0001116679-05-001314 4 1 20050429 20050503 20050503 Loeser David 0001322805 4 34 001-32410 05793926 831-443-4000 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 edgar.xml PRIMARY DOCUMENT 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 Loeser David Celanese CORP [ CE ] Issuer (Check all applicable) _____ 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 4/29/2005 Sr. VP HR & Communications (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 5) Owned Following (I) (Instr. 4) Ownership any Reported (Instr. 4) Transaction(s) (A) (Instr. 3 and or 4) Code V Amount (D) Price Series A Common Stock 4/29/2005 A 26500 A (1) 26500 D Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of 2. 3. Trans. Date 3A. 4. Trans. Code 5. Number of 6. Date Exercisable 7. Title and Amount of 8. Price 9. Number of 10. 11. Nature Derivate Security Conversion Deemed (Instr. 8) Derivative and Expiration Date Securities Underlying of derivative Ownership of (Instr. 3) or Execution Securities Acquired Derivative Security Derivative Securities Form of Indirect Exercise Date, if (A) or Disposed of (Instr. 3 and 4) Security Beneficially Derivative Beneficial Price of any (D) (Instr. 5) Owned Security: Ownership Derivative (Instr. 3, 4 and 5) Following Direct (D) (Instr. 4) Security Reported or Transaction(s) Indirect Date Expiration Amount or (Instr. 4) (I) Exercisable Date Title Number of (Instr. 4) Code V (A) (D) Shares Stock Option Series A (Right to Buy) (2) 4/29/2005 (2) J (2) 0 (2) (2) 4/29/2005 Common 9400 $16.00 0 D Stock Explanation of Responses: (1) The reporting person purchased the Series A common stock at a price of $7.20 per share from the Company pursuant to the Company's 2004 Stock Incentive Plan. (2) Upon his employment with the Company, the reporting person received a right to purchase shares of Series A common stock at a purchase price of $16 per share, which right expired when the reporting person accepted the right to purchase shares offered at $7.20 per share, but did not exercise the right to purchase shares offered at $16 per share. Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Loeser David C/O CELANESE CORPORATION Sr. VP HR & Communications 1601 W. LBJ FREEWAY DALLAS, TX 75234 Signatures /s/ Mai-Anh Nguyen, on behalf of David Loeser 5/2/2005 ** 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.