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GLSI Insider Trading

Insider Ownership Percentage: 51.47%
Insider Buying (Last 12 Months): $654,160.00
Insider Selling (Last 12 Months): $0.00

Greenwich LifeSciences Insider Trading History Chart

This chart shows the insider buying and selling history at Greenwich LifeSciences by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Greenwich LifeSciences Share Price & Price History

Current Price: $26.18
Price Change: ▲ Price Increase of +0.194 (0.75%)
As of 03/26/2026 12:13 PM ET

This chart shows the closing price history over time for GLSI up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Greenwich LifeSciences Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/13/2026Snehal S. PatelCEOBuy1,800$29.83$53,694.005,604,102View SEC Filing Icon  
1/12/2026Snehal S. PatelCEOBuy2,900$27.54$79,866.005,602,302View SEC Filing Icon  
12/31/2025Snehal S. PatelCEOBuy4,300$21.36$91,848.005,599,402View SEC Filing Icon  
12/30/2025Snehal S. PatelCEOBuy2,900$21.73$63,017.005,595,102View SEC Filing Icon  
12/18/2025Snehal S. PatelCEOBuy4,100$12.62$51,742.005,592,202View SEC Filing Icon  
11/25/2025Snehal S. PatelCEOBuy4,600$8.37$38,502.005,588,102View SEC Filing Icon  
11/7/2025Snehal S. PatelCEOBuy10,600$8.43$89,358.005,583,502View SEC Filing Icon  
10/31/2025Snehal S. PatelCEOBuy2,300$9.26$21,298.005,572,902View SEC Filing Icon  
4/25/2025Snehal S. PatelCEOBuy3,600$9.88$35,568.005,570,602View SEC Filing Icon  
4/17/2025Snehal S. PatelCEOBuy5,400$8.98$48,492.005,567,002View SEC Filing Icon  
4/7/2025Snehal S. PatelCEOBuy3,600$9.10$32,760.005,561,602View SEC Filing Icon  
4/4/2025Snehal S. PatelCEOBuy5,500$8.73$48,015.005,558,002View SEC Filing Icon  
1/10/2025Snehal S. PatelCEOBuy2,500$12.51$31,275.005,552,502View SEC Filing Icon  
1/7/2025Snehal S. PatelCEOBuy1,800$13.75$24,750.005,550,002View SEC Filing Icon  
1/2/2025Snehal S. PatelCEOBuy2,000$11.97$23,940.005,543,702View SEC Filing Icon  
12/30/2024Snehal S. PatelCEOBuy3,200$11.12$35,584.005,539,302View SEC Filing Icon  
11/21/2024Jaye ThompsonVPBuy1,000$12.91$12,910.00264,148View SEC Filing Icon  
9/26/2024Snehal S. PatelCEOBuy1,500$14.63$21,945.005,536,102View SEC Filing Icon  
8/12/2024Jaye ThompsonVPBuy800$13.85$11,080.00263,148View SEC Filing Icon  
8/5/2024Snehal S. PatelCEOBuy5,500$13.18$72,490.005,532,602View SEC Filing Icon  
8/2/2024Jaye ThompsonVPBuy1,000$15.15$15,150.00262,348View SEC Filing Icon  
7/23/2024Snehal S. PatelCEOBuy1,500$15.89$23,835.005,527,102View SEC Filing Icon  
7/18/2024Jaye ThompsonVPBuy1,000$16.00$16,000.00261,348View SEC Filing Icon  
6/13/2024Snehal S. PatelCEOBuy174,825$14.30$2,499,997.505,525,602View SEC Filing Icon  
4/1/2024Snehal S. PatelCEOBuy3,000$19.08$57,240.005,350,777View SEC Filing Icon  
3/22/2024Snehal S. PatelCEOBuy2,500$19.98$49,950.005,347,777View SEC Filing Icon  
3/20/2024Snehal S. PatelCEOBuy1,500$17.68$26,520.005,345,277View SEC Filing Icon  
3/4/2024Snehal S. PatelCEOBuy4,100$13.03$53,423.005,340,277View SEC Filing Icon  
2/15/2024Snehal S. PatelCEOBuy12,700$11.07$140,589.005,325,377View SEC Filing Icon  
11/10/2023Snehal S. PatelCEOBuy5,000$10.17$50,850.005,312,677View SEC Filing Icon  
11/3/2023Snehal S. PatelCEOBuy3,500$9.11$31,885.005,307,677View SEC Filing Icon  
10/27/2023Jaye ThompsonVPBuy500$8.57$4,285.00260,348View SEC Filing Icon  
10/25/2023Snehal S. PatelCEOBuy2,500$7.91$19,775.005,301,677View SEC Filing Icon  
10/10/2023Snehal S. PatelCEOBuy1,000$9.07$9,070.005,299,177View SEC Filing Icon  
10/4/2023Snehal S. PatelCEOBuy2,000$8.63$17,260.005,298,177View SEC Filing Icon  
9/26/2023Jaye ThompsonVPBuy600$8.71$5,226.00259,848View SEC Filing Icon  
9/19/2023Snehal S. PatelCEOBuy4,000$8.95$35,800.005,296,177View SEC Filing Icon  
9/19/2023Snehal S. PatelCEOBuy4,000$8.95$35,800.005,296,177View SEC Filing Icon  
9/11/2023Snehal S. PatelCEOBuy1,000$9.48$9,480.005,292,177View SEC Filing Icon  
8/22/2023Snehal S. PatelCEOBuy1,000$9.97$9,970.005,291,177View SEC Filing Icon  
8/4/2023Snehal S. PatelCEOBuy2,000$10.55$21,100.005,290,177View SEC Filing Icon  
7/21/2023Snehal S. PatelCEOBuy1,000$9.20$9,200.005,288,177View SEC Filing Icon  
7/13/2023Jaye ThompsonVPBuy250$9.49$2,372.50259,248View SEC Filing Icon  
5/17/2023Snehal S. PatelCEOBuy1,000$11.69$11,690.005,287,177View SEC Filing Icon  
4/28/2023Jaye ThompsonVPBuy250$11.22$2,805.00258,998View SEC Filing Icon  
4/18/2023Snehal S. PatelCEOBuy2,000$11.12$22,240.005,279,177View SEC Filing Icon  
4/11/2023Jaye ThompsonVPBuy1,000$11.87$11,870.00258,745View SEC Filing Icon  
4/11/2023Snehal S. PatelCEOBuy5,000$12.42$62,100.005,271,177View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Greenwich LifeSciences (NASDAQ:GLSI)

