Every Form 4 that KLA Corporation (KLAC) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow KLAC and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full KLAC filings page.
KLA CORP (KLAC) reported that President and CEO Richard P. Wallace sold 72,019 shares of common stock on September 15, 2026, in a sale classified as an open market or private transaction at $171.88 per share. The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted on November 19, 2025. Following this sale, Wallace directly holds 706,924.5499 shares of KLA common stock, which includes 386,970.215 shares issuable upon vesting of restricted stock units (RSUs).
KLA CORP executive Brian Lorig, EVP of KLA Global Services, reported selling 59,586 shares of KLA common stock on August 13, 2026 at $208.13 per share in an open-market or private transaction. The sale was effected under a Rule 10b5-1 trading plan adopted on May 14, 2026. Following this transaction, Lorig directly holds 77,681.0919 shares of KLA common stock, including 71,918.092 shares issuable upon vesting of restricted stock units.
KLA CORP EVP & Chief Financial Officer Bren D. Higgins reported selling 31,500 shares of common stock on August 12, 2026 at $209.87 per share in an open-market or private transaction. The sale was effected under a Rule 10b5-1 trading plan adopted on May 11, 2026. Following this transaction, Higgins directly held 307,815.4359 shares of KLA common stock, including 128,244.613 shares issuable upon vesting of restricted stock units.
KLA CORP officer Ahmad A. Khan, President, Semi. Prod. & Cust., reported a sale of 33,180 shares of common stock on August 11, 2026 at $198.95 per share in an open-market or private transaction. The trade was effected under a Rule 10b5-1 trading plan adopted on May 11, 2026. Following the sale, Khan directly holds 238,044.9919 shares of KLA common stock, which includes 128,244.613 shares issuable upon vesting of restricted stock units (RSUs).
KLA CORP President and CEO Richard P. Wallace reported selling 87,568 shares of KLA common stock on August 11, 2026 at $198.95 per share in an open-market or private transaction. The transaction was effected under a Rule 10b5-1 trading plan adopted on November 19, 2025. Following this sale, he directly holds 778,943.5499 shares of KLA common stock, which includes 386,970.215 shares issuable upon vesting of restricted stock units (RSUs).
KLA CORP senior vice president and chief accounting officer Virendra A. Kirloskar reported a sale of 529 shares of common stock on 2026-08-10 at $204.56 per share in an open-market transaction pursuant to a Rule 10b5-1 trading plan. Following this sale, he holds 13,242.0399 shares directly, which includes 13,180.540 shares issuable upon vesting of restricted stock units.
KLA Corp executive Mary Beth Wilkinson, EVP, CLO and Secretary, reported a sale of 1,661 shares of KLA common stock on 2026-08-10 at $204.56 per share. The sale was made under a Rule 10b5-1 trading plan adopted on February 2, 2026. Following the transaction, she beneficially owns 37,032.032 shares, which includes 36,957.766 shares issuable upon vesting of RSUs.
KLA CORP President and CEO Richard P. Wallace reported a Code F transaction involving common stock. On August 7, 2026, 12,761.893 shares were withheld at $193.22 per share to satisfy tax withholding obligations upon vesting of previously granted restricted stock units (RSUs). Following this tax-withholding disposition, Wallace’s direct holdings total 866,511.5499 shares of KLA common stock, which includes 386,970.215 shares issuable upon vesting of RSUs.
KLA CORP executive Brian Lorig, EVP of KLA Global Services, reported an automatic tax-withholding transaction related to restricted stock units. On August 7, 2026, 25% of a prior RSU grant vested, and 2,875.64 shares of common stock were withheld at $193.22 per share to cover required taxes. After this withholding, Lorig’s directly held position totaled 137,267.0919 shares, including 71,918.092 shares issuable upon future RSU vesting.
