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Omeros Corporation

OMER
Healthcare|Biotechnology|US
$16.92
-0.15 (-0.88%)
Cash / Share
$1.83

Ownership Breakdown

95.7%
Float
72.4M
Shares Outstanding
69.3M
Float Shares

Major Holders (2)

Combined: 13.0%

Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.

HolderType% of ClassSharesFiledFiling
BlackRock, Inc.Holding company8.20%5,961,792Jul 29, 202613D/G
Ingalls & Snyder LLCBD, IA4.80%3,466,268Apr 23, 202613D/G

Insider Trades (100)

Last 4 quarters: 2,373,406 acquired · 1,084,490 disposed
InsiderPositionDateTypeSharesPriceValueFiling
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentOct 28, 2026AWARD500,000$17.88$8.9MForm 4
Borges David J.VP, Finance & CAOSep 22, 2026OPTION EX.5,000$2.94$14.7KForm 4
Borges David J.VP, Finance & CAOSep 23, 2026OPTION EX.10,000$15.58$155.8KForm 4
Borges David J.VP, Finance & CAOSep 22, 2026OPTION EX.5,000$2.94$14.7KForm 4
Borges David J.VP, Finance & CAOSep 22, 2026OPTION EX.5,000$3.93$19.6KForm 4
Borges David J.VP, Finance & CAOSep 23, 2026OPTION EX.10,000$15.58$155.8KForm 4
Borges David J.VP, Finance & CAOSep 22, 2026OPTION EX.5,000$3.93$19.6KForm 4
Borges David J.VP, Finance & CAOSep 23, 2026SELL10,000$20.95$209.5KForm 4
Cancelmo Peter BVP, General CounselAug 28, 2026OPTION EX.25,000$2.94$73.5KForm 4
Cancelmo Peter BVP, General CounselAug 31, 2026OPTION EX.25,000$2.94$73.5KForm 4
Cancelmo Peter BVP, General CounselAug 31, 2026OPTION EX.25,000$2.94$73.5KForm 4
Cancelmo Peter BVP, General CounselAug 28, 2026SELL25,000$18.65$466.1KForm 4
Cancelmo Peter BVP, General CounselAug 31, 2026SELL25,000$18.54$463.5KForm 4
HANISH ARNOLD CdirectorAug 27, 2026OPTION EX.7,500$14.66$110.0KForm 4
HANISH ARNOLD CdirectorAug 27, 2026SELL5,000$18.88$94.4KForm 4
HANISH ARNOLD CdirectorAug 26, 2026OPTION EX.5,000$15.81$79.0KForm 4
HANISH ARNOLD CdirectorAug 27, 2026OPTION EX.2,500$15.81$39.5KForm 4
HANISH ARNOLD CdirectorAug 26, 2026OPTION EX.5,000$15.81$79.0KForm 4
HANISH ARNOLD CdirectorAug 26, 2026SELL5,000$18.53$92.6KForm 4
HANISH ARNOLD CdirectorAug 27, 2026SELL5,000$19.02$95.1KForm 4
HANISH ARNOLD CdirectorAug 27, 2026OPTION EX.2,500$15.81$39.5KForm 4
HANISH ARNOLD CdirectorAug 27, 2026OPTION EX.7,500$14.66$110.0KForm 4
Borges David J.VP, Finance & CAOAug 21, 2026OPTION EX.4,094$2.94$12.0KForm 4
Borges David J.VP, Finance & CAOAug 24, 2026OPTION EX.906$2.94$2.7KForm 4
Borges David J.VP, Finance & CAOAug 21, 2026OPTION EX.4,094$2.94$12.0KForm 4
Borges David J.VP, Finance & CAOAug 21, 2026OPTION EX.5,906$3.93$23.2KForm 4
Borges David J.VP, Finance & CAOAug 21, 2026OPTION EX.5,906$3.93$23.2KForm 4
Borges David J.VP, Finance & CAOAug 24, 2026OPTION EX.906$2.94$2.7KForm 4
Borges David J.VP, Finance & CAOAug 24, 2026SELL906$19.10$17.3KForm 4
Borges David J.VP, Finance & CAOAug 21, 2026SELL10,000$18.95$189.5KForm 4
Cable Thomas J.directorAug 20, 2026OPTION EX.7,500$3.93$29.5KForm 4
Cable Thomas J.directorAug 20, 2026OPTION EX.7,500$2.00$15.0KForm 4
Cable Thomas J.directorAug 20, 2026SELL15,000$18.45$276.8KForm 4
Cable Thomas J.directorAug 20, 2026OPTION EX.7,500$2.00$15.0KForm 4
Cable Thomas J.directorAug 20, 2026OPTION EX.7,500$3.93$29.5KForm 4
Schocken Joseph LdirectorAug 12, 2026AWARD30,000$13.71$411.3KForm 4
Schocken Joseph LdirectorAug 12, 2026OTHER0——Form 4
Schocken Joseph LdirectorAug 12, 2026OTHER0——Form 4
Schocken Joseph LdirectorAug 12, 2026OTHER0——Form 4
Borges David J.VP, Finance & CAOAug 13, 2026OPTION EX.5,000$3.93$19.6KForm 4
Borges David J.VP, Finance & CAOAug 13, 2026OPTION EX.5,000$3.93$19.6KForm 4
Borges David J.VP, Finance & CAOAug 13, 2026SELL5,000$16.95$84.8KForm 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentJul 22, 2026AWARD1,000,000$9.84$9.8MForm 4
Cancelmo Peter BVP, General CounselJul 22, 2026AWARD105,000$9.84$1.0MForm 4
Borges David J.VP, Finance & CAOJul 22, 2026AWARD105,000$9.84$1.0MForm 4
Shah RajivdirectorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
Perkinson Diana T.directorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
Hood Leroy E. MD PhDdirectorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
