KLAC

SEC source: 0001209191-23-044782 · 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: 44,247.392

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 34,212 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044412 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,657.392

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 13,554 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044416 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,419.392

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

F2 · balance_after: The number of shares of KLA common stock includes 28,384 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044396 · doc4.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,467.392

F3 · shares: On August 1, 2019, the Reporting Person was granted RSUs for 5,574 shares of KLA common stock. On August 1, 2023, the remaining 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 1, 2023.

F4 · balance_after: The number of shares of KLA common stock includes 13,554 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044396 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,158.392

F1 · shares: The Reporting Person vested the remaining 50% of the performance-based RSUs, upon his completion of four years of service (August 1, 2023) following the award on August 1, 2019. The Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 4, 2022). 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 1, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 14,947 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044398 · 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: 47,623.392

F6 · shares: On August 1, 2019, the Reporting Person was granted RSUs for 15,007 shares of KLA common stock. On August 1, 2023, the remaining 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 1, 2023.

F7 · balance_after: The number of shares of KLA common stock includes 31,222 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044398 · 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: 49,483.392

F4 · shares: The Reporting Person vested the remaining 50% of the performance-based RSUs, upon his completion of four years of service (August 1, 2023) following the award on August 1, 2019. The Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 4, 2022). 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 1, 2023.

F5 · balance_after: The number of shares of KLA common stock includes 34,973 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044399 · doc4.xml · nonDerivative · entry 3

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,621.392

F6 · shares: On August 1, 2019, the Reporting Person was granted RSUs for 5,360 shares of KLA common stock. On August 1, 2023, the remaining 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 1, 2023.

F7 · balance_after: The number of shares of KLA common stock includes 13,128 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044399 · doc4.xml · nonDerivative · entry 2

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,327.392

F4 · shares: The Reporting Person vested the remaining 50% of the performance-based RSUs, upon his completion of four years of service (August 1, 2023) following the award on August 1, 2019. The Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 4, 2022). 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 1, 2023.

F5 · balance_after: The number of shares of KLA common stock includes 14,468 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044400 · 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: 43,282.392

F6 · shares: On August 1, 2019, the Reporting Person was granted RSUs for 12,863 shares of KLA common stock. On August 1, 2023, the remaining 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 1, 2023.

F7 · balance_after: The number of shares of KLA common stock includes 28,384 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044400 · 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: 44,876.392

F4 · shares: The Reporting Person vested the remaining 50% of the performance-based RSUs, upon his completion of four years of service (August 1, 2023) following the award on August 1, 2019. The Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 4, 2022). 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 1, 2023.

F5 · balance_after: The number of shares of KLA common stock includes 31,599 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044401 · doc4.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,728.392

F6 · shares: On August 1, 2019, the Reporting Person was granted RSUs for 25,726 shares of KLA common stock. On August 1, 2023, the remaining 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 1, 2023.

F7 · balance_after: The number of shares of KLA common stock includes 72,320 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044401 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,917.392

F4 · shares: The Reporting Person vested the remaining 50% of the performance-based RSUs, upon his completion of four years of service (August 1, 2023) following the award on August 1, 2019. The Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 4, 2022). 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 1, 2023.

F5 · balance_after: The number of shares of KLA common stock includes 78,751 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044402 · 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: 4,292.392

F6 · shares: On August 1, 2019, the Reporting Person was granted RSUs for 2,573 shares of KLA common stock. On August 1, 2023, the remaining 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 1, 2023.

F7 · balance_after: The number of shares of KLA common stock includes 2,422 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-044402 · 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: 4,611.392

F4 · shares: The Reporting Person vested the remaining 50% of the performance-based RSUs, upon his completion of four years of service (August 1, 2023) following the award on August 1, 2019. The Compensation Committee of KLA's Board of Directors determined the level at which the underlying performance goals were attained (August 4, 2022). 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 1, 2023.

F5 · balance_after: The number of shares of KLA common stock includes 3,065 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-043407 · doc4.xml · nonDerivative · entry 1

McMullen Michael R. · CIK 0001418949 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132

F1 · shares: On July 24, 2023, the Reporting Person received a pro-rated annual outside director grant of restricted stock units ("RSUs") for 132 shares of KLA common stock. The RSUs vest on the earliest to occur of (i) November 2, 2023, (ii) immediately prior to the next annual meeting of stockholders, and (iii) ten days prior to a change of control of KLA.

