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KLAC KLA Corporation Common Stock

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

-$65.4M net selling - trailing 90 days

0 buyers - 7 unique sellers

Historical context: most recent complete month (2026-09) is the 15th percentile of this ticker's monthly net P/S flow over 24 complete months. Lower percentiles are more selling; higher are more buying. P10–P90: -$12.8M to $0.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$100.0M$50.0M$0-$50.0M-$100.0M2024-10 $02024-11 -$9.5M2024-12 $02025-01 $02025-02 $02025-03 -$5.1M2025-04 $02025-05 -$8.2M2025-06 -$1.2M2025-07 -$35K2025-08 -$35.8M2025-09 -$4.1M2025-10 $02025-11 -$13.0M2025-12 -$2.8M2026-01 $02026-02 $02026-03 $02026-04 $02026-05 -$9.7M2026-06 -$10.0M2026-07 -$11.5M2026-08 -$53.0M2026-09 -$12.4MOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Who is responsible

Insider Role Net activity Rows
WALLACE RICHARD P President and CEO -~$17.4M 1
Lorig Brian EVP, KLA Global Services -~$12.4M 1
WALLACE RICHARD P President and CEO -~$12.4M 1
Wilkinson Mary Beth EVP, CLO and Secretary -~$8.2M 4
Higgins Bren D. EVP & Chief Financial Officer -~$6.6M 1
Khan Ahmad A. President, Semi. Prod. & Cust. -~$6.6M 1
Kirloskar Virendra A SVP & Chief Accounting Officer -~$1.8M 4

Transactions

Date Insider Role Type Shares Price Value
September 15, 2026 WALLACE RICHARD P President and CEO S -72019 171.88 ~$12.4M
August 13, 2026 Lorig Brian EVP, KLA Global Services S -59586 208.13 ~$12.4M
August 12, 2026 Higgins Bren D. EVP & Chief Financial Officer S -31500 209.87 ~$6.6M
August 11, 2026 WALLACE RICHARD P President and CEO S -87568 198.95 ~$17.4M
August 11, 2026 Khan Ahmad A. President, Semi. Prod. & Cust. S -33180 198.95 ~$6.6M
August 10, 2026 Kirloskar Virendra A SVP & Chief Accounting Officer S -529 204.56 ~$0.1M
August 10, 2026 Wilkinson Mary Beth EVP, CLO and Secretary S -1661 204.56 ~$0.3M
August 7, 2026 Kirloskar Virendra A SVP & Chief Accounting Officer S -2405 197.57 ~$0.5M
August 7, 2026 Wilkinson Mary Beth EVP, CLO and Secretary S -21831 197.57 ~$4.3M
August 5, 2026 Kirloskar Virendra A SVP & Chief Accounting Officer S -4504 195.5 ~$0.9M
August 5, 2026 Wilkinson Mary Beth EVP, CLO and Secretary S -13802 195.5 ~$2.7M
August 4, 2026 Wilkinson Mary Beth EVP, CLO and Secretary S -4295 191.59 ~$0.8M
August 4, 2026 Kirloskar Virendra A SVP & Chief Accounting Officer S -1565 191.59 ~$0.3M
July 2, 2026 Higgins Bren D. EVP & Chief Financial Officer S -27701 265.69 ~$7.4M
July 2, 2026 Kirloskar Virendra A SVP & Chief Accounting Officer S -196 265.69 ~$52K
July 1, 2026 Wilkinson Mary Beth EVP, CLO and Secretary S -14392 285.3 ~$4.1M
June 11, 2026 WALLACE RICHARD P President and CEO S -4512 2213.37 ~$10.0M
May 12, 2026 WALLACE RICHARD P President and CEO S -4512 1794 ~$8.1M
May 11, 2026 Hanley Jeneanne Michelle — S -550 1874.706 ~$1.0M
May 11, 2026 Kirloskar Virendra A SVP & Chief Accounting Officer S -297 1879.02 ~$0.6M
December 16, 2025 Higgins Bren D. EVP & Chief Financial Officer S -2254 1237.01 ~$2.8M
November 11, 2025 WALLACE RICHARD P President and CEO S -10803 1203.1 ~$13.0M
September 5, 2025 Khan Ahmad A. President, Semi. Prod. & Cust. S -4564 900 ~$4.1M
August 29, 2025 Khan Ahmad A. President, Semi. Prod. & Cust. S -13716 881.5 ~$12.1M
August 20, 2025 Higgins Bren D. EVP & Chief Financial Officer S -2301 878.53 ~$2.0M
August 12, 2025 WALLACE RICHARD P President and CEO S -10801 913.68 ~$9.9M
August 12, 2025 Lorig Brian EVP, KLA Global Services S -8049 913.68 ~$7.4M
August 8, 2025 Wilkinson Mary Beth EVP, CLO and Secretary S -1022 913 ~$0.9M
August 8, 2025 Kirloskar Virendra A SVP & Chief Accounting Officer S -338 913 ~$0.3M
August 5, 2025 Wilkinson Mary Beth EVP, CLO and Secretary S -1920 917 ~$1.8M
August 5, 2025 Kirloskar Virendra A SVP & Chief Accounting Officer S -511 917 ~$0.5M
August 4, 2025 Kirloskar Virendra A SVP & Chief Accounting Officer S -320 896.75 ~$0.3M
August 4, 2025 Wilkinson Mary Beth EVP, CLO and Secretary S -763 896.75 ~$0.7M
July 2, 2025 Kirloskar Virendra A SVP & Chief Accounting Officer S -39 891.5 ~$35K
June 30, 2025 Wilkinson Mary Beth EVP, CLO and Secretary S -1320 891.16 ~$1.2M
May 22, 2025 Higgins Bren D. EVP & Chief Financial Officer S -1019 766.46 ~$0.8M
May 6, 2025 WALLACE RICHARD P President and CEO S -10802 683.3 ~$7.4M
March 25, 2025 Higgins Bren D. EVP & Chief Financial Officer S -7008 724.62 ~$5.1M
November 12, 2024 WALLACE RICHARD P President and CEO S -14306 663.01 ~$9.5M