Higgins Bren D.

SEC source: 0001193125-26-349139 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 307,815.4359

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on May 11, 2026.

F2 · balance_after: The number of shares of KLA common stock includes 128,244.613 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001193125-26-342332 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 339,315.4359

F1 · shares: On August 7, 2025, the Reporting Person was granted restricted stock units ("RSUs") of shares of KLA common stock. On August 7, 2026, 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 6, 2026.

F2 · balance_after: The number of shares of KLA common stock includes 128,244.613 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340228 · ownership.xml · nonDerivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 343,847.0479

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 5, 2026.

F6 · balance_after: The number of shares of KLA common stock includes 137,381.613 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340228 · ownership.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 374,822.5009

F7 · shares: On August 4, 2022, the Reporting Person was granted PRSUs divided into three tranches. On August 6, 2026, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the third tranche of these PRSUs were satisfied. On August 6, 2026, 62,475.700 shares vested.

F8 · balance_after: The number of shares of KLA common stock includes 199,860.313 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340228 · ownership.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 312,346.8009

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 5, 2026.

F6 · balance_after: The number of shares of KLA common stock includes 137,381.613 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340228 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 334,018.2189

F3 · shares: On August 3, 2023, in addition to the restricted stock units ("RSUs") granted that were subject to only service-based vesting conditions, the Reporting Person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") for a target number of shares equal to 58,280.000 shares of KLA common stock. The maximum number of shares issuable under these PRSUs is 150% of the target shares if KLA's free cash flow relative to its peers was at the 75th percentile or greater for the three years in the period ended June 30, 2026. On August 6, 2026, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied at the maximum level. Fifty percent (50%) of the PRSUs will vest today, August 6, 2026, and the remaining fifty percent (50%) of the PRSUs will vest on August 3, 2027, subject to the continued service of the Reporting Person.

F4 · balance_after: The number of shares of KLA common stock includes 181,094.613 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340228 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 246,598.2189

F1 · shares: On August 5, 2026, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

F2 · balance_after: The number of shares of KLA common stock includes 93,674.613 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-332760 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 222,187.3659

F3 · shares: On August 4, 2022, in addition to the RSUs granted that were subject to only service-based vesting conditions, the Reporting Person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") for a target number of shares of KLA common stock. On August 7, 2025, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied. The remaining fifty percent (50%) of the PRSUs vested on August 4, 2026. 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 3, 2026.

F4 · balance_after: The number of shares of KLA common stock includes 69,263.760 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-332760 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 244,357.0639

F1 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") of shares of KLA common stock. On August 4, 2026, 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 3, 2026.

F2 · balance_after: The number of shares of KLA common stock includes 113,978.760 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-330525 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 251,744.4839

F3 · shares: On August 3, 2023, the Reporting Person was granted RSUs of shares of KLA common stock. On August 3, 2026, 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 July 31, 2026.

F4 · balance_after: The number of shares of KLA common stock includes 128,878.760 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-330525 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 258,968.2899

F1 · shares: On August 1, 2024, the Reporting Person was granted restricted stock units ("RSUs") of shares of KLA common stock. On August 1, 2026, 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 July 31, 2026.

F2 · balance_after: The number of shares of KLA common stock includes 143,448.760 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-296169 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 263,472.1969

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on May 5, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 152,532.880 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001193125-26-294471 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 291,173.1969

F4 · shares: On August 4, 2022, the reporting person was granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") divided into three tranches. On August 7, 2025, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the second tranche of these PRSUs were satisfied. On June 30, 2026, 61,651.800 shares vested.

F5 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld to cover required tax withholding on the 61,651.800 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 June 29, 2026.

F6 · balance_after: The number of shares of KLA common stock includes 152,532.880 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-294471 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 321,740.1599

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

F2 · price: Represents 85% of the closing price of the registrant's common stock on January 2, 2026, the first day of the offering period under the employee stock purchase plan.

F3 · balance_after: The number of shares of KLA common stock includes 214,184.680 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001193125-25-324797 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,154.4

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on May 5, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 21,418.468 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-110947 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,408.4

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on May 5, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 21,418.468 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-105813 · ownership.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,709.4

F7 · shares: On August 7, 2025, the Reporting Person received a grant of restricted stock units ("RSUs"). The RSUs vest 25% annually from the date of grant.

