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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
319201	Kla Tencor Corp	KLAC	Optical Instruments & Lenses (3827)	042564110

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1186083	T Robert Bond	C/O Kla-Tencor Corporation One Technology Drive Milpitas CA 95035		Yes	No	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	Acquisiton	2013-01-29	1,250	$51.98	1,250	No	4	M	Direct
Common Stock	Disposition	2013-01-29	1,250	$55.47	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	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	2013-01-29	1,250	$0.00	1,250	$51.98

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2013-01-31	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	13,763	Indirect	by Trust
Common Stock - Restricted Stock Units	2,558	Direct

Footnotes

This transaction was executed in multiple trades at prices ranging from $55.466 to $55.47. The price reported above reflects the weighted-average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.
Shares held under The Robert T. Bond and Kathleen S. Bond Trust Agreement originally dated January 12, 1984 (as amended and restated to date), a trust of which the Reporting Person is a trustee and beneficiary.
Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.
Represents a stock option granted on January 31, 2006, granting the Reporting Person the right to purchase up to 1,250 shares of KLA-Tencor common stock. All of the shares subject to this stock option vested immediately and were exercisable on January 31, 2006.