Omeros (OMER)
Commercializes YARTEMLEA for TA-TMA while advancing complement and specialty therapeutics.
$20.94
After hours−0.11 (−0.53%)
At close$21.05(+13.83%)
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13F · 13D/G · Form 4
| Institutions | ≈ 50.38% | 36.47M shares | |
|---|---|---|---|
| 186 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 10.13% | 7.33M shares | |
| 5 holders · as of Sep 1, 2026 | |||
| Other | ≈ 39.49% | 28.59M shares | |
| remainder | |||
72.39M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
186 holders · 36.47M shares · 40 new positions · 112 increased · 38 reduced · 26 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 6.04M | 8.35% | +735.0K | Aug 7, 2026 |
| Ingalls & Snyder LLC | 3.66M | 5.06% | +100.1K | Aug 14, 2026 |
| UBS Group AG | 3.15M | 4.35% | +807.7K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 3.07M | 4.24% | +88.8K | Aug 13, 2026 |
| State Street Corp | 2.32M | 3.20% | +400.3K | Aug 7, 2026 |
| Geode Capital Management, LLC | 1.91M | 2.64% | +162.1K | Aug 12, 2026 |
| Stifel Financial Corp | 1.84M | 2.54% | +5.3K | Aug 12, 2026 |
| Vanguard Portfolio Management LLC | 962.8K | 1.33% | +244.2K | Aug 13, 2026 |
13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 31, 2026 | Peter B. Cancelmoofficer: VP, General Counsel | Sale | 25,000 | $18.54 | 200 |
| Aug 28, 2026 | Peter B. Cancelmoofficer: VP, General Counsel | Sale | 25,000 | $18.65 | 200 |
| Aug 27, 2026 | Arnold C. Hanishdirector | Sale · 2 lots | 10,000 | $18.95 | 0 |
| Aug 26, 2026 | Arnold C. Hanishdirector | Sale | 5,000 | $18.53 | 0 |
| Aug 24, 2026 | David J. Borgesofficer: VP, Finance & CAO | Sale | 906 | $19.10 | 0 |
| Aug 21, 2026 | David J. Borgesofficer: VP, Finance & CAO | Sale | 10,000 | $18.95 | 0 |
| Aug 20, 2026 | Thomas J. Cabledirector | Sale | 15,000 | $18.45 | 35,067 |
| Aug 13, 2026 | David J. Borgesofficer: VP, Finance & CAO | Sale | 5,000 | $16.95 | 0 |
| May 22, 2026 | Thomas J. Cabledirector | Sale | 7,500 | $11.61 | 35,067 |
| Jan 12, 2026 | David J. Borgesofficer: VP, Finance & CAO | Sale | 30,000 | $12.72 | 0 |
House and Senate disclosures
Not reported.