Gregory A. Demopulos owns 3.03% of Omeros
2,193,253 shares as of the July 22, 2026 filing, worth $35.5M at the latest close.
OMER · $1.2B market cap · Founder-ledGet an email when Gregory A. Demopulos’s stake moves.
Free.
The stake
3.03%
worth $35.5M at the latest close
Stake rank
#884
by dollar value of the stake
Last sale
3,608 days ago
Dec 2, 2016
Last buy
1,067 days ago
Nov 17, 2023 · $25,200
Gregory A. Demopulos owns 3.03% of OMEROS CORP: 2,193,253 of 72,388,316 shares, worth about $35.5M at the 2026-10-16 close. The stake has moved from 4.45% in 2016 to 3.03% on 2026-08-07, across 1 sale and 1 purchase that moved it since 2016. The last trade that moved it was a discretionary purchase of $25,200 on 2023-11-17.
How the stake is held
as of the Feb 18, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Feb 18, 2026 · Form 4 ↗
HELD DIRECTLY
1,469,308
67.0%
HELD INDIRECTLY · 2 VEHICLES
723,945
33.0%
By trust
600,000
27.4%
By spouse
123,945
5.7%
THE STAKE
2,193,253
3.03%