KLAC

SEC source: 0001628280-20-012359 · wf-form4_159709170888701.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,490

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 common stock.

F5 · shares: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

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: 0001628280-20-012359 · wf-form4_159709170888701.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,525

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

F4 · shares: On August 3, 2017, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on a Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 16,884 shares (based on 150% of the target shares of 11,256) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 6, 2020, the Compensation Committee of KLA'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 14,070.

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: 0001628280-20-012359 · wf-form4_159709170888701.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,455

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

F2 · shares: On August 6, 2020, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

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: 0001628280-20-012353 · wf-form4_159709161896156.xml · nonDerivative · entry 5

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,913

F6 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 6, 2020.

SEC source: 0001628280-20-012353 · wf-form4_159709161896156.xml · nonDerivative · entry 4

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,627

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: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

SEC source: 0001628280-20-012353 · wf-form4_159709161896156.xml · nonDerivative · entry 3

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,602

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 common stock.

F5 · shares: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

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: 0001628280-20-012353 · wf-form4_159709161896156.xml · nonDerivative · entry 2

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,074

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

F4 · shares: On August 3, 2017, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on a Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 13,132 shares (based on 150% of the target shares of 8,755) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 6, 2020, the Compensation Committee of KLA'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 10,943.

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: 0001628280-20-012353 · wf-form4_159709161896156.xml · nonDerivative · entry 1

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,131

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

F2 · shares: On August 6, 2020, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

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: 0001628280-20-012354 · wf-form4_159709163464992.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,150

F6 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 6, 2020.

SEC source: 0001628280-20-012354 · wf-form4_159709163464992.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,860

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: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

SEC source: 0001628280-20-012354 · wf-form4_159709163464992.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,369

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 common stock.

F5 · shares: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

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: 0001628280-20-012354 · wf-form4_159709163464992.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,932

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

F4 · shares: On August 3, 2017, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on a Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 3,753 shares (based on 150% of the target shares of 2,502) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 6, 2020, the Compensation Committee of KLA'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 3,127.

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: 0001628280-20-012354 · wf-form4_159709163464992.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,805

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

F2 · shares: On August 6, 2020, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

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: 0001628280-20-012355 · wf-form4_159709165201171.xml · nonDerivative · entry 5

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,748

F6 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 6, 2020.

SEC source: 0001628280-20-012355 · wf-form4_159709165201171.xml · nonDerivative · entry 4

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,911

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: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

SEC source: 0001628280-20-012355 · wf-form4_159709165201171.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,033

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 common stock.

F5 · shares: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

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: 0001628280-20-012355 · wf-form4_159709165201171.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,378

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

F4 · shares: On August 3, 2017, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on a Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 5,628 shares (based on 150% of the target shares of 3,752) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 6, 2020, the Compensation Committee of KLA'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 4,690.

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: 0001628280-20-012355 · wf-form4_159709165201171.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,688

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

F2 · shares: On August 6, 2020, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

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: 0001628280-20-012356 · wf-form4_159709166942738.xml · nonDerivative · entry 5

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,430

F6 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 6, 2020.

SEC source: 0001628280-20-012356 · wf-form4_159709166942738.xml · nonDerivative · entry 4

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,593

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: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

SEC source: 0001628280-20-012356 · wf-form4_159709166942738.xml · nonDerivative · entry 3

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,348

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 common stock.

F5 · shares: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

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: 0001628280-20-012356 · wf-form4_159709166942738.xml · nonDerivative · entry 2

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,693

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

F4 · shares: On August 3, 2017, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on a Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 5,628 shares (based on 150% of the target shares of 3,752) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 6, 2020, the Compensation Committee of KLA'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 4,690.

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: 0001628280-20-012356 · wf-form4_159709166942738.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,003

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

F2 · shares: On August 6, 2020, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

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: 0001628280-20-012358 · wf-form4_159709169173728.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,021

F6 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 6, 2020.

SEC source: 0001628280-20-012358 · wf-form4_159709169173728.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,973

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: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

SEC source: 0001628280-20-012358 · wf-form4_159709169173728.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 178,325

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 common stock.

