Company · Ownership research

KLA CORP KLAC

CIK 0000319201

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 55 rows; the complete set is available through the API.

Insider filings on file run through Nov 5, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $233.68M

Nov 1, 2023 – Nov 5, 2026
Available records · partial months are marked ·

202610 of 20 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Sep 15, 2026	WALLACE RICHARD P President and CEO	Sale10b5-1 footnote	$12.38M 72,019 shares sold	9.25% sold Direct holding	▾
Aug 13, 2026	Lorig Brian EVP, KLA Global Services	Sale10b5-1 footnote	$12.40M 59,586 shares sold	43.41% sold Direct holding	▾
Aug 12, 2026	Higgins Bren D. EVP & Chief Financial Officer	Sale10b5-1 footnote	$6.61M 31,500 shares sold	9.28% sold Direct holding	▾
Aug 11, 2026	Khan Ahmad A. President, Semi. Prod. & Cust.	Sale10b5-1 footnote	$6.60M 33,180 shares sold	12.23% sold Direct holding	▾
Aug 11, 2026	WALLACE RICHARD P President and CEO	Sale10b5-1 footnote	$17.42M 87,568 shares sold	10.11% sold Direct holding	▾
Aug 10, 2026	Kirloskar Virendra A SVP & Chief Accounting Officer	Sale10b5-1 footnote	$108.21K 529 shares sold	3.84% sold Direct holding	▾
Aug 10, 2026	Wilkinson Mary Beth EVP, CLO and Secretary	Sale10b5-1 footnote	$339.77K 1,661 shares sold	4.29% sold Direct holding	▾
Aug 7, 2026	Wilkinson Mary Beth EVP, CLO and Secretary	Sale10b5-1 footnote	$4.31M 21,831 shares sold	36.07% sold Direct holding	▾
Aug 7, 2026	Kirloskar Virendra A SVP & Chief Accounting Officer	Sale10b5-1 footnote	$475.16K 2,405 shares sold	14.87% sold Direct holding	▾
Aug 5, 2026	Wilkinson Mary Beth EVP, CLO and Secretary	Sale10b5-1 footnote	$2.70M 13,802 shares sold	38.43% sold Direct holding	▾

Showing 20 / 20 record groups in 2026. The complete set is available through the API.

KLA CORP · KLAC

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{"action":"list","ticker":"KLAC","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.