Omeros Corp
OMER- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001285819
In the last 90 days, Omeros Corp insiders filed 0 open-market purchases and 6 sales; 171 institutions reported holding it in 13F filings for Q2 2026, worth $343.0M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Omeros Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 151
- +20 vs. Q3 2025
- Shares held
- 33.2M
- +422.9K (+1.3%) vs. Q3 2025
- Total value
- $570.3M
- +$435.7M (+323.9%) vs. Q3 2025
- New holders
- 33
- 61 more added
- Sold out
- 13
- 35 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OMER on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 171 | $343.0M |
| Q1 2026 | 162 | $326.2M |
| Q4 2025 | 151 | $570.3M |
| Q3 2025 | 133 | $134.7M |
| Q2 2025 | 128 | $87.3M |
| Q1 2025 | 137 | $226.7M |
| Q4 2024 | 128 | $262.3M |
| Q3 2024 | 108 | $99.3M |
| Q2 2024 | 104 | $101.4M |
| Q1 2024 | 99 | $87.8M |
| Q4 2023 | 97 | $81.7M |
| Q3 2023 | 100 | $78.9M |
| Q2 2023 | 103 | $142.8M |
| Q1 2023 | 91 | $94.9M |
| Q4 2022 | 98 | $44.4M |
| Q3 2022 | 94 | $64.7M |
| Q2 2022 | 102 | $66.0M |
| Q1 2022 | 129 | $173.2M |
| Q4 2021 | 139 | $202.2M |
| Q3 2021 | 142 | $417.7M |
| Q2 2021 | 152 | $478.4M |
| Q1 2021 | 152 | $618.6M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Omeros Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,062,438 | $86.9M | 0.00% | +610,282+13.7% | Added |
| Vanguard Group Inc | 4,013,315 | $68.9M | 0.00% | +666,357+19.9% | Added |
| Ingalls & Snyder LLC | 3,448,699 | $59.2M | 2.18% | −657,899−16.0% | Reduced |
| UBS Group AG | 2,222,982 | $38.2M | 0.01% | +1,513,893+213.5% | Added |
| Stifel Financial Corp | 1,809,766 | $31.1M | 0.03% | −2,509−0.1% | Reduced |
| Geode Capital Management, LLC | 1,631,350 | $28.0M | 0.00% | +95,979+6.3% | Added |
| State Street Corp | 1,573,526 | $27.0M | 0.00% | +333,798+26.9% | Added |
| Kotler Kevin | 905,635 | $15.6M | 11.49% | +905,635 | New |
| D. E. Shaw & Co., Inc. | 754,999 | $13.0M | 0.01% | −250,236−24.9% | Reduced |
| Susquehanna International Group, LLP | 741,895 | $12.7M | 0.02% | +631,316+570.9% | Added |
| CI Private Wealth, LLC | 688,025 | $11.8M | 0.02% | +79,263+13.0% | Added |
| Nomura Holdings Inc | 655,021 | $11.2M | 0.03% | +611,340+1,399.6% | Added |
| Bank of Montreal | 601,643 | $10.3M | 0.00% | +38,548+6.8% | Added |
| Charles Schwab Investment Management Inc | 593,222 | $10.2M | 0.00% | +39,755+7.2% | Added |
| Northern Trust Corp | 526,732 | $9.05M | 0.00% | −8,963−1.7% | Reduced |
| Two Sigma Investments, LP | 524,757 | $9.01M | 0.01% | −408,557−43.8% | Reduced |
| Royal Bank of Canada | 498,399 | $8.56M | 0.00% | −45,277−8.3% | Reduced |
| Jane Street Group, LLC | 463,622 | $7.96M | 0.01% | +182,535+64.9% | Added |
| Millennium Management LLC | 441,811 | $7.59M | 0.01% | +39,997+10.0% | Added |
| Morgan Stanley | 386,152 | $6.63M | 0.00% | −1,603,582−80.6% | Reduced |
| Badgley Phelps Wealth Managers, LLC | 263,556 | $4.53M | 0.08% | 00.0% | Unchanged |
| Citadel Advisors LLC | 240,352 | $4.13M | 0.00% | −152,876−38.9% | Reduced |
