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; 175 institutions reported holding it in 13F filings for Q2 2026, worth $450.9M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Omeros Corp as of Jun 30, 2026. 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
- 175
- +11 vs. Q1 2026
- Shares held
- 40.3M
- +5.31M (+15.2%) vs. Q1 2026
- Total value
- $450.9M
- −$17.4M (−3.7%) vs. Q1 2026
- New holders
- 35
- 68 more added
- Sold out
- 24
- 42 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | 175 | $450.9M |
| Q1 2026 | 165 | $468.3M |
| Q4 2025 | 155 | $790.9M |
| Q3 2025 | 137 | $185.1M |
| Q2 2025 | 132 | $132.0M |
| Q1 2025 | 137 | $226.8M |
| Q4 2024 | 128 | $262.3M |
| Q3 2024 | 108 | $99.4M |
| Q2 2024 | 104 | $101.5M |
| Q1 2024 | 99 | $89.4M |
| Q4 2023 | 97 | $82.7M |
| 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 | $69.3M |
| Q1 2022 | 129 | $173.3M |
| Q4 2021 | 139 | $204.6M |
| Q3 2021 | 142 | $417.7M |
| Q2 2021 | 152 | $478.4M |
| Q1 2021 | 152 | $618.6M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Omeros Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,044,633 | $57.5M | 0.00% | +735,007+13.8% | Added |
| Ingalls & Snyder LLC | 3,659,523 | $34.8M | 0.95% | +100,100+2.8% | Added |
| D. E. Shaw & Co., Inc. | – | $34.7M | 0.02% | – | – |
| UBS Group AG | 3,148,384 | $29.9M | 0.00% | +807,653+34.5% | Added |
| Vanguard Capital Management LLC | 3,072,050 | $29.2M | 0.00% | +88,791+3.0% | Added |
| State Street Corp | 2,319,906 | $22.1M | 0.00% | +400,331+20.9% | Added |
| DeepCurrents Investment Group LLC | 19,971 | $18.6M | 0.64% | +7,841+64.6% | Added |
| Geode Capital Management, LLC | 1,914,460 | $18.2M | 0.00% | +162,137+9.3% | Added |
| Whitebox Advisors LLC | – | $17.7M | 0.29% | – | – |
| Stifel Financial Corp | 1,836,925 | $17.5M | 0.01% | +5,340+0.3% | Added |
| Context Capital Management, LLC | – | $16.3M | 0.33% | – | – |
| Affinity Asset Advisors, LLC | – | $12.2M | 0.60% | – | – |
| Clutterbuck Capital Management LLC | 4,619,000 | $12.0M | 6.92% | +150,000+3.4% | Added |
| Vanguard Portfolio Management LLC | 962,828 | $9.16M | 0.00% | +244,153+34.0% | Added |
| Invesco Ltd. | 751,771 | $7.15M | 0.00% | +571,142+316.2% | Added |
| Northern Trust Corp | 727,348 | $6.92M | 0.00% | +163,481+29.0% | Added |
| Rock Springs Capital Management LP | 718,499 | $6.83M | 0.33% | +718,499 | New |
| CI Private Wealth, LLC | 659,730 | $6.27M | 0.01% | −141,681−17.7% | Reduced |
| Rubric Capital Management LP | 656,874 | $6.25M | 0.06% | +656,874 | New |
| Charles Schwab Investment Management Inc | 604,633 | $5.75M | 0.00% | +22,121+3.8% | Added |
| Bank of Montreal | 568,424 | $5.41M | 0.00% | −20.0% | Reduced |
| Vanguard Fiduciary Trust Co | 491,173 | $4.67M | 0.00% | −1,172−0.2% | Reduced |
| Federated Hermes, Inc. | 478,290 | $4.55M | 0.01% | +478,290 | New |
| Two Sigma Investments, LP | 402,662 | $3.83M | 0.00% | +116,188+40.6% | Added |
| Morgan Stanley | 394,459 | $3.75M | 0.00% | +76,567+24.1% | Added |
