Dec 27, 20240

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.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 30, 2026 (view filing)6:05 AM ETJul 28-292 daysPatel SnehalCEO and CFOPPurchase+2.20K$13.43+$29.6K0.0%5.61M after2 lots
Jul 29, 2026 (view filing)6:05 AM ETJul 272 daysPatel SnehalCEO and CFOPPurchase+1.50K$13.62+$20.4K0.0%5.61M after
Jul 27, 2026 (view filing)6:15 AM ETJul 23-244 daysPatel SnehalCEO and CFOPPurchase+3.60K$13.06+$47.0K+0.1%5.61M after2 lots
Jan 15, 2026 (view filing)Jan 132 daysPatel SnehalCEO and CFOPPurchase+1.80K$29.83+$53.7K0.0%5.60M after
Jan 14, 2026 (view filing)Jan 122 daysPatel SnehalCEO and CFOPPurchase+2.90K$27.54+$79.9K+0.1%5.60M after
Jan 5, 2026 (view filing)Dec 31, 20255 daysPatel SnehalCEO and CFOPPurchase+4.30K$21.36+$91.8K+0.1%5.60M after
Jan 2, 2026 (view filing)Dec 30, 20253 daysPatel SnehalCEO and CFOPPurchase+2.90K$21.73+$63.0K+0.1%5.60M after
Dec 19, 2025 (view filing)Dec 181 dayPatel SnehalCEO and CFOPPurchase+4.10K$12.62+$51.7K+0.1%5.59M after
Nov 28, 2025 (view filing)Nov 253 daysPatel SnehalCEO and CFOPPurchase+4.60K$8.37+$38.5K+0.1%5.59M after
Nov 12, 2025 (view filing)Nov 75 daysPatel SnehalCEO and CFOPPurchase+10.6K$8.43+$89.4K+0.2%5.58M after
Nov 4, 2025 (view filing)Oct 314 daysPatel SnehalCEO and CFOPPurchase+2.30K$9.26+$21.3K0.0%5.57M after
Apr 29, 2025 (view filing)Apr 254 daysPatel SnehalCEO and CFOPPurchase+3.60K$9.88+$35.6K+0.1%5.57M after
Apr 22, 2025 (view filing)Apr 175 daysLatePatel SnehalCEO and CFOPPurchase+5.40K$8.98+$48.5K+0.1%5.57M after
Apr 8, 2025 (view filing)Apr 71 dayPatel SnehalCEO and CFOPPurchase+3.60K$9.10+$32.8K+0.1%5.56M after
Apr 7, 2025 (view filing)Apr 43 daysPatel SnehalCEO and CFOPPurchase+5.50K$8.73+$48.0K+0.1%5.56M after
Jan 13, 2025 (view filing)Jan 103 daysPatel SnehalCEO and CFOPPurchase+2.50K$12.51+$31.3K0.0%5.55M after
Jan 8, 2025 (view filing)Jan 6-72 daysPatel SnehalCEO and CFOPPurchase+2.90K$13.58+$39.4K+0.1%5.55M after2 lots
Jan 7, 2025 (view filing)Jan 34 daysPatel SnehalCEO and CFOPPurchase+3.40K$12.95+$44.0K+0.1%5.55M after
Jan 6, 2025 (view filing)Jan 24 daysPatel SnehalCEO and CFOPPurchase+2.00K$11.97+$23.9K0.0%5.54M after
Jan 3, 2025 (view filing)Dec 31, 20243 daysPatel SnehalCEO and CFOPPurchase+2.40K$11.36+$27.3K0.0%5.54M after
Jan 2, 2025 (view filing)Dec 30, 20243 daysPatel SnehalCEO and CFOPPurchase+3.20K$11.12+$35.6K+0.1%5.54M after
Nov 25, 2024 (view filing)Nov 214 daysThompson JayeVP Clinical Reg AffairsPPurchase+1.00K$12.91+$12.9K+0.4%264.1K after
Sep 30, 2024 (view filing)Sep 264 daysPatel SnehalCEO and CFOPPurchase+1.50K$14.63+$21.9K0.0%5.54M after
Sep 16, 2024 (view filing)Aug 1235 daysLateThompson JayeVP Clinical Reg AffairsPPurchase+800$13.85+$11.1K+0.3%263.1K after