F8 · balance_after: The number of shares of KLA common stock includes 21,418.468 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-105813 · ownership.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,056.024

F5 · shares: On August 4, 2022, in addition to the RSUs granted that were subject to only service-based vesting conditions, the Reporting Person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") divided into three tranches. The second tranche was for a target number of shares equal to 4,194.000 shares of KLA common stock. The maximum number of shares issuable under the second tranche of these PRSUs is 250% of the target shares if the sum of KLA's non-GAAP earnings per diluted share for fiscal years 2023, 2024 and 2025 equaled or exceeded $93.00. On August 7, 2025, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the second tranche of these PRSUs were satisfied at 147% of target shares. The second tranche of these PRSUs will vest on June 30, 2026, subject to continue service of the Reporting Person.

F6 · balance_after: The number of shares of KLA common stock includes 17,765.092 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-105813 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,890.844

F3 · shares: On August 7, 2025, fifty percent (50%) of the performance-based restricted stock units granted on August 4, 2022 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 6, 2025.

F4 · balance_after: The number of shares of KLA common stock includes 11,599.912 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-105813 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,107.814

F1 · shares: On August 4, 2022, in addition to the RSUs granted that were subject to only service-based vesting conditions, the Reporting Person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") for a target number of shares equal to 5,962.000 shares of KLA common stock. The maximum number of shares issuable under these PRSUs is 150% of the target shares if KLA's free cash flow relative to its peers was at the 75th percentile or greater for the three years in the period ended June 30, 2025. On August 7, 2025, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied at the maximum level. Fifty percent (50%) of the PRSUs will vest today, August 7, 2025, and the remaining fifty percent (50%) of the PRSUs will vest on August 4, 2026, subject to continued service of the Reporting Person.

F2 · balance_after: The number of shares of KLA common stock includes 16,071.412 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-104982 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,164.814

F3 · shares: On August 5, 2021, the Reporting Person was granted restricted stock units ("RSUs") for 6,086.000 shares of KLA common stock. On August 5, 2025, the remaining 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, 2025.

F4 · balance_after: The number of shares of KLA common stock includes 7,128.412 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-104982 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,918.926

F1 · shares: On August 5, 2025, the remaining fifty percent (50%) of the performance-based restricted stock units granted on August 5, 2021 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, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 8,649.412 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-103104 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,182.006

F3 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 5,961.000 shares of KLA common stock. On August 4, 2025, 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 1, 2025.

F4 · balance_after: The number of shares of KLA common stock includes 13,213.912 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-103104 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,920.749

F1 · shares: On August 3, 2023, the Reporting Person was granted restricted stock units ("RSUs") for 5,828.000 shares of KLA common stock. On August 3, 2025, 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 1, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 14,703.912 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-102994 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,643.13

F1 · shares: On August 1, 2024, the Reporting Person was granted restricted stock units ("RSUs") for 3,633.412 shares of KLA common stock. On August 1, 2025, 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 July 31, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 16,160.912 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-092933 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,093.813

F4 · shares: On August 4, 2022, the reporting person was granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") divided into three tranches. The first tranche was for a target number of shares equal to 4,194.000 shares of KLA common stock. The maximum number of shares issuable under the first tranche of these PRSUs is 250% of the target shares if the sum of KLA's non-GAAP earnings per diluted share for fiscal year 2023 and fiscal year 2024 equaled or exceeded $56.62. On August 1, 2024, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the first tranche of these PRSUs were satisfied at 131% of target shares. The first tranche of these PRSUs (5,494.140) vested on June 30, 2025, and were subject to the continued service of the reporting person.

F5 · shares: Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld to cover required tax withholding on the 5,494.140 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 June 30, 2025.

F6 · balance_after: The number of shares of KLA common stock includes 17,069.912 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-092933 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,817.808

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

F2 · price: Represents 85% of the closing price of the registrant's common stock on January 2, 2025, the first day of the offering period under the employee stock purchase plan.

