OmerosOMER
13F holders, Q1 2025 (March 31)137holders +9
20new positions
12sold out
4famous investors
$8.22avg. 13F price*
At the end of Q1 2025, 137 institutions reported holding Omeros Corp. (OMER) in their 13F filings, up 9 from Q4 2024. 20 opened new positions and 12 sold out. The largest holders were BlackRock, Inc. ($36.0M), Ingalls & Snyder LLC ($32.7M) and Vanguard Group Inc. ($26.6M). 4 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Omeros Corp.
- CUSIP
- 682143102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $3.3M |
| Exits | 12 | $4.9M |
All 13F filers, Q4 2024 → Q1 2025: 2,681,506 shares bought and 1,672,157 shares sold, net +1,009,349 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 137 holders
| BlackRock, Inc. | 0.00% | Add +2.0% | 4,383,117 | $36.0M |
| Ingalls & Snyder LLC | 1.08% | Reduce -0.8% | 3,977,813 | $32.7M |
| Vanguard Group Inc. | 0.00% | Add +3.0% | 3,237,256 | $26.6M |
| D. E. Shaw & Co. | 0.02% | Add +5.4% | 1,938,528 | $15.9M |
| Stifel Financial Corp. | 0.01% | Reduce -1.6% | 1,556,649 | $12.8M |
| Geode Capital Management, LLC | 0.00% | Add +2.2% | 1,369,132 | $11.3M |
| State Street Corp. | 0.00% | Add +11.9% | 1,356,138 | $11.1M |
| Morgan Stanley | 0.00% | Add +127.7% | 760,360 | $6.3M |
| Corient Private Wealth LP | 0.01% | Reduce -1.8% | 720,422 | $5.9M |
| Nomura Holdings Inc. | 0.03% | Reduce -9.1% | 679,020 | $5.6M |
| UBS Group AG | 0.00% | Reduce -22.2% | 660,657 | $5.4M |
| Marshall Wace, LLP | 0.01% | Add +1357.2% | 644,152 | $5.3M |
| Bank of Montreal | 0.00% | No change | 563,095 | $4.6M |
| Royal Bank of Canada | 0.00% | Reduce -0.1% | 499,323 | $4.1M |
| Northern Trust Corp. | 0.00% | Reduce -4.9% | 484,635 | $4.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.5% | 463,882 | $3.8M |
| Millennium Management | 0.00% | Add +268.0% | 315,252 | $2.6M |
| Badgley Phelps Wealth Managers, LLC | 0.05% | No change | 245,734 | $2.0M |
| Susquehanna International Group, LLP | 0.00% | Add +183.7% | 215,974 | $1.8M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -14.4% | 181,155 | $1.5M |
| Citadel Advisors | 0.00% | Add +137.6% | 173,026 | $1.4M |
| Osaic Holdings, Inc. | 0.00% | Add +77432.7% | 161,268 | $1.3M |
| Bank of New York Mellon Corp | 0.00% | Add +2.3% | 151,062 | $1.2M |
| Jane Street Group, LLC | 0.00% | Reduce -2.7% | 141,100 | $1.2M |
| Wellington Management Group LLP | 0.00% | New | 136,002 | $1.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -0.0% | 120,477 | $990K |
| Nuveen, LLC | 0.00% | — | 114,057 | $938K |
| Bank of America Corp. | 0.00% | Reduce -5.9% | 112,200 | $922K |
| Rhumbline Advisers | 0.00% | Reduce -0.6% | 107,597 | $884K |
| Two Sigma Investments, LP | 0.00% | Reduce -35.2% | 105,639 | $868K |
| Invesco Ltd. | 0.00% | Add +169.1% | 87,044 | $716K |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -18.2% | 85,514 | $703K |
| Barclays PLC | 0.00% | Reduce -21.6% | 81,341 | $669K |
| T. Rowe Price Associates Inc. | 0.00% | Add +90.8% | 75,504 | $621K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 70,398 | $579K |
| American Financial Group Inc. | 0.23% | No change | 64,113 | $527K |
| Simplex Trading, LLC | 0.02% | Reduce -39.3% | 63,465 | $521K |
| Mindset Wealth Management, LLC | 0.20% | No change | 63,000 | $518K |
| HighTower Advisors, LLC | 0.00% | Add +1.7% | 60,339 | $496K |
| Alliancebernstein L.P. | 0.00% | No change | 50,990 | $419K |
| Citigroup Inc. | 0.00% | Add +13.4% | 50,114 | $412K |
| Wells Fargo & Company | 0.00% | Add +39.4% | 46,206 | $380K |
| Acadian Asset Management LLC | 0.00% | New | 43,695 | $357K |
| Franklin Resources Inc. | 0.00% | Add +222.9% | 42,577 | $350K |
| Deutsche Bank AG | 0.00% | Add +4.9% | 42,019 | $345K |
| Graham Capital Management, L.P. | 0.01% | New | 39,327 | $323K |
