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OMEROS CORP (OMER) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:OMER - US6821431029 - Common Stock

9.45 USD
-0.31 (-3.18%)
Last: 11/25/2025, 8:05:28 PM
9.71 USD
+0.26 (+2.75%)
Pre-Market: 11/26/2025, 7:18:55 AM
OMER Ownership Chart.OMER Ownership Chart: showing Insider, Institutional ownership and shares available to the public.OMER Ownership.InsiderInstitutionalPublic



Shares Outstanding68.06M
Float66.08M
Float Short Interest Percentage18.39%
Owners (insider)3.76%
Owners (institutional)42.74%
Owners (insider) change-29.99%
Owners (institutional) change12.65%
OMER Institutional Ownership HistoryOMER Institutional Ownership HistoryOMER Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M
OMER Historical Insider Transactions ChartOMER Historical Insider Buy and Sell Transactions ChartOMER 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 13, 2025 Demopulos Gregory A MD Other Disposition 1200000 0.00 $ 0.00