Lorig Brian

SEC source: 0001193125-26-352187 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 77,681.0919

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on May 14, 2026.

F2 · balance_after: The number of shares of KLA common stock includes 71,918.092 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0001193125-26-342340 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 137,267.0919

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 71,918.092 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340232 · ownership.xml · nonDerivative · entry 5

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,142.7319

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 77,718.092 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340232 · ownership.xml · nonDerivative · entry 4

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,531.4359

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, 24,987.300 shares vested.

F8 · balance_after: The number of shares of KLA common stock includes 102,705.392 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340232 · ownership.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,544.1359

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 77,718.092 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340232 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 137,398.1609

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 26,490.000 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 97,593.092 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-340232 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,663.1609

F1 · shares: On August 6, 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 57,858.092 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-332756 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,702.2189

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 41,897.150 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-332756 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,783.3499

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 64,247.150 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-330527 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,477.0609

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 71,697.150 shares issuable upon vesting of restricted stock units RSUs.

SEC source: 0001193125-26-330527 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,759.2579

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 78,317.150 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-294472 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,763.8069

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, 24,651.900 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 24,651.900 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 84,377.150 shares issuable upon vesting of RSUs.

SEC source: 0001193125-26-294472 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,986.2199

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 109,029.050 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-108845 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,479.006

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on May 2, 2025.

F2 · balance_after: The number of shares of KLA common stock includes 10,902.905 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-105816 · ownership.xml · nonDerivative · entry 4

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,528.006

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 10,902.905 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-105816 · ownership.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,210.566

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 1,677.000 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 8,585.465 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-105816 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,745.376

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 6,120.275 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-105816 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,854.233

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 2,981.000 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 8,356.775 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-104983 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,382.733

F3 · shares: On August 5, 2021, the Reporting Person was granted restricted stock units ("RSUs") for 2,562.000 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 3,885.275 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-104983 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,700.045

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 4,525.275 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-25-103107 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,652.725

F3 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 2,980.000 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 6,446.775 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-103107 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,022.097

F1 · shares: On August 3, 2023, the Reporting Person was granted restricted stock units ("RSUs") for 2,649.000 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 7,191.775 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-102999 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,350.317

F1 · shares: On August 1, 2024, the Reporting Person was granted restricted stock units ("RSUs") for 2,422.275 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 7,853.775 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-092932 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,650.772

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 1,678.000 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 (2,198.180) 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 2,198.180 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 8,459.775 shares issuable upon vesting of RSUs.

SEC source: 0000950170-25-092932 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · EVP, KLA Global Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,702.847

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 10,657.955 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-094739 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,663.578

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 10,657.955 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-093879 · ownership.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,701.578

F5 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2024.

F4 · balance_after: The number of shares of KLA common stock includes 10,657.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-093879 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 17,992.578

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 10,657.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-093879 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,496.836

F1 · shares: On August 6, 2020, the Reporting Person was granted restricted stock units ("RSUs") for 4,047.000 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 13,691.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091757 · ownership.xml · nonDerivative · entry 5

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,998.09

F9 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2024.

F8 · balance_after: The number of shares of KLA common stock includes 14,702.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091757 · ownership.xml · nonDerivative · entry 4

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,707.09

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 14,702.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091757 · ownership.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,660.514

F5 · shares: On August 5, 2021, the Reporting Person was granted restricted stock units ("RSUs") for 2,562.000 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 16,625.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091757 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,977.827

F3 · shares: On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 2,980.000 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 17,265.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-091757 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,347.199

F1 · shares: On August 3, 2023, the Reporting Person was granted restricted stock units ("RSUs") for 2,649.000 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 18,010.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090719 · ownership.xml · nonDerivative · entry 3

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,675.915

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 first tranche was for a target number of shares equal to 1,678.000 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.

F6 · balance_after: The number of shares of KLA common stock includes 18,673.955 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090719 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,477.735

F3 · 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 2,563.000 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.

F4 · balance_after: The number of shares of KLA common stock includes 16,475.775 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-090719 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,633.235

F1 · shares: On August 1, 2024, 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 12,631.275 shares issuable upon vesting of RSUs.

SEC source: 0000950170-24-081489 · ownership.xml · nonDerivative · entry 2

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,210.96

F4 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2024.

F3 · balance_after: The number of shares of KLA common stock includes 10,209 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-081489 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,254.96

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 10,209 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-055605 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,210.348

F1 · shares: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2024.

F2 · balance_after: The number of shares of KLA common stock includes 10,209 shares issuable upon vesting of restricted stock units ("RSUs").

SEC source: 0000950170-24-035333 · ownership.xml · nonDerivative · entry 1

Lorig Brian · CIK 0001697041 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,747.348

F1 · shares: Pursuant to the terms of the restricted stock unit ("RSU") grant by the registrant on March 29, 2019, shares of KLA common stock were automatically withheld to cover required tax withholding on the 6,630 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 10,209 shares issuable upon vesting of 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: 0001209191-23-044952 · 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: 0001209191-23-044952 · 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: 0001209191-23-044952 · 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: 0001209191-23-044777 · 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: 0001209191-23-044412 · 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: 0001209191-23-044396 · 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.