CDNS Cadence Design Systems Inc

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. __)

Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

[_] Rule 13d-1(b)

[X] Rule 13d-1(c)

[_] Rule 13d-1(d)

CUSIP No. 127387108
 ---------------------

1. NAME OF REPORTING PERSONS
 I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

 Ahmet H. Okumus

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
 (a) [_]
 (b) [X]
3. SEC USE ONLY



4. CITIZENSHIP OR PLACE OF ORGANIZATION

 Republic of Turkey

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5. SOLE VOTING POWER

 0

6. SHARED VOTING POWER

 13,090,178

7. SOLE DISPOSITIVE POWER

 0

8. SHARED DISPOSITIVE POWER

 13,090,178

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 13,090,178

10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
 SHARES (SEE INSTRUCTIONS)

 [_]
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

 5.0%

12. TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

 IN

CUSIP No. 127387108
 ---------------------

Item 1(a). Name of Issuer:


 Cadence Design Systems, Inc.
 --------------------------------------------------------------------

 (b). Address of Issuer's Principal Executive Offices:

 2655 Seely Avenue, Building 5
 San Jose, California 95134
 --------------------------------------------------------------------


Item 2(a). Names of Persons Filing:

 Ahmet H. Okumus
 --------------------------------------------------------------------

 (b). Address of Principal Business Office, or if None, Residence:

 850 Third Avenue, 10th Floor
 New York, New York 10022
 --------------------------------------------------------------------

 (c). Citizenship:

 Ahmet H. Okumus - Republic of Turkey
 --------------------------------------------------------------------

 (d). Title of Class of Securities:


 Common Stock, par value $0.01 (the "Common Stock")
 --------------------------------------------------------------------

 (e). CUSIP Number:

 127387108
 --------------------------------------------------------------------


Item 3. If This Statement is filed pursuant to ss.240.13d-1(b) or
 240.13d-2(b), or (c), check whether the person filing is a:

 (a) [_] Broker or dealer registered under Section 15 of the Exchange Act
 (15 U.S.C. 78c).

 (b) [_] Bank as defined in Section 3(a)(6) of the Exchange Act (15
 U.S.C. 78c).

(c) [_] Insurance company as defined in Section 3(a)(19) of the Exchange Act (15 U.S.C. 78c).

(d) [_] Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [_] An investment adviser in accordance with s.240.13d-1(b)(1)(ii)(E);

(f) [_] An employee benefit plan or endowment fund in accordance with
s.240.13d-1(b)(1)(ii)(F);

(g) [_] A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);

(h) [_] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C.1813);

(i) [_] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [_] Group, in accordance with s.240.13d-1(b)(1)(ii)(J).

Item 4. Ownership.

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a) Amount beneficially owned:

(b) Percent of class:

(c) Number of shares as to which the person has:

Ahmet H. Okumus

(i) Sole power to vote or to direct the vote 0 ---------------------,

(ii) Shared power to vote or to direct the vote 13,090,178 ---------------------,

(iii) Sole power to dispose or to direct the 0
 disposition of ---------------------,


(iv) Shared power to dispose or to direct the 13,090,178
 disposition of ---------------------,

Item 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ].

Item 6. Ownership of More Than Five Percent on Behalf of Another Person.

If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than five percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.

Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on by the Parent Holding Company or Control Person.

Item 8. Identification and Classification of Members of the Group.

Item 9. Notice of Dissolution of Group.

Item 10. Certification.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: November 3, 2008


 /s/ Ahmet H. Okumus*
 ----------------------------
 Ahmet H. Okumus

* The Reporting Person disclaims beneficial ownership in the Common Stock, except to the extent of his pecuniary interest therein.

Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001).

SK 21952 0001 932358

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