OMEROS CORP 4

Insider Thomas J. Cable exercised 15,000 stock options and sold 15,000 Omeros Corp (OMER) common shares on August 20, 2026, ending with 35,067 shares held directly.

On August 20, 2026, Omeros Corp insider Thomas J. Cable exercised two tranches of stock options for a total of 15,000 shares of common stock at exercise prices of $2.00 and $3.93 per share and subsequently sold 15,000 common shares in the open market at a weighted average price of $18.4515. The first option exercise converted 7,500 options with a $2.00 strike (originally granted June 22, 2023 and expiring June 17, 2032) into 7,500 common shares, increasing Cable’s direct ownership to 42,567 shares, and the second exercise converted another 7,500 options with a $3.93 strike (granted June 22, 2023 and expiring September 21, 2032) into 7,500 common shares, raising his direct holdings to 50,067 shares. He then sold 15,000 shares on the same date at an average of $18.4515 per share (with individual trades ranging from $18.23 to $18.72), reducing his direct holdings to 35,067 shares. Based on the reported sale price, his remaining direct stake is worth approximately $647,000, while the gross value of the exercised-and-sold shares was roughly $276,800, representing a non-trivial but not exceptionally large liquidity event that appears primarily as an option exercise and associated sale rather than a pure open-market disposition.

Filing Facts

CIK

1285819

Ticker

OMER

Form

4

Source Type

fda

Accession

0001437749-26-028754

Alert Tier

6