Gregory A. Demopulos M.D.

CIK: 0001472160

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)1 (12.5%)

Derivative conversions

Awards (A)3 (37.5%)

Compensation grants

Other (G, F, J, C, D, …)4 (50.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

OMER

OMEROS CORP

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (8 total)

OMER
OMEROS CORP
Oct 28, 2026
Award(A)
Performance Stock Option (right to buy)
Direct
500K shares-
OMER
OMEROS CORP
Jul 22, 2026
Award(A)
Stock Option (right to buy)
Direct
1M shares-
OMER
OMEROS CORP
Feb 18, 2026
Exercise(M)
Direct
400K shares at avg. $10.27$4.1M
OMER
OMEROS CORP
Feb 18, 2026
Tax Payment(F)
Direct
357.7K shares at avg. $11.93$4.3M
OMER
OMEROS CORP
Oct 13, 2025
Gift(G)
Indirect
300K shares-
OMER
OMEROS CORP
Oct 13, 2025
Gift(G)
Indirect
300K shares-
OMER
OMEROS CORP
Oct 13, 2025
Gift(G)
Direct
600K shares-
OMER
OMEROS CORP
Jun 30, 2025
Award(A)
Stock Option (right to buy)
Direct
865K shares-

		Type	Shares	Price		Ownership
Oct 28, 2026	OMER OMEROS CORP	Award(A) Performance Stock Option (right to buy)	500,000	-	-	Direct
Jul 22, 2026	OMER OMEROS CORP	Award(A) Stock Option (right to buy)	1,000,000	-	-	Direct
Feb 18, 2026	OMER OMEROS CORP	Exercise(M)	400,000	$10.27	$4,108,000	Direct
Feb 18, 2026	OMER OMEROS CORP	Tax Payment(F)	357,678	$11.93	$4,267,099	Direct
Oct 13, 2025	OMER OMEROS CORP	Gift(G)	300,000	-	-	Indirect
Oct 13, 2025	OMER OMEROS CORP	Gift(G)	300,000	-	-	Indirect
Oct 13, 2025	OMER OMEROS CORP	Gift(G)	600,000	-	-	Direct
Jun 30, 2025	OMER OMEROS CORP	Award(A) Stock Option (right to buy)	865,000	-	-	Direct

1-8 of 8 transactions

About Demopulos Gregory A MD

Demopulos Gregory A MD (SEC CIK 0001472160) files insider reports with the SEC as Chairman, CEO & President of OMEROS CORP (OMER).

Signal8 holds 5 ownership filings by Demopulos Gregory A MD, all Form 4s, filed between Jul 1, 2025 and Oct 30, 2026. Those filings report 8 transactions, from Jun 30, 2025 to Oct 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Demopulos Gregory A MD's filings is in SEATTLE, WA.

Recent filings by Demopulos Gregory A MD

Oct 28, 2026: Grant or award of OMER derivative securities (Form 4, code A).
Jul 22, 2026: Grant or award of OMER derivative securities (Form 4, code A).
Feb 18, 2026: Option exercise of OMER shares (Form 4, code M).
Feb 18, 2026: Tax withholding of OMER shares (Form 4, code F).
Oct 13, 2025: Gifts of OMER shares (3 lines, Form 4, code G).

Other insiders filing for OMEROS CORP (OMER)

Borges David J., VP, Finance & CAO
Cancelmo Peter B, VP, General Counsel
HANISH ARNOLD C, Director
Cable Thomas J., Director
Schocken Joseph L, Director
Shah Rajiv, Director

How to read Form 4 transaction codes