Security key
682143102
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 27,567,515
- Total 13F value
- $226,581,675
- Share change
- +1,013,450
- Put/Call ratio
- 128%
- SEC-reported price per share
- $8.22
- Number of holders
- 136
- Value change
- +$7,577,920
- Number of buys
- 54
- Number of sells
- 61
- Shares outstanding
- 72,704,780
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2025
Institutions
136
Top holders
10
OMER full security history
Ownership snapshot
Full 13F holder table
OMEROS CORP SEC filings
OMEROS CORP company facts
Broader feeds
Ownership snapshot
Top reported holders of OMER - OMEROS CORP - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2024
13F
Lead comparable stake: 5.9%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 5.9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
5.9%
INGALLS & SNYDER LLC
5.5%
VANGUARD GROUP INC
4.3%
D. E. Shaw & Co., Inc.
2.5%
STIFEL FINANCIAL CORP
2.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
Company
|
5.9%
|
$42,471,877
4,298,773 shares
|
— | 31 Dec 2024 |
| INGALLS & SNYDER LLC |
13F
Company
|
5.5%
|
$39,598,000
4,007,868 shares
|
— | 31 Dec 2024 |
| VANGUARD GROUP INC |
13F
Company
|
4.3%
|
$31,039,571
3,141,657 shares
|
— | 31 Dec 2024 |
| D. E. Shaw & Co., Inc. |
13F
Company
|
2.5%
|
$18,168,312
1,838,898 shares
|
— | 31 Dec 2024 |
| STIFEL FINANCIAL CORP |
13F
Company
|
2.2%
|
$15,622,307
1,581,205 shares
|
— | 31 Dec 2024 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
1.8%
|
$13,237,031
1,339,431 shares
|
— | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
136
Shares
27,567,515
Rows available
136
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2025 vs Q1 2025 Across Filers
Q1 2025 holders
136
Q1 2025 holders
136
Holder diff
0
| Investor | Q1 2025 Shares | Q1 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q1 2025 value | Value change | Value Chg % |
|---|