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    Greenwich LifeSciences Inc.

    Subscribe to $GLSI
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences, Inc., a clinical stage biopharmaceutical company, focuses on the development of novel cancer immunotherapies for breast cancer and other HER2/neu-expressing cancers. Its lead product candidate is the GP2, an immunotherapy, which has completed Phase IIb clinical trial to prevent recurrence of breast cancer following 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.

    IPO Year: 2020

    Exchange: NASDAQ

    Website: greenwichlifesciences.com

    Recent Analyst Ratings for Greenwich LifeSciences Inc.

    DatePrice TargetRatingAnalyst
    8/20/2025$45.00Outperform
    Noble Capital Markets
    9/1/2021$78.00Buy
    HC Wainwright & Co.
    See more ratings

    Greenwich LifeSciences Inc. Press Releases

    Fastest customizable press release news feed in the world

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    Greenwich LifeSciences Presents FLAMINGO-01 Phase III Trial Open Label Data Published at ASCO Meeting 2026

    STAFFORD, Texas, June 01, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today presents the published abstract and poster from the ASCO Annual Meeting 2026. The abstract is shown below and the poster being presented today can be seen and downloaded at the bottom of the Phase III clinical trial tab on the Company's website here. This is the second abstract and poster presented jointly with the Steering Committee of FLAMINGO-01 with statistically signi

    6/1/26 8:15:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Provides Update Regarding Form 10-K Filing

    STAFFORD, Texas, June 01, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on its Form 10-K filing for the fiscal year ending December 31, 2025. The Form 10-K for the fiscal year ending December 31, 2025, continues to be audited by our new auditor and we believe it is in the final approval steps. The Form 10-K also includes the 2024 audit that was previously audited by the prior auditor. As previously indicated, the accounts pay

    6/1/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-Q Filing

    STAFFORD, Texas, May 22, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) ("Greenwich" or the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that on May 20, 2026, the Company received notification from the Listing Qualifications Department of The Nasdaq Stock Market LLC notifying the Company that, because it has not yet filed its Quarterly Report on Form 10-Q for the three months ended March 31, 2026, the Company is not currently in compliance with Nasdaq Listing Rule 5250(c)(1), which req

    5/22/26 4:30:00 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Provides Update Regarding Form 10-K Filing

    STAFFORD, Texas, April 30, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on its Form 10-K filing for the fiscal year ending December 31, 2025. The Form 10-K for the fiscal year ending December 31, 2025 is still being audited by the auditors who are both trying to reach agreement on the final figures. They have indicated that they expect to complete their audits before the end of May in conjunction with the filing of Form 10-Q

    4/30/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Announces Acceptance of Abstract at ASCO 2026

    STAFFORD, Texas, April 23, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that an abstract has been accepted for publication at the upcoming 2026 ASCO Annual Meeting along with a corresponding poster presentation. The 2026 ASCO Annual Meeting will be held from May 28 to June 2, 2026. The full text of the abstract and poster will be available on June 1, 2026, the day of the presentation. CEO Snehal Patel commented, " We look forward to

    4/23/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-K Filing

    STAFFORD, Texas, April 22, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that on April 16, 2026, the Company received notification from the Listing Qualifications Department of The Nasdaq Stock Market LLC notifying the Company that, because it has not yet filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2025, the Company is not currently in compliance with Nasdaq Listing Rule 5250(c)(1), which requires timely

    4/22/26 5:00:00 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Presents FLAMINGO-01 Phase III Trial Open Label Data Published at AACR Meeting 2026

    STAFFORD, Texas, April 20, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today presents the published abstract and poster from the AACR Meeting 2026. The abstract is shown below and the poster being presented today can be seen and downloaded at the bottom of Phase III clinical trial tab on the Company's website here. This is the first abstract and poster presented jointly with the Steering Committee of FLAMINGO-01 with statistically significant dela

    4/20/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Provides Update on Financing Strategy

    STAFFORD, Texas, April 14, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided additional updates on its financing strategy. The Company's ATM financing vehicle allows the Company to sell its common stock directly into the trading market at market price. The amount raised through our ATM for Q1 2026 exceeded the Company's Q1 2026 cash burn rate, leading to a Q1 2026 cash balance of approximately $10.5 million as of March 31, 2026. The above

    4/14/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Provides Update on Patent Claims Potentially Doubling GP2 Market Potential

    STAFFORD, Texas, April 07, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on new patent claims based on FLAMINGO-01 statistically significant open label immune response and recurrence rate data. Statistically significant immune response and recurrence rate data is the basis for new claims recently filed that GLSI-100 clinically benefits non-HLA-A*02 patients, which the Company believes increases the market for GLSI-100 by an a

    4/7/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Announces Addition of City of Hope to FLAMINGO-01

    STAFFORD, Texas, March 19, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (NASDAQ:GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced the initiation of new clinical sites in the US. The Phase III clinical trial has recently been activated at City of Hope, one of the largest and most advanced cancer research and treatment organizations in the United States – specifically at its network sites in Los Angeles and Orange counties, Arizona, Atlanta, and Illinois. Principal investigator at City of Hop

    3/19/26 6:00:00 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

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    Noble Capital Markets initiated coverage on Greenwich LifeSciences with a new price target

    Noble Capital Markets initiated coverage of Greenwich LifeSciences with a rating of Outperform and set a new price target of $45.00

    8/20/25 9:27:20 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    HC Wainwright & Co. initiated coverage on Greenwich LifeSciences with a new price target