KLA CORP executive Mary Beth Wilkinson, EVP, CLO and Secretary, reported two common stock transactions on August 7, 2026. First, 1,208.271 shares were disposed of at $193.22 per share to cover required tax withholding upon vesting of previously granted RSUs. Second, 21,831 shares were sold at $197.57 per share in a transaction effected under a Rule 10b5-1 trading plan adopted on February 2, 2026. Footnotes state that the reporting person’s holdings include 36,957.766 shares issuable upon vesting of RSUs.
KLA CORP executive Ahmad A. Khan, President, Semi. Prod. & Cust., reported an automatic tax-related share withholding. On August 7, 2026, 4,531.612 shares of common stock were withheld at a value of $193.22 per share to satisfy tax obligations arising from vesting of previously granted restricted stock units (RSUs). Following this withholding, Khan’s reported direct holdings totaled 271,224.9919 shares of KLA common stock, including shares issuable upon future RSU vesting.
KLA CORP EVP & Chief Financial Officer Bren D. Higgins reported an automatic tax-withholding transaction related to vesting restricted stock units. On August 7, 2026, 4,531.612 shares of common stock were withheld at $193.22 per share to cover tax liability upon vesting of 25% of an RSU grant made August 7, 2025. Following this withholding, Higgins directly held 339,315.4359 shares of KLA common stock, including 128,244.613 shares issuable upon future RSU vesting.
KLA CORP executive Virendra A. Kirloskar, SVP & Chief Accounting Officer, reported two transactions in common stock on August 7, 2026. First, 520.591 shares were disposed of at $193.22 per share to cover required tax withholding upon vesting of previously granted RSUs. The same day, he sold 2,405 shares at $197.57 per share in a transaction effected under a Rule 10b5-1 trading plan adopted on February 18, 2026. A related footnote states that his holdings include 13,180.540 shares issuable upon vesting of RSUs.
KLA CORP President Ahmad A. Khan reported multiple equity-compensation events. On August 5, 2026 he received 24,410.853 RSUs vesting 25% annually. On August 6, 2026 performance-based RSUs granted in 2022 and 2023 vested at maximum, delivering 87,420 and 62,475.700 shares, while 52,646.871 shares were withheld at $192.800 per share to cover tax obligations.
Brian Lorig, EVP of KLA Global Services, reported equity compensation activity in KLA common stock. On August 5–6, 2026 he acquired shares through RSU and PRSU awards, including 39735.0000 PRSU-related shares tied to maximum performance achievement, 24987.3000 shares from a 2022 PRSU tranche that vested, and 15960.9420 RSUs that vest 25% annually. On August 6, 9854.0250 and 12388.7040 shares were automatically withheld at $192.8000 per share to cover tax withholding. After these events, his reported holdings include substantial unvested RSU positions, such as 102,705.392 shares issuable upon future vesting.
KLA CORP reported equity compensation activity for SVP & Chief Accounting Officer Virendra A. Kirloskar. On August 5, 2026 he received 1,549.150 restricted stock units that vest 25% annually. On August 6, 2026 performance-based RSUs from a 2023 grant paid out at the maximum level, crediting 9,540 shares, while 2,364.967 shares were automatically withheld at $192.80 per share to cover required tax withholding.
KLA Corp EVP & Chief Financial Officer Bren D. Higgins reported equity compensation activity in KLA common stock. On August 5, 2026 he received a grant of 24,410.853 RSUs that vest 25% annually. On August 6, performance-based RSUs granted in 2023 with a 58,280-share target award were certified at the maximum level, and 62,475.700 shares from a 2022 PRSU grant vested. Across two code F transactions, a total of 52,646.871 shares were automatically withheld at a fair market value of $192.80 per share to satisfy tax withholding obligations. Footnotes also describe significant additional shares issuable upon vesting of RSUs.
KLA Corp executive Mary Beth Wilkinson, EVP, CLO and Secretary, reported equity compensation activity. On August 5, 2026 she received 5,069.946 restricted stock units that vest 25% annually. On August 6, 2026 performance-based RSUs from 2022 and 2023 awards were certified, covering 24,987.300 vested shares and a maximum of 25,440 shares, with 50% of the 2023 award vesting then and 50% scheduled for August 3, 2027, subject to continued service. In connection with these vestings, 5,355.121 and 10,519.654 shares of common stock were automatically withheld at $192.80 per share to satisfy required tax withholding.