F2 · balance_after: The number of shares of KLA common stock includes 132 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-041784 · doc4.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,231.392

F4 · 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.

F3 · balance_after: The number of shares of KLA common stock includes 19,128 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-041784 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,297.392

F1 · shares: Purchased under the registrant's employee stock purchase plan.

F2 · price: Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on June 30, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 19,128 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044398 · 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: 55,063.392

F1 · shares: Purchased under the registrant's employee stock purchase plan.

F2 · price: Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on January 3, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 46,227 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044399 · doc4.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,444.392

F1 · shares: Purchased under the registrant's employee stock purchase plan.

F2 · price: Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on January 3, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 18,488 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044400 · 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: 49,659.392

F1 · shares: Purchased under the registrant's employee stock purchase plan.

F2 · price: Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on January 3, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 41,245 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044401 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,267.392

F1 · shares: Purchased under the registrant's employee stock purchase plan.

F2 · price: Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on January 3, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-044402 · 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: 5,357.392

F1 · shares: Purchased under the registrant's employee stock purchase plan.

F2 · price: Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on January 3, 2023.

F3 · balance_after: The number of shares of KLA common stock includes 4,994 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-034257 · 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: 54,997

F1 · balance_after: The number of shares of KLA common stock includes 46,227 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-030960 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,231

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 19,128 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-030589 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,172

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 29, 2022.

F2 · balance_after: The number of shares of KLA common stock includes 46,227 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 7

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 136,201

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 $387.57 to $387.91. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 6

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 136,401

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 $385.73 to $386.66. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 5

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 137,401

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 $384.18 to $385.12. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 4

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 138,356

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 $383.13 to $383.90. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 139,352

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 $382.09 to $382.99. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 139,852

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 $381.08 to $382.01. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-028232 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 140,552

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 $380.07 to $381.00. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027639 · doc4.xml · nonDerivative · entry 6

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 140,783

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 $385.27 to $385.64. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027639 · doc4.xml · nonDerivative · entry 5

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 141,083

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 $384.24 to $385.07. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027639 · doc4.xml · nonDerivative · entry 4

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 143,232

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 $383.20 to $384.19. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027639 · doc4.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 145,610

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 $382.05 to $382.71. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027639 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 147,059

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 $381.05 to $382.03. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027639 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 149,788

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 $380.00 to $380.97. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027317 · doc4.xml · nonDerivative · entry 5

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 153,702

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 $385.28 to $386.11. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027317 · doc4.xml · nonDerivative · entry 4

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 155,102

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 $384.27 to $385.26. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027317 · doc4.xml · nonDerivative · entry 3

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 157,202

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 $382.18 to $382.84. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027317 · doc4.xml · nonDerivative · entry 2

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 158,302

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 $381.00 to $381.92. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-027317 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 159,103

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 $380.00 to $380.95. 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 107,694 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-024204 · doc4.xml · nonDerivative · entry 1

WALLACE RICHARD P · CIK 0001196898 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,201

F1 · shares: Pursuant to the terms of the restricted stock unit ("RSU") grant by the registrant on April 11, 2019, shares of KLA common stock were automatically withheld to cover required tax withholding on the 41,441 shares of KLA common stock that vested. 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 April 11, 2023.

F2 · balance_after: The number of shares of KLA common stock includes 107,694 shares issuable upon vesting of RSUs.

SEC source: 0001209191-23-023265 · doc4.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,958

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.

F2 · balance_after: The number of shares of KLA common stock includes 19,128 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-022650 · doc4.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,378

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, 2022.

F2 · balance_after: The number of shares of KLA common stock includes 18,488 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001209191-23-020721 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,593

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on March 1, 2022.

F2 · balance_after: Includes RSUs to acquire 41,245 shares of KLA common stock.

SEC source: 0001209191-23-020484 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 57,087

F3 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on November 29, 2022.

F2 · balance_after: Includes RSUs to acquire 46,227 shares of KLA common stock.

SEC source: 0001209191-23-020482 · doc4.xml · nonDerivative · entry 1

Donzella Oreste · CIK 0001802832 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,260

F1 · shares: Pursuant to the terms of the restricted stock unit ("RSU") grant by the registrant on March 20, 2019, shares of KLA common stock were automatically withheld to cover required tax withholding on the 6,906 shares of KLA common stock that vested. 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 March 20, 2023.

F2 · balance_after: Includes RSUs to acquire 18,488 shares of KLA common stock.