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Greenwich Lifesciences Inc

GLSI
13.365USD
+0.355+2.73%
Close 12/22, 16:00ETQuotes delayed by 15 min
184.36MMarket Cap
LossP/E TTM

Greenwich Lifesciences Inc

13.365
+0.355+2.73%

More Details of Greenwich Lifesciences Inc Company

Greenwich LifeSciences, Inc. is a clinical-stage biopharmaceutical company focused on the development of GP2, an immunotherapy to prevent breast cancer recurrences in patients who have previously undergone surgery. GP2 is a 9-amino acid transmembrane peptide of the human epidermal growth factor receptor 2 (HER2) /neu protein, a cell surface receptor protein that is expressed in a variety of common cancers. It has commenced a Phase III clinical trial, Flamingo-01, an immunotherapy to prevent breast cancer recurrences. GP2 is delivered in combination with granulocyte-macrophage colony-stimulating factor (GM-CSF) to induce GP2 peptide-specific immunity. GP2 treatment is administered via an intradermal injection by mixing GP2 peptide and GM-CSF at the time of administration. Its cancer immunotherapy seeks to stimulate an individual's immune system to selectively attack cancer cells while not affecting normal cells or to deliver immune system components to inhibit the spread of cancer.

Greenwich Lifesciences Inc Info

Ticker SymbolGLSI
Company nameGreenwich Lifesciences Inc
IPO dateSep 25, 2020
CEOPatel (Snehal)
Number of employees4
Security typeOrdinary Share
Fiscal year-endSep 25
Address3992 Bluebonnet Dr, Building 14
CitySTAFFORD
Stock exchangeNASDAQ OMX - NASDAQ BASIC
CountryUnited States of America
Postal code77477
Phone12034343290
Websitehttps://greenwichlifesciences.com
Ticker SymbolGLSI
IPO dateSep 25, 2020
CEOPatel (Snehal)

Company Executives of Greenwich Lifesciences Inc

Name
Name/Position
Position
Shareholding
Change
Mr. Snehal Patel
Mr. Snehal Patel
Chief Executive Officer, Chief Financial Officer, Director
Chief Executive Officer, Chief Financial Officer, Director
5.59M
+0.27%
Mr. David B. Mcwilliams
Mr. David B. Mcwilliams
Independent Chairman of the Board
Independent Chairman of the Board
620.33K
--
Mr. Kenneth Hallock
Mr. Kenneth Hallock
Independent Director
Independent Director
397.33K
--
Mr. Eric Rothe
Mr. Eric Rothe
Independent Director
Independent Director
313.25K
--
Dr. Jaye Thompson, Ph.D.
Dr. Jaye Thompson, Ph.D.
Vice President - Clinical & Regulatory Affairs
Vice President - Clinical & Regulatory Affairs
--
--
Dr. F. Joseph Daugherty, M.D.
Dr. F. Joseph Daugherty, M.D.
Chief Medical Officer, Director
Chief Medical Officer, Director
--
--
Name
Name/Position
Position
Shareholding
Change
Mr. Snehal Patel
Mr. Snehal Patel
Chief Executive Officer, Chief Financial Officer, Director
Chief Executive Officer, Chief Financial Officer, Director
5.59M
+0.27%
Mr. David B. Mcwilliams
Mr. David B. Mcwilliams
Independent Chairman of the Board
Independent Chairman of the Board
620.33K
--
Mr. Kenneth Hallock
Mr. Kenneth Hallock
Independent Director
Independent Director
397.33K
--
Mr. Eric Rothe
Mr. Eric Rothe
Independent Director
Independent Director
313.25K
--
Dr. Jaye Thompson, Ph.D.
Dr. Jaye Thompson, Ph.D.
Vice President - Clinical & Regulatory Affairs
Vice President - Clinical & Regulatory Affairs
--
--
Dr. F. Joseph Daugherty, M.D.
Dr. F. Joseph Daugherty, M.D.
Chief Medical Officer, Director
Chief Medical Officer, Director
--
--

Revenue Breakdown

Relevant data have not been disclosed by the company yet.
Relevant data have not been disclosed by the company yet.
By Business
By Region
Relevant data have not been disclosed by the company yet.

