Omeros Corp. 13F holders
171 funds reported a position in Omeros Corp. in their 13F for the quarter ended 30 June 2026, together 36.2 million shares worth $343.9 million. Against the quarter before, 28 opened a position, 68 added, 39 trimmed and 25 sold out; together they bought a net 5.2 million shares. The largest holders: BlackRock, Inc., Ingalls & Snyder LLC and UBS Group AG.
Funds holding171+9 on Q1 2026
Shares they held36.2Mworth $343.9 million
Net bought on the quarter5.2M sharesabout $49.5 million at the funds' values
Funds buying to selling96 to 64opened or added, to cut or sold
Opened 28Added 68Held 33Trimmed 39Sold out 25
What each fund did in OMER against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in OMER in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 35 reported a position in Omeros Corp.: 7 opened one, 10 added, 6 trimmed and 3 sold out, a net 52,328 shares bought.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 5 reported a position in Omeros Corp. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 1.9 million shares worth $18.2 million, 0.0% of its reported book. In the quarter, 2 funds added or opened a position and 3 trimmed or sold out; together they bought a net 34,067 shares, about $323,977 at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 1,914,460 | $18.2 million | 0.0% | +162,137 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 402,662 | $3.8 million | 0.0% | +116,188 | added | 30 June 2026 | 13F |
| Millennium Management | 343,839 | $3.3 million | 0.0% | -66,770 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 85,594 | $813,999 | 0.0% | -174,454 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 15,643 | $148,762 | 0.0% | -3,034 | trimmed | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 6,044,633 | 16.72% | $57.5 million | 0.00% | +735,007 | 13F |
| Ingalls & Snyder LLC | 3,659,523 | 10.12% | $34.8 million | 0.95% | +100,100 | 13F |
| UBS Group AG | 3,148,384 | 8.71% | $29.9 million | 0.01% | +807,653 | 13F |
| Vanguard Capital Management LLC | 3,072,050 | 8.50% | $29.2 million | 0.00% | +88,791 | 13F |
| State Street Corp. | 2,319,906 | 6.42% | $22.1 million | 0.00% | +400,331 | 13F |
| Geode Capital Management, LLC | 1,914,460 | 5.30% | $18.2 million | 0.00% | +162,137 | 13F |
| Stifel Financial Corp. | 1,836,925 | 5.08% | $17.5 million | 0.01% | +5,340 | 13F |
| Vanguard Portfolio Management LLC | 962,828 | 2.66% | $9.2 million | 0.00% | +244,153 | 13F |
| Invesco Ltd. | 751,771 | 2.08% | $7.1 million | 0.00% | +571,142 | 13F |
| Northern Trust Corp. | 727,348 | 2.01% | $6.9 million | 0.00% | +163,481 | 13F |
| Rock Springs Capital Management LP | 718,499 | 1.99% | $6.8 million | 0.33% | new | 13F |
| Corient Private Wealth LP | 659,730 | 1.82% | $6.3 million | 0.01% | -141,681 | 13F |
| Rubric Capital Management LP | 656,874 | 1.82% | $6.2 million | 0.06% | new | 13F |
| Charles Schwab Investment Management Inc. | 604,633 | 1.67% | $5.8 million | 0.00% | +22,121 | 13F |
| Bank of Montreal | 568,424 | 1.57% | $5.4 million | 0.00% | -2 | 13F |
| Vanguard Fiduciary Trust Co. | 491,173 | 1.36% | $4.7 million | 0.00% | -1,172 | 13F |
| Federated Hermes, Inc. | 478,290 | 1.32% | $4.5 million | 0.01% | new | 13F |
| Clutterbuck Capital Management LLC | 450,000 | 1.24% | $4.3 million | 2.46% | +150,000 | 13F |
| Two Sigma Investments, LP | 402,662 | 1.11% | $3.8 million | 0.00% | +116,188 | 13F |
| Morgan Stanley | 394,459 | 1.09% | $3.8 million | 0.00% | +76,567 | 13F |
| Millennium Management LLC | 343,839 | 0.95% | $3.3 million | 0.00% | -66,770 | 13F |
| Susquehanna International Group, LLP | 325,194 | 0.90% | $3.1 million | 0.00% | -159,836 | 13F |
