OMER · Omeros Corp · Shareholders & Ownership
$16.86
+0.60 (+3.69%)
At close · Oct 22
Return incl. dividend (before tax)
Market Cap
$1.18B
Shares
72.39M
Volume · Oct 22
737.28K
Avg daily vol (3M)
1.72M
Every disclosed holder of OMER in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns OMER
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 36,034,016 | 49.78% |
| Insiders (Forms 3, 4, 5) | 2,023,902 | 2.80% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 34,330,398 | 47.43% |
| Registered funds (N-PORT, not summed) | 12,582,668 | 17.38% |
Shares outstanding: 72,388,316, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of OMER
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,044,633 | ||
| 1.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
5,961,792 | ||
| 1.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,877,113 | ||
| 1.3 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
417,582 | ||
| 1.4 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
252,978 | ||
| 1.5 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
240,842 | ||
| 2 |
INGALLS & SNYDER LLC
13F
CIK 1041885 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,659,523 | ||
| 3 |
|
3,148,384 | ||
| 4 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,072,050 | ||
| 5 |
|
2,319,906 | ||
| 5.1 |
State Street(R) SPDR(R) S&P(R) Pharmaceuticals ETF
Fund
S000012321 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
640,960 | ||
| 5.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
24,800 | ||
| 5.3 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
1,821 | ||
| 5.4 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
327 | ||
| 6 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,172,336 | ||
| 7 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,914,460 | ||
| 8 |
STIFEL FINANCIAL CORP
13F
CIK 720672 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,836,925 | ||
| 9 |
Demopulos Gregory A MD
Insider
CIK 1472160 · Feb 18, 2026
Director, Chairman, CEO & President, issuer-wide
|
1,593,253 | ||
| 9.1 |
Gregory A. Demopulos, M.D.
13G
CIK 1472160 · Unknown · Dec 31, 2023
Rule 13d-1(d), exempt investor, not summed
|
5,704,061 | ||
| 10 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
962,828 | ||
| 11 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
831,218 | ||
| 12 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
751,771 | ||
| 12.1 |
Invesco Biotechnology & Genome ETF
Fund
S000003026 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
601,237 | ||
| 12.2 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
107,475 | ||
| 12.3 |
Invesco NASDAQ Future Gen 200 ETF
Fund
S000077288 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
6,377 | ||
| 12.4 |
Invesco Nasdaq Biotechnology ETF
Fund
S000072469 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
3,801 | ||
| 13 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
727,348 | ||
| 13.1 |
Small Cap Value Fund
Fund
S000001246 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
62,756 | ||
| 13.2 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
36,250 | ||
| 13.3 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
9,825 | ||
| 14 |
Rock Springs Capital Management LP
13F
CIK 1595725 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
718,499 | ||
| 15 |
Corient Private Wealth LLC
13F
CIK 1948780 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
659,730 | ||
| 16 |
Rubric Capital Management LP
13F
CIK 1687509 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
656,874 | ||
| 17 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
604,633 | ||
| 17.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
343,807 | ||
| 17.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
175,180 | ||
| 17.3 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
47,494 | ||
| 17.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
41,846 | ||
| 18 |
BANK OF MONTREAL /CAN/
13F
CIK 927971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
568,424 | ||
| 19 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
491,173 | ||
| 20 |
FEDERATED HERMES, INC.
13F
CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
478,290 | ||
| 21 |
Clutterbuck Capital Management LLC
13F
CIK 1517638 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
450,000 | ||
| 22 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
402,662 | ||
| 23 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
394,459 | ||
| 24 |
|
382,982 | ||
| 25 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
352,679 | ||
| 26 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
343,839 | ||
| 27 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
325,194 | ||
| 28 |
Badgley Phelps Wealth Managers, LLC
13F
CIK 1895362 · Registered investment adviser · Sep 30, 2026
|
263,556 | ||
| 29 |
Federated Hermes MDT Small Cap Growth Fund
Fund
S000012973 · Registered fund · Jul 31, 2026
Federated Hermes MDT Series, not summed
|
219,522 | ||
| 30 |
VANGUARD HEALTH CARE INDEX FUND
Fund
S000004450 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
213,047 | ||
| 31 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
204,541 | ||
| 32 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
195,990 | ||
| 33 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
194,140 | ||
| 34 |
VANGUARD U.S. MOMENTUM FACTOR ETF
Fund
S000061302 · Registered fund · May 31, 2026
VANGUARD WELLINGTON FUND, not summed
|
191,200 | ||
| 35 |
|
169,952 | ||
| 35.1 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
95,653 | ||
| 35.2 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
59,977 | ||
| 35.3 |
Nuveen Life Stock Index Fund
Fund
S000005094 · Registered fund · Jun 30, 2026
TIAA-CREF Life Funds, not summed
|
1,954 | ||
| 35.4 |
TIAA Separate Account VA-1 - Stock Index Account
Fund
S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
|
296 | ||
| 36 |
Ancora Advisors LLC
13F
CIK 1446114 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
168,750 | ||
| 37 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
157,008 | ||
| 37.1 |
Goldman Sachs Small Cap Equity Insights Fund
Fund
S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
15,368 | ||
| 37.2 |
Goldman Sachs Small Cap Value Insights Fund
Fund
S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
6,321 | ||
| 37.3 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
2,401 | ||
| 37.4 |
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund
S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
|
1,923 | ||
| 37.5 |
Goldman Sachs Small Cap Growth Insights Fund
Fund
S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
1,793 | ||
| 38 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
156,889 | ||
| 39 |
Swiss National Bank
13F
CIK 1582202 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
137,300 | ||
| 40 |
Virtus Investment Advisers, LLC
13F
CIK 19481 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
133,129 | ||
| 40.1 |
Virtus Biotech Etf
Fund
S000047354 · Registered fund · Jul 31, 2026
ETFis Series Trust I, not summed
|
155,369 | ||
| 41 |
Caption Management, LLC
13F
CIK 1706766 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
130,000 | ||
| 42 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
129,550 | ||
| 42.1 |
T. Rowe Price Extended Equity Market Index Fund
Fund
S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
13,400 | ||
| 42.2 |
T. Rowe Price Small-Cap Index Fund
Fund
S000051327 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
10,878 | ||
| 43 |
MML INVESTORS SERVICES, LLC
13F
CIK 701059 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
118,175 | ||
| 44 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
117,456 | ||
| 44.1 |
Columbia Research Enhanced Small Cap ETF
Fund
S000095313 · Registered fund · Jun 30, 2026
Columbia ETF Trust I, not summed
|
120 | ||
| 45 |
HighTower Advisors, LLC
13F
CIK 1462245 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
115,368 | ||
| 46 |
RHUMBLINE ADVISERS
13F
CIK 1115418 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
110,271 | ||
| 47 |
Brevan Howard Capital Management LP
13F
CIK 1512857 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
98,047 | ||
| 48 |
Bridge Builder Small/Mid Cap Growth Fund
Fund
S000048336 · Registered fund · Jun 30, 2026
Bridge Builder Trust, not summed
|
94,760 | ||
| 49 |
Cambridge Investment Research Advisors, Inc.
13F
CIK 1419186 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
92,403 | ||
| 50 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
85,594 |
9 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 240 holders
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Key facts
CIK
1285819
CUSIP
682143102
13F (30d)
21 filings
21 filers
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