    HC Wainwright & Co. initiated coverage of Greenwich LifeSciences with a rating of Buy and set a new price target of $78.00

    9/1/21 6:15:30 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Aegis Capital initiated coverage on Greenwich LifeSciences with a new price target

    Aegis Capital initiated coverage of Greenwich LifeSciences with a rating of Buy and set a new price target of $75.00

    1/27/21 6:00:07 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Aegis Capital initiated coverage on Greenwich LifeSciences with a new price target

    Aegis Capital initiated coverage of Greenwich LifeSciences with a rating of Buy and set a new price target of $75.00

    1/26/21 10:33:29 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    CEO and CFO Patel Snehal bought $53,694 worth of shares (1,800 units at $29.83), increasing direct ownership by 0.03% to 5,604,102 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/15/26 6:05:06 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $79,866 worth of shares (2,900 units at $27.54), increasing direct ownership by 0.05% to 5,602,302 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/14/26 6:05:06 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $91,848 worth of shares (4,300 units at $21.36), increasing direct ownership by 0.08% to 5,599,402 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/5/26 6:06:39 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $63,017 worth of shares (2,900 units at $21.73), increasing direct ownership by 0.05% to 5,595,102 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/2/26 6:05:38 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $51,742 worth of shares (4,100 units at $12.62), increasing direct ownership by 0.07% to 5,592,202 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    12/19/25 6:05:37 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $38,502 worth of shares (4,600 units at $8.37), increasing direct ownership by 0.08% to 5,588,102 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/28/25 6:05:07 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by CEO and CFO Patel Snehal

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/17/25 6:05:39 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $89,358 worth of shares (10,600 units at $8.43), increasing direct ownership by 0.19% to 5,583,502 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/12/25 6:05:18 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $21,298 worth of shares (2,300 units at $9.26), increasing direct ownership by 0.04% to 5,572,902 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/4/25 6:16:15 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $35,568 worth of shares (3,600 units at $9.88), increasing direct ownership by 0.06% to 5,570,602 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    4/29/25 6:14:15 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. Insider Purchases

    Insider purchases reveal critical bullish sentiment about the company from key stakeholders. See them live in this feed.

    View All

    CEO and CFO Patel Snehal bought $53,694 worth of shares (1,800 units at $29.83), increasing direct ownership by 0.03% to 5,604,102 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/15/26 6:05:06 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $79,866 worth of shares (2,900 units at $27.54), increasing direct ownership by 0.05% to 5,602,302 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/14/26 6:05:06 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $91,848 worth of shares (4,300 units at $21.36), increasing direct ownership by 0.08% to 5,599,402 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/5/26 6:06:39 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $63,017 worth of shares (2,900 units at $21.73), increasing direct ownership by 0.05% to 5,595,102 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    1/2/26 6:05:38 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $51,742 worth of shares (4,100 units at $12.62), increasing direct ownership by 0.07% to 5,592,202 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    12/19/25 6:05:37 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $38,502 worth of shares (4,600 units at $8.37), increasing direct ownership by 0.08% to 5,588,102 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/28/25 6:05:07 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $89,358 worth of shares (10,600 units at $8.43), increasing direct ownership by 0.19% to 5,583,502 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/12/25 6:05:18 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $21,298 worth of shares (2,300 units at $9.26), increasing direct ownership by 0.04% to 5,572,902 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    11/4/25 6:16:15 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $35,568 worth of shares (3,600 units at $9.88), increasing direct ownership by 0.06% to 5,570,602 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    4/29/25 6:14:15 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    CEO and CFO Patel Snehal bought $48,492 worth of shares (5,400 units at $8.98), increasing direct ownership by 0.10% to 5,567,002 units (SEC Form 4)

    4 - Greenwich LifeSciences, Inc. (0001799788) (Issuer)

    4/22/25 6:05:03 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. SEC Filings

    View All

    SEC Form 10-K filed by Greenwich LifeSciences Inc.

    10-K - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    6/1/26 4:56:00 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form NT 10-K filed by Greenwich LifeSciences Inc.

    NT 10-K - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    3/31/26 4:30:23 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. filed SEC Form 8-K: Submission of Matters to a Vote of Security Holders

    8-K - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    12/18/25 4:30:41 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 10-Q filed by Greenwich LifeSciences Inc.

    10-Q - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    11/14/25 4:30:45 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form DEFA14A filed by Greenwich LifeSciences Inc.

    DEFA14A - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    11/3/25 5:09:59 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form DEF 14A filed by Greenwich LifeSciences Inc.

    DEF 14A - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    11/3/25 5:07:08 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. filed SEC Form 8-K: Changes in Registrant's Certifying Accountant, Financial Statements and Exhibits

    8-K - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    7/24/25 4:30:25 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 10-Q filed by Greenwich LifeSciences Inc.

    10-Q - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    5/20/25 4:30:30 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form NT 10-Q filed by Greenwich LifeSciences Inc.

    NT 10-Q - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    5/15/25 4:15:32 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 10-K filed by Greenwich LifeSciences Inc.

    10-K - Greenwich LifeSciences, Inc. (0001799788) (Filer)

    4/15/25 4:30:24 PM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Greenwich LifeSciences Inc. Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    SEC Form SC 13G filed by Greenwich LifeSciences Inc.

    SC 13G - Greenwich LifeSciences, Inc. (0001799788) (Subject)

    6/22/22 11:53:43 AM ET
    $GLSI
    Biotechnology: Pharmaceutical Preparations
    Health Care