4.16% of Greenwich LifeSciences stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at GLSI by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Greenwich LifeSciences Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/23/2026Virtu Financial LLC28,797$0.61M0.0%N/A0.208%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd10,325$0.22M0.0%N/A0.075%Search for SEC Filing on Google Icon
2/18/2026Man Group plc28,068$0.59M0.0%N/A0.203%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC9,744$0.21M0.0%+11.8%0.070%Search for SEC Filing on Google Icon
2/13/2026State Street Corp97,777$2.05M0.0%+19.3%0.706%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN7,845$0.17M0.0%+109.6%0.057%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC9,677$0.20M0.0%N/A0.070%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG6,051$0.13M0.0%-71.9%0.044%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.21,545$0.45M0.0%+8.6%0.156%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC151,684$3.19M0.0%+6.7%1.095%Search for SEC Filing on Google Icon
2/2/2026Strs Ohio5,700$0.12M0.0%-71.5%0.041%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC15,498$0.15M0.0%-54.7%0.112%Search for SEC Filing on Google Icon
11/17/2025Citadel Advisors LLC20,942$0.21M0.0%+52.1%0.151%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.282,181$2.81M0.0%+4.9%2.037%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP56,142$0.51M0.0%N/A0.420%Search for SEC Filing on Google Icon
8/8/2025Police & Firemen s Retirement System of New Jersey2,768$25K0.0%N/A0.021%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC138,982$1.26M0.0%+1.4%1.040%Search for SEC Filing on Google Icon
5/29/2025Rhumbline Advisers9,673$92K0.0%+48.7%0.072%Search for SEC Filing on Google Icon
5/28/2025Strs Ohio18,600$0.18M0.0%N/A0.139%Search for SEC Filing on Google Icon
5/13/2025HighTower Advisors LLC15,407$0.15M0.0%N/A0.116%Search for SEC Filing on Google Icon
5/9/2025Charles Schwab Investment Management Inc.19,007$0.18M0.0%+15.5%0.143%Search for SEC Filing on Google Icon
4/8/2025Rhumbline Advisers9,673$92K0.0%+48.7%0.074%Search for SEC Filing on Google Icon
4/7/2025GAMMA Investing LLC1,202$0.13M0.0%N/A0.009%Search for SEC Filing on Google Icon
2/17/2025Bank of America Corp DE7,262$82K0.0%+22.3%0.055%Search for SEC Filing on Google Icon
2/14/2025Northern Trust Corp87,423$0.98M0.0%+17.3%0.665%Search for SEC Filing on Google Icon
2/13/2025Barclays PLC9,648$0.11M0.0%+12.7%0.073%Search for SEC Filing on Google Icon
2/13/2025Renaissance Technologies LLC22,700$0.26M0.0%-30.2%0.173%Search for SEC Filing on Google Icon
2/13/2025Wells Fargo & Company MN2,847$32K0.0%+54.8%0.022%Search for SEC Filing on Google Icon
2/12/2025Brown Brothers Harriman & Co.4,000$45K0.0%N/A0.030%Search for SEC Filing on Google Icon
2/12/2025JPMorgan Chase & Co.7,061$79K0.0%+172.0%0.054%Search for SEC Filing on Google Icon
12/10/2024Garden State Investment Advisory Services LLC17,600$0.25M0.1%N/A0.134%Search for SEC Filing on Google Icon
11/19/2024Barclays PLC8,560$0.12M0.0%+323.3%0.065%Search for SEC Filing on Google Icon
11/16/2024Geode Capital Management LLC133,550$1.92M0.0%+4.6%1.016%Search for SEC Filing on Google Icon
11/15/2024Barclays PLC8,560$0.12M0.0%+323.3%0.065%Search for SEC Filing on Google Icon
11/15/2024State Street Corp71,408$1.03M0.0%+4.4%0.543%Search for SEC Filing on Google Icon
11/15/2024Garden State Investment Advisory Services LLC17,600$0.25M0.1%N/A0.134%Search for SEC Filing on Google Icon
11/12/2024Charles Schwab Investment Management Inc.16,455$0.24M0.0%-10.8%0.125%Search for SEC Filing on Google Icon
8/1/2024Rhumbline Advisers6,799$0.12M0.0%N/A0.053%Search for SEC Filing on Google Icon
7/26/2024Bank of New York Mellon Corp15,295$0.26M0.0%N/A0.119%Search for SEC Filing on Google Icon
5/10/2024Vanguard Group Inc.223,102$4.45M0.0%+0.6%1.732%Search for SEC Filing on Google Icon
2/14/2023683 Capital Management LLC11,700$0.18M0.0%N/A0.091%Search for SEC Filing on Google Icon
11/15/2022Pura Vida Investments LLC19,667$0.18M0.0%N/A0.153%Search for SEC Filing on Google Icon
8/8/2022Walleye Capital LLC10,656$90K0.0%N/A0.082%Search for SEC Filing on Google Icon
4/29/2022Nisa Investment Advisors LLC7,200$0.14M0.0%N/A0.056%Search for SEC Filing on Google Icon
2/7/2022SG Americas Securities LLC4,395$0.11M0.0%N/A0.034%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Greenwich LifeSciences logo
Greenwich LifeSciences, Inc., a clinical-stage biopharmaceutical company, develops novel cancer immunotherapies for breast cancer and other HER2/neu-expressing cancers. Its lead product candidate is GP2, an immunotherapy, which is in Phase III clinical trial to prevent breast cancer recurrences in patients who have previously undergone surgery. The company was formerly known as Norwell, Inc. and changed its name to Greenwich LifeSciences, Inc. in March 2018. Greenwich LifeSciences, Inc. was incorporated in 2006 and is headquartered in Stafford, Texas.
Read More on Greenwich LifeSciences

