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GOSSAMER BIO INC (GOSS) Stock Ownership and Short Interest

USA - NASDAQ:GOSS - US38341P1021 - Common Stock

2.3 USD
-0.09 (-3.77%)
Last: 11/4/2025, 8:00:02 PM
2.28 USD
-0.02 (-0.87%)
Pre-Market: 11/5/2025, 5:22:46 AM
GOSS Ownership Chart.GOSS Ownership Chart: showing Insider, Institutional ownership and shares available to the public.GOSS Ownership.InsiderInstitutionalPublic



Shares Outstanding229.88M
Float220.80M
Float Short Interest Percentage12.12%
Owners (insider)0.77%
Owners (institutional)78.19%
Owners (insider) change7.57%
Owners (institutional) change0.19%
GOSS Institutional Ownership HistoryGOSS Institutional Ownership HistoryGOSS Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M 200M
GOSS Historical Insider Transactions ChartGOSS Historical Insider Buy and Sell Transactions ChartGOSS Historical Insider Transactions Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 200K 400K 600K 800K 1M
Date Name Type Shares Price Amount
Oct 1, 2025 Smith Robert Paul JR Grant 162500 0.00 $ 0.00
Oct 1, 2025 Aranda Richard Grant 162500 0.00 $ 0.00
Oct 1, 2025 Christian Waage Grant 125000 0.00 $ 0.00
Oct 1, 2025 Giraudo Bryan Grant 181250 0.00 $ 0.00
Oct 1, 2025 Hasnain Faheem Grant 437500 0.00 $ 0.00
Oct 1, 2025 Peterson Caryn Grant 125000 0.00 $ 0.00
Aug 19, 2025 Milligan Sandra Open Market Purchase 26050 1.92 $ 50,016.00