Sec Form 4 Filing - Lorig Brian @ KLA CORP - 2024-08-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Lorig Brian 2. Issuer Name and Ticker or Trading Symbol KLA CORP [ KLAC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Executive Vice President (Last) (First) (Middle) ONE TECHNOLOGY DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 08/01/2024 (Street) MILPITAS, CA95035 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 08/01/2024 A 2,422.275 ( 1 ) A $ 0 16,633.235 ( 2 ) D Common Stock 08/01/2024 A 3,844.5 ( 3 ) A $ 0 20,477.735 ( 4 ) D Common Stock 08/01/2024 A 2,198.18 ( 5 ) A $ 0 22,675.915 ( 6 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Lorig Brian ONE TECHNOLOGY DRIVE MILPITAS, CA95035 Executive Vice President Signatures /s/ Jeffrey S. Cannon, as attorney-in-fact for Brian Lorig 08/05/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )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. ( 2 )The number of shares of KLA common stock includes 12,631.275 shares issuable upon vesting of RSUs. ( 3 )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. ( 4 )The number of shares of KLA common stock includes 16,475.775 shares issuable upon vesting of RSUs. ( 5 )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. ( 6 )The number of shares of KLA common stock includes 18,673.955 shares issuable upon vesting of RSUs.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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