KLA Corp President and CEO Richard P. Wallace reported several equity award events dated August 6, 2026. PRSUs granted in 2023 for 352,875 shares had performance conditions certified at the maximum level, with 50% vesting on August 6, 2026 and 50% on August 3, 2027. A 2022 PRSU tranche vested 93,721 shares, and he received a new RSU grant for 40,841.235 shares vesting 25% annually. In separate transactions, 87,481.432 and 46,466.872 shares were automatically withheld at a $192.80 fair market value per share to satisfy tax withholding obligations.
Mary Beth Wilkinson, Executive Vice President, Chief Legal Officer and Secretary of KLA Corp, reported a sale of 13,802 shares of KLA common stock on August 5, 2026 at $195.50 per share in an open-market or private transaction. After this transaction, she held 22,109.832 shares directly, which includes 22,037.820 shares issuable upon vesting of restricted stock units. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted on February 2, 2026, indicating the trades were made under a pre-arranged plan.
KLA Corp executive Virendra A. Kirloskar, SVP & Chief Accounting Officer, sold 4,504 shares of common stock on August 5, 2026 at $195.50 per share. The sale was effected under a Rule 10b5-1 trading plan adopted by the reporting person. After this transaction, he directly holds 7,972.4479 shares of KLA common stock, including 7,911.390 shares issuable upon vesting of restricted stock units (RSUs).
KLA CORP executive Mary Beth Wilkinson, EVP, CLO and Secretary, reported August 4, 2026 transactions in KLA common stock. Shares totaling 2,509.161 and 7,527.481 were automatically withheld at $182.75 per share to cover tax obligations on vesting RSUs and PRSUs from an August 4, 2022 grant. She also sold 4,295 shares at $191.59 pursuant to a Rule 10b5-1 trading plan adopted on February 2, 2026. Footnotes state her holdings continue to include 22,037.820 shares issuable upon vesting of RSUs.
KLA Corp SVP & Chief Accounting Officer Virendra A. Kirloskar reported two tax-withholding dispositions and one open-market sale of common stock on August 4, 2026. A total of 1105.6340 and 3324.3390 shares were withheld at $182.7500 per share to cover taxes on vested RSUs and PRSUs, and 1565.0000 shares were sold at $191.5900 per share pursuant to a Rule 10b5-1 trading plan adopted on February 18, 2026.
KLA CORP EVP & Chief Financial Officer Bren D. Higgins reported two tax-withholding dispositions of common stock tied to equity awards that vested on August 4, 2026. To cover related taxes on RSUs and PRSUs granted in 2022, 29,557.118 shares were automatically withheld at $182.75 per share. The vesting covered 25% of a 2022 RSU grant and the remaining 50% of related performance-based RSUs.
KLA Corp executive Ahmad A. Khan, President, Semi. Prod. & Cust., reported two F-code dispositions totaling 31,037.082 shares of common stock on August 4, 2026. Shares were automatically withheld at a value of $182.7500 per share to cover tax on vesting RSU and PRSU awards granted in 2022.
Footnotes state that his reported holdings include 116,213.760 and 69,263.760 shares issuable upon future vesting of RSUs.
KLA CORP executive Brian Lorig, EVP, KLA Global Services, reported two tax-withholding dispositions of common stock dated August 4, 2026. KLA automatically withheld 3693.7110 and 11081.1310 shares at $182.7500 per share to cover taxes upon vesting of previously granted RSUs and PRSUs. Footnotes indicate his position includes 64,247.150 and 41,897.150 shares issuable upon vesting of RSUs.
