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Omeros (OMER)
NASDAQ
$10.15-$0.11 (-1.07%)
Price as of Jun 03, 2026 6:42 PM EDT- $799.0MMarket Cap
- 226.75%1-Year Change
- BiotechnologyIndustry
Omeros (OMER)
$10.15-$0.11 (-1.07%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 7.34% | 5.3M | +247,188 (+4.66%) | Mar 31, 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 | 4.92% | 3.6M | +110,724 (+3.11%) | Mar 31, 2026 |
N/A | 4.12% | 3.0M | +3.0M (+100.00%) | Mar 31, 2026 |
UBS GROUP AG | 3.23% | 2.3M | +117,749 (+5.03%) | Mar 31, 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 | +68,070 (+2.46%) | Mar 31, 2026 |
LEGG MASON PARTNERS INVESTMENT TRUST | 2.67% | 1.9M | 0 (0.00%) | Mar 31, 2026 |
LMP CAPITAL & INCOME FUND INC. | 2.51% | 1.8M | 0 (0.00%) | Aug 30, 2024 |
FIDELITY CONCORD STREET TRUST | 0.89% | 647,211 | +7,485 (+1.16%) | Feb 28, 2026 |
SPDR SERIES TRUST | 0.68% | 494,846 | +270,810 (+54.73%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions492.4M (74.27%)
- Mutual Funds168.2M (25.37%)
- Insiders2.4M (0.37%)
- Other0 (0.00%)
Insider Transactions
- 0.37% (2.4M)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 | May 22, 2026 | $0.00 | 7,500 | $0.00 | 0 |
Cable Thomas J. | Exempt | May 22, 2026 | $81,300.00 | 7,500 | $10.84 | 42,567 |
Cable Thomas J. | Sell | May 22, 2026 | $87,039.00 | 7,500 | $11.61 | 35,067 |
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 |
Demopulos Peter A MD | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |
Hood Leroy E. MD PhD | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |
Cable Thomas J. | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |
Shah Rajiv | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |
Perkinson Diana T. | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |
HANISH ARNOLD C | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |
Bumol Thomas F. | Award | Jun 06, 2024 | $0.00 | 15,000 | $0.00 | 15,000 |