P Richard Wallace

Insider Trading: Sales

Company	Symbol	Price	Amount	Relationship	Remaining Holdings	Date	Form 4
Kla Tencor Corp	KLAC	$49.90	20,000	Officer, Director	54,415	2012-05-15	Filing
Kla Tencor Corp	KLAC	$54.00	11,660	Officer, Director	74,415	2012-03-26	Filing
Kla Tencor Corp	KLAC	$52.75	27,084	Officer, Director	86,075	2012-03-20	Filing
Kla Tencor Corp	KLAC	$52.00	11,660	Officer, Director	86,075	2012-02-01	Filing
Kla Tencor Corp	KLAC	$51.54	21,000	Officer, Director	97,735	2012-01-31	Filing
Kla Tencor Corp	KLAC	$52.75	97,916	Officer, Director	117,735	2012-01-27	Filing
Kla Tencor Corp	KLAC	$49.75	16,662	Officer, Director	117,735	2012-01-18	Filing
Kla Tencor Corp	KLAC	$49.75	30,643	Officer, Director	41,591	2011-02-17	Filing
Kla Tencor Corp	KLAC	$44.64	10,000	Officer, Director	55,734	2011-02-01	Filing
Kla Tencor Corp	KLAC	$44.00	75,023	Officer, Director	55,734	2011-01-26	Filing
Kla Tencor Corp	KLAC	$41.84	18,792	Officer, Director	106,965	2011-01-14	Filing
Kla Tencor Corp	KLAC	$41.84	9,000	Officer, Director	125,757	2011-01-14	Filing
Kla Tencor Corp	KLAC	$34.62	7,000	Officer, Director	125,757	2010-10-11	Filing