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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,452,156 | $18.3M | 0.00% | +401,183+9.9% | Added |
| Ingalls & Snyder LLC | 4,106,598 | $16.8M | 0.55% | +123,685+3.1% | Added |
| Vanguard Group Inc | 3,346,958 | $13.7M | 0.00% | +63,381+1.9% | Added |
| Morgan Stanley | 1,989,734 | $8.16M | 0.00% | +634,175+46.8% | Added |
| Stifel Financial Corp | 1,812,275 | $7.43M | 0.01% | +289,385+19.0% | Added |
| Geode Capital Management, LLC | 1,535,371 | $6.30M | 0.00% | +165,500+12.1% | Added |
| Polar Asset Management Partners Inc. | 1,498,586 | $6.14M | 0.12% | +1,498,586 | New |
| State Street Corp | 1,239,728 | $5.08M | 0.00% | +39,602+3.3% | Added |
| D. E. Shaw & Co., Inc. | 1,005,235 | $4.12M | 0.00% | −642,191−39.0% | Reduced |
| Two Sigma Investments, LP | 933,314 | $3.83M | 0.01% | +263,095+39.3% | Added |
| UBS Group AG | 709,089 | $2.91M | 0.00% | −159,411−18.4% | Reduced |
| CI Private Wealth, LLC | 608,762 | $2.50M | 0.00% | +78,148+14.7% | Added |
| Two Sigma Advisers, LP | 578,200 | $2.37M | 0.00% | +155,400+36.8% | Added |
| Bank of Montreal | 563,095 | $2.31M | 0.00% | −8,000−1.4% | Reduced |
| Charles Schwab Investment Management Inc | 553,467 | $2.27M | 0.00% | +73,788+15.4% | Added |
| Royal Bank of Canada | 543,676 | $2.23M | 0.00% | +39,608+7.9% | Added |
| Northern Trust Corp | 535,695 | $2.20M | 0.00% | +50,927+10.5% | Added |
| Marshall Wace, LLP | 464,178 | $1.90M | 0.00% | −277,198−37.4% | Reduced |
| JPMorgan Chase & Co | 416,153 | $1.71M | 0.00% | +384,168+1,201.1% | Added |
| Millennium Management LLC | 401,814 | $1.65M | 0.00% | +132,393+49.1% | Added |
| Citadel Advisors LLC | 393,228 | $1.61M | 0.00% | +235,518+149.3% | Added |
| Renaissance Technologies LLC | 344,500 | $1.41M | 0.00% | −38,200−10.0% | Reduced |
| Goldman Sachs Group Inc | 336,087 | $1.38M | 0.00% | +82,123+32.3% | Added |
| Jane Street Group, LLC | 281,087 | $1.15M | 0.00% | +195,705+229.2% | Added |
| Bank of America Corp | 275,418 | $1.13M | 0.00% | +24,459+9.7% | Added |
| Badgley Phelps Wealth Managers, LLC | 263,556 | $1.08M | 0.02% | +142,118+117.0% | Added |
| Wellington Management Group LLP | 194,447 | $797.2K | 0.00% | +31,034+19.0% | Added |
| Susquehanna Portfolio Strategies, LLC | 171,088 | $701.5K | 0.01% | +29,030+20.4% | Added |
| Bank of New York Mellon Corp | 162,345 | $665.6K | 0.00% | +14,463+9.8% | Added |
| Squarepoint Ops LLC | 155,496 | $637.5K | 0.00% | +67,021+75.8% | Added |
| Newbridge Financial Services Group, Inc. | 134,510 | $551.5K | 0.08% | +41,090+44.0% | Added |
| Wells Fargo & Company | 134,104 | $549.8K | 0.00% | +11,717+9.6% | Added |
| Barclays PLC | 131,948 | $541.0K | 0.00% | +7,117+5.7% | Added |
| Brevan Howard Capital Management LP | 129,393 | $530.5K | 0.01% | +24,094+22.9% | Added |
| Invesco Ltd. | 122,075 | $500.5K | 0.00% | +5,387+4.6% | Added |
| DeepCurrents Investment Group LLC | 120,918 | $495.8K | 0.02% | −407,211−77.1% | Reduced |
| Ameriprise Financial Inc | 116,536 | $477.8K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 110,579 | $453.4K | 0.00% | −5,547−4.8% | Reduced |
| Rhumbline Advisers | 105,873 | $434.1K | 0.00% | +7,048+7.1% | Added |
| Group One Trading, L.P. | 98,297 | $403.0K | 0.01% | −20,692−17.4% | Reduced |
| HighTower Advisors, LLC | 95,184 | $390.3K | 0.00% | +26,000+37.6% | Added |
| Price T Rowe Associates Inc | 89,528 | $368.0K | 0.00% | +12,737+16.6% | Added |
| BNP Paribas Arbitrage, SA | 88,117 | $361.3K | 0.00% | +62,845+248.7% | Added |
| Nuveen, LLC | 87,618 | $359.2K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 67,590 | $277.1K | 0.00% | 00.0% | Unchanged |
| American Financial Group Inc | 64,113 | $262.9K | 0.10% | 00.0% | Unchanged |
| Mindset Wealth Management, LLC | 60,000 | $246.0K | 0.07% | 00.0% | Unchanged |
| MML Investors Services, LLC | 59,175 | $242.6K | 0.00% | +9,600+19.4% | Added |
| Bridgeway Capital Management, LLC | 56,715 | $232.5K | 0.00% | +25,000+78.8% | Added |
