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 |
|---|---|---|---|---|---|
| Breakwater Investment Management | 17,048 | $162.1K | 0.06% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 15,939 | $151.6K | 0.01% | +15,939 | New |
| Bridgefront Capital, LLC | 15,773 | $150.0K | 0.04% | +15,773 | New |
| FMR LLC | 15,643 | $148.8K | 0.00% | −3,034−16.2% | Reduced |
| Apella Capital, LLC | 14,288 | $147.6K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 15,500 | $147.4K | 0.00% | +15,500 | New |
| Virginia Retirement Systems Et Al | 15,400 | $146.5K | 0.00% | +15,400 | New |
| China Universal Asset Management Co., Ltd. | 15,119 | $143.8K | 0.01% | −3,863−20.4% | Reduced |
| Cypress Capital Group | 15,000 | $142.7K | 0.01% | +15,000 | New |
| Engineers Gate Manager LP | 14,536 | $138.2K | 0.00% | +14,536 | New |
| Voya Investment Management LLC | 14,292 | $135.9K | 0.00% | +2,769+24.0% | Added |
| BNP Paribas Arbitrage, SA | 13,485 | $128.2K | 0.00% | −43,423−76.3% | Reduced |
| SEI Investments Co | 13,171 | $125.2K | 0.00% | 00.0% | Unchanged |
| National Asset Management, Inc. | 11,369 | $112.7K | 0.01% | 00.0% | Unchanged |
| ProShare Advisors LLC | 11,818 | $112.4K | 0.00% | −1,300−9.9% | Reduced |
| RTD Financial Advisors, Inc. | 11,700 | $111.3K | 0.01% | +11,700 | New |
| Lido Advisors, LLC | 10,663 | $101.4K | 0.00% | +10,663 | New |
| Sowell Financial Services LLC | 10,650 | $101.3K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 8,859 | $84.2K | 0.00% | −28,667−76.4% | Reduced |
| Advisor Group Holdings, Inc. | 7,995 | $76.0K | 0.00% | −356−4.3% | Reduced |
| Farther Finance Advisors, LLC | 7,102 | $67.5K | 0.00% | −4−0.1% | Reduced |
| Atlantic Union Bankshares Corp | 7,000 | $66.6K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 6,762 | $64.3K | 0.00% | −1,649−19.6% | Reduced |
| Ameritas Investment Partners, Inc. | 6,547 | $62.3K | 0.00% | +1,520+30.2% | Added |
| Great West Life Assurance Co | 6,456 | $61.0K | 0.00% | +6,456 | New |
| US Bancorp | 5,204 | $49.5K | 0.00% | +101+2.0% | Added |
| Assetmark, Inc | 3,600 | $34.2K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,230 | $31.0K | 0.00% | +2,430+303.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 3,237 | $30.8K | 0.00% | −461−12.5% | Reduced |
| Optiver Holding B.V. | 3,021 | $28.7K | 0.00% | −660−17.9% | Reduced |
| Steward Partners Investment Advisory, LLC | 2,191 | $20.8K | 0.00% | +691+46.1% | Added |
| SRS Capital Advisors, Inc. | 1,919 | $18.3K | 0.00% | +1,919 | New |
| Strategic Investment Solutions, Inc. | 1,826 | $17.4K | 0.00% | −1−0.1% | Reduced |
| Institute for Wealth Management, LLC. | 1,600 | $15.2K | 0.00% | +1,600 | New |
| GF Fund Management Co. Ltd. | 1,502 | $14.3K | 0.00% | −81−5.1% | Reduced |
| GWM Advisors LLC | 1,300 | $12.4K | 0.00% | 00.0% | Unchanged |
| Pinnacle Wealth Planning Services, Inc. | 1,231 | $11.7K | 0.00% | 00.0% | Unchanged |
| Persistent Asset Partners Ltd | 1,130 | $10.7K | 0.00% | +1,130 | New |
| Capital Analysts, LLC | 1,000 | $10.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 1,049 | $9.98K | 0.00% | −2,376−69.4% | Reduced |
| Sterling Capital Management LLC | 1,006 | $9.57K | 0.00% | +337+50.4% | Added |
| Plante Moran Financial Advisors, LLC | 1,000 | $9.51K | 0.00% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 805 | $7.66K | 0.00% | +805 | New |
| Parallel Advisors, LLC | 750 | $7.13K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 745 | $7.08K | 0.00% | +162+27.8% | Added |
| Philadelphia Investment Partners, LLC | 729 | $6.93K | 0.00% | 00.0% | Unchanged |
| Bear Mountain Capital, Inc. | 485 | $5.09K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 464 | $4.41K | 0.00% | −33−6.6% | Reduced |
| Rockefeller Capital Management L.P. | 460 | $4.37K | 0.00% | −515−52.8% | Reduced |
| The PNC Financial Services Group, Inc. | 410 | $3.90K | 0.00% | +33+8.8% | Added |
| Walleye Capital LLC | 374 | $3.56K | 0.00% | −34,159−98.9% | Reduced |
| Jones Financial Companies LLLP | 393 | $3.41K | 0.00% | −800−67.1% | Reduced |
| Federation des caisses Desjardins du Quebec | 300 | $2.85K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 209 | $1.99K | 0.00% | +1+0.5% | Added |
| CDKV Holdings LLC | 155 | $1.48K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 150 | $1.43K | 0.00% | −358−70.5% | Reduced |
| Truvestments Capital LLC | 146 | $1.39K | 0.00% | −800−84.6% | Reduced |
| Northwestern Mutual Wealth Management Co | 130 | $1.24K | 0.00% | −370−74.0% | Reduced |
| GAMMA Investing LLC | 128 | $1.22K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 70 | $666 | 0.00% | +70 | New |
| Huntington National Bank | 47 | $561 | 0.00% | +47 | New |
| IFG Advisory, LLC | 50 | $476 | 0.00% | +50 | New |
| Zions Bancorporation, National Association | 48 | $456 | 0.00% | +48 | New |
| National Bank of Canada | 40 | $380 | 0.00% | +40 | New |
| IFP Advisors, Inc | 26 | $247 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 17 | $162 | 0.00% | −113−86.9% | Reduced |
| Stone House Investment Management, LLC | 15 | $143 | 0.00% | −24−61.5% | Reduced |
| Essential Partners LLC | 11 | $105 | 0.00% | 00.0% | Unchanged |
| Silver Grove Financial Group, Inc. | 4 | $38 | 0.00% | +4 | New |
| Caitong International Asset Management Co., Ltd | 3 | $29 | 0.00% | −3,188−99.9% | Reduced |
| Covestor Ltd | 33 | $0 | 0.00% | +23+230.0% | 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 |