HANISH ARNOLD CdirectorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
Demopulos Peter A MDdirectorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
Cable Thomas J.directorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
Bumol Thomas F.directorJun 18, 2026AWARD15,000$10.28$154.2KForm 4
Cable Thomas J.directorMay 22, 2026OPTION EX.7,500$10.84$81.3KForm 4
Cable Thomas J.directorMay 22, 2026SELL7,500$11.61$87.0KForm 4
Cable Thomas J.directorMay 22, 2026OPTION EX.7,500$10.84$81.3KForm 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentFeb 18, 2026OPTION EX.400,000$10.27$4.1MForm 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentFeb 18, 2026TAX W/H357,678$11.93$4.3MForm 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentFeb 18, 2026OPTION EX.400,000$10.27$4.1MForm 4
Borges David J.VP, Finance & CAOJan 13, 2026OPTION EX.30,000$3.06$91.8KForm 4
Borges David J.VP, Finance & CAOJan 13, 2026OPTION EX.30,000$3.06$91.8KForm 4
Borges David J.VP, Finance & CAOJan 12, 2026SELL30,000$12.72$381.6KForm 4
Borges David J.VP, Finance & CAOJan 13, 2026SELL30,000$12.31$369.3KForm 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentOct 13, 2025GIFT600,000——Form 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentOct 13, 2025GIFT300,000——Form 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentJun 30, 2025AWARD865,000$3.20$2.8MForm 4
Cancelmo Peter BVP, General CounselJun 30, 2025AWARD100,000$3.20$320.0KForm 4
Borges David J.VP, Finance & CAOJun 30, 2025AWARD95,000$3.20$304.0KForm 4
Shah RajivdirectorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
Perkinson Diana T.directorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
Hood Leroy E. MD PhDdirectorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
HANISH ARNOLD CdirectorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
Demopulos Peter A MDdirectorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
Cable Thomas J.directorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
Bumol Thomas F.directorJun 27, 2025AWARD15,000$3.20$48.0KForm 4
Borges David J.VP, Finance & CAOJun 30, 2024DISPOSED0——Form 4
Borges David J.VP, Finance & CAOJun 30, 2024DISPOSED6,800$14.99$101.9KForm 4
Borges David J.VP, Finance & CAOJun 30, 2024DISPOSED25,000$2.94$73.5KForm 4
Borges David J.VP, Finance & CAOJun 30, 2024DISPOSED95,000$3.06$290.7KForm 4
Borges David J.VP, Finance & CAOJun 30, 2024DISPOSED20,000$3.93$78.6KForm 4
Borges David J.VP, Finance & CAOJun 30, 2024DISPOSED15,000$15.58$233.7KForm 4
Shah RajivdirectorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
Perkinson Diana T.directorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
Hood Leroy E. MD PhDdirectorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
HANISH ARNOLD CdirectorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
Demopulos Peter A MDdirectorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
Cable Thomas J.directorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
Bumol Thomas F.directorJun 6, 2024AWARD15,000$3.91$58.6KForm 4
Demopulos Gregory A MDdirector, officer: Chairman, CEO & PresidentApr 25, 2024AWARD725,000$3.06$2.2MForm 4
JACOBSEN MICHAEL AVP, Finance & CAOApr 25, 2024AWARD100,000$3.06$306.0KForm 4
Cancelmo Peter BVP, General CounselApr 25, 2024AWARD100,000$3.06$306.0KForm 4
Demopulos Gregory A MDChairman, CEO & PresidentNov 17, 2023BUY15,000$1.68$25.2KForm 4
Demopulos Peter A MDdirectorNov 15, 2023BUY10,000$1.53$15.3KForm 4
Demopulos Gregory A MDChairman, CEO & PresidentNov 14, 2023AWARD25,000$1.44$36.0KForm 4
Demopulos Gregory A MDChairman, CEO & PresidentNov 13, 2023AWARD37,500$1.29$48.4KForm 4
Demopulos Gregory A MDChairman, CEO & PresidentSep 22, 2023AWARD715,000$2.94$2.1MForm 4
JACOBSEN MICHAEL AVP, Finance & CAOSep 22, 2023AWARD100,000$2.94$294.0KForm 4
Cancelmo Peter BVP, General CounselSep 22, 2023AWARD100,000$2.94$294.0KForm 4
Bumol Thomas F.directorSep 12, 2023AWARD10,000$3.31$33.1KForm 4
HANISH ARNOLD CdirectorJun 23, 2023AWARD15,000$5.49$82.3KForm 4
Hood Leroy E. MD PhDdirectorJun 23, 2023AWARD15,000$5.49$82.3KForm 4