KLAC

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 8

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 124,045.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 7

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 124,145.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F9 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $506.05 to $507.02. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 6

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 127,491.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F8 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $504.98 to $505.88. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 5

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 132,773.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F7 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $503.95 to $504.94. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 4

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 147,785.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F6 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $502.95 to $503.90. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 152,419.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F5 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $501.92 to $502.87. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 154,620.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F4 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $500.91 to $501.87. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045160 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 157,893.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 7, 2023, as amended on February 15, 2023.

F2 · price: Represents the weighted average sales price for the shares. The sales prices ranged from $499.83 to $500.71. The Reporting Person will provide upon request full information regarding the number of shares sold at each separate price.

F3 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045161 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 47,818.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 35,246 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045162 · doc4.xml · nonDerivative · entry 1

Wilkinson Mary Beth · CIK 0001691769 · EVP, CLO and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,315

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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 11,885 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-045165 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,942.392

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 3, 2023, as amended on February 24, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 16,839 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044946 · doc4.xml · nonDerivative · entry 4

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,448.392

F7 · shares: The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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, 2023.

F8 · balance_after: The number of shares of KLA common stock includes 15,584 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044946 · doc4.xml · nonDerivative · entry 3

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,940.392

F5 · shares: On August 6, 2020, the Reporting Person was granted RSUs for 3,777 shares of KLA common stock. On August 6, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 18,417 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044947 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,879.392

F7 · shares: The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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, 2023.

F8 · balance_after: The number of shares of KLA common stock includes 35,246 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044947 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,890.392

F5 · shares: On August 6, 2020, the Reporting Person was granted RSUs for 8,094 shares of KLA common stock. On August 6, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 41,318 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044948 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,324.392

F7 · shares: The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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, 2023.

F8 · balance_after: The number of shares of KLA common stock includes 38,525 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044948 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,836.392

F5 · shares: On August 6, 2020, the Reporting Person was granted RSUs for 9,444 shares of KLA common stock. On August 6, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 45,608 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044950 · doc4.xml · nonDerivative · entry 4

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,045.392

F7 · shares: The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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, 2023.

F8 · balance_after: The number of shares of KLA common stock includes 95,708 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044950 · doc4.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,280.392

F5 · shares: On August 6, 2020, the Reporting Person was granted RSUs for 18,348 shares of KLA common stock. On August 6, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 116,351 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044949 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,320.392

F7 · shares: The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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, 2023.

F8 · balance_after: The number of shares of KLA common stock includes 3,402 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044949 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,923.392

F5 · shares: On August 6, 2020, the Reporting Person was granted RSUs for 1,618 shares of KLA common stock. On August 6, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 4,617 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044952 · doc4.xml · nonDerivative · entry 4

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,680.392

F7 · shares: The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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, 2023.

F8 · balance_after: The number of shares of KLA common stock includes 16,839 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044952 · doc4.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,186.392

F5 · shares: On August 6, 2020, the Reporting Person was granted RSUs for 4,047 shares of KLA common stock. On August 6, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 19,875 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044946 · doc4.xml · nonDerivative · entry 2

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,438.392

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 2,402 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 19,361 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044947 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,894.392

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 6,086 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 43,341 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044948 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,007.392

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 6,727 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 47,969 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044950 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,555.392

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 17,298 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 120,938 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044949 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,124.392

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 961 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 5,021 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044951 · doc4.xml · nonDerivative · entry 3

Wilkinson Mary Beth · CIK 0001691769 · EVP, CLO and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,185

F5 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 2,562 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F6 · balance_after: The number of shares of KLA common stock includes 11,885 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044951 · doc4.xml · nonDerivative · entry 2

Wilkinson Mary Beth · CIK 0001691769 · EVP, CLO and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,413

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 3,203 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 12,526 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044952 · doc4.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,688.392

F3 · shares: On August 5, 2021, the Reporting Person was granted RSUs for 2,562 shares of KLA common stock. On August 5, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 20,887 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044946 · doc4.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,755.392

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 2,533 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 19,962 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044947 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,649.392

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 5,961 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 44,863 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044948 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,841.392

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 6,260 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 49,651 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044950 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,700.392

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 16,097 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 125,263 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044949 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,243.392

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 894 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 5,261 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044951 · doc4.xml · nonDerivative · entry 1

Wilkinson Mary Beth · CIK 0001691769 · EVP, CLO and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,757

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 2,384 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 13,327 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044952 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,006.392

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 2,980 shares of KLA common stock. On August 4, 2023, twenty-five percent (25%) of the RSUs vested. 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, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 21,528 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044776 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,355.392

F3 · shares: On August 6, 2020, 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 2,428 shares (based on 150% of the target shares of 1,619) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 3, 2023, the Compensation and Talent 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 2,428.

F4 · balance_after: The number of shares of KLA common stock includes 5,485 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044776 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,927.392

F1 · shares: On August 3, 2023, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 3,057 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044777 · doc4.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,376.392

F3 · shares: On August 6, 2020, 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 6,070 shares (based on 150% of the target shares of 4,047) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 3, 2023, the Compensation and Talent 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 6,070.

F4 · balance_after: The number of shares of KLA common stock includes 22,273 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044777 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,306.392

F1 · shares: On August 3, 2023, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 16,203 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044778 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,617.392

F3 · shares: On August 6, 2020, 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 14,166 shares (based on 150% of the target shares of 9,444) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 3, 2023, the Compensation and Talent 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 14,166.

F4 · balance_after: The number of shares of KLA common stock includes 51,216 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044778 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,451.392

F1 · shares: On August 3, 2023, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 37,050 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044779 · doc4.xml · nonDerivative · entry 2

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,089.392

F3 · shares: On August 6, 2020, 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 5,667 shares (based on 150% of the target shares of 3,778) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 3, 2023, the Compensation and Talent 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 5,667.

F4 · balance_after: The number of shares of KLA common stock includes 20,596 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044779 · doc4.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,422.392

F1 · shares: On August 3, 2023, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 14,929 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044780 · doc4.xml · nonDerivative · entry 1

Wilkinson Mary Beth · CIK 0001691769 · EVP, CLO and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,923

F1 · shares: On August 3, 2023, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 13,923 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044781 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,696.392

F3 · shares: On August 6, 2020, 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 41,284 shares (based on 150% of the target shares of 27,523) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 3, 2023, the Compensation and Talent 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 41,284.

F4 · balance_after: The number of shares of KLA common stock includes 129,288 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044781 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,412.392

F1 · shares: On August 3, 2023, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 88,004 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044782 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,389.392

F3 · shares: On August 6, 2020, 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 12,142 shares (based on 150% of the target shares of 8,095) of KLA common stock, subject to both performance-vesting and service-vesting requirements. On August 3, 2023, the Compensation and Talent 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 12,142.

F4 · balance_after: The number of shares of KLA common stock includes 46,354 shares issuable upon vesting of RSUs.