Richard P. Wallace - 06 Aug 2026 Form 4 Insider Report for KLA CORP (KLAC)

Reporting relationship: President and CEO
Issuer ticker: KLAC
Reported as of: 06 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 Aug 2026, 16:05:03 UTC
Prior SEC filing: 04 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeffrey S. Cannon, as attorney-in-fact for Richard P. Wallace

Key filing fact

Richard P. Wallace filed Form 4 for KLA CORP (KLAC) on 07 Aug 2026.

Key facts

This page summarizes Richard P. Wallace's Form 4 filing for KLA CORP (KLAC).
5 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 07 Aug 2026, 16:05.

Change

Previous filing in this sequence was filed on 04 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001196898 Primary reporting owner

WALLACE RICHARD P

Relationship: President and CEO
Address: ONE TECHNOLOGY DRIVE, MILPITAS
Signature: /s/ Jeffrey S. Cannon, as attorney-in-fact for Richard P. Wallace
Signature date: 07 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KLAC transaction

Common Stock

Award

Transaction value
Shares: +352,875
Change %: +67%
Price: $0.000000^*
Shares after: 878,660
Date: 06 Aug 2026
Ownership: Direct
Footnotes: F1, F2

KLAC transaction

Common Stock

Tax liability

Transaction value
Shares: -87,481
Change %: -10%
Price: $192.80^*
Shares after: 791,178
Date: 06 Aug 2026
Ownership: Direct
Footnotes: F3, F4

KLAC transaction

Common Stock

Award

Transaction value
Shares: +93,721
Change %: +12%
Price: $0.000000^*
Shares after: 884,899
Date: 06 Aug 2026
Ownership: Direct
Footnotes: F5, F6

KLAC transaction

Common Stock

Tax liability

Transaction value
Shares: -46,467
Change %: -5.3%
Price: $192.80^*
Shares after: 838,432
Date: 06 Aug 2026
Ownership: Direct
Footnotes: F3, F4

KLAC transaction

Common Stock

Award

Transaction value
Shares: +40,841
Change %: +4.9%
Price: $0.000000^*
Shares after: 879,273
Date: 06 Aug 2026
Ownership: Direct
Footnotes: F7, F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

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 235,250.000 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.

Footnote F2

The number of shares of KLA common stock includes 548,313.980 shares issuable upon vesting of RSUs.

Footnote F3

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.

Footnote F4

The number of shares of KLA common stock includes 371,868.980 shares issuable upon vesting of RSUs.

Footnote F5

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, 93,721.000 shares vested.

Footnote F6

The number of shares of KLA common stock includes 465,589.980 shares issuable upon vesting of RSUs.

Footnote F7

On August 6, 2026, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.

Footnote F8

The number of shares of KLA common stock includes 412,710.215 shares issuable upon vesting of RSUs.