Greenwich LifeSciences, Inc. (GLSI) Insider Ownership

Historic Insider Ownership Trends

According to recent filings covering the 90 days ending January 09, 2026, the three most significant insider holders at Greenwich LifeSciences are Ceo And Cfo Snehal Patel (8.31Mn shares), Director David Mcwilliams (620.30K shares), Director Kenneth Hallock (397.30K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Snehal Patel Ceo And Cfo 8,312,288 05 Jan, 2026
David Mcwilliams 620,301 15 Dec, 2021
Kenneth Hallock 397,304 24 Jan, 2022
Jaye Thompson Vp Clinical Reg Affairs 264,148 25 Nov, 2024
Frank Joseph Daugherty Chief Medical Officer 90,121 26 Apr, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Dec, 2025 Snehal Patel Common Stock A 4,300 $21.36 5,599,402 D P
30 Dec, 2025 Snehal Patel Common Stock A 2,900 $21.73 5,595,102 D P
18 Dec, 2025 Snehal Patel Common Stock A 4,100 $12.62 5,592,202 D P
25 Nov, 2025 Snehal Patel Common Stock A 4,600 $8.37 5,588,102 D P
07 Nov, 2025 Snehal Patel Common Stock A 10,600 $8.43 5,583,502 D P
31 Oct, 2025 Snehal Patel Common Stock A 2,300 $9.26 5,572,902 D P
25 Apr, 2025 Snehal Patel Common Stock A 3,600 $9.88 5,570,602 D P
17 Apr, 2025 Snehal Patel Common Stock A 5,400 $8.98 5,567,002 D P
07 Apr, 2025 Snehal Patel Common Stock A 3,600 $9.10 5,561,602 D P
04 Apr, 2025 Snehal Patel Common Stock A 5,500 $8.73 5,558,002 D P
10 Jan, 2025 Snehal Patel Common Stock A 2,500 $12.51 5,552,502 D P
07 Jan, 2025 Snehal Patel Common Stock A 1,800 $13.75 5,550,002 D P
06 Jan, 2025 Snehal Patel Common Stock A 1,100 $13.31 5,548,202 D P
03 Jan, 2025 Snehal Patel Common Stock A 3,400 $12.95 5,547,102 D P
02 Jan, 2025 Snehal Patel Common Stock A 2,000 $11.97 5,543,702 D P
31 Dec, 2024 Snehal Patel Common Stock A 2,400 $11.36 5,541,702 D P
30 Dec, 2024 Snehal Patel Common Stock A 3,200 $11.12 5,539,302 D P
21 Nov, 2024 Jaye Thompson - - 264,148 D
21 Nov, 2024 Jaye Thompson Common Stock A 1,000 $12.91 264,148 D P
26 Sep, 2024 Snehal Patel Common Stock A 1,500 $14.63 5,536,102 D P