- Type / Class
- Equity / Common Stock
- Shares outstanding
- 70,906,625
- Total 13F shares
- 7,234
- Share change
- +21
- Total reported value
- $87,192
- Price per share
- $11.32
- Number of holders
- 2
- Value change
- +$222
- Number of buys
- 1
Quarterly Holders Quick Answers
What is CUSIP 682143102?
CUSIP 682143102 identifies OMER - OMEROS CORP - Common Stock in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
Related Filing Research
- Latest 13F filings for newly reported positions.
- Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
- Latest 10-Q/10-K reports for financial context tied to this issuer.
- Recent insider transactions for executive and insider activity.
- SEC investors directory and top value investors for manager drilldown.
- Back to full security ownership history.
Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
- Previous quarter: Q4 2025
Recent filing periods for CUSIP 682143102:
Top shareholders of OMER - OMEROS CORP - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
7.1%
|
5,062,438
|
$86,947,374 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
5.7%
|
4,013,315
|
$68,928,685 | — | 31 Dec 2025 | |
| INGALLS & SNYDER LLC |
13F
13D/G
|
Company |
7.2%
from 13D/G
|
3,448,699
|
$59,231,000 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
3.1%
|
2,222,982
|
$38,179,715 | — | 31 Dec 2025 | |
| STIFEL FINANCIAL CORP |
13F
|
Company |
2.6%
|
1,809,766
|
$31,082,740 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.3%
|
1,631,350
|
$28,025,557 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.2%
|
1,573,526
|
$27,025,309 | — | 31 Dec 2025 | |
| Gregory A. Demopulos MD |
3/4/5
|
Chairman, CEO & President, Director |
2.7%
|
1,893,253
|
$22,586,507 | — | 18 Feb 2026 | |
| Kevin Kotler |
13F
|
Individual |
1.3%
|
905,635
|
$15,554,281 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
1.1%
|
754,999
|
$12,967,108 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
1%
|
741,895
|
$12,742,047 | — | 31 Dec 2025 | |
| Corient Private Wealth LLC |
13F
|
Company |
0.97%
|
688,025
|
$11,816,830 | — | 31 Dec 2025 | |
| NOMURA HOLDINGS INC |
13F
|
Company |
0.92%
|
655,021
|
$11,249,986 | — | 31 Dec 2025 | |
| BANK OF MONTREAL /CAN/ |
13F
|
Company |
0.85%
|
601,643
|
$10,333,219 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.84%
|
593,222
|
$10,188,588 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.74%
|
526,732
|
$9,046,622 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.74%
|
524,757
|
$9,012,701 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.7%
|
498,399
|
$8,560,000 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.65%
|
463,622
|
$7,962,708 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.62%
|
441,811
|
$7,588,104 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.54%
|
386,152
|
$6,632,161 | — | 31 Dec 2025 | |
| Badgley Phelps Wealth Managers, LLC |
13F
|
Company |
0.37%
|
263,556
|
$4,526,575 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.34%
|
240,352
|
$4,128,046 | — | 31 Dec 2025 | |
| Jump Financial, LLC |
13F
|
Company |
0.32%
|
228,000
|
$3,915,900 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.32%
|
227,294
|
$3,903,775 | — | 31 Dec 2025 | |
| Informed Momentum Co LLC |
13F
|
Company |
0.29%
|
207,480
|
$3,563,469 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.29%
|
202,617
|
$3,479,947 | — | 31 Dec 2025 | |
| Itau Unibanco Holding S.A. |
13F
|
Company |
0.25%
|
180,000
|
$3,052,800 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.23%
|
165,782
|
$2,847,312 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.23%
|
165,280
|
$2,838,684 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.22%
|
154,782
|
$2,658,380 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.22%
|
153,187
|
$2,630,987 | — | 31 Dec 2025 | |
| Clutterbuck Capital Management LLC |
13F
|
Company |
0.21%
|
150,000
|
$2,576,250 | — | 31 Dec 2025 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
0.19%
|
133,269
|
$2,288,895 | — | 31 Dec 2025 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.17%
|
123,979
|
$2,129,339 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.17%
|
120,490
|
$2,069,416 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.17%
|
117,004
|
$2,009,544 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.16%
|
114,808
|
$1,971,827 | — | 31 Dec 2025 | |
| Walleye Capital LLC |
13F
|
Company |
0.16%
|
109,956
|
$1,888,494 | — | 31 Dec 2025 | |
| HighTower Advisors, LLC |
13F
|
Company |
0.15%
|
104,059
|
$1,787,216 | — | 31 Dec 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.14%
|
100,105
|
$1,719,287 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.14%
|
96,948
|
$1,665,082 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.14%
|
95,745
|
$1,644,000 | — | 31 Dec 2025 | |
| Susquehanna Portfolio Strategies, LLC |
13F
|
Company |
0.13%
|
92,759
|
$1,593,136 | — | 31 Dec 2025 | |
| AlphaQuest LLC |
13F
|
Company |
0.12%
|
82,597
|
$1,418,603 | — | 31 Dec 2025 | |
| Cambridge Investment Research Advisors, Inc. |
13F
|
Company |
0.12%
|
81,643
|
$1,402,000 | — | 31 Dec 2025 | |
| MML INVESTORS SERVICES, LLC |
13F
|
Company |
0.11%
|
77,875
|
$1,337,503 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.11%
|
76,100
|
$1,307,018 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.1%
|
73,490
|
$1,262,191 | — | 31 Dec 2025 | |
| Walleye Trading LLC |
13F
|
Company |
0.1%
|
69,653
|
$1,196,290 | — | 31 Dec 2025 |
Institutional Holders of OMEROS CORP - Common Stock (OMER) as of Q1 2026
As of 31 Mar 2026,
OMEROS CORP - Common Stock (OMER) was held by
2 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
7,234 shares.
The largest 3 holders included
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC, Farther Finance Advisors, LLC, and GAMMA Investing LLC.
This page lists
3
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
150
Q1 2026 holders
2
Holder diff
-148
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.