Shareholding Stats

Updated: Sun, Nov 16
Updated: Sun, Nov 16
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
Patel (Snehal)
40.36%
McWilliams (David B)
4.48%
Hallock (Kenneth)
2.87%
BlackRock Institutional Trust Company, N.A.
2.38%
Rothe (Eric)
2.26%
Other
47.65%
Shareholders
Shareholders
Proportion
Patel (Snehal)
40.36%
McWilliams (David B)
4.48%
Hallock (Kenneth)
2.87%
BlackRock Institutional Trust Company, N.A.
2.38%
Rothe (Eric)
2.26%
Other
47.65%
Shareholder Types
Shareholders
Proportion
Individual Investor
52.53%
Investment Advisor
5.40%
Investment Advisor/Hedge Fund
2.59%
Hedge Fund
1.18%
Pension Fund
0.19%
Research Firm
0.09%
Bank and Trust
0.05%
Other
37.97%

Institutional Shareholding

Updated: Wed, Oct 1
Updated: Wed, Oct 1
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2025Q3
107
1.44M
10.41%
-178.67K
2025Q2
105
8.53M
63.79%
-335.20K
2025Q1
106
8.50M
64.50%
-388.04K
2024Q4
96
8.34M
63.41%
-410.99K
2024Q3
92
8.47M
64.65%
-203.33K
2024Q2
92
8.33M
64.66%
+241.77K
2024Q1
97
7.76M
60.42%
-184.06K
2023Q4
95
7.62M
59.30%
-311.10K
2023Q3
103
7.60M
59.17%
-679.19K
2023Q2
102
7.68M
59.81%
-652.02K
View more

Shareholder Activity

Name
Shares Held
Proportion
Change
Chg %
Date
Patel (Snehal)
5.57M
40.87%
+18.10K
+0.33%
Apr 25, 2025
McWilliams (David B)
620.33K
4.55%
--
--
Apr 11, 2025
Hallock (Kenneth)
397.33K
2.92%
--
--
Apr 11, 2025
BlackRock Institutional Trust Company, N.A.
333.57K
2.45%
+11.95K
+3.72%
Jun 30, 2025
Rothe (Eric)
313.25K
2.3%
--
--
Apr 11, 2025
The Vanguard Group, Inc.
269.00K
1.97%
-1.30K
-0.48%
Jun 30, 2025
Thompson (Jaye L)
264.14K
1.94%
+1.00K
+0.38%
Nov 21, 2024
Geode Capital Management, L.L.C.
138.98K
1.02%
+1.97K
+1.44%
Jun 30, 2025
Daugherty (Frank Joseph)
90.13K
0.66%
--
--
Apr 11, 2025
DIM Funds SICAV S.A.
87.00K
0.64%
--
--
Jun 30, 2024
View more

Related ETFs

Updated: Sat, Dec 6
Updated: Sat, Dec 6
Name
Proportion
iShares Micro-Cap ETF
0.01%
Global X Russell 2000 ETF
0%
Proshares Ultra Russell 2000
0%
ProShares UltraPro Russell2000
0%
ProShares Hedge Replication ETF
0%
iShares Russell 2000 ETF
0%
iShares Russell 2000 Growth ETF
0%
iShares Micro-Cap ETF
Proportion0.01%
Global X Russell 2000 ETF
Proportion0%
Proshares Ultra Russell 2000
Proportion0%
ProShares UltraPro Russell2000
Proportion0%
ProShares Hedge Replication ETF
Proportion0%
iShares Russell 2000 ETF
Proportion0%
iShares Russell 2000 Growth ETF
Proportion0%

Dividend

A total of 0.00 USD has been distributed in dividends over the past 5 years.
Date
Dividend
Record Date
Payment Date
Ex-dividend Date
No Data

Stock Split

Date
Type
Ratio
No Data
Date
Type
Ratio
No Data

FAQs

Who are the top five shareholders of Greenwich Lifesciences Inc?

The top five shareholders of Greenwich Lifesciences Inc are:
Patel (Snehal) holds 5.57M shares, accounting for 40.87% of the total shares.
McWilliams (David B) holds 620.33K shares, accounting for 4.55% of the total shares.
Hallock (Kenneth) holds 397.33K shares, accounting for 2.92% of the total shares.
BlackRock Institutional Trust Company, N.A. holds 333.57K shares, accounting for 2.45% of the total shares.
Rothe (Eric) holds 313.25K shares, accounting for 2.30% of the total shares.

What are the top three shareholder types of Greenwich Lifesciences Inc?

The top three shareholder types of Greenwich Lifesciences Inc are:
Patel (Snehal)
McWilliams (David B)
Hallock (Kenneth)

How many institutions hold shares of Greenwich Lifesciences Inc (GLSI)?

As of 2025Q3, 107 institutions hold shares of Greenwich Lifesciences Inc, with a combined market value of approximately 1.44M, accounting for 10.41% of the total shares. Compared to 2025Q2, institutional shareholding has increased by -53.38%.

What is the biggest source of revenue for Greenwich Lifesciences Inc?

In --, the -- business generated the highest revenue for Greenwich Lifesciences Inc, amounting to -- and accounting for --% of total revenue.
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