Gregory A. Demopulos MD - 13 Oct 2025 Form 4 Insider Report for OMEROS CORP (OMER)

Signature
/s/ Gregory A. Demopulos, M.D.
Issuer symbol
OMER
Transactions as of
13 Oct 2025
Transactions value $
$0
Form type
4
Filing time
15 Oct 2025, 19:16:04 UTC
Previous filing
01 Jul 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Demopulos Gregory A MD Chairman, CEO & President, Director 201 ELLIOTT AVENUE WEST, SEATTLE /s/ Gregory A. Demopulos, M.D. 15 Oct 2025 0001472160

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OMER Common Stock Gift $0 -600K -29.6% $0.00 1.43M 13 Oct 2025 Direct F1
transaction OMER Common Stock Gift $0 +300K $0.00 300K 13 Oct 2025 By trust F1, F2, F3
transaction OMER Common Stock Gift $0 +300K $0.00 300K 13 Oct 2025 By trust F1, F2, F4
holding OMER Common Stock 124K 13 Oct 2025 By spouse F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reporting person made bona fide gifts of Omeros Corporation common stock, each of 300,000 shares, to separate irrevocable trusts established for the benefit of each of the reporting person's two minor children.
F2 The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and nothing in this report shall be deemed an admission that the reporting person is the beneficial owner of such securities under Section 16 of the Securities Exchange Act of 1934 or for any other purpose.
F3 Shares held in the [Demopulos Child #1] Gift Trust, an irrevocable trust established for the benefit of a minor child of the reporting person.
F4 Shares held in the [Demopulos Child #2] Gift Trust, an irrevocable trust established for the benefit of a minor child of the reporting person.