Brian Lorig - 01 Aug 2025 Form 4 Insider Report for KLA CORP (KLAC)

Role: EVP, KLA Global Services
Signature: /s/ Jeffrey S. Cannon, as attorney-in-fact for Brian Lorig
Issuer symbol: KLAC
Transactions as of: 01 Aug 2025
Transactions value $: -$264,109
Form type: 4
Date filed: 05 Aug 2025, 16:05
Previous filing: 02 Jul 2025
Next filing: 05 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Lorig Brian	EVP, KLA Global Services	ONE TECHNOLOGY DRIVE, MILPITAS	/s/ Jeffrey S. Cannon, as attorney-in-fact for Brian Lorig	2025-08-05	0001697041

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KLAC	Common Stock	Tax liability	-$264K	-300	-2.2%	$879.03	13.4K	01 Aug 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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	The number of shares of KLA common stock includes 7,853.775 shares issuable upon vesting of RSUs.

Content

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.

The number of shares of KLA common stock includes 7,853.775 shares issuable upon vesting of RSUs.