[Form 4] KLA Corporation Insider Trading Activity

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Khan Ahmad A.

Role President, Semi. Prod. & Cust.

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	2,501.064	$915.62	$2.29M
Tax Withholding	Common Stock	833.44	$915.62	$763K

Holdings After Transaction: Common Stock — 25,040.917 shares (Direct)

Footnotes (1)

1. 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. The number of shares of KLA common stock includes 8,884.412 shares issuable upon vesting of restricted stock units ("RSUs"). On August 5, 2021, the Reporting Person was granted restricted stock units ("RSUs") for 6,727.000 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. The number of shares of KLA common stock includes 7,203.412 shares issuable upon vesting of RSUs.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Khan Ahmad A.

(Last) (First) (Middle)

ONE TECHNOLOGY DRIVE

(Street)

MILPITAS CA 95035

(City) (State) (Zip)

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)
	President, Semi. Prod. & Cust.

3. Date of Earliest Transaction (Month/Day/Year)
08/05/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	08/05/2025		F		2,501.064(1)	D	$915.62	25,040.917(2)	D
Common Stock	08/05/2025		F		833.44(3)	D	$915.62	24,207.477(4)	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. 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.

2. The number of shares of KLA common stock includes 8,884.412 shares issuable upon vesting of restricted stock units ("RSUs").

3. On August 5, 2021, the Reporting Person was granted restricted stock units ("RSUs") for 6,727.000 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.

4. The number of shares of KLA common stock includes 7,203.412 shares issuable upon vesting of RSUs.

	/s/ Jeffrey S. Cannon, as attorney-in-fact for Ahmad A. Khan	08/07/2025
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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