| Millennium Management LLC | 343,839 | $3.27M | 0.00% | −66,770−16.3% | Reduced |
| Susquehanna International Group, LLP | 325,194 | $3.09M | 0.00% | −159,836−33.0% | Reduced |
| Badgley Phelps Wealth Managers, LLC | 263,556 | $2.51M | 0.04% | 00.0% | Unchanged |
| Wellington Management Group LLP | 204,541 | $1.95M | 0.00% | +17,241+9.2% | Added |
| Bank of New York Mellon Corp | 195,990 | $1.86M | 0.00% | +29,744+17.9% | Added |
| Bank of America Corp | 194,140 | $1.85M | 0.00% | −10,665−5.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 184,806 | $1.76M | 0.00% | +96,238+108.7% | Added |
| Nuveen, LLC | 169,952 | $1.62M | 0.00% | +15,751+10.2% | Added |
| Ancora Advisors, LLC | 168,750 | $1.60M | 0.03% | +53,750+46.7% | Added |
| Goldman Sachs Group Inc | 157,008 | $1.49M | 0.00% | −45,885−22.6% | Reduced |
| Wells Fargo & Company | 156,889 | $1.49M | 0.00% | +38,546+32.6% | Added |
| Swiss National Bank | 137,300 | $1.31M | 0.00% | +137,300 | New |
| Virtus Investment Advisers, Inc. | 133,129 | $1.27M | 0.29% | +106,264+395.5% | Added |
| Caption Management, LLC | 130,000 | $1.24M | 0.04% | +130,000 | New |
| Price T Rowe Associates Inc | 129,550 | $1.23M | 0.00% | +22,257+20.7% | Added |
| MML Investors Services, LLC | 118,175 | $1.12M | 0.00% | +60,500+104.9% | Added |
| Ameriprise Financial Inc | 117,456 | $1.12M | 0.00% | −492−0.4% | Reduced |
| HighTower Advisors, LLC | 115,368 | $1.10M | 0.00% | +4,738+4.3% | Added |
| Rhumbline Advisers | 110,271 | $1.05M | 0.00% | +7,453+7.2% | Added |
| Brevan Howard Capital Management LP | 98,047 | $932.4K | 0.01% | +46,884+91.6% | Added |
| Citadel Advisors LLC | 85,594 | $814.0K | 0.00% | −174,454−67.1% | Reduced |
| Coldstream Capital Management Inc | 84,743 | $805.9K | 0.01% | +30,613+56.6% | Added |
| Quantinno Capital Management LP | 83,786 | $796.8K | 0.00% | +22,245+36.1% | Added |
| Balyasny Asset Management LLC | 83,558 | $794.6K | 0.00% | +54,475+187.3% | Added |
| Jupiter Asset Management Ltd | 76,186 | $724.5K | 0.00% | +76,186 | New |
| California State Teachers Retirement System | 75,730 | $720.2K | 0.00% | +71,978+1,918.4% | Added |
| Deutsche Bank AG | 75,053 | $713.8K | 0.00% | +20,023+36.4% | Added |
| Alliancebernstein L.P. | 66,990 | $707.4K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 72,829 | $692.6K | 0.00% | +42,039+136.5% | Added |
| Mindset Wealth Management, LLC | 70,600 | $671.4K | 0.13% | +11,100+18.7% | Added |
| American Financial Group Inc | 64,113 | $609.7K | 0.21% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 60,339 | $573.8K | 0.00% | +48,540+411.4% | Added |
| Group One Trading, L.P. | 58,697 | $558.2K | 0.02% | +20,093+52.0% | Added |
| Vanguard Global Advisers, LLC | 56,019 | $532.7K | 0.00% | +14,898+36.2% | Added |
| Squarepoint Ops LLC | 55,030 | $523.3K | 0.00% | +55,030 | New |
| UBS Asset Management Americas Inc | 53,362 | $507.5K | 0.00% | +52,815+9,655.4% | Added |
| Vanguard Asset Management, Ltd | 47,769 | $454.3K | 0.00% | +47,769 | New |
| Barclays PLC | 47,157 | $448.5K | 0.00% | +2,235+5.0% | Added |
