Brian Lorig - 04 Aug 2026 Form 4 Insider Report for KLA CORP (KLAC)

Reporting relationship: EVP, KLA Global Services
Issuer ticker: KLAC
Reported as of: 04 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Aug 2026, 16:05:06 UTC
Prior SEC filing: 03 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeffrey S. Cannon, as attorney-in-fact for Brian Lorig

Key filing fact

Brian Lorig filed Form 4 for KLA CORP (KLAC) on 04 Aug 2026.

Key facts

This page summarizes Brian Lorig's Form 4 filing for KLA CORP (KLAC).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 04 Aug 2026, 16:05.

Change

Previous filing in this sequence was filed on 03 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 0001697041 Primary reporting owner

Lorig Brian

Relationship: EVP, KLA Global Services
Address: ONE TECHNOLOGY DRIVE, MILPITAS
Signature: /s/ Jeffrey S. Cannon, as attorney-in-fact for Brian Lorig
Signature date: 04 Aug 2026

Reported non-derivative transactions

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

KLAC transaction

Common Stock

Tax liability

Transaction value
Shares: -3,694
Change %: -3.8%
Price: $182.75^*
Shares after: 92,783
Date: 04 Aug 2026
Ownership: Direct
Footnotes: F1, F2

KLAC transaction

Common Stock

Tax liability

Transaction value
Shares: -11,081
Change %: -12%
Price: $182.75^*
Shares after: 81,702
Date: 04 Aug 2026
Ownership: Direct
Footnotes: F3, F4

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") of shares of KLA common stock. On August 4, 2026, 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 3, 2026.

Footnote F2

The number of shares of KLA common stock includes 64,247.150 shares issuable upon vesting of RSUs.

Footnote F3

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") for a target number of shares of KLA common stock. On August 7, 2025, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied. The remaining fifty percent (50%) of the PRSUs vested on August 4, 2026. 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, 2026.

Footnote F4

The number of shares of KLA common stock includes 41,897.150 shares issuable upon vesting of RSUs.