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, Q1 2025
Institutional positions in Omeros Corp as of Mar 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
- 137
- +10 vs. Q4 2024
- Shares held
- 27.6M
- +1.12M (+4.2%) vs. Q4 2024
- Total value
- $226.7M
- −$34.6M (−13.2%) vs. Q4 2024
- New holders
- 22
- 34 more added
- Sold out
- 12
- 51 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Omeros Corp; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Simplex Trading, LLC | 63,465 | $521.0K | 0.02% | −41,141−39.3% | Reduced |
| American Financial Group Inc | 64,113 | $527.0K | 0.23% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 70,398 | $578.7K | 0.00% | +70,398 | New |
| Price T Rowe Associates Inc | 75,504 | $621.0K | 0.00% | +35,922+90.8% | Added |
| Barclays PLC | 81,341 | $668.6K | 0.00% | −22,385−21.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 85,514 | $702.9K | 0.00% | −19,024−18.2% | Reduced |
| Invesco Ltd. | 87,044 | $715.5K | 0.00% | +54,696+169.1% | Added |
| Two Sigma Investments, LP | 105,639 | $868.4K | 0.00% | −57,352−35.2% | Reduced |
| Rhumbline Advisers | 107,597 | $884.4K | 0.00% | −626−0.6% | Reduced |
| Bank of America Corp | 112,200 | $922.3K | 0.00% | −7,064−5.9% | Reduced |
| Nuveen, LLC | 114,057 | $937.5K | 0.00% | +114,057 | New |
| Ameriprise Financial Inc | 120,477 | $990.3K | 0.00% | −160.0% | Reduced |
| Wellington Management Group LLP | 136,002 | $1.12M | 0.00% | +136,002 | New |
| Jane Street Group, LLC | 141,100 | $1.16M | 0.00% | −3,906−2.7% | Reduced |
| Bank of New York Mellon Corp | 151,062 | $1.24M | 0.00% | +3,321+2.2% | Added |
| Advisor Group Holdings, Inc. | 161,268 | $1.33M | 0.00% | +161,060+77,432.7% | Added |
| Citadel Advisors LLC | 173,026 | $1.42M | 0.00% | +100,201+137.6% | Added |
| Goldman Sachs Group Inc | 181,155 | $1.49M | 0.00% | −30,445−14.4% | Reduced |
| Susquehanna International Group, LLP | 215,974 | $1.78M | 0.00% | +139,851+183.7% | Added |
| Badgley Phelps Wealth Managers, LLC | 245,734 | $2.02M | 0.05% | 00.0% | Unchanged |
| Millennium Management LLC | 315,252 | $2.59M | 0.00% | +229,581+268.0% | Added |
| Charles Schwab Investment Management Inc | 463,882 | $3.81M | 0.00% | −11,644−2.4% | Reduced |
| Northern Trust Corp | 484,635 | $3.98M | 0.00% | −25,005−4.9% | Reduced |
| Royal Bank of Canada | 499,323 | $4.10M | 0.00% | −722−0.1% | Reduced |
| Bank of Montreal | 563,095 | $4.63M | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 644,152 | $5.29M | 0.01% | +599,947+1,357.2% | Added |
| UBS Group AG | 660,657 | $5.43M | 0.00% | −188,530−22.2% | Reduced |
| Nomura Holdings Inc | 679,020 | $5.58M | 0.03% | −68,261−9.1% | Reduced |
| CI Private Wealth, LLC | 720,422 | $5.92M | 0.01% | −13,027−1.8% | Reduced |
| Morgan Stanley | 760,360 | $6.25M | 0.00% | +426,478+127.7% | Added |
| State Street Corp | 1,356,138 | $11.1M | 0.00% | +144,570+11.9% | Added |
| Geode Capital Management, LLC | 1,369,132 | $11.3M | 0.00% | +29,701+2.2% | Added |
| Stifel Financial Corp | 1,556,649 | $12.8M | 0.01% | −24,556−1.6% | Reduced |
| D. E. Shaw & Co., Inc. | 1,938,528 | $15.9M | 0.02% | +99,630+5.4% | Added |
| Vanguard Group Inc | 3,237,256 | $26.6M | 0.00% | +95,599+3.0% | Added |
| Ingalls & Snyder LLC | 3,977,813 | $32.7M | 1.08% | −30,055−0.7% | Reduced |
| BlackRock, Inc. | 4,383,117 | $36.0M | 0.00% | +84,344+2.0% | Added |
| Cormorant Asset Management, LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Sculptor Capital LP | 0 | $0 | 0.00% | −94,000−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −20,985−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −20,846−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −16,657−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −15,495−100.0% | Sold out |
| Gilbert & Cook, Inc. | 0 | $0 | 0.00% | −13,750−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −8,373−100.0% | Sold out |
| Seros Financial, LLC | 0 | $0 | 0.00% | −16,115−100.0% | Sold out |
| Sugar Maple Asset Management, LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |