Oreste Donzella - 03 Aug 2021 Form 4 Insider Report for KLA CORP (KLAC)

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KLAC	Common Stock	Sale	$326,396	-940	-16%	$347.23	5,069	03 Aug 2021	Direct	F1
transaction	KLAC	Common Stock - Restricted Stock Units	Options Exercise	$0	-2,345	-7.1%	$0.000000	30,721	03 Aug 2021	Direct	F2, F3, F4
transaction	KLAC	Common Stock	Options Exercise	$0	+2,345	+46%	$0.000000	7,414	03 Aug 2021	Direct	F3
transaction	KLAC	Common Stock	Tax liability	$403,433	-1,163	-16%	$346.89	6,251	03 Aug 2021	Direct	F5
transaction	KLAC	Common Stock - Restricted Stock Units	Options Exercise	$0	-938	-3.1%	$0.000000	29,783	03 Aug 2021	Direct	F2, F4, F6
transaction	KLAC	Common Stock	Options Exercise	$0	+938	+15%	$0.000000	7,189	03 Aug 2021	Direct	F6
transaction	KLAC	Common Stock	Tax liability	$161,651	-466	-6.5%	$346.89	6,723	03 Aug 2021	Direct	F5

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

Id	Content
F1	This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 22, 2021.
F2	Each restricted stock unit ("RSU") represents a contingent right to receive one share of KLA common stock.
F3	The remaining fifty percent (50%) of the performance-based RSUs that were granted to the Reporting Person on August 3, 2017, vested upon his completion of four years of service following the grant of the award.
F4	Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals. Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.
F5	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, 2021.
F6	On August 3, 2017, the Reporting Person was granted RSUs for 3,752 shares of KLA common stock. On August 3, 2021, the remaining 25% of the RSUs vested.