Today's Range

Now: $26.18
Low: $25.41
High: $26.85

50 Day Range

MA: $26.61
Low: $21.29
High: $33.56

52 Week Range

Now: $26.18
Low: $7.78
High: $34.10

Volume

42,478 shs

Average Volume

379,664 shs

Market Capitalization

$362.65 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.5

Who are the company insiders with the largest holdings of Greenwich LifeSciences?

Greenwich LifeSciences' top insider shareholders include:
  1. Snehal Patel (CEO)
  2. Jaye Thompson (VP)
  3. Frank Joseph Daugherty (Insider)
  4. David Mcwilliams (Director)
  5. Kenneth Hallock (Director)
Learn More about top insider investors at Greenwich LifeSciences.

Who are the major institutional investors of Greenwich LifeSciences?

Greenwich LifeSciences' top institutional investors include:
  1. Geode Capital Management LLC — 1.09%
  2. State Street Corp — 0.71%
  3. Virtu Financial LLC — 0.21%
  4. Man Group plc — 0.20%
  5. Goldman Sachs Group Inc. — 0.16%
  6. XTX Topco Ltd — 0.07%
Learn More about top institutional investors of Greenwich LifeSciences stock.

Which major investors are selling Greenwich LifeSciences stock?

During the last quarter, GLSI stock was sold by these institutional investors:
  1. Deutsche Bank AG
  2. Strs Ohio

Which major investors are buying Greenwich LifeSciences stock?

Within the last quarter, GLSI stock was acquired by institutional investors including:
  1. Virtu Financial LLC
  2. Man Group plc
  3. State Street Corp
  4. XTX Topco Ltd
  5. Jane Street Group LLC
  6. Geode Capital Management LLC
  7. Wells Fargo & Company MN
  8. Goldman Sachs Group Inc.
In the previous year, these company insiders have bought Greenwich LifeSciences stock:
  1. Snehal Patel (CEO)
  2. Jaye Thompson (VP)
Learn More investors buying Greenwich LifeSciences stock.

Greenwich LifeSciences Active Insiders

Snehal Patel
Snehal Patel (Age 62)
CEO
8 recent trades
Kenneth Hallock
Kenneth Hallock
Director
David Mcwilliams
David Mcwilliams
Director
Jaye Thompson
Jaye Thompson
VP
Frank Joseph Daugherty
Frank Joseph Daugherty (Age 75)
Insider