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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
701811	Mentor Graphics Corp	MENT	Services-Computer Integrated Systems Design (7373)	930786033

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1239184	Don L Maulsby	C/O Mentor Graphics Corporation 8005 Sw Boeckman Road Wilsonville OR 97070-7777	Senior Vice President	No	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
Common Stock	Acquisiton	2012-09-14	5,879	$0.00	25,236	No	4	M	Direct
Common Stock	Disposition	2012-09-14	2,143	$17.19	23,093	No	4	F	Direct
Common Stock	Acquisiton	2012-09-14	7,100	$8.91	30,193	No	4	M	Direct
Common Stock	Disposition	2012-09-14	7,100	$17.15	23,093	No	4	S	Direct
Common Stock	Acquisiton	2012-09-14	22,157	$10.35	45,250	No	4	M	Direct
Common Stock	Disposition	2012-09-14	22,157	$17.15	23,093	No	4	S	Direct
Common Stock	Acquisiton	2012-09-15	6,244	$0.00	29,337	No	4	M	Direct
Common Stock	Disposition	2012-09-15	2,276	$16.94	27,061	No	4	F	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	F	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	F	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Unit	Disposition	2012-09-14	5,879	$0.00	5,879	$0.00
Common Stock	Stock Option	Disposition	2012-09-14	7,100	$8.91	7,100	$8.91
Common Stock	Stock Option	Disposition	2012-09-14	22,157	$10.35	22,157	$10.35
Common Stock	Restricted Stock Unit	Disposition	2012-09-15	6,244	$0.00	6,244	$0.00

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
17,639		No	4	M	Direct
19,259	2019-12-22	No	4	M	Direct
24,086	2020-09-15	No	4	M	Direct
12,488		No	4	M	Direct

Footnotes

Restricted stock units (RSUs) vest annually over four years where 25% of the total shares vest on each of the first four anniversaries of the grant date.
No expiration date applies.
Options becomes exercisable over a four year period where on 12/22/2010, 25% of the total shares granted vest and an additional 1/48th vest each month thereafter.
Options becomes exercisable over a four year period where on 9/15/2011, 25% of the total shares granted vest and an additional 1/48th vest each month thereafter.