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, Q3 2025
Institutional positions in Omeros Corp as of Sep 30, 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
- 133
- +5 vs. Q2 2025
- Shares held
- 32.9M
- +3.74M (+12.9%) vs. Q2 2025
- Total value
- $134.7M
- +$47.4M (+54.3%) vs. Q2 2025
- New holders
- 14
- 59 more added
- Sold out
- 9
- 30 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Omeros Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Barclays PLC | 131,948 | $541.0K | 0.00% | +7,117+5.7% | Added |
| Wells Fargo & Company | 134,104 | $549.8K | 0.00% | +11,717+9.6% | Added |
| Newbridge Financial Services Group, Inc. | 134,510 | $551.5K | 0.08% | +41,090+44.0% | Added |
| Squarepoint Ops LLC | 155,496 | $637.5K | 0.00% | +67,021+75.8% | Added |
| Bank of New York Mellon Corp | 162,345 | $665.6K | 0.00% | +14,463+9.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 171,088 | $701.5K | 0.01% | +29,030+20.4% | Added |
| Wellington Management Group LLP | 194,447 | $797.2K | 0.00% | +31,034+19.0% | Added |
| Badgley Phelps Wealth Managers, LLC | 263,556 | $1.08M | 0.02% | +142,118+117.0% | Added |
| Bank of America Corp | 275,418 | $1.13M | 0.00% | +24,459+9.7% | Added |
| Jane Street Group, LLC | 281,087 | $1.15M | 0.00% | +195,705+229.2% | Added |
| Goldman Sachs Group Inc | 336,087 | $1.38M | 0.00% | +82,123+32.3% | Added |
| Renaissance Technologies LLC | 344,500 | $1.41M | 0.00% | −38,200−10.0% | Reduced |
| Citadel Advisors LLC | 393,228 | $1.61M | 0.00% | +235,518+149.3% | Added |
| Millennium Management LLC | 401,814 | $1.65M | 0.00% | +132,393+49.1% | Added |
| JPMorgan Chase & Co | 416,153 | $1.71M | 0.00% | +384,168+1,201.1% | Added |
| Marshall Wace, LLP | 464,178 | $1.90M | 0.00% | −277,198−37.4% | Reduced |
| Northern Trust Corp | 535,695 | $2.20M | 0.00% | +50,927+10.5% | Added |
| Royal Bank of Canada | 543,676 | $2.23M | 0.00% | +39,608+7.9% | Added |
| Charles Schwab Investment Management Inc | 553,467 | $2.27M | 0.00% | +73,788+15.4% | Added |
| Bank of Montreal | 563,095 | $2.31M | 0.00% | −8,000−1.4% | Reduced |
| Two Sigma Advisers, LP | 578,200 | $2.37M | 0.00% | +155,400+36.8% | Added |
| CI Private Wealth, LLC | 608,762 | $2.50M | 0.00% | +78,148+14.7% | Added |
| UBS Group AG | 709,089 | $2.91M | 0.00% | −159,411−18.4% | Reduced |
| Two Sigma Investments, LP | 933,314 | $3.83M | 0.01% | +263,095+39.3% | Added |
| D. E. Shaw & Co., Inc. | 1,005,235 | $4.12M | 0.00% | −642,191−39.0% | Reduced |
| State Street Corp | 1,239,728 | $5.08M | 0.00% | +39,602+3.3% | Added |
| Polar Asset Management Partners Inc. | 1,498,586 | $6.14M | 0.12% | +1,498,586 | New |
| Geode Capital Management, LLC | 1,535,371 | $6.30M | 0.00% | +165,500+12.1% | Added |
| Stifel Financial Corp | 1,812,275 | $7.43M | 0.01% | +289,385+19.0% | Added |
| Morgan Stanley | 1,989,734 | $8.16M | 0.00% | +634,175+46.8% | Added |
| Vanguard Group Inc | 3,346,958 | $13.7M | 0.00% | +63,381+1.9% | Added |
| Ingalls & Snyder LLC | 4,106,598 | $16.8M | 0.55% | +123,685+3.1% | Added |
| BlackRock, Inc. | 4,452,156 | $18.3M | 0.00% | +401,183+9.9% | Added |
| XTX Topco Ltd | 0 | $0 | 0.00% | −63,777−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −38,967−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −35,515−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −17,430−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −11,181−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −9,781−100.0% | Sold out |
| CBIZ Investment Advisory Services, LLC | 0 | $0 | 0.00% | −300−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −104−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −31−100.0% | Sold out |