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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

Go to the superinvestors tab

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.

See all insider trades
Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 24, 2026 (view filing)9:00 PM ETSep 22-232 daysBorges David J.VP, Finance & CAOSSale−20.0K$20.95−$419.0K−100.0%0 after2 lots10b5-1
Sep 1, 2026 (view filing)4:41 PM ETAug 28-314 daysCancelmo Peter BVP, General CounselSSale−50.0K$18.59−$929.7K−99.6%200 after2 lots
Aug 28, 2026 (view filing)4:31 PM ETAug 26-272 daysHanish Arnold CDirectorSSale−15.0K$18.81−$282.1K−100.0%0 after3 lots
Aug 25, 2026 (view filing)5:40 PM ETAug 21-244 daysBorges David J.VP, Finance & CAOSSale−10.9K$18.96−$206.8K−100.0%0 after2 lots10b5-1
Aug 21, 2026 (view filing)5:34 PM ETAug 201 dayCable Thomas J.DirectorSSale−15.0K$18.45−$276.8K−30.0%35.1K after
Aug 17, 2026 (view filing)7:42 PM ETAug 134 daysBorges David J.VP, Finance & CAOSSale−5.00K$16.95−$84.8K−100.0%0 after10b5-1
May 27, 2026 (view filing)May 225 daysCable Thomas J.DirectorSSale−7.50K$11.61−$87.1K−17.6%35.1K after10b5-1
Jan 14, 2026 (view filing)Jan 12-132 daysBorges David J.VP, Finance & CAOSSale−60.0K$12.52−$750.9K−100.0%0 after2 lots
Nov 21, 2023 (view filing)Nov 174 daysDemopulos Gregory A MDChairman, CEO & PresidentPPurchase+15.0K$1.68+$25.2K+13.8%123.9K after
Nov 17, 2023 (view filing)Nov 152 daysDemopulos Peter A MDDirectorPPurchase+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.

See all 171 holders
Institutions holding OMER in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.6,044,633$57.5M0.00%+735,007+13.8%Added
Ingalls & Snyder LLC3,659,523$34.8M0.95%+100,100+2.8%Added
UBS Group AG3,148,384$29.9M0.00%+807,653+34.5%Added
Vanguard Capital Management LLC3,072,050$29.2M0.00%+88,791+3.0%Added
State Street Corp2,319,906$22.1M0.00%+400,331+20.9%Added
Geode Capital Management, LLC1,914,460$18.2M0.00%+162,137+9.3%Added
Stifel Financial Corp1,836,925$17.5M0.01%+5,340+0.3%Added
Vanguard Portfolio Management LLC962,828$9.16M0.00%+244,153+34.0%Added
Invesco Ltd.751,771$7.15M0.00%+571,142+316.2%Added
Northern Trust Corp727,348$6.92M0.00%+163,481+29.0%Added