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KLA CORP (KLAC) S&P 500 NASDAQ-100 XNAS OPTICAL INSTRUMENTS & LENSES Net insider selling (90d) Watch KLAC
Latest KLAC Insider Trades KLA is one of the largest semiconductor wafer fabrication equipment, or WFE, manufacturers in the world. It specializes in the market segment of semiconductor process control, wherein machines inspect semiconductor wafers during research and development and manufacturing for defects and verify precise measurements. In this section of the market, KLA holds a majority share. It also has a small exposure to the etch and deposition segments of the WFE market. It counts as top customers the largest chipmakers in the world, including TSMC and Samsung.
Headquarters MILPITAS, CA
Employees 17,200
Listed 1980
Exchange XNAS https://www.kla.com SEC filings for KLAC on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 16 309,227 $74.48M Grant or award 17 983,320 Tax withholding / forfeiture 46 701,817
KLAC Insider Transactions (Form 4) 66 103 Form 4 filings on record, the earliest from Nov 8, 2024, newest first. Filing history page 1 of 3.
Date Insider Transaction Security Shares Price Value Aug 13, 2026 BL Brian Lorig - Officer Open-market sale Common Stock 59,586
Recent KLAC Form 8-K Filings 5
Recent KLAC Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 13, 2026 Lorig Brian Officer 59,586 $12.40M View on EDGAR Aug 12, 2026 Higgins Bren D. Officer
KLAC Insider Trading - FAQ
What is the latest insider trade for KLAC? KLA CORP (KLAC) had 40 insider filings in the last 90 days, with the most recent on 2026-08-14. The full record for KLAC runs to 103 Form 4 filings, the earliest from 2024-11-08. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying KLAC stock? No insider purchases of KLAC were filed in the last 90 days.
How many insiders are selling KLAC stock? 16 insider sales of KLAC were filed in the last 90 days, totaling $74.48M.
Where can I see KLAC SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks KLAC Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow KLAC insider buys? Create a free InsiderAlpha account and press Watch on this page to add KLAC to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Information Technology Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track KLAC insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
Sign up free Aug 12, 2026
Market cap $229.35B
P/E ratio 48.10
Dividend yield -
Average volume 12.62M
52 week high $307.37
52 week low $83.22
Today's high $182.60
Today's low $174.70
Open $182.04
Volume 9.97M
Previous close $183.77
Shares outstanding 1.31B Market cap
$229.35B
17,200 employees
KLAC Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 16 sales totaling $74.48M.
Most-Active KLAC Insiders - Last 90 Days 10 Other acquisition / disposition 5 980.8
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Aug 12, 2026 BH Bren D. Higgins - Officer Open-market sale Common Stock 31,500 $209.87 $6.61M
Aug 11, 2026 AK Ahmad A. Khan - Officer Open-market sale Common Stock 33,180 $198.95 $6.60M
Aug 11, 2026 RW Richard P. Wallace - Officer Open-market sale Common Stock 87,568 $198.95 $17.42M
Aug 7, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 12,762 $193.22 $2.47M
Aug 7, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 2,876 $193.22 $556K
Aug 7, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 1,208 $193.22 $233K
Aug 7, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 4,532 $193.22 $876K
Aug 7, 2026 BH Bren D. Higgins - Officer Tax withholding / forfeiture Common Stock 4,532 $193.22 $876K
Aug 5, 2026 AK Ahmad A. Khan - Officer Grant or award Common Stock 24,411 $0.00 -
Aug 6, 2026 AK Ahmad A. Khan - Officer Grant or award Common Stock 87,420 $0.00 -
Aug 6, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 21,671 $192.80 $4.18M
Aug 6, 2026 AK Ahmad A. Khan - Officer Grant or award Common Stock 62,476 $0.00 -
Aug 6, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 30,975 $192.80 $5.97M
Aug 5, 2026 BL Brian Lorig - Officer Grant or award Common Stock 15,961 $0.00 -
Aug 6, 2026 BL Brian Lorig - Officer Grant or award Common Stock 39,735 $0.00 -
Aug 6, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 9,854 $192.80 $1.90M
Aug 6, 2026 BL Brian Lorig - Officer Grant or award Common Stock 24,987 $0.00 -
Aug 6, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 12,389 $192.80 $2.39M
Aug 5, 2026 BH Bren D. Higgins - Officer Grant or award Common Stock 24,411 $0.00 -
Aug 6, 2026 BH Bren D. Higgins - Officer Grant or award Common Stock 87,420 $0.00 -
Aug 6, 2026 BH Bren D. Higgins - Officer Tax withholding / forfeiture Common Stock 21,671 $192.80 $4.18M
Aug 6, 2026 BH Bren D. Higgins - Officer Grant or award Common Stock 62,476 $0.00 -
Aug 6, 2026 BH Bren D. Higgins - Officer Tax withholding / forfeiture Common Stock 30,975 $192.80 $5.97M
Aug 6, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 5,355 $192.80 $1.03M
Aug 6, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 10,520 $192.80 $2.03M
Aug 6, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 87,481 $192.80 $16.87M
Aug 6, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 46,467 $192.80 $8.96M
Aug 4, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 2,509 $182.75 $459K
Aug 4, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 7,527 $182.75 $1.38M
Aug 4, 2026 BH Bren D. Higgins - Officer Tax withholding / forfeiture Common Stock 7,387 $182.75 $1.35M
Aug 4, 2026 BH Bren D. Higgins - Officer Tax withholding / forfeiture Common Stock 22,170 $182.75 $4.05M
Aug 4, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 7,759 $182.75 $1.42M
Aug 4, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 23,278 $182.75 $4.25M
Aug 4, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 3,694 $182.75 $675K
Aug 4, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 11,081 $182.75 $2.03M
Aug 4, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 19,951 $182.75 $3.65M
Aug 4, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 89,787 $182.75 $16.41M
Aug 1, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 4,504 $182.82 $823K
Aug 3, 2026 AK Ahmad A. Khan - Officer Tax withholding / forfeiture Common Stock 7,224 $182.82 $1.32M
Aug 1, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 13,213 $182.82 $2.42M
Aug 3, 2026 RW Richard P. Wallace - Officer Tax withholding / forfeiture Common Stock 19,440 $182.82 $3.55M
Aug 1, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 3,005 $182.82 $549K
Aug 3, 2026 BL Brian Lorig - Officer Tax withholding / forfeiture Common Stock 3,282 $182.82 $600K
Aug 1, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 1,339 $182.82 $245K
Aug 3, 2026 MW Mary Beth Wilkinson - Officer Tax withholding / forfeiture Common Stock 1,785 $182.82 $326K
Aug 11, 2026 WALLACE RICHARD P Officer, Director 87,568 $17.42M View on EDGAR
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