2m 2m 2m 2m 2m 2m 2m
Omeros (OMER)
NASDAQ
$19.25-$0.02 (-0.13%)
Price as of Aug 21, 2026 7:58 PM EDT- $1.4BMarket Cap
- 337.95%1-Year Change
- BiotechnologyIndustry
Omeros (OMER)
$19.25-$0.02 (-0.13%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 8.35% | 6.0M | +735,007 (+12.16%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 5.94% | 4.3M | +69,401 (+1.61%) | Dec 31, 2024 |
BLACKROCK INC. | 5.67% | 4.1M | -109,538 (-2.67%) | Jun 30, 2024 |
VANGUARD GROUP INC | 5.55% | 4.0M | +666,357 (+16.60%) | Dec 31, 2025 |
INGALLS & SNYDER LLC | 5.06% | 3.7M | +100,100 (+2.74%) | Jun 30, 2026 |
UBS GROUP AG | 4.35% | 3.1M | +807,653 (+25.65%) | Jun 30, 2026 |
VANGUARD CAPITAL MANAGEMENT LLC | 4.24% | 3.1M | +88,791 (+2.89%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
AQR Funds | 6.53% | 4.7M | 0 (0.00%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 4.03% | 2.9M | +118,909 (+4.08%) | Mar 31, 2026 |
iSHARES TRUST | 3.82% | 2.8M | 0 (0.00%) | May 31, 2026 |
LEGG MASON PARTNERS INVESTMENT TRUST | 2.67% | 1.9M | 0 (0.00%) | Apr 30, 2026 |
LMP CAPITAL & INCOME FUND INC. | 2.51% | 1.8M | 0 (0.00%) | Aug 30, 2024 |
FIDELITY CONCORD STREET TRUST | 0.90% | 652,526 | +5,315 (+0.81%) | May 31, 2026 |
SPDR SERIES TRUST | 0.68% | 494,846 | 0 (0.00%) | Apr 30, 2026 |
Current Ownership Distribution
- Institutions532.8M (74.50%)
- Mutual Funds180.7M (25.27%)
- Insiders1.6M (0.22%)
- Other0 (0.00%)
Insider Transactions
- 0.22% (1.6M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 2Number of InsiderSelling (last 12 months)
- $1.1MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Cable Thomas J. | Exempt | Aug 20, 2026 | $0.00 | 7,500 | $0.00 | 0 |
Cable Thomas J. | Exempt | Aug 20, 2026 | $0.00 | 7,500 | $0.00 | 0 |
Cable Thomas J. | Exempt | Aug 20, 2026 | $15,000.00 | 7,500 | $2.00 | 42,567 |
Cable Thomas J. | Exempt | Aug 20, 2026 | $29,475.00 | 7,500 | $3.93 | 50,067 |
Cable Thomas J. | Sell | Aug 20, 2026 | $276,772.50 | 15,000 | $18.45 | 35,067 |
Schocken Joseph L | Award | Aug 12, 2026 | $0.00 | 30,000 | $0.00 | 30,000 |
Cable Thomas J. | Award | Jun 18, 2026 | $0.00 | 15,000 | $0.00 | 15,000 |
Borges David J. VP, Finance & CAO | Exempt | Jan 13, 2026 | $0.00 | 30,000 | $0.00 | 65,000 |
Borges David J. VP, Finance & CAO | Exempt | Jan 13, 2026 | $91,800.00 | 30,000 | $3.06 | 30,000 |
Borges David J. VP, Finance & CAO | Sell | Jan 13, 2026 | $369,315.00 | 30,000 | $12.31 | 0 |
Borges David J. VP, Finance & CAO | Sell | Jan 12, 2026 | $381,600.00 | 30,000 | $12.72 | 0 |
Demopulos Gregory A MD Chairman, CEO & President | Gift | Oct 13, 2025 | $0.00 | 600,000 | $0.00 | 1.4M |
Demopulos Gregory A MD Chairman, CEO & President | Gift | Oct 13, 2025 | $0.00 | 300,000 | $0.00 | 300,000 |
Demopulos Gregory A MD Chairman, CEO & President | Gift | Oct 13, 2025 | $0.00 | 300,000 | $0.00 | 300,000 |
Borges David J. VP, Finance & CAO | Award | Jun 30, 2025 | $0.00 | 95,000 | $0.00 | 95,000 |
Cancelmo Peter B VP, General Counsel | Award | Jun 30, 2025 | $0.00 | 100,000 | $0.00 | 100,000 |
Cable Thomas J. | Award | Jun 27, 2025 | $0.00 | 15,000 | $0.00 | 15,000 |
Shah Rajiv | Award | Jun 27, 2025 | $0.00 | 15,000 | $0.00 | 15,000 |
Demopulos Peter A MD | Award | Jun 27, 2025 | $0.00 | 15,000 | $0.00 | 15,000 |
Perkinson Diana T. | Award | Jun 27, 2025 | $0.00 | 15,000 | $0.00 | 15,000 |