F5 · shares: The Reporting Person vested fifty percent (50%) of the performance-based RSUs upon the date on which the Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 6, 2020) and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the award (August 3, 2021). The shares of common stock will be issued as the performance-based RSUs vest.

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: 0001628280-20-012358 · wf-form4_159709169173728.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 206,465

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

F4 · shares: On August 3, 2017, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on a Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 67,536 shares (based on 150% of the target shares of 45,024) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 6, 2020, the Compensation Committee of KLA'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 56,280.

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: 0001628280-20-012358 · wf-form4_159709169173728.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,185

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

F2 · shares: On August 6, 2020, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

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: 0001628280-20-012174 · wf-form4_159683668265134.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 May 29, 2020.

SEC source: 0001628280-20-012177 · wf-form4_159683686521619.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

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 February 5, 2020.

SEC source: 0001628280-20-012186 · wf-form4_159683972418994.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on June 15, 2020.

SEC source: 0001628280-20-012025 · wf-form4_159674742363153.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,248

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 28, 2020.

SEC source: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 7

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,128

F5 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 4, 2020.

SEC source: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 6

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,897

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 4, 2016, the Reporting Person was granted RSUs for 3,100 shares of KLA common stock. On August 4, 2020, 50% of the RSUs vested.

SEC source: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 5

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,641

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 common stock.

F6 · shares: On August 4, 2016, the Reporting Person was granted RSUs for 3,100 shares of KLA common stock. On August 4, 2020, 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: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 4

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,347

F5 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 4, 2020.

SEC source: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,116

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 4, 2016, the Reporting Person was granted RSUs for 6,200 shares of KLA common stock. On August 4, 2020, 25% of the RSUs vested.

SEC source: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,191

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

F3 · shares: On August 4, 2016, the Reporting Person was granted RSUs for 6,200 shares of KLA common stock. On August 4, 2020, 25% 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: 0001628280-20-012026 · wf-form4_159674744629714.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

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 February 5, 2020.

SEC source: 0001628280-20-012027 · wf-form4_159674747359706.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,437

F5 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 4, 2020.

SEC source: 0001628280-20-012027 · wf-form4_159674747359706.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,003

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 4, 2016, the Reporting Person was granted RSUs for 20,700 shares of KLA common stock. On August 4, 2020, 25% of the RSUs vested.

SEC source: 0001628280-20-012027 · wf-form4_159674747359706.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,361

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 common stock.

F3 · shares: On August 4, 2016, the Reporting Person was granted RSUs for 20,700 shares of KLA common stock. On August 4, 2020, 25% 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: 0001628280-20-012027 · wf-form4_159674747359706.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,828

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on June 15, 2020.

SEC source: 0001628280-20-012027 · wf-form4_159674747359706.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,262

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on June 15, 2020.

SEC source: 0001628280-20-012027 · wf-form4_159674747359706.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,749

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on June 15, 2020.

SEC source: 0001628280-20-012028 · wf-form4_159674750111436.xml · nonDerivative · entry 3

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,155

F4 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 4, 2020.

SEC source: 0001628280-20-012028 · wf-form4_159674750111436.xml · nonDerivative · entry 2

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,721

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 4, 2016, the Reporting Person was granted RSUs for 20,700 shares of KLA common stock. On August 4, 2020, 25% of the RSUs vested.

SEC source: 0001628280-20-012028 · wf-form4_159674750111436.xml · nonDerivative · entry 1

Khan Ahmad A. · CIK 0001642452 · President, Semi Proc. Control

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,687

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 common stock.

F2 · shares: On August 4, 2016, the Reporting Person was granted RSUs for 20,700 shares of KLA common stock. On August 4, 2020, 25% 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: 0001628280-20-012029 · wf-form4_159674751773928.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,425

F5 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 4, 2020.

SEC source: 0001628280-20-012029 · wf-form4_159674751773928.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,022

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 4, 2016, the Reporting Person was granted RSUs for 6,900 shares of KLA common stock. On August 4, 2020, 25% of the RSUs vested.