Cadence Design Systems Inc - Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Expires: January 31, 2008 Estimated average burden hours per response... 0.5
	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

1. Name and Address of Reporting Person ^*

Cowie James J

2. Date of Event Requiring Statement (MM/DD/YYYY) 4/1/2008

3. Issuer Name and Ticker or Trading Symbol

CADENCE DESIGN SYSTEMS INC [CDNS]

(Last) (First) (Middle)

2655 SEELY AVENUE, BLDG. 5

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
Sr. VP, General Counsel /

(Street)

SAN JOSE, CA 95134

(City) (State) (Zip)

5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	78626	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Non-qualified Stock Option (right to buy)	⁽¹⁾	8/25/2010	Common Stock	25000	$20.1875	D
Non-qualified Stock Option (right to buy)	⁽²⁾	4/30/2014	Common Stock	5834	$13.04	D
Non-qualified Stock Option (right to buy)	⁽³⁾	12/9/2015	Common Stock	10000	$17.89	D
Non-qualified Stock Option (right to buy)	⁽⁴⁾	4/1/2015	Common Stock	60000	$10.93	D

Explanation of Responses:
( 1)	Option was granted on August 25, 2000 and is fully vested.
( 2)	Option was granted on April 30, 2004 and vests at a rate of 1/48th per month thereafter.
( 3)	Option was granted on December 9, 2005 and vests at a rate of 1/48th per month thereafter.
( 4)	Option was granted on April 1, 2008 and vests at a rate of 1/48th per month thereafer.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Cowie James J 2655 SEELY AVENUE, BLDG. 5 SAN JOSE, CA 95134			Sr. VP, General Counsel

Signatures
James J. Cowie		4/8/2008
^** 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 5(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.