CADENCE DESIGN SYSTEMS INC — Director's Dealing 2010

Aug 23, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CADENCE DESIGN SYSTEMS INC (CDNS)
CIK: 0000813672
Period of Report: 2010-08-19

Reporting Person: LUCAS DONALD L (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-19	Common Stock	P	15000	$6.81	Acquired	35000	Indirect
2010-08-19	Common Stock	P	10000	$6.82	Acquired	45000	Indirect
2010-08-19	Common Stock	P	10000	$6.82	Acquired	55000	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	15000	Indirect

Footnotes

F1: These securities are held by Donald L. Lucas, SUCC TTEE, Donald L. Lucas Profit Sharing Trust dtd 1/1/84.

F2: These securities are held by Donald L. Lucas, TTEE, Donald L. & Lygia S. Lucas Trust dtd 12/3/84.

F3: These securities are held by Donald L. Lucas, TTEE, Donald L. & Lygia S. Lucas Trust dtd 12/3/84.

F4: These securities are held by Donald L. Lucas, TTEE, Donald L. & Lygia S. Lucas Trust dtd 12/3/84.