# OMEROS CORP COM

OMEROS CORP COM is a security (CUSIP 682143102) tracked across SEC portfolio filings. 163 institutional managers reported $344.9M on Form 13F as of 2026-06-30; 14 registered fund positions totaling $15.7M via N-PORT as of 2026-05-31.

## Summary

- Issuer: OMEROS CORP
- Class: COM
- CUSIP: 682143102
- Asset category: EC
- 13F holders: 163
- 13F value: $344.9M
- 13F period: 2026-06-30
- N-PORT fund positions: 14
- N-PORT value: $15.7M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 163 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $68.9M | 4,013,315 |
| BlackRock, Inc. | New York, NY | $56.1M | 5,309,626 |
| UBS Group AG | Zurich, V8 | $24.7M | 2,340,731 |
| STATE STREET CORP | BOSTON, MA | $20.3M | 1,919,575 |
| KOTLER KEVIN | MELVILLE, NY | $19.3M | 905,635 |
| STIFEL FINANCIAL CORP | ST. LOUIS, MO | $19.3M | 1,831,585 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $18.5M | 1,752,323 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $14.8M | 485,030 |
| [Corient Private Wealth LLC](https://search.stillhousedata.com/firm/319448) | Miami, FL | $8.5M | 801,411 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $7.5M | 260,048 |
| [CHARLES SCHWAB INVESTMENT MANAGEMENT INC](https://search.stillhousedata.com/firm/106753) | SAN FRANCISCO, CA | $6.2M | 582,512 |
| BANK OF MONTREAL /CAN/ | TORONTO, A6 | $6.0M | 568,426 |
| NORTHERN TRUST CORP | CHICAGO, IL | $6.0M | 563,867 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $4.3M | 410,609 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $3.7M | 145,307 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $8.4M | 1.03% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $3.9M | 2.22% |
| [VANGUARD U.S. MOMENTUM FACTOR ETF](https://search.stillhousedata.com/fund/S000061302) | VANGUARD WELLINGTON FUND | $2.1M | 11.49% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $1.2M | 2.42% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $373K | 0.06% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $370K | 0.34% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $353K | 0.12% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $110K | 0.15% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $100K | 2.38% |
| [CORNERCAP SMALL-CAP VALUE FUND](https://search.stillhousedata.com/fund/S000004377) | CORNERCAP GROUP OF FUNDS | $87K | 7.25% |
| [Invesco NASDAQ Future Gen 200 ETF](https://search.stillhousedata.com/fund/S000077288) | Invesco Exchange-Traded Fund Trust II | $70K | 37.24% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $10K | 0.03% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $3K | 0.02% |
| [VANGUARD MARKET NEUTRAL FUND](https://search.stillhousedata.com/fund/S000019457) | VANGUARD MONTGOMERY FUNDS | $-1.4M | -31.92% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/682143102.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.