KLA Corp President and CEO Richard P. Wallace reported two code F transactions in which 19,950.993 and 89,786.901 shares of common stock were automatically withheld on August 4, 2026 at $182.75 per share to satisfy tax liabilities upon vesting of RSU and PRSU awards granted in 2022, representing tax-withholding dispositions rather than open-market sales.
Ahmad A. Khan, President, Semi. Prod. & Cust. at KLA Corp, reported tax-withholding dispositions of common stock tied to RSU vesting. On August 1, 2026, 4,503.907 shares of common stock were withheld at $182.82 per share, and on August 3, 2026, a further 7,223.806 shares were withheld at the same price. These events reflect 25% vesting of RSU grants dated August 1, 2024 and August 3, 2023, with shares automatically withheld to cover required tax obligations. Footnotes indicate his reported holdings include 146,433.760 and 131,863.760 shares issuable upon future RSU vesting.
KLA Corp President and CEO Richard P. Wallace reported two F-code transactions in KLA common stock, each reflecting shares automatically withheld to satisfy tax obligations upon RSU vesting. On August 1, 2026, 13,213.071 shares were withheld, and on August 3, 2026, a further 19,440.319 shares were withheld, both valued at $182.8200 per share, the July 31, 2026 closing price. Footnotes state that his reported position includes RSUs for 455,983.980 shares and 416,773.980 shares issuable upon future vesting.
KLA Corp executive Brian Lorig, EVP KLA Global Services, reported two tax-withholding dispositions of common stock tied to restricted stock unit (RSU) vesting. On August 1, 2026, 3004.549 shares and on August 3, 2026, 3282.197 shares were automatically withheld at $182.82 per share to cover required taxes as 25% of RSU grants from 2024 and 2023 vested. His share position also includes 78,317.150 and 71,697.150 shares issuable upon vesting of RSUs.
KLA Corp executive vice president and CFO Bren D. Higgins reported two tax-related share withholdings tied to restricted stock unit vesting. On August 1 and August 3, 2026, a total of 11,727.713 common shares were withheld at $182.8200 per share to cover tax obligations on earlier RSU grants. Footnotes indicate his reported holdings include 143,448.760 and 128,878.760 shares issuable upon future RSU vesting.
Mary Beth Wilkinson, KLA’s EVP, CLO and Secretary, reported two tax-withholding dispositions of common stock related to vesting restricted stock units. On August 1 and 3, 2026, a total of 3,123.821 shares were automatically withheld at $182.82 per share to cover required tax obligations. Footnotes state that the reported share counts include 50,117.820 and 45,877.820 shares issuable upon future vesting of RSUs.
KLA CORP executive Virendra A. Kirloskar, SVP & Chief Accounting Officer, reported two tax-withholding dispositions of common stock tied to restricted stock unit (RSU) vesting. On August 1, 2026, 373.464 shares were withheld at a fair market value of $182.82 per share, when 25% of RSUs granted on August 1, 2024 vested.
On August 3, 2026, a further 730.185 shares were withheld at $182.82 per share as 25% of RSUs granted on August 3, 2023 vested. Footnotes state his share position includes 18,436.390 and 16,846.390 shares issuable upon future RSU vesting. The fair market value used for withholding was the July 31, 2026 closing price.
KLA CORP Executive Vice President and Chief Financial Officer Bren D. Higgins sold 27,701 shares of KLA common stock in an open-market transaction. The sale occurred on July 2, 2026 at an average price of $265.69 per share pursuant to a Rule 10b5-1 trading plan adopted on May 5, 2025.
Following this transaction, Higgins directly holds about 263,472.1969 shares of KLA common stock. This figure includes 152,532.880 shares issuable upon vesting of restricted stock units, so a significant portion of his reported position remains tied to future equity vesting.
KLA CORP senior vice president and chief accounting officer Virendra A. Kirloskar reported small changes in his KLA stock holdings. On July 2, 2026, he executed an open-market sale of 196 shares of common stock at $265.69 per share, carried out under a pre-arranged Rule 10b5-1 trading plan adopted on February 18, 2026.
Earlier, on June 30, 2026, 196.1599 shares were purchased under KLA’s employee stock purchase plan at a price of $108.33 per share, representing 85% of the closing price on January 2, 2026, the first day of that ESPP offering period. After these transactions, Kirloskar holds 19,575.0699 KLA shares directly, a figure that includes 19,516.390 shares issuable upon vesting of restricted stock units.
KLA CORP executive Brian Lorig reported routine equity compensation-related transactions. On June 30, 2026, 24,651.900 performance-based restricted stock units vested, and 12,222.413 shares of common stock were automatically withheld at $278.39 per share to cover tax obligations, rather than sold on the open market. A separate transaction coded "J" involved 196.1599 shares at $108.33 per share, noted as an "other" transaction, with footnotes indicating purchase under KLA’s employee stock purchase plan. Following these events, Lorig held 114,986.2199 shares of KLA common stock directly, including 84,377.150 shares issuable upon future RSU vesting.
KLA CORP EVP & Chief Financial Officer Bren D. Higgins reported compensation-related share movements. On June 30, 2026, 61,651.800 performance-based RSUs vested, and 30,566.963 shares of common stock were automatically withheld at $278.39 per share to cover tax obligations, rather than sold on the market.
Higgins also acquired 196.1599 shares of common stock under KLA’s employee stock purchase plan at $108.33 per share, equal to 85% of the January 2, 2026 closing price. After these updates, his holdings total 321,740.1599 shares, including 152,532.880 shares issuable upon vesting of RSUs.
KLA Corp President and CEO Richard P. Wallace reported routine equity compensation-related transactions in KLA common stock. On June 30, 2026, 92,477.700 performance-based restricted stock units vested following the Board’s prior determination that the applicable performance conditions for the second tranche were satisfied.
To cover required tax withholding on the vested shares, 45,850.444 shares were automatically withheld at a price of $278.39 per share, a non-market, tax-withholding disposition. Separately, he acquired 196.1599 shares at $108.33 per share under the employee stock purchase plan, reflecting 85% of the closing price on January 2, 2026, the first day of that offering period.
After these transactions, Wallace’s reported holdings include 668,175.7959 shares of KLA common stock, which at different points include 575,111.680 and later 482,633.980 shares issuable upon vesting of RSUs. The filing shows compensation-driven and tax-related adjustments rather than open-market buying or selling.
KLA CORP executive Mary Beth Wilkinson, EVP, CLO and Secretary, reported an open-market sale of 14,392 shares of common stock at $285.30 per share on July 1, 2026. After this transaction, she directly holds 53,367.295 shares of KLA common stock.
The filing also shows a separate disposition of 10,259.765 shares on June 30, 2026 to cover tax withholding obligations tied to vesting restricted stock units. Footnotes state that 24,651.900 shares from a 2022 performance-based RSU grant vested on that date, and the tax shares were automatically withheld based on the June 29, 2026 closing price.
According to the disclosure, Wilkinson’s reported holdings include 53,297.820 shares issuable upon vesting of RSUs. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on February 2, 2026, indicating the sale was scheduled in advance rather than timed discretionarily.
KLA CORP executive Ahmad A. Khan reported routine equity compensation activity involving company common stock. On June 30, 2026, 61,651.800 shares from performance-based and service-based RSUs vested, and 30,566.963 shares were automatically withheld to cover required tax withholding at a value of $278.39 per share, rather than sold on the open market.
On the same date, Khan also recorded an "other" transaction of 196.1599 shares at $108.33 per share, which footnotes describe as purchased under KLA’s employee stock purchase plan. Following these updates, he directly holds 196,861.7169 shares of KLA common stock, including 155,517.880 shares issuable upon vesting of RSUs.
KLA Corp President and CEO Richard P. Wallace sold 4,512 shares of KLA common stock in an open-market transaction. The shares were sold at an average price of $2,213.37 per share. The trade was effected pursuant to a Rule 10b5-