F3 · balance_after: The number of shares of KLA common stock includes 22,564.052 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-077681 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 27,778.539

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 22,564.052 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-046045 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,797.539

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 22,564.052 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-094737 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,805.539

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 22,564.052 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-093875 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,166.539

F3 · shares: On August 6, 2024, the remaining fifty percent (50%) of the performance-based restricted stock units granted on August 6, 2020 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 5, 2024.

F4 · balance_after: The number of shares of KLA common stock includes 22,564.052 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-093875 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,176.045

F1 · shares: On August 6, 2020, the Reporting Person was granted restricted stock units ("RSUs") for 8,094.000 shares of KLA common stock. On August 6, 2024, the remaining 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 5, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 28,634.052 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091753 · ownership.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,179.049

F7 · shares: On August 5, 2024, 50% of the performance-based restricted stock units granted on August 5, 2021 vested. Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld to cover required tax withholding. The fair 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 2, 2024.

F8 · balance_after: The number of shares of KLA common stock includes 30,657.052 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091753 · ownership.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,442.129

F5 · shares: On August 5, 2021, the Reporting Person was granted restricted stock units ("RSUs") for 6,086.000 shares of KLA common stock. On August 5, 2024, 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 2, 2024.

F6 · balance_after: The number of shares of KLA common stock includes 35,221.552 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091753 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,196.241

F3 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 5,961.000 shares of KLA common stock. On August 4, 2024, 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 2, 2024.

F4 · balance_after: The number of shares of KLA common stock includes 36,742.552 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091753 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,934.983

F1 · shares: On August 3, 2023, the Reporting Person was granted restricted stock units ("RSUs") for 5,828.000 shares of KLA common stock. On August 3, 2024, 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 2, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 38,232.552 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090717 · ownership.xml · nonDerivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,657.364

F8 · shares: On August 4, 2022, in addition to the RSUs granted that were subject to only service-based vesting conditions, the reporting person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") divided into three tranches. The first tranche was for a target number of shares equal to 4,194.000 shares of KLA common stock. The maximum number of shares issuable under the first tranche of these PRSUs is 250% of the target shares if the sum of KLA's non-GAAP earnings per diluted share for fiscal year 2023 and fiscal year 2024 equaled or exceeded $56.62. On August 1, 2024, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the first tranche of these PRSUs were satisfied at 131% of target shares. The first tranche of these PRSUs will vest on June 30, 2025, subject to continued service of the reporting person.

F9 · balance_after: The number of shares of KLA common stock includes 39,689.552 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090717 · ownership.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,163.224

F6 · shares: On August 5, 2021, in addition to the RSUs granted that were subject to only service-based vesting conditions, the reporting person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") for a target number of shares equal to 6,086.000 shares of KLA common stock. The maximum number of shares issuable under these PRSUs is 150% of the target shares if KLA's free cash flow relative to its peers was at the 75th percentile or greater for the three years in the period ended June 30, 2024. On August 1, 2024, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied at the maximum level. Fifty-percent (50%) of the PRSUs will vest on August 5, 2024, and the remaining 50% of the PRSUs will vest on August 5, 2025, subject to continued service of the reporting person.

F7 · balance_after: The number of shares of KLA common stock includes 34,195.412 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090717 · ownership.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,034.224

F4 · shares: On August 1, 2024, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

F5 · balance_after: The number of shares of KLA common stock includes 25,066.412 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090717 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,400.812

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

F2 · price: Represents 85% of the closing price of the registrant's common stock on January 2, 2024, the first day of the offering period under the employee stock purchase plan.

F3 · balance_after: The number of shares of KLA common stock includes 21,433.000 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-064554 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,356.2

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 21,433 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-038020 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,375.2

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 21,433 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-035332 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,393.2

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 13,813 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, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 21,433 shares issuable upon vesting of RSUs.

SEC source: 0000950170-23-065475 · ownership.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,197.392

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: 0001209191-23-045161 · 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: 0001209191-23-044947 · 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: 0001209191-23-044947 · 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: 0001209191-23-044947 · 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: 0001209191-23-044782 · 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.