| JPMorgan Chase & Co. | 0.00% | Add +11.3% | 35,776 | $294K |
| Comerica Bank | 0.00% | No change | 35,000 | $288K |
| Cypress Capital Group | 0.04% | No change | 34,800 | $286K |
| AQR Capital Management | 0.00% | Reduce -11.5% | 34,700 | $285K |
| MetLife Investment Management, LLC | 0.00% | Reduce -2.1% | 33,987 | $279K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.4% | 33,235 | $273K |
| Stordahl Capital Management, Inc. | 0.06% | Reduce -18.4% | 32,656 | $268K |
| State of Wisconsin Investment Board | 0.00% | Reduce -14.9% | 32,136 | $264K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -79.5% | 31,715 | $261K |
| Brighton Jones LLC | 0.01% | Add +11.3% | 30,714 | $252K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0.01% | No change | 30,000 | $247K |
| MML Investors Services, LLC | 0.00% | Add +4.2% | 29,825 | $245K |
| Group One Trading LLC | 0.01% | Reduce -69.6% | 29,567 | $243K |
| SG Americas Securities, LLC | 0.00% | Add +18.3% | 28,811 | $237K |
| Cerity Partners LLC | 0.00% | Reduce -1.2% | 28,650 | $236K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.5% | 27,403 | $225K |
| Coldstream Capital Management Inc. | 0.00% | Reduce -1.8% | 26,842 | $221K |
| Intech Investment Management LLC | 0.00% | Add +30.6% | 26,570 | $218K |
| Squarepoint Ops LLC | 0.00% | Reduce -25.3% | 23,904 | $196K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -2.3% | 20,002 | $164K |
| Virtus Investment Advisers, LLC | 0.04% | New | 19,338 | $159K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 17,430 | $143K |
| SPC Financial, Inc. | 0.01% | Reduce -10.3% | 17,400 | $143K |
| HSBC Holdings PLC | 0.00% | New | 17,138 | $142K |
| Breakwater Investment Management | 0.06% | No change | 17,048 | $140K |
| AlphaQuest LLC | 0.01% | Reduce -45.7% | 15,687 | $129K |
| Voya Investment Management LLC | 0.00% | Reduce -9.1% | 15,667 | $129K |
| Two Sigma Advisers, LP | 0.00% | Reduce -60.0% | 15,500 | $127K |
| ProShare Advisors LLC | 0.00% | Reduce -20.4% | 14,721 | $121K |
| Susquehanna Fundamental Investments, LLC | 0.00% | Reduce -90.9% | 13,764 | $113K |
| FMR LLC | 0.00% | Reduce -31.1% | 13,340 | $110K |
| Raymond James Financial Inc. | 0.00% | No change | 12,549 | $103K |
| Cibc World Markets Corp. | 0.00% | New | 12,411 | $102K |
| Balyasny Asset Management L.P. | 0.00% | New | 12,123 | $100K |
| Sei Investments Co. | 0.00% | New | 12,072 | $99K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 11,722 | $96K |
| China Universal Asset Management Co., Ltd. | 0.01% | Reduce -5.4% | 11,624 | $96K |
| New York State Common Retirement Fund | 0.00% | Reduce -34.1% | 11,413 | $94K |
| Profund Advisors LLC | 0.00% | New | 11,308 | $93K |
| Apella Capital, LLC | 0.00% | No change | 14,288 | $93K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +0.1% | 11,099 | $91K |
| B. Riley Wealth Advisors, Inc. | 0.00% | Reduce -4.8% | 10,760 | $88K |
| Trexquant Investment LP | 0.00% | New | 10,760 | $88K |
| Sowell Financial Services LLC | 0.00% | New | 10,750 | $88K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -90.7% | 10,555 | $87K |
| Affinity Asset Advisors, LLC | 0.01% | No change | 9,958 | $82K |
| Harbour Investments, Inc. | 0.00% | Add +51.9% | 9,218 | $76K |
| Richards, Merrill & Peterson, Inc. | 0.03% | No change | 6,900 | $57K |
| Farther Finance Advisors, LLC | 0.00% | No change | 6,044 | $48K |
| Ancora Advisors LLC | 0.00% | Reduce -93.2% | 5,800 | $48K |
| Legal & General Group Plc | 0.00% | No change | 5,457 | $45K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 5,027 | $41K |
| California State Teachers Retirement System | 0.00% | No change | 4,053 | $33K |
| BNP Paribas Financial Markets | 0.00% | Reduce -47.7% | 3,896 | $32K |
"% of holder's portfolio" is OMER's weight in each manager's 13F, not the share of Omeros Corp. the manager owns.