KLAC's three largest insider shareholders as of October 01, 2026 are Richard P Wallace (President And Ceo, 706.92K shares), Edward W Barnholt (Director, 508.62K shares), Oreste Donzella (Executive Vice President, 339.34K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Richard P Wallace | President And Ceo | 706,925 | 0 | 706,925 | 20.5% | 16 Sep, 2026 |
| 2 | Edward W Barnholt | Director | 0 | 508,620 | 508,620 | 14.8% | 12 Aug, 2022 |
| 3 | Oreste Donzella | Executive Vice President | 339,340 | 0 | 339,340 | 9.8% | 26 Jul, 2024 |
| 4 | Bren D. Higgins | Evp Chief Financial Officer | 307,815 | 0 | 307,815 | 8.9% | 13 Aug, 2026 |
| 5 | Gary B Moore | Director | 300,560 | 0 | 300,560 | 8.7% | 08 Nov, 2024 |
| 6 | Emiko Higashi | Director | 295,320 | 0 | 295,320 | 8.6% | 08 Nov, 2024 |
| 7 | Ahmad A. Khan | President, Semi. Prod. Cust. | 238,045 | 0 | 238,045 | 6.9% | 12 Aug, 2026 |
| 8 | Robert A. Rango | Director | 233,860 | 0 | 233,860 | 6.8% | 08 Nov, 2024 |
| 9 | Brian Lorig | Evp, Kla Global Services | 77,681 | 0 | 77,681 | 2.3% | 14 Aug, 2026 |
| 10 | Robert Calderoni | Director | 74,019 | 0 | 74,019 | 2.1% | 06 Feb, 2026 |
| 11 | Jeneanne Michelle Hanley | Director | 71,015 | 0 | 71,015 | 2.1% | 12 May, 2026 |
| 12 | Marie Myers | Director | 70,600 | 0 | 70,600 | 2.0% | 03 Nov, 2023 |
| 13 | Kevin Kennedy | Director | 64,295 | 0 | 64,295 | 1.9% | 07 Nov, 2025 |
| 14 | Mary Beth Wilkinson | Evp, Clo And Secretary | 37,032 | 0 | 37,032 | 1.1% | 11 Aug, 2026 |
| 15 | Victor Peng | Director | 35,015 | 0 | 35,015 | 1.0% | 07 Nov, 2025 |
| 16 | Kiran M Patel | Director | 25,240 | 0 | 25,240 | 0.7% | 04 Nov, 2022 |
| 17 | Michael R. Mcmullen | Director | 23,575 | 0 | 23,575 | 0.7% | 07 Nov, 2025 |
| 18 | Virendra A Kirloskar | Svp Chief Accounting Officer | 13,242 | 0 | 13,242 | 0.4% | 11 Aug, 2026 |
| 19 | Jamie Samath | Director | 7,555 | 0 | 7,555 | 0.2% | 07 Nov, 2025 |
| 20 | Susan J.S. Taylor | Director | 7,395 | 0 | 7,395 | 0.2% | 07 Nov, 2025 |
| 21 | Jason Conley | Director | 4,075 | 0 | 4,075 | 0.1% | 07 Nov, 2025 |
| 22 | Tracy A Embree | Director | 4,075 | 0 | 4,075 | 0.1% | 07 Nov, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 13 Aug, 2026 | Brian Lorig | Evp, Kla Global Services | Disposed S | 59,586 | $208.13 | $12.40Mn | 77,681 | Direct |
| 12 Aug, 2026 | Bren D. Higgins | Evp Chief Financial Officer | Disposed S | 31,500 | $209.87 | $6.61Mn | 307,815 | Direct |
| 11 Aug, 2026 | Ahmad A. Khan | President, Semi. Prod. Cust. | Disposed S | 33,180 | $198.95 | $6.60Mn | 238,045 | Direct |
| 11 Aug, 2026 | Richard P Wallace | President And Ceo | Disposed S | 87,568 | $198.95 | $17.42Mn | 778,944 | Direct |
| 10 Aug, 2026 | Virendra A Kirloskar | Svp Chief Accounting Officer | Disposed S | 529 | $204.56 | $108.21K | 13,242 | Direct |
| 10 Aug, 2026 | Mary Beth Wilkinson | Evp, Clo And Secretary | Disposed S | 1,661 | $204.56 | $339.77K | 37,032 | Direct |
| 07 Aug, 2026 | Richard P Wallace | President And Ceo | Disposed F | 12,762 | $193.22 | $2.47Mn | 866,512 | Direct |
| 07 Aug, 2026 | Virendra A Kirloskar | Svp Chief Accounting Officer | Disposed F | 521 | $193.22 | $100.59K | 16,176 | Direct |
| 07 Aug, 2026 | Bren D. Higgins | Evp Chief Financial Officer | Disposed F | 4,532 | $193.22 | $875.60K | 339,315 | Direct |
| 07 Aug, 2026 | Brian Lorig | Evp, Kla Global Services | Disposed F | 2,876 | $193.22 | $555.63K | 137,267 | Direct |
| 07 Aug, 2026 | Mary Beth Wilkinson | Evp, Clo And Secretary | Disposed F | 1,208 | $193.22 | $233.46K | 60,524 | Direct |
| 07 Aug, 2026 | Ahmad A. Khan | President, Semi. Prod. Cust. | Disposed F | 4,532 | $193.22 | $875.60K | 271,225 | Direct |
| 07 Aug, 2026 | Virendra A Kirloskar | Svp Chief Accounting Officer | Disposed S | 2,405 | $197.57 | $475.16K | 13,771 | Direct |
| 07 Aug, 2026 | Mary Beth Wilkinson | Evp, Clo And Secretary | Disposed S | 21,831 | $197.57 | $4.31Mn | 38,693 | Direct |
| 05 Aug, 2026 | Ahmad A. Khan | President, Semi. Prod. Cust. | Acquired A | 24,411 | $0.00 | $0 | 178,508 | Direct |
| 05 Aug, 2026 | Bren D. Higgins | Evp Chief Financial Officer | Acquired A | 24,411 | $0.00 | $0 | 246,598 | Direct |
| 05 Aug, 2026 | Mary Beth Wilkinson | Evp, Clo And Secretary | Acquired A | 5,070 | $0.00 | $0 | 27,180 | Direct |
| 05 Aug, 2026 | Brian Lorig | Evp, Kla Global Services | Acquired A | 15,961 | $0.00 | $0 | 97,663 | Direct |
| 05 Aug, 2026 | Virendra A Kirloskar | Svp Chief Accounting Officer | Acquired A | 1,549 | $0.00 | $0 | 9,522 | Direct |
| 06 Aug, 2026 | Richard P Wallace | President And Ceo | Acquired A | 352,875 | $0.00 | $0 | 878,660 | Direct |