Donald L. Althoff - 03 Feb 2026 Form 4 Insider Report for Ecovyst Inc. (ECVT)

Role: Director
Signature: /s/ Joseph S. Koscinski, as attorney-in-fact for Donald L. Althoff
Issuer symbol: ECVT
Transactions as of: 03 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 05 Feb 2026, 16:04:52 UTC
Previous filing: 05 Feb 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Althoff Donald L.	Director	C/O ECOVYST INC., 600 LEE ROAD, SUITE 200, WAYNE	/s/ Joseph S. Koscinski, as attorney-in-fact for Donald L. Althoff	05 Feb 2026	0002023079

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ECVT	Common Stock	Award	$0	+19,399	+50%	$0.000000	58,376	03 Feb 2026	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.