Aug 8, 2024 (view filing)Aug 62 daysPatel SnehalCEO and CFOPPurchase+2.00K$13.81+$27.6K0.0%5.53M after
Aug 7, 2024 (view filing)Aug 52 daysPatel SnehalCEO and CFOPPurchase+5.50K$13.18+$72.5K+0.1%5.53M after
Aug 5, 2024 (view filing)Aug 23 daysThompson JayeVP Clinical Reg AffairsPPurchase+1.00K$15.15+$15.2K+0.4%262.3K after
Jul 24, 2024 (view filing)Jul 231 dayPatel SnehalCEO and CFOPPurchase+1.50K$15.89+$23.8K0.0%5.53M after
Jul 22, 2024 (view filing)Jul 184 daysThompson JayeVP Clinical Reg AffairsPPurchase+1.00K$16.00+$16.0K+0.4%261.3K after
Jun 17, 2024 (view filing)Jun 134 daysPatel SnehalCEO and CFOPPurchase+174.8K$14.30+$2.50M+3.3%5.53M after
Apr 3, 2024 (view filing)Apr 12 daysPatel SnehalCEO and CFOPPurchase+3.00K$19.08+$57.2K+0.1%5.35M after
Mar 26, 2024 (view filing)Mar 224 daysPatel SnehalCEO and CFOPPurchase+2.50K$19.98+$50.0K0.0%5.35M after
Mar 22, 2024 (view filing)Mar 202 daysPatel SnehalCEO and CFOPPurchase+1.50K$17.68+$26.5K0.0%5.35M after
Mar 7, 2024 (view filing)Mar 52 daysPatel SnehalCEO and CFOPPurchase+3.50K$12.49+$43.7K+0.1%5.34M afterAmended
Mar 6, 2024 (view filing)Mar 42 daysPatel SnehalCEO and CFOPPurchase+4.10K$13.03+$53.4K+0.1%5.34M after
Feb 21, 2024 (view filing)Feb 165 daysPatel SnehalCEO and CFOPPurchase+10.8K$11.16+$120.5K+0.2%5.34M after
Feb 20, 2024 (view filing)Feb 155 daysPatel SnehalCEO and CFOPPurchase+12.7K$11.07+$140.6K+0.2%5.33M after
Nov 14, 2023 (view filing)Nov 104 daysPatel SnehalCEO and CFOPPurchase+5.00K$10.17+$50.9K+0.1%5.31M after
Nov 7, 2023 (view filing)Nov 34 daysPatel SnehalCEO and CFOPPurchase+3.50K$9.11+$31.9K+0.1%5.31M after
Oct 31, 2023 (view filing)Oct 274 daysThompson JayeVP Clinical Reg AffairsPPurchase+500$8.57+$4.29K+0.2%260.3K after
Oct 30, 2023 (view filing)Oct 264 daysPatel SnehalCEO and CFOPPurchase+2.50K$7.97+$19.9K0.0%5.30M after
Oct 27, 2023 (view filing)Oct 252 daysPatel SnehalCEO and CFOPPurchase+2.50K$7.91+$19.8K0.0%5.30M after
Oct 12, 2023 (view filing)Oct 102 daysPatel SnehalCEO and CFOPPurchase+1.00K$9.07+$9.07K0.0%5.30M after
Oct 5, 2023 (view filing)Oct 41 dayPatel SnehalCEO and CFOPPurchase+2.00K$8.63+$17.3K0.0%5.30M after
Sep 28, 2023 (view filing)Sep 262 daysThompson JayeVP Clinical Reg AffairsPPurchase+600$8.71+$5.23K+0.2%259.8K after
Sep 21, 2023 (view filing)Sep 192 daysPatel SnehalCEO and CFOPPurchase+4.00K$8.95+$35.8K+0.1%5.30M after
Sep 13, 2023 (view filing)Sep 112 daysPatel SnehalCEO and CFOPPurchase+1.00K$9.48+$9.48K0.0%5.29M after
Aug 24, 2023 (view filing)Aug 222 daysPatel SnehalCEO and CFOPPurchase+1.00K$9.97+$9.97K0.0%5.29M after
Aug 8, 2023 (view filing)Aug 44 daysPatel SnehalCEO and CFOPPurchase+2.00K$10.55+$21.1K0.0%5.29M after
Jul 25, 2023 (view filing)Jul 214 daysPatel SnehalCEO and CFOPPurchase+1.00K$9.20+$9.20K0.0%5.29M after