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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
813672	Cadence Design Systems Inc	CDNS	Services-Prepackaged Software (7372)	770148231

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1008463	Bu Lip Tan	2655 Seely Avenue, Bldg. 5 San Jose CA 95134	Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2021-08-16	4,154	$151.87	739,766	No	4	F	Direct
Common Stock	Disposition	2021-08-16	3,782	$0.00	735,984	No	5	G	Direct
Common Stock	Acquisiton	2021-08-16	3,782	$0.00	1,308,915	No	5	G	Indirect	Held by Trust 2
Common Stock	Acquisiton	2021-08-16	50,000	$17.16	785,984	No	4	M	Direct
Common Stock	Disposition	2021-08-16	37,100	$151.40	748,884	No	4	S	Direct
Common Stock	Disposition	2021-08-16	12,900	$152.02	735,984	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	F	Direct
No	5	G	Direct
No	5	G	Indirect	Held by Trust 2
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2021-08-16	50,000	$0.00	50,000	$17.16

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
100,000	2015-03-09	2022-02-09	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	15,000	Indirect	Held by Trust 1
Common Stock	7,000	Indirect	Held by Trust 3
Common Stock	31,400	Indirect	Held by IRA

Footnotes

Shares withheld to satisfy tax obligations arising out of vesting of restricted stock.
Amount of securities beneficially owned includes 26 shares acquired by the Reporting Person through the Employee Stock Purchase Plan on July 30, 2021.
Shares held by the Lip-Bu Tan and Ysa Loo Trust dated 2/3/1992.
The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person.
Shares held by A&E Investment LLC, the sole member of which is the Lip-Bu Tan and Ysa Loo Trust dated 2/3/1992.
Shares held by L Tan & N Lee TTEE, Pacven Walden Inc. 401(K) PSPS, FBO Lip-Bu Tan.
Shares held by IRA FBO Lip-Bu Tan DB Securities Inc. Custodian Rollover Account DTD 5/19/1997.