| Jump Financial, LLC | 228,000 | $3.92M | 0.05% | +228,000 | New |
| Goldman Sachs Group Inc | 227,294 | $3.90M | 0.00% | −108,793−32.4% | Reduced |
| EAM Investors, LLC | 207,480 | $3.56M | 0.40% | +207,480 | New |
| Wellington Management Group LLP | 202,617 | $3.48M | 0.00% | +8,170+4.2% | Added |
| Itau Unibanco Holding S.A. | 180,000 | $3.05M | 0.08% | +180,000 | New |
| Bank of New York Mellon Corp | 165,782 | $2.85M | 0.00% | +3,437+2.1% | Added |
| Wells Fargo & Company | 165,280 | $2.84M | 0.00% | +31,176+23.2% | Added |
| Invesco Ltd. | 154,782 | $2.66M | 0.00% | +32,707+26.8% | Added |
| Nuveen, LLC | 153,187 | $2.63M | 0.00% | +65,569+74.8% | Added |
| Clutterbuck Capital Management LLC | 150,000 | $2.58M | 2.20% | +150,000 | New |
| Group One Trading, L.P. | 133,269 | $2.29M | 0.07% | +34,972+35.6% | Added |
| Simplex Trading, LLC | 123,979 | $2.13M | 0.06% | +101,759+458.0% | Added |
| Barclays PLC | 120,490 | $2.07M | 0.00% | −11,458−8.7% | Reduced |
| Ameriprise Financial Inc | 117,004 | $2.01M | 0.00% | +468+0.4% | Added |
| Bank of America Corp | 114,808 | $1.97M | 0.00% | −160,610−58.3% | Reduced |
| Walleye Capital LLC | 109,956 | $1.89M | 0.01% | +95,033+636.8% | Added |
| HighTower Advisors, LLC | 104,059 | $1.79M | 0.00% | +8,875+9.3% | Added |
| Rhumbline Advisers | 100,105 | $1.72M | 0.00% | −5,768−5.4% | Reduced |
| Dimensional Fund Advisors LP | 96,948 | $1.67M | 0.00% | +96,948 | New |
| Price T Rowe Associates Inc | 95,745 | $1.64M | 0.00% | +6,217+6.9% | Added |
| Susquehanna Portfolio Strategies, LLC | 92,759 | $1.59M | 0.02% | −78,329−45.8% | Reduced |
| Quest Partners LLC | 82,597 | $1.42M | 0.08% | +82,596+8,259,600.0% | Added |
| Cambridge Investment Research Advisors, Inc. | 81,643 | $1.40M | 0.00% | +63,424+348.1% | Added |
| MML Investors Services, LLC | 77,875 | $1.34M | 0.00% | +18,700+31.6% | Added |
| Two Sigma Advisers, LP | 76,100 | $1.31M | 0.00% | −502,100−86.8% | Reduced |
| Alliancebernstein L.P. | 73,490 | $1.26M | 0.00% | +5,900+8.7% | Added |
| Walleye Trading LLC | 69,653 | $1.20M | 0.02% | +55,980+409.4% | Added |
| Polar Asset Management Partners Inc. | 68,800 | $1.18M | 0.02% | −1,429,786−95.4% | Reduced |
| Brevan Howard Capital Management LP | 64,957 | $1.12M | 0.02% | −64,436−49.8% | Reduced |
| American Financial Group Inc | 64,113 | $1.10M | 0.40% | 00.0% | Unchanged |
| Verition Fund Management LLC | 63,493 | $1.09M | 0.01% | +63,493 | New |
| Ancora Advisors, LLC | 59,250 | $1.02M | 0.02% | +56,250+1,875.0% | Added |
| Bridgeway Capital Management, LLC | 56,715 | $974.1K | 0.02% | 00.0% | Unchanged |
| Coldstream Capital Management Inc | 53,605 | $920.7K | 0.01% | +27,775+107.5% | Added |
| Mindset Wealth Management, LLC | 52,000 | $893.1K | 0.23% | −8,000−13.3% | Reduced |
| Deutsche Bank AG | 48,694 | $836.6K | 0.00% | +7,891+19.3% | Added |
| Cypress Capital Group | 42,000 | $721.4K | 0.08% | 00.0% | Unchanged |
| Comerica Bank | 38,000 | $652.6K | 0.00% | +3,000+8.6% | Added |
| JPMorgan Chase & Co | 37,191 | $638.8K | 0.00% | −378,962−91.1% | Reduced |
