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Filing Details

Accession Number:: 0001181431-13-005887
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2013-01-31 19:01:04
Reporting Period:: 2013-01-29

Filing Date:: 2013-01-31
Accepted Time:: 2013-01-31 19:01:04
SEC Url:: Form 4 Filing

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
1186370	P Stephen Kaufman	C/O Kla-Tencor Corporation One Technology Drive Milpitas CA 95035		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2013-01-29	1,250	$51.98	4,789	No	4	M	Direct
Common Stock	Disposition	2013-01-29	1,250	$55.75	3,539	No	4	S	Direct
Common Stock	Acquisiton	2013-01-29	1,250	$47.86	4,789	No	4	M	Direct
Common Stock	Disposition	2013-01-29	1,250	$55.74	3,539	No	4	S	Direct
Common Stock	Acquisiton	2013-01-29	1,250	$41.45	4,789	No	4	M	Direct
Common Stock	Disposition	2013-01-29	1,250	$55.73	3,539	No	4	S	Direct

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

Reported Derivative Transactions

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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
Common Stock	Non-Qualified Stock Option (Right to Buy)	Disposition	2013-01-29	1,250	$0.00	1,250	$47.86
Common Stock	Non-Qualified Stock Option (Right to Buy)	Disposition	2013-01-29	1,250	$0.00	1,250	$41.45

Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
2013-01-31	No	4	M	Direct
2013-05-02	No	4	M	Direct
2013-08-01	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	15,224	Indirect	By Trust
Common Stock - Restricted Stock Units	2,558	Direct

Footnotes

This transaction was executed in multiple trades at prices ranging from $55.732 to $55.742. 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.
This transaction was executed in multiple trades at prices ranging from $55.731 to $55.736. 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 by The Stephen P. Kaufman Trust UAD 5/24/2002, 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.
Represents a stock option granted on May 2, 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 May 2, 2006.
Represents a stock option granted on August 1, 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 August 1, 2006.