Celanese (CE) CAO Aaron McGilvray receives new RSU and option grants

Rhea-AI Filing Summary

McGilvray Aaron M reported acquisition or exercise transactions in this Form 4 filing.

Celanese Corp Chief Accounting Officer Aaron M. McGilvray received new equity awards. He was granted nonqualified stock options for 2,355 shares and time-based restricted stock units covering 1,687 shares of common stock at no cost.

The RSUs vest 33% on February 15, 2027 and 2028, and 34% on February 15, 2029, if employment continues. The options vest in three annual installments of 33%, 33%, and 34% beginning February 15, 2027. He also reports indirect holdings through a 401(k) plan.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider McGilvray Aaron M

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Nonqualified Stock Option (right to buy)	2,355	$0.00	--
Grant/Award	Common Stock	1,687	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Nonqualified Stock Option (right to buy) — 2,355 shares (Direct); Common Stock — 11,991.378 shares (Direct); Common Stock — 833.834 shares (Indirect, by 401(k) Plan)

Footnotes (1)

1. 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. Time-based employee stock options granted under the Plan. The options vest and become exercisable, subject to continued employment, in three annual installments of 33%, 33% and 34% beginning February 15, 2027.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

McGilvray Aaron M

(Last) (First) (Middle)

222 W LAS COLINAS BLVD SUITE 900N

(Street)

IRVING TX 75039

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Celanese Corp [ CE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/27/2026		A		1,687(1)	A	$0	11,991.378	D
Common Stock								833.834	I	by 401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Nonqualified Stock Option (right to buy)(2)	$49.09	02/27/2026		A		2,355		(3)	02/26/2036	Common Stock	2,355	$0	2,355	D

Explanation of Responses:

1. 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.

2. Time-based employee stock options granted under the Plan.

3. The options vest and become exercisable, subject to continued employment, in three annual installments of 33%, 33% and 34% beginning February 15, 2027.

Remarks:

	/s/ Adam R. Santosuosso, Attorney-in-Fact for Aaron M. McGilvray	03/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Celanese (CE) report for Aaron M. McGilvray?

Aaron M. McGilvray received equity awards, including nonqualified stock options for 2,355 shares and time-based restricted stock units covering 1,687 shares of Celanese common stock. These grants represent compensation awards rather than open-market purchases or sales of existing shares.

How do Aaron McGilvray’s new Celanese (CE) RSUs vest over time?

The time-based restricted stock units vest 33% on February 15, 2027, 33% on February 15, 2028, and 34% on February 15, 2029. Vesting is conditioned on continued employment with Celanese throughout the applicable vesting periods.

What are the terms of Aaron McGilvray’s new Celanese (CE) stock options?

Aaron McGilvray received time-based employee stock options under Celanese’s 2018 Global Incentive Plan. The options vest and become exercisable in three installments of 33%, 33%, and 34%, beginning on February 15, 2027, subject to his continued employment with the company.

Are Aaron McGilvray’s recent Celanese (CE) equity awards open-market buys?

No, the reported transactions are equity compensation grants, not open-market purchases. They consist of nonqualified stock options and time-based restricted stock units awarded under Celanese’s Amended and Restated 2018 Global Incentive Plan at a stated price of zero dollars per share.

Does Aaron McGilvray hold Celanese (CE) shares indirectly through a retirement plan?

Yes, the filing notes indirect ownership of Celanese common stock through a 401(k) plan. These holdings are reported separately from his directly held shares and equity awards, reflecting shares accumulated within the company’s retirement savings arrangement.

What is the purpose of Celanese’s 2018 Global Incentive Plan for insiders like Aaron McGilvray?

Celanese’s Amended and Restated 2018 Global Incentive Plan provides equity-based compensation, such as RSUs and stock options, to key employees. For executives like Aaron McGilvray, these awards align long-term incentives with shareholder interests through time-based vesting and potential future share ownership.