Omeros Corp
OMER- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001285819
In the last 90 days, Omeros Corp insiders filed 0 open-market purchases and 6 sales; 171 institutions reported holding it in 13F filings for Q2 2026, worth $343.0M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $2.20M in total
- 6
- 13F holdersQ2 2026, +10 vs. previous quarter
- 171
- 13F valueReported value at the end of Q2 2026
- $343.0M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding OMER, Q2 2026
No superinvestor reported holding OMER at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Omeros Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 24, 2026 (view filing)9:00 PM ET | Sep 22-23 | 2 days | Borges David J.VP, Finance & CAO | SSale | −20.0K | $20.95 | −$419.0K | −100.0%0 after | 2 lots10b5-1 |
| Sep 1, 2026 (view filing)4:41 PM ET | Aug 28-31 | 4 days | Cancelmo Peter BVP, General Counsel | SSale | −50.0K | $18.59 | −$929.7K | −99.6%200 after | 2 lots |
| Aug 28, 2026 (view filing)4:31 PM ET | Aug 26-27 | 2 days | Hanish Arnold CDirector | SSale | −15.0K | $18.81 | −$282.1K | −100.0%0 after | 3 lots |
| Aug 25, 2026 (view filing)5:40 PM ET | Aug 21-24 | 4 days | Borges David J.VP, Finance & CAO | SSale | −10.9K | $18.96 | −$206.8K | −100.0%0 after | 2 lots10b5-1 |
| Aug 21, 2026 (view filing)5:34 PM ET | Aug 20 | 1 day | Cable Thomas J.Director | SSale | −15.0K | $18.45 | −$276.8K | −30.0%35.1K after | |
| Aug 17, 2026 (view filing)7:42 PM ET | Aug 13 | 4 days | Borges David J.VP, Finance & CAO | SSale | −5.00K | $16.95 | −$84.8K | −100.0%0 after | 10b5-1 |
| May 27, 2026 (view filing) | May 22 | 5 days | Cable Thomas J.Director | SSale | −7.50K | $11.61 | −$87.1K | −17.6%35.1K after | 10b5-1 |
| Jan 14, 2026 (view filing) | Jan 12-13 | 2 days | Borges David J.VP, Finance & CAO | SSale | −60.0K | $12.52 | −$750.9K | −100.0%0 after | 2 lots |
| Nov 21, 2023 (view filing) | Nov 17 | 4 days | Demopulos Gregory A MDChairman, CEO & President | PPurchase | +15.0K | $1.68 | +$25.2K | +13.8%123.9K after | |
| Nov 17, 2023 (view filing) | Nov 15 | 2 days | Demopulos Peter A MDDirector | PPurchase | +10.0K | $1.53 | +$15.3K | +5.0%208.5K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Omeros Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,044,633 | $57.5M | 0.00% | +735,007+13.8% | Added |
| Ingalls & Snyder LLC | 3,659,523 | $34.8M | 0.95% | +100,100+2.8% | Added |
| UBS Group AG | 3,148,384 | $29.9M | 0.00% | +807,653+34.5% | Added |
| Vanguard Capital Management LLC | 3,072,050 | $29.2M | 0.00% | +88,791+3.0% | Added |
| State Street Corp | 2,319,906 | $22.1M | 0.00% | +400,331+20.9% | Added |
| Geode Capital Management, LLC | 1,914,460 | $18.2M | 0.00% | +162,137+9.3% | Added |
| Stifel Financial Corp | 1,836,925 | $17.5M | 0.01% | +5,340+0.3% | Added |
| Vanguard Portfolio Management LLC | 962,828 | $9.16M | 0.00% | +244,153+34.0% | Added |
| Invesco Ltd. | 751,771 | $7.15M | 0.00% | +571,142+316.2% | Added |
| Northern Trust Corp | 727,348 | $6.92M | 0.00% | +163,481+29.0% | Added |