Aaron M. McGilvray - 27 Feb 2026 Form 4 Insider Report for Celanese Corp (CE)

Role: Chief Accounting Officer
Signature: /s/ Adam R. Santosuosso, Attorney-in-Fact for Aaron M. McGilvray
Issuer symbol: CE
Transactions as of: 27 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 03 Mar 2026, 16:18:42 UTC
Previous filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
McGilvray Aaron M	Chief Accounting Officer	222 W LAS COLINAS BLVD SUITE 900N, IRVING	/s/ Adam R. Santosuosso, Attorney-in-Fact for Aaron M. McGilvray	03 Mar 2026	0001917582

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CE	Common Stock	Award	$0	+1,687	+16%	$0.000000	11,991	27 Feb 2026	Direct	F1
holding	CE	Common Stock						834	27 Feb 2026	by 401(k) Plan

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CE	Nonqualified Stock Option (right to buy)	Award	$0	+2,355		$0.000000	2,355	27 Feb 2026	Common Stock	2,355	$49.09	Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Time-based restricted stock units ("RSUs") granted pursuant to the Company's Amended and Restated 2018 Global Incentive Plan (the "Plan"). Each RSU represents the right to receive one share of Common Stock. The RSUs will vest, subject to continued employment, with respect to 33% of the RSUs on each of February 15, 2027 and February 15, 2028, and with respect to 34% of the RSUs on February 15, 2029.
F2	Time-based employee stock options granted under the Plan.
F3	The options vest and become exercisable, subject to continued employment, in three annual installments of 33%, 33% and 34% beginning February 15, 2027.