0001140361-10-040131 4 1 20101001 20101005 20101005 Weidman David N 0001314133 4 34 001-32410 101110285 1601 W. LBJ FREEWAY DALLAS TX 75234 Celanese CORP 0001306830 2820 980420726 DE 1231 1601 W. LBJ FREEWAY DALLAS TX 75234 972-443-4000 1601 W. LBJ FREEWAY DALLAS TX 75234 Blackstone Crystal Holdings Capital Partners (Cayman) IV Ltd. 20041022 4 1 doc1.xml FORM 4 FORM 4 OMB APPROVAL [ ] Check this OMB Number: box if no longer UNITED STATES SECURITIES AND EXCHANGE COMMISSION 3235-0287 subject to Washington, D.C. 20549 Estimated Section 16. Form STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF average burden 4 or Form 5 SECURITIES hours per obligations may response... 0.5 continue. See Instruction 1(b). Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 1. Name and Address of Reporting 2. Issuer Name and Ticker 5. Relationship of Person * or Trading Symbol Reporting Person(s) to Weidman David N Celanese CORP [ CE ] Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title (Last) (First) (Middle) 3. Date of Earliest below) _____ Other C/O CELANESE CORPORATION, 1601 W. Transaction (MM/DD/YYYY) (specify below) LBJ FREEWAY 10/1/2010 Chairman and CEO (Street) 4. If Amendment, Date 6. Individual or DALLAS, TX 75234 Original Filed Joint/Group Filing (Check (City) (State) (Zip) (MM/DD/YYYY) 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 2. Trans. Date 2A. 3. Trans. 4. Securities 5. Amount of 6. Ownership 7. Nature of (Instr. 3) Deemed Code Acquired (A) or Securities Form: Direct Indirect Execution (Instr. 8) Disposed of (D) Beneficially (D) or Indirect Beneficial Date, if (Instr. 3, 4 and Owned Following (I) (Instr. 4) Ownership any 5) Reported (Instr. 4) Transaction(s) (A) (Instr. 3 and or 4) Code V Amount (D) Price Series A Common 10/1/2010 F 3937 D $32.35 423751 D Stock (1) Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of 2. 3. Trans. Date 3A. 4. Trans. 5. Number of 6. Date Exercisable 7. Title and Amount of 8. Price 9. Number of 10. 11. Nature Derivate Conversion Deemed Code Derivative and Expiration Date Securities Underlying of derivative Ownership of Security or Execution (Instr. 8) Securities Derivative Security Derivative Securities Form of Indirect (Instr. 3) Exercise Date, if Acquired (A) or (Instr. 3 and 4) Security Beneficially Derivative Beneficial Price of any Disposed of (D) (Instr. 5) Owned Security: Ownership Derivative (Instr. 3, 4 and Following Direct (D) (Instr. 4) Security 5) Reported or Transaction(s) Indirect Date Expiration Amount or (Instr. 4) (I) Exercisable Date Title Number of (Instr. 4) Code V (A) (D) Shares Non-Qualified Series A Stock Option $32.35 10/1/2010 A 68495 (2) (2) Common 68495 (2) 68495 D (right to Stock buy) (2) Explanation of Responses: (1) Shares withheld for the payment of taxes on the vesting of Restricted Stock Units granted to the reporting person on October 1, 2009. (2) Granted pursuant to the Company's 2009 Global Incentive Plan. The options will vest, subject to continued employment, with respect to 25% of the options on each of October 1, 2011, October 1, 2012, October 1, 2013 and October 1, 2014. Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Weidman David N C/O CELANESE CORPORATION X Chairman and CEO 1601 W. LBJ FREEWAY DALLAS, TX 75234 Signatures /s/ Alexander M Ludlow, Attorney-in-Fact for David N. Weidman 10/5/2010 ** 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 control number.