OMEROS CORP (OMER) Stock Ownership

NASDAQ:OMER • US6821431029

11.64 USD
-0.34 (-2.84%)
At close: Mar 3, 2026
11.72 USD
+0.08 (+0.69%)
Pre-Market: 3/4/2026, 8:00:55 AM
Overview Stock Chart Technical Analysis Fundamental Analysis Forecast Earnings Financials Ownership News
OMER Ownership Chart.OMER Ownership Chart: showing Insider, Institutional ownership and shares available to the public.OMER Ownership.InsiderInstitutionalPublic



Shares Outstanding70.90M
Float68.90M
Float Short Interest Percentage26.05%
Owners (insider)2.77%
Owners (institutional)46.66%
Owners (insider) change-29.19%
Owners (institutional) change1.01%
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 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 0 -200K -400K -600K -800K -1M
Date Name Type Shares Price Amount
Feb 18, 2026 Demopulos Gregory A MD Option Excercise 400000 10.27 $ 4,108,000.00
Feb 18, 2026 Demopulos Gregory A MD Option Excercise 357678 11.93 $ 4,267,098.54
Jan 13, 2026 Borges David J. Option Excercise 30000 3.06 $ 91,800.00
Jan 12, 2026 Borges David J. Open Market Sale 60000 12.52 $ 750,915.00
Oct 13, 2025 Demopulos Gregory A MD Other Disposition 1200000 0.00 $ 0.00