| Badgley Phelps Wealth Managers, LLC | 263,556 | 0.73% | $2.5 million | 0.04% | no change | 13F |
| Wellington Management Group LLP | 204,541 | 0.57% | $1.9 million | 0.00% | +17,241 | 13F |
| Bank of New York Mellon Corp | 195,990 | 0.54% | $1.9 million | 0.00% | +29,744 | 13F |
| Bank of America Corp. | 194,140 | 0.54% | $1.8 million | 0.00% | -10,665 | 13F |
| Cambridge Investment Research Advisors, Inc. | 184,806 | 0.51% | $1.8 million | 0.00% | +96,238 | 13F |
| Nuveen, LLC | 169,952 | 0.47% | $1.6 million | 0.00% | +15,751 | 13F |
| Ancora Advisors LLC | 168,750 | 0.47% | $1.6 million | 0.03% | +53,750 | 13F |
| Goldman Sachs Group Inc. | 157,008 | 0.43% | $1.5 million | 0.00% | -45,885 | 13F |
| Wells Fargo & Company | 156,889 | 0.43% | $1.5 million | 0.00% | +38,546 | 13F |
| Swiss National Bank | 137,300 | 0.38% | $1.3 million | 0.00% | new | 13F |
| Virtus Investment Advisers, LLC | 133,129 | 0.37% | $1.3 million | 0.29% | +106,264 | 13F |
| Caption Management, LLC | 130,000 | 0.36% | $1.2 million | 0.04% | new | 13F |
| Price T Rowe Associates Inc. | 129,550 | 0.36% | $1.2 million | 0.00% | +22,257 | 13F |
| MML Investors Services, LLC | 118,175 | 0.33% | $1.1 million | 0.00% | +60,500 | 13F |
| Ameriprise Financial Inc. | 117,456 | 0.32% | $1.1 million | 0.00% | -492 | 13F |
| HighTower Advisors, LLC | 115,368 | 0.32% | $1.1 million | 0.00% | +4,738 | 13F |
| Rhumbline Advisers | 110,271 | 0.31% | $1.0 million | 0.00% | +7,453 | 13F |
| Brevan Howard Capital Management LP | 98,047 | 0.27% | $932,427 | 0.01% | +46,884 | 13F |
| Citadel Advisors LLC | 85,594 | 0.24% | $813,999 | 0.00% | -174,454 | 13F |
| Coldstream Capital Management Inc. | 84,743 | 0.23% | $805,906 | 0.01% | +30,613 | 13F |
| Quantinno Capital Management LP | 83,786 | 0.23% | $796,805 | 0.00% | +22,245 | 13F |
| Balyasny Asset Management L.P. | 83,558 | 0.23% | $794,637 | 0.00% | +54,475 | 13F |
| Jupiter Asset Management Ltd | 76,186 | 0.21% | $724,529 | 0.00% | new | 13F |
| California State Teachers Retirement System | 75,730 | 0.21% | $720,192 | 0.00% | +71,978 | 13F |
| Deutsche Bank AG | 75,053 | 0.21% | $713,754 | 0.00% | +20,023 | 13F |
| AllianceBernstein L.P. | 66,990 | 0.19% | $707,414 | 0.00% | no change | 13F |
| Citigroup Inc. | 72,829 | 0.20% | $692,604 | 0.00% | +42,039 | 13F |
| Mindset Wealth Management, LLC | 70,600 | 0.20% | $671,406 | 0.13% | +11,100 | 13F |
The 50 largest of the 171 funds that reported a position in OMER in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on OMER
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 474,000 | $4.5 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 270,400 | $2.6 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 29 July 2026 | 13G/A | BlackRock, Inc. and 1 other | 6.0 million | 8.2% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 23 April 2026 | 13G/A | Ingalls & Snyder LLC and 1 other | 3.5 million | 4.8% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 January 2026 | 13G | The Vanguard Group and 1 other | 4.0 million | 5.7% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 31 October 2025 | 13G/A | The Vanguard Group and 1 other | 3.3 million | 4.9% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 24 September 2026 | 49,710 | $20.74 | SEC |
| 21 September 2026 | 39,795 | $17.87 | SEC |
| 17 September 2026 | 21 | $17.34 | SEC |
| 15 September 2026 | 19 | $17.46 | SEC |
| 4 September 2026 | 62 | $19.11 | SEC |
| 1 September 2026 | 5 | $18.79 | SEC |
| 31 August 2026 | 481 | $18.61 | SEC |
| 26 August 2026 | 19,900 | $19.28 | SEC |
| 24 August 2026 | 11,566 | $19.27 | SEC |
| 19 August 2026 | 42,091 | $17.19 | SEC |
| 17 August 2026 | 17,443 | $17.19 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.