KLAC

SEC source: 0001628280-18-010939 · wf-form4_153384542573506.xml · nonDerivative · entry 1

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 649

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 9, 2017.

SEC source: 0001628280-18-010940 · wf-form4_153384545931291.xml · nonDerivative · entry 6

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,689

F4 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 7, 2018.

SEC source: 0001628280-18-010940 · wf-form4_153384545931291.xml · nonDerivative · entry 5

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,823

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: On August 7, 2014, the Reporting Person was granted an RSU for 9,150 shares of KLA-Tencor Common Stock. On August 7, 2018, the remaining 25% of those shares vested.

SEC source: 0001628280-18-010940 · wf-form4_153384545931291.xml · nonDerivative · entry 4

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,395

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F5 · shares: On August 7, 2014, the Reporting Person was granted an RSU for 9,150 shares of KLA-Tencor Common Stock. On August 7, 2018, the remaining 25% of those shares vested.

F3 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010940 · wf-form4_153384545931291.xml · nonDerivative · entry 3

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,536

F4 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 7, 2018.

SEC source: 0001628280-18-010940 · wf-form4_153384545931291.xml · nonDerivative · entry 2

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,191

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On August 7, 2014, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 11,437 shares (based on 125% of the target shares of 9,150) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 31, 2017 the Compensation Committee of KLA-Tencor's Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 10,705. On August 7, 2018, the remaining 50% of the shares subject to the RSUs vested.

SEC source: 0001628280-18-010940 · wf-form4_153384545931291.xml · nonDerivative · entry 1

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,682

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F2 · shares: On August 7, 2014, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 11,437 shares (based on 125% of the target shares of 9,150) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 31, 2017 the Compensation Committee of KLA-Tencor's Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 10,705. On August 7, 2018, the remaining 50% of the shares subject to the RSUs vested.

F3 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 9

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,832

F7 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 7, 2018.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 8

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,285

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · shares: On August 7, 2014, the Reporting Person was granted an RSU for 3,650 shares of KLA-Tencor Common Stock. On August 7, 2018, the remaining 25% of those shares vested.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 7

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,677

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each RSU represents a contingent right to receive one share of KLA-Tencor common stock.

F8 · shares: On August 7, 2014, the Reporting Person was granted an RSU for 3,650 shares of KLA-Tencor Common Stock. On August 7, 2018, the remaining 25% of those shares vested.

F6 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 6

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,373

F7 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 7, 2018.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 5

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,432

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: On August 7, 2014, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 4,562 shares (based on 125% of the target shares of 3,650) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 31, 2017 the Compensation Committee of KLA-Tencor's Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 4,270. On August 7, 2018, the remaining 50% of the shares vested.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 4

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,589

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each RSU represents a contingent right to receive one share of KLA-Tencor common stock.

F5 · shares: On August 7, 2014, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 4,562 shares (based on 125% of the target shares of 3,650) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 31, 2017 the Compensation Committee of KLA-Tencor's Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 4,270. On August 7, 2018, the remaining 50% of the shares vested.

F6 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 3

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on January 31, 2018.

F3 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $118.33 to $119.07. The reporting person will provide upon request full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 2

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 851

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on January 31, 2018.

SEC source: 0001628280-18-010942 · wf-form4_153384549001295.xml · nonDerivative · entry 1

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 951

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on January 31, 2018.

F2 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $117.11 to $118.04. The reporting person will provide upon request full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 7

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,635

F5 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 6

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,181

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 4,400 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 5

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,724

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Each RSU represents a contingent right to receive one share of KLA-Tencor common stock.

F6 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 4,400 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

F4 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 4

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,081

F5 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 3

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,025

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also grantedRSUs covering up to a maximum of 5,500 shares (based on 125% of the target shares of 4,400) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements.On August2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determinedthat thenumber of shares subject to the RSUs is 5,456. On August 6, 2018, 50% of the RSUs vested.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 2

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,824

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Each RSU represents a contingent right to receive one share of KLA-Tencor common stock.

F3 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also grantedRSUs covering up to a maximum of 5,500 shares (based on 125% of the target shares of 4,400) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements.On August2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determinedthat thenumber of shares subject to the RSUs is 5,456. On August 6, 2018, 50% of the RSUs vested.

F4 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010801 · wf-form4_153375960240039.xml · nonDerivative · entry 1

Kirloskar Virendra A · CIK 0001430600 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on January 31, 2018.

SEC source: 0001628280-18-010802 · wf-form4_153375963549715.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · SVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 566

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on January 30, 2018.

