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Smart Investors Daily
GL

NASDAQ · GLSI

Greenwich LifeSciences, Inc.

Healthcare · Biotechnology

$15.06

Up+$0.39 (+2.59%)

Updated Sep 12, 2026, 1:04 AM

SID Score

2.8/10

Composite research score

Smart Money

Institutional and insider signal

Market cap
155.53M
P/E ratio
-7.87
Dividend yield
0.00%
52-week range
$12.51 – $30.26
Volume
68.52K
Avg. volume
77.6K

Price performance

GLSI price history

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GLSI research

Overview

Company profile and research snapshot.

Company profile

Greenwich LifeSciences Inc a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, Flamingo-01, which is evaluating GLSI-100, an immunotherapy to prevent breast cancer recurrences. GP2 is a 9 amino acid transmembrane peptide of the HER2/neu protein, a cell surface receptor protein that is expressed in a variety of common cancers, including expression in 75 percent of breast cancers at low (1+), intermediate (2+), and high (3+ or over-expressor) levels. The combination of GP2 + GM-CSF is called GLSI-100. The company is currently expanding Flamingo-01 into Europe with plans to open up to 150 sites globally.

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Analyst outlook

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Consensus
Average target
Implied upside
Analysts
GLSI recent ratings
DateFirmRatingTarget
Jul 21, 2026HC Wainwright & Co.Buy
Dec 30, 2025HC Wainwright & Co.Buy
Apr 21, 2025HC Wainwright & Co.Buy
Feb 11, 2025HC Wainwright & Co.Buy
Aug 23, 2024HC Wainwright & Co.Buy
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