Sec Form 4 Filing - Huang Charlie X. @ CADENCE DESIGN SYSTEMS INC - 2012-11-01

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Huang Charlie X. 2. Issuer Name and Ticker or Trading Symbol CADENCE DESIGN SYSTEMS INC [ CDNS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Sr.Vice President (Last) (First) (Middle) 2655 SEELY AVENUE, BLDG 5 3. Date of Earliest Transaction (MM/DD/YY) 11/01/2012 (Street) SAN JOSE, CA95134 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12,611 I Held by reporting person's spouse. Common Stock 11/01/2012 M( 1 ) 5,000 A $ 9.585 115,247 D Common Stock 11/01/2012 S 5,000 D $ 12.9601 110,247 D Common Stock 11/02/2012 G( 2 ) 3,100 A $ 12.99 23,520 I As Custodian for Children Common Stock 11/02/2012 G( 3 ) 3,100 D $ 12.99 232,388 I Held by Trust

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Non-qualified Stock Option (right to buy) $ 9.585 11/01/2012 M 5,000 03/07/2003 02/07/2013 Common Stock 5,000 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Huang Charlie X. 2655 SEELY AVENUE, BLDG 5 SAN JOSE, CA95134 Sr.Vice President Signatures James J. Cowie, Attorney-in-Fact for Charlie X. Huang 11/05/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Option was granted on February 7, 2003 and is fully vested. Will expire on February 7, 2013. ( 2 )These securities are held in custodial accounts by Reporting Person's spouse for the children of Reporting Person and Reporting Person's spouse. The transfer of securities to these accounts was a bona fide gift from the Huang-Zhang Trust U/A DTD 6/12/96, of which Reporting Person and Reporting Person's spouse are trustees. ( 3 )These securities were held by Huang-Zhang Trust U/A DTD 6/12/96, of which Reporting Person and Reporting Person's spouse are trustees. The transfer of securities from the trust was a bona fide gift for the children of Reporting Person and Reporting Person's spouse.

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).

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