Institutional shares held 27 Million
959K calls
732K puts
Total value of holdings $189M
$6.72M calls
$5.13M puts
Market Cap $440M
62,730,000 Shares Out.
Institutional ownership 43.06%
# of Institutions 147


Latest Institutional Activity in OMER

Top Purchases

Q1 2025
Wealth Enhancement Advisory Services, LLC Shares Held: 70.4K ($493K)
Q1 2025
Sowell Financial Services LLC Shares Held: 10.8K ($75.4K)
Q1 2025
Sg Americas Securities, LLC Shares Held: 28.8K ($202K)
Q1 2025
Brighton Jones LLC Shares Held: 30.7K ($215K)
Q1 2025
Parallel Advisors, LLC Shares Held: 2K ($14K)

Top Sells

Q1 2025
Gamma Investing LLC Shares Held: 905 ($6.34K)
Q1 2025
China Universal Asset Management Co., Ltd. Shares Held: 11.6K ($81.5K)
Q1 2025
Rhumbline Advisers Shares Held: 108K ($754K)
Q1 2025
Cerity Partners LLC Shares Held: 28.7K ($201K)
Q4 2024
Ingalls & Snyder LLC Shares Held: 4.01M ($28.1M)

About OMER

Omeros Corporation, a commercial-stage biopharmaceutical company, discovers, develops, and commercializes small-molecule and protein therapeutics, and orphan indications targeting inflammation, complement-mediated diseases, cancers related to dysfunction of the immune system, and addictive and compulsive disorders. The company's clinical programs include Narsoplimab (OMS721/MASP-2) that has completed pivotal studies for hematopoietic stem-cell transplant-associated thrombotic microangiopathy (HSCT-TMA); that is in Phase III clinical trial for immunoglobulin A nephropathy (IgAN) and atypical hemolytic uremic syndrome (aHUS); and Phase II clinical trial to treat COVID-19. Its clinical programs also consist of PPAR? (OMS405) that is in Phase II to treat opioid and nicotine addiction; PDE7 (OMS527), which is in Phase I trial for treating addiction and compulsive disorders, and movement disorders; and MASP-3 (OMS906) that is in Phase I trial for paroxysmal nocturnal hemoglobinuria (PNH) and other alternative pathway disorders. The company's preclinical programs comprise MASP-2-small-molecule inhibitors used for the treatment of aHUS, IgAN, HSCT-TMA, and age-related macular degeneration; longer-acting second generation antibody targeting MASP-2; and MASP-3-small-molecule inhibitors to treat PNH and other alternative pathway disorders. Its preclinical programs also include GPR174 Inhibitors and Chimeric Antigen Receptor (CAR) T-Cell and Adoptive T-Cell Therapies for various cancers; and G protein-coupled receptor targets for treating immunologic, immuno-oncologic, metabolic, CNS, cardiovascular, musculoskeletal, and other disorders. The company was incorporated in 1994 and is headquartered in Seattle, Washington.


Insider Transactions at OMER

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Last 12 Months Summary

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From 0 Insiders
Sell / Disposition
0 Shares
From 0 Insiders

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E - Expiration of short derivative position×
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W - Acquisition or disposition by will or laws×
Z - Deposit into or withdrawal from voting trust×
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U - Disposition due to a tender of shares in a change of control transaction×
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