0001306830-20-000107 4 1 20200425 20200428 20200428 Brown William M 0001350633 4 34 001-32410 20825365 HARRIS CORPORATION 1025 W NASA BOULEVARD MELBOURNE FL 32919 Celanese Corp 0001306830 2820 980420726 DE 1231 222 W. LAS COLINAS BLVD., SUITE 900N IRVING TX 75039-5421 972-443-4000 222 W. LAS COLINAS BLVD., SUITE 900N IRVING TX 75039-5421 Celanese CORP 20041102 Blackstone Crystal Holdings Capital Partners (Cayman) IV Ltd. 20041022 4 1 wf-form4_158810539895041.xml FORM 4 X0306 4 2020-04-25 0 0001306830 Celanese Corp CE 0001350633 Brown William M C/O CELANESE CORPORATION 222 W LAS COLINAS BLVD, SUITE 900N IRVING TX 75039 1 0 0 0 Common Stock 2020-04-25 4 D 0 1404 D 103 D Phantom Stock 2020-04-25 4 A 0 1404 0 A Common Stock 1404.0 7170.161 D Upon vesting of 1,404 Restricted Stock Units granted to the reporting person on April 25, 2019, the reporting person deferred the receipt of 1,404 shares of Common Stock and received instead 1,404 shares of phantom stock pursuant to the Company's 2008 Deferred Compensation Plan. As a result, the reporting person is reporting the disposition of 1,404 shares of Common Stock in exchange for an equal number of shares of phantom stock. Each share of phantom stock represents the right to receive one share of Common Stock. As provided in the 2008 Deferred Compensation Plan, the reported phantom stock becomes payable in shares of Common Stock upon termination of the reporting person's service as a director of the Company subject to certain restrictions and limitations. James R. Peacock III, Attorney-in-Fact for William M. Brown 2020-04-27