| MetLife Investment Management | 36,200 | $621.7K | 0.00% | +15,696+76.6% | Added |
| Newbridge Financial Services Group, Inc. | 34,310 | $589.3K | 0.09% | −100,200−74.5% | Reduced |
| SEI Investments Co | 31,766 | $545.6K | 0.00% | +18,652+142.2% | Added |
| Colony Group, LLC | 31,034 | $533.0K | 0.00% | +31,034 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 30,585 | $525.3K | 0.00% | +399+1.3% | Added |
| Cerity Partners LLC | 30,450 | $523.0K | 0.00% | +1,750+6.1% | Added |
| Intech Investment Management LLC | 29,967 | $514.7K | 0.00% | +4,324+16.9% | Added |
| Axq Capital, LP | 29,151 | $500.7K | 0.11% | +29,151 | New |
| Citigroup Inc | 27,489 | $472.1K | 0.00% | +21,972+398.3% | Added |
| Man Group plc | 27,099 | $465.4K | 0.00% | +27,099 | New |
| Virtus Investment Advisers, Inc. | 26,212 | $450.2K | 0.12% | +26,212 | New |
| Quantinno Capital Management LP | 25,074 | $430.6K | 0.00% | +6,866+37.7% | Added |
| ADAR1 Capital Management, LLC | 25,000 | $429.4K | 0.03% | +25,000 | New |
| Wealth Enhancement Advisory Services, LLC | 31,728 | $429.3K | 0.00% | +2,631+9.0% | Added |
| Farallon Capital Management, L.L.C. | 23,000 | $395.0K | 0.00% | +23,000 | New |
| Stordahl Capital Management, Inc. | 22,860 | $392.6K | 0.08% | 00.0% | Unchanged |
| AQR Capital Management LLC | 22,838 | $392.2K | 0.00% | +1,532+7.2% | Added |
| Harbour Investments, Inc. | 21,835 | $375.0K | 0.01% | +8,366+62.1% | Added |
| Canada Pension Plan Investment Board | 21,700 | $372.7K | 0.00% | +21,700 | New |
| New York State Common Retirement Fund | 20,713 | $355.7K | 0.00% | +9,300+81.5% | Added |
| Engineers Gate Manager LP | 20,082 | $344.9K | 0.00% | +20,082 | New |
| Manufacturers Life Insurance Company, The | 19,850 | $340.9K | 0.00% | −48−0.2% | Reduced |
| SG Americas Securities, LLC | 18,825 | $323.0K | 0.00% | −26,499−58.5% | Reduced |
| FMR LLC | 18,068 | $310.3K | 0.00% | +4,878+37.0% | Added |
| AlphaCore Capital LLC | 17,647 | $303.1K | 0.01% | +17,647 | New |
| Breakwater Investment Management | 17,048 | $292.8K | 0.11% | 00.0% | Unchanged |
| Creative Planning | 16,916 | $290.5K | 0.00% | +16,916 | New |
| China Universal Asset Management Co., Ltd. | 16,553 | $284.3K | 0.02% | −5,376−24.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 16,360 | $281.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 16,351 | $280.8K | 0.00% | −71,766−81.4% | Reduced |
| ProShare Advisors LLC | 15,171 | $260.6K | 0.00% | +1,637+12.1% | Added |
| Profund Advisors LLC | 14,330 | $246.1K | 0.01% | +14,330 | New |
| Apella Capital, LLC | 14,288 | $245.4K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 14,014 | $240.7K | 0.00% | +3,319+31.0% | Added |
| Los Angeles Capital Management LLC | 30,920 | $232.5K | 0.00% | +30,920 | New |
| Graham Capital Management, L.P. | 13,222 | $227.1K | 0.01% | −21,237−61.6% | Reduced |
| Avantax Planning Partners, Inc. | 13,200 | $226.7K | 0.01% | +3,100+30.7% | Added |
| Schonfeld Strategic Advisors LLC | 12,667 | $217.6K | 0.00% | +12,667 | New |
| Raymond James Financial Inc | 12,242 | $210.3K | 0.00% | +12,242 | New |