SEC source: 0001628280-18-010803 · wf-form4_153375968817785.xml · nonDerivative · entry 6

Khan Ahmad A. · CIK 0001642452 · EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,072

F4 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010803 · wf-form4_153375968817785.xml · nonDerivative · entry 5

Khan Ahmad A. · CIK 0001642452 · EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,715

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 13,250 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

SEC source: 0001628280-18-010803 · wf-form4_153375968817785.xml · nonDerivative · entry 4

Khan Ahmad A. · CIK 0001642452 · EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,811

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F5 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 13,250 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

F3 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010803 · wf-form4_153375968817785.xml · nonDerivative · entry 3

Khan Ahmad A. · CIK 0001642452 · EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,403

F4 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010803 · wf-form4_153375968817785.xml · nonDerivative · entry 2

Khan Ahmad A. · CIK 0001642452 · EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,476

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was alsogranted RSUs covering up to a maximum of 16,562 shares (based on 125% of the target shares of 13,250) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements.On August 2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determinedthat the number of shares subject to the RSUs is 16,430. On August 6, 2018, 50% of the RSUs vested.

SEC source: 0001628280-18-010803 · wf-form4_153375968817785.xml · nonDerivative · entry 1

Khan Ahmad A. · CIK 0001642452 · EVP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,123

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F2 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was alsogranted RSUs covering up to a maximum of 16,562 shares (based on 125% of the target shares of 13,250) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements.On August 2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determinedthat the number of shares subject to the RSUs is 16,430. On August 6, 2018, 50% of the RSUs vested.

F3 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 8

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,903

F7 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 7

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,466

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 52,950 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 6

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 199,347

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each RSU represents a contingent right to receive one share of KLA-Tencor common stock.

F8 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 52,950 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

F6 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 5

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,229

F7 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 4

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,506

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was alsograntedRSUs covering up to a maximum of 66,187 shares (based on 125% of the target shares of 52,950) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements.OnAugust 2, 2018 the independent members of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined thatthe number of shares subject to the RSUs is 65,658. On August 6, 2018, 50% of the RSUs vested.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 212,584

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · security: Each RSU represents a contingent right to receive one share of KLA-Tencor common stock.

F5 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was alsograntedRSUs covering up to a maximum of 66,187 shares (based on 125% of the target shares of 52,950) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements.OnAugust 2, 2018 the independent members of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined thatthe number of shares subject to the RSUs is 65,658. On August 6, 2018, 50% of the RSUs vested.

F6 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,677

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 1, 2017.

F3 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $118.36 to $119.30. The reporting person will provide upon request full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-18-010804 · wf-form4_153375971640646.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,460

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 1, 2017.

F2 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $118.10 to $118.77. The reporting person will provide upon request full information regarding the number of shares sold at each separate price.

SEC source: 0001628280-18-010805 · wf-form4_153375974400182.xml · nonDerivative · entry 6

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,838

F4 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010805 · wf-form4_153375974400182.xml · nonDerivative · entry 5

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,481

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 13,250 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

SEC source: 0001628280-18-010805 · wf-form4_153375974400182.xml · nonDerivative · entry 4

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,035

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F5 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 13,250 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

F3 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010805 · wf-form4_153375974400182.xml · nonDerivative · entry 3

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,169

F4 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010805 · wf-form4_153375974400182.xml · nonDerivative · entry 2

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,242

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 16,562 shares (based on 125% of the target shares of 13,250) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 16,430. On August 6, 2018, 50% of the RSUs vested.

SEC source: 0001628280-18-010805 · wf-form4_153375974400182.xml · nonDerivative · entry 1

Higgins Bren D. · CIK 0001582049 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,347

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F2 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 16,562 shares (based on 125% of the target shares of 13,250) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 16,430. On August 6, 2018, 50% of the RSUs vested.

F3 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010806 · wf-form4_153375977261896.xml · nonDerivative · entry 7

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,508

F5 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010806 · wf-form4_153375977261896.xml · nonDerivative · entry 6

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,599

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 8,800 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

SEC source: 0001628280-18-010806 · wf-form4_153375977261896.xml · nonDerivative · entry 5

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,009

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F6 · shares: On August 6, 2015, the Reporting Person was granted an RSU for 8,800 shares of KLA-Tencor Common Stock. On August 6, 2018, 25% of those shares vested.

F4 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.

SEC source: 0001628280-18-010806 · wf-form4_153375977261896.xml · nonDerivative · entry 4

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,399

F5 · shares: Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on August 6, 2018.

SEC source: 0001628280-18-010806 · wf-form4_153375977261896.xml · nonDerivative · entry 3

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,105

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 11,000 shares (based on 125% of the target shares of 8,800) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 10,912. On August 6, 2018, 50% of the RSUs vested.

SEC source: 0001628280-18-010806 · wf-form4_153375977261896.xml · nonDerivative · entry 2

Trafas Brian M. · CIK 0001642421 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,209

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · security: Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA-Tencor common stock.

F3 · shares: On August 6, 2015, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 11,000 shares (based on 125% of the target shares of 8,800) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 2, 2018 the Compensation Committee of the KLA-Tencor Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 10,912. On August 6, 2018, 50% of the RSUs vested.

F4 · balance_after: Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.