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KLA Corporation

TechnologyS&P 500NASDAQ 100

KLA Corporation insider trading

KLA Corporation files with the SEC as a Optical Instruments & Lenses company headquartered in Milpitas, CA. Every time one of its executives or directors buys or sells the stock, the filing appears here the moment it reaches the SEC — with grants and option exercises set apart from the trades that cost the insider their own money.

From SEC filings

Recent KLAC insider transactions

6 insiders traded KLAC on the open market between Aug 04, 2026 and Sep 15, 2026 — 13 sales worth $65.4M, of which every one was pre-scheduled under a 10b5-1 plan.

Bought
—
Sold
$65.4M

13 of 13 on a 10b5-1 plan

Net
−$65.4M
Insiders
6

Open-market purchases (code P) and sales (code S) from KLA Corporation's own SEC Form 4 filings. Grants and option exercises are excluded — they are compensation, not decisions. Share counts are derived from the reported value and price. Verify any figure against the original filing before acting on it; this is monitoring, not advice.

Filing history last read from EDGAR on Sep 25, 2026. The live dashboard shows new filings the moment they clear.

Every KLAC Form 4 on SEC.gov

SEC Form 4 data, Q3 2024 to Q2 2026

KLAC insider trading by quarter

Between Jul 01, 2024 and Jun 30, 2026, 7 insiders traded KLAC on the open market: 0 purchases and 35 sales worth $129.2M, 33 of the sales pre-scheduled under a 10b5-1 plan. In the last four quarters alone: 0 purchases and 18 sales ($75.4M), by 7 insiders.

QuarterBoughtSold
Q2 2026—−$19.7M4 sales · 2 on a plan
Q1 2026——
Q4 2025—−$15.8M2 sales · all on a plan
Q3 2025—−$39.9M12 sales · all on a plan
Q2 2025—−$9.3M3 sales · all on a plan
Q1 2025—−$5.1M1 sale · all on a plan
Q4 2024—−$9.5M1 sale · all on a plan
Q3 2024—−$29.9M12 sales · all on a plan
Largest sale
−$13M of KLAC by Wallace Richard P (President and CEO) on Nov 11, 2025, under a 10b5-1 plan.

Open-market transactions through Jun 30, 2026most recent first

  • Wallace Richard P10b5-1

    President and CEO

    −$10M

    Jun 11, 2026

    4,512 sh · $2,213.37

  • Wallace Richard P10b5-1

    President and CEO

    −$8.1M

    May 12, 2026

    4,512 sh · $1,794.00

  • Hanley Jeneanne Michelle

    Director

    −$1M

    May 11, 2026

    550 sh · $1,874.71

  • Kirloskar Virendra A

    SVP & Chief Accounting Officer

    −$558.1K

    May 11, 2026

    297 sh · $1,879.02

  • Higgins Bren D.10b5-1

    EVP & Chief Financial Officer

    −$2.8M

    Dec 16, 2025

    2,254 sh · $1,237.01

  • Wallace Richard P10b5-1

    President and CEO

    −$13M

    Nov 11, 2025

    10,803 sh · $1,203.10

  • Khan Ahmad A.10b5-1

    President, Semi. Prod. & Cust.

    −$4.1M

    Sep 05, 2025

    4,564 sh · $900.00

  • Khan Ahmad A.10b5-1

    President, Semi. Prod. & Cust.

    −$12.1M

    Aug 29, 2025

    13,716 sh · $881.50

  • Higgins Bren D.10b5-1

    EVP & Chief Financial Officer

    −$2M

    Aug 20, 2025

    2,301 sh · $878.53

  • Wallace Richard P10b5-1

    President and CEO

    −$9.9M

    Aug 12, 2025

    10,801 sh · $913.68

  • Lorig Brian10b5-1

    EVP, KLA Global Services

    −$7.4M

    Aug 12, 2025

    8,049 sh · $913.68

  • Wilkinson Mary Beth10b5-1

    EVP, CLO and Secretary

    −$933.1K

    Aug 08, 2025

    1,022 sh · $913.00

  • Kirloskar Virendra A10b5-1

    SVP & Chief Accounting Officer

    −$308.6K

    Aug 08, 2025

    338 sh · $913.00

  • Wilkinson Mary Beth10b5-1

    EVP, CLO and Secretary

    −$1.8M

    Aug 05, 2025

    1,920 sh · $917.00

  • Kirloskar Virendra A10b5-1

    SVP & Chief Accounting Officer

    −$468.6K

    Aug 05, 2025

    511 sh · $917.00

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

KLA Corporation company record

SEC industry classification
Optical Instruments & Lenses
Headquarters
Milpitas, CA
Incorporated in
DE
Listed on
Nasdaq
SEC Central Index Key
0000319201
Previously filed as
KLA TENCOR CORP

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

After insiders bought KLAC

What the stock actually did in the 90 days following each open-market purchase

Don't check KLAC — let it ping you

Get told the moment an insider moves on KLAC

Pro watches KLA Corporation for you and sends a Telegram ping within moments of a Form 4 clearing EDGAR — a C-suite open-market buy, a cluster, a 10b5-1 regime break — long before it reaches the press. Add KLAC to a watchlist, see each mover's benchmark-measured track record and which legendary funds hold it, and read the full filing history instead of the last 72 hours.

Track KLAC on the live dashboardFilings on SEC.gov

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

How to read KLAC insider activity

Open-market purchase (code P)
An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.
Grants and option exercises (codes A, M)
Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.
Cluster buy
Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

Other Technology tickers

ADISNPSCDNSMRVLNXPIMCHPONPANWCRWDFTNTANETACN
This week on the tape: who actually chose to sellThe weekly split of scheduled 10b5-1 selling vs deliberate sales, with the deciders named.

Questions

Are KLAC insiders buying or selling?
Between Aug 04, 2026 and Sep 15, 2026, 6 KLA Corporation insiders made no open-market purchases and 13 sales worth $65.4M, a net sale of $65.4M. 13 of the sales were pre-scheduled under a Rule 10b5-1 plan.
How much KLAC stock have insiders bought and sold in the last two years?
Between Jul 01, 2024 and Jun 30, 2026, 7 KLA Corporation insiders made no open-market purchases and 35 sales worth $129.2M. 33 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: no purchases and 18 sales ($75.4M). The largest sale was Wallace Richard P selling $13M on Nov 11, 2025.
What was the largest recent KLAC insider trade?
Wallace Richard P (President and CEO) sold $17.4M of KLAC stock on Aug 11, 2026 at about $198.95 a share, under a pre-scheduled 10b5-1 plan.
When did an insider last buy KLAC shares?
No open-market purchase by a KLA Corporation insider appears in the filings from Aug 04, 2026 to Sep 15, 2026 — every recorded open-market transaction in that period was a sale.
Where does KLAC insider trading data come from?
From the Form 4 filings KLA Corporation's officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.

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