| Newbridge Financial Services Group, Inc. | 46,210 | $439.5K | 0.05% | −1,500−3.1% | Reduced |
| Headlands Technologies LLC | 45,401 | $431.8K | 0.05% | −4,525−9.1% | Reduced |
| Legal & General Group Plc | 44,686 | $425.0K | 0.00% | +38,618+636.4% | Added |
| JPMorgan Chase & Co | 42,247 | $418.7K | 0.00% | +527+1.3% | Added |
| MetLife Investment Management | 43,510 | $413.8K | 0.00% | +4,876+12.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 42,841 | $407.4K | 0.00% | +42,048+5,302.4% | Added |
| Prudential Financial Inc | 42,385 | $403.1K | 0.00% | +29,480+228.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 41,755 | $397.1K | 0.01% | −51,004−55.0% | Reduced |
| International Assets Investment Management, LLC | 40,400 | $380.2K | 0.02% | +34,600+596.6% | Added |
| Fifth Third Bancorp | 39,000 | $370.9K | 0.00% | 00.0% | Unchanged |
| Optimize Financial Inc | 38,274 | $364.0K | 0.13% | −133−0.3% | Reduced |
| Sound Capital Solutions LLC | 38,274 | $364.0K | 0.09% | +38,274 | New |
| Cerity Partners LLC | 37,188 | $353.7K | 0.00% | +5,602+17.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 33,217 | $315.9K | 0.00% | +1,516+4.8% | Added |
| LPL Financial LLC | 33,033 | $314.1K | 0.00% | +13,425+68.5% | Added |
| Diametric Capital, LP | 33,010 | $313.9K | 0.03% | +3,688+12.6% | Added |
| Compass Financial Management LLC | 32,815 | $312.1K | 0.04% | +32,815 | New |
| Colony Group, LLC | 31,723 | $301.7K | 0.00% | −15,859−33.3% | Reduced |
| Brighton Jones LLC | 31,597 | $300.5K | 0.01% | −283−0.9% | Reduced |
| Avantax Planning Partners, Inc. | 31,100 | $295.8K | 0.01% | +10,000+47.4% | Added |
| Jupiter Topco LLC | 30,500 | $290.2K | 0.00% | +30,500 | New |
| Russell Investments Group, Ltd. | 30,282 | $288.0K | 0.00% | +16,284+116.3% | Added |
| AQR Capital Management LLC | 29,726 | $282.7K | 0.00% | −452−1.5% | Reduced |
| Bridgeway Capital Management, LLC | 27,000 | $256.8K | 0.00% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 26,840 | $255.2K | 0.00% | −153−0.6% | Reduced |
| Profund Advisors LLC | 26,319 | $250.3K | 0.01% | +5,672+27.5% | Added |
| Atom Investors LP | 23,945 | $227.7K | 0.02% | +23,945 | New |
| Creative Planning | 23,282 | $221.4K | 0.00% | +2,235+10.6% | Added |
| Axq Capital, LP | 23,246 | $221.1K | 0.02% | −15,569−40.1% | Reduced |
| Harbour Investments, Inc. | 23,139 | $220.1K | 0.00% | +1,114+5.1% | Added |
| Stordahl Capital Management, Inc. | 22,860 | $217.4K | 0.04% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 22,115 | $210.3K | 0.00% | +22,115 | New |
| Intech Investment Management LLC | 21,869 | $208.0K | 0.00% | +3,593+19.7% | Added |
| New York State Common Retirement Fund | 20,713 | $197.0K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 20,166 | $191.8K | 0.00% | −125,141−86.1% | Reduced |
| Rafferty Asset Management, LLC | 19,474 | $185.2K | 0.00% | +7,176+58.4% | Added |
| Police & Firemen's Retirement System of New Jersey | 19,265 | $183.2K | 0.00% | +2,905+17.8% | Added |