| Atom Investors LP | 53,266 | $218.4K | 0.02% | +41,133+339.0% | Added |
| SG Americas Securities, LLC | 45,324 | $186.0K | 0.00% | +22,623+99.7% | Added |
| Nomura Holdings Inc | 43,681 | $179.1K | 0.00% | −44,788−50.6% | Reduced |
| Cypress Capital Group | 42,000 | $172.2K | 0.02% | 00.0% | Unchanged |
| Deutsche Bank AG | 40,803 | $167.3K | 0.00% | +5,707+16.3% | Added |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 40,500 | $166.1K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 49,197 | $157.4K | 0.02% | 00.0% | Unchanged |
| Comerica Bank | 35,000 | $143.5K | 0.00% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 34,459 | $141.3K | 0.01% | −66,099−65.7% | Reduced |
| Apella Capital, LLC | 14,288 | $140.5K | 0.00% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 33,678 | $138.1K | 0.00% | +33,678 | New |
| Brighton Jones LLC | 31,539 | $129.3K | 0.00% | +762+2.5% | Added |
| Wealth Enhancement Advisory Services, LLC | 29,097 | $129.2K | 0.00% | +2,941+11.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 30,186 | $123.8K | 0.00% | −1,645−5.2% | Reduced |
| Cerity Partners LLC | 28,700 | $117.7K | 0.00% | +49+0.2% | Added |
| Wolverine Trading, LLC | 25,971 | $108.6K | 0.00% | +8,484+48.5% | Added |
| Coldstream Capital Management Inc | 25,830 | $105.9K | 0.00% | −1,000−3.7% | Reduced |
| Intech Investment Management LLC | 25,643 | $105.1K | 0.00% | −8,465−24.8% | Reduced |
| Stordahl Capital Management, Inc. | 22,860 | $93.7K | 0.02% | −9,796−30.0% | Reduced |
| Simplex Trading, LLC | 22,220 | $91.0K | 0.00% | +22,220 | New |
| China Universal Asset Management Co., Ltd. | 21,929 | $89.9K | 0.01% | +10,161+86.3% | Added |
| Quadrature Capital Ltd | 21,533 | $88.2K | 0.00% | +21,533 | New |
| AQR Capital Management LLC | 21,306 | $87.4K | 0.00% | +7,444+53.7% | Added |
| MetLife Investment Management | 20,504 | $84.1K | 0.00% | −13,483−39.7% | Reduced |
| Manufacturers Life Insurance Company, The | 19,898 | $81.6K | 0.00% | −662−3.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 18,219 | $75.0K | 0.00% | +2,801+18.2% | Added |
| Quantinno Capital Management LP | 18,208 | $74.7K | 0.00% | +18,208 | New |
| SPC Financial, Inc. | 17,400 | $71.3K | 0.01% | 00.0% | Unchanged |
| Breakwater Investment Management | 17,048 | $69.9K | 0.03% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 16,360 | $67.1K | 0.00% | +4,638+39.6% | Added |
| Walleye Capital LLC | 14,923 | $61.2K | 0.00% | +12,638+553.1% | Added |
| Walleye Trading LLC | 13,673 | $56.1K | 0.00% | +13,673 | New |
| ProShare Advisors LLC | 13,534 | $55.5K | 0.00% | −226−1.6% | Reduced |
| Harbour Investments, Inc. | 13,469 | $55.2K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 13,190 | $54.1K | 0.00% | +1,550+13.3% | Added |
| SEI Investments Co | 13,114 | $53.8K | 0.00% | −302−2.3% | Reduced |
| New York State Common Retirement Fund | 11,413 | $46.8K | 0.00% | 00.0% | Unchanged |
| International Assets Investment Management, LLC | 15,550 | $46.2K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 11,189 | $45.9K | 0.00% | −4,727−29.7% | Reduced |
| National Asset Management, Inc. | 10,760 | $44.1K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 10,695 | $43.8K | 0.00% | +5,677+113.1% | Added |
| Sowell Financial Services LLC | 10,450 | $42.8K | 0.00% | −300−2.8% | Reduced |
| Avantax Planning Partners, Inc. | 10,100 | $41.4K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 10,004 | $41.0K | 0.00% | −28,128−73.8% | Reduced |
| Legal & General Group Plc | 7,085 | $29.0K | 0.00% | +985+16.1% | Added |
| Farther Finance Advisors, LLC | 6,102 | $25.0K | 0.00% | −1,395−18.6% | Reduced |
| Advisor Group Holdings, Inc. | 5,609 | $23.3K | 0.00% | +277+5.2% | Added |
| Citigroup Inc | 5,517 | $22.6K | 0.00% | −17,172−75.7% | Reduced |
| Ameritas Investment Partners, Inc. | 5,027 | $20.6K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 4,056 | $16.6K | 0.00% | +3+0.1% | Added |
| Tower Research Capital LLC (TRC) | 3,428 | $14.1K | 0.00% | −9,986−74.4% | Reduced |