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, 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
- 171
- +10 vs. Q1 2026
- Shares held
- 36.1M
- +5.21M (+16.9%) vs. Q1 2026
- Total value
- $343.0M
- +$16.8M (+5.2%) vs. Q1 2026
- New holders
- 35
- 68 more added
- Sold out
- 25
- 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 | 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, 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 |
|---|---|---|---|---|---|
| Cerity Partners LLC | 37,188 | $353.7K | 0.00% | +5,602+17.7% | Added |
| 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 |
| Fifth Third Bancorp | 39,000 | $370.9K | 0.00% | 00.0% | Unchanged |
| International Assets Investment Management, LLC | 40,400 | $380.2K | 0.02% | +34,600+596.6% | Added |
| Susquehanna Portfolio Strategies, LLC | 41,755 | $397.1K | 0.01% | −51,004−55.0% | Reduced |
| Prudential Financial Inc | 42,385 | $403.1K | 0.00% | +29,480+228.4% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 42,841 | $407.4K | 0.00% | +42,048+5,302.4% | Added |
| MetLife Investment Management | 43,510 | $413.8K | 0.00% | +4,876+12.6% | Added |
| JPMorgan Chase & Co | 42,247 | $418.7K | 0.00% | +527+1.3% | Added |
| Legal & General Group Plc | 44,686 | $425.0K | 0.00% | +38,618+636.4% | Added |
| Headlands Technologies LLC | 45,401 | $431.8K | 0.05% | −4,525−9.1% | Reduced |
| Newbridge Financial Services Group, Inc. | 46,210 | $439.5K | 0.05% | −1,500−3.1% | Reduced |
| Barclays PLC | 47,157 | $448.5K | 0.00% | +2,235+5.0% | Added |
| Vanguard Asset Management, Ltd | 47,769 | $454.3K | 0.00% | +47,769 | New |
| UBS Asset Management Americas Inc | 53,362 | $507.5K | 0.00% | +52,815+9,655.4% | Added |
| Squarepoint Ops LLC | 55,030 | $523.3K | 0.00% | +55,030 | New |
| Vanguard Global Advisers, LLC | 56,019 | $532.7K | 0.00% | +14,898+36.2% | Added |
| Group One Trading, L.P. | 58,697 | $558.2K | 0.02% | +20,093+52.0% | Added |
| State of Wisconsin Investment Board | 60,339 | $573.8K | 0.00% | +48,540+411.4% | Added |
| American Financial Group Inc | 64,113 | $609.7K | 0.21% | 00.0% | Unchanged |
| Mindset Wealth Management, LLC | 70,600 | $671.4K | 0.13% | +11,100+18.7% | Added |
| Citigroup Inc | 72,829 | $692.6K | 0.00% | +42,039+136.5% | Added |
| Alliancebernstein L.P. | 66,990 | $707.4K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 75,053 | $713.8K | 0.00% | +20,023+36.4% | Added |
| California State Teachers Retirement System | 75,730 | $720.2K | 0.00% | +71,978+1,918.4% | Added |
| Jupiter Asset Management Ltd | 76,186 | $724.5K | 0.00% | +76,186 | New |
| Balyasny Asset Management LLC | 83,558 | $794.6K | 0.00% | +54,475+187.3% | Added |
| Quantinno Capital Management LP | 83,786 | $796.8K | 0.00% | +22,245+36.1% | Added |
| Coldstream Capital Management Inc | 84,743 | $805.9K | 0.01% | +30,613+56.6% | Added |
| Citadel Advisors LLC | 85,594 | $814.0K | 0.00% | −174,454−67.1% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 92,403 | $879.0K | 0.00% | +3,835+4.3% | Added |
| Brevan Howard Capital Management LP | 98,047 | $932.4K | 0.01% | +46,884+91.6% | Added |
| Rhumbline Advisers | 110,271 | $1.05M | 0.00% | +7,453+7.2% | Added |
| HighTower Advisors, LLC | 115,368 | $1.10M | 0.00% | +4,738+4.3% | Added |
| Ameriprise Financial Inc | 117,456 | $1.12M | 0.00% | −492−0.4% | Reduced |
| MML Investors Services, LLC | 118,175 | $1.12M | 0.00% | +60,500+104.9% | Added |
| Price T Rowe Associates Inc | 129,550 | $1.23M | 0.00% | +22,257+20.7% | Added |
| Caption Management, LLC | 130,000 | $1.24M | 0.04% | +130,000 | New |
| Virtus Investment Advisers, Inc. | 133,129 | $1.27M | 0.29% | +106,264+395.5% | Added |
| Swiss National Bank | 137,300 | $1.31M | 0.00% | +137,300 | New |
| Wells Fargo & Company | 156,889 | $1.49M | 0.00% | +38,546+32.6% | Added |
| Goldman Sachs Group Inc | 157,008 | $1.49M | 0.00% | −45,885−22.6% | Reduced |
| Ancora Advisors, LLC | 168,750 | $1.60M | 0.03% | +53,750+46.7% | Added |
| Nuveen, LLC | 169,952 | $1.62M | 0.00% | +15,751+10.2% | Added |
| Bank of America Corp | 194,140 | $1.85M | 0.00% | −10,665−5.2% | Reduced |
| Bank of New York Mellon Corp | 195,990 | $1.86M | 0.00% | +29,744+17.9% | Added |
| Wellington Management Group LLP | 204,541 | $1.95M | 0.00% | +17,241+9.2% | Added |
| Badgley Phelps Wealth Managers, LLC | 263,556 | $2.51M | 0.04% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 325,194 | $3.09M | 0.00% | −159,836−33.0% | Reduced |
| Millennium Management LLC | 343,839 | $3.27M | 0.00% | −66,770−16.3% | Reduced |
| Morgan Stanley | 394,459 | $3.75M | 0.00% | +76,567+24.1% | Added |
| Two Sigma Investments, LP | 402,662 | $3.83M | 0.00% | +116,188+40.6% | Added |
| Clutterbuck Capital Management LLC | 450,000 | $4.28M | 2.46% | +150,000+50.0% | Added |
| Federated Hermes, Inc. | 478,290 | $4.55M | 0.01% | +478,290 | New |
| Vanguard Fiduciary Trust Co | 491,173 | $4.67M | 0.00% | −1,172−0.2% | Reduced |
| Bank of Montreal | 568,424 | $5.41M | 0.00% | −20.0% | Reduced |
| Charles Schwab Investment Management Inc | 604,633 | $5.75M | 0.00% | +22,121+3.8% | Added |
| Rubric Capital Management LP | 656,874 | $6.25M | 0.06% | +656,874 | New |
| CI Private Wealth, LLC | 659,730 | $6.27M | 0.01% | −141,681−17.7% | Reduced |
| Rock Springs Capital Management LP | 718,499 | $6.83M | 0.33% | +718,499 | New |
| Northern Trust Corp | 727,348 | $6.92M | 0.00% | +163,481+29.0% | Added |
| Invesco Ltd. | 751,771 | $7.15M | 0.00% | +571,142+316.2% | Added |
| Vanguard Portfolio Management LLC | 962,828 | $9.16M | 0.00% | +244,153+34.0% | Added |
| Stifel Financial Corp | 1,836,925 | $17.5M | 0.01% | +5,340+0.3% | Added |
| Geode Capital Management, LLC | 1,914,460 | $18.2M | 0.00% | +162,137+9.3% | Added |
| State Street Corp | 2,319,906 | $22.1M | 0.00% | +400,331+20.9% | Added |
| Vanguard Capital Management LLC | 3,072,050 | $29.2M | 0.00% | +88,791+3.0% | Added |
| UBS Group AG | 3,148,384 | $29.9M | 0.00% | +807,653+34.5% | Added |
| Ingalls & Snyder LLC | 3,659,523 | $34.8M | 0.95% | +100,100+2.8% | Added |
| BlackRock, Inc. | 6,044,633 | $57.5M | 0.00% | +735,007+13.8% | Added |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −195,824−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −179,594−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −174,800−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −83,682−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −71,168−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −38,237−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −32,778−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −28,450−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −23,967−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −23,000−100.0% | Sold out |
| Wealth Enhancement Advisory Services, LLC | 0 | $0 | 0.00% | −17,475−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −15,251−100.0% | Sold out |
| nVerses Capital, LLC | 0 | $0 | 0.00% | −14,404−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −13,900−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −10,634−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −10,276−100.0% | Sold out |
| Leonteq Securities AG | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,430−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −3,650−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −45−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| Keating Financial Advisory Services, Inc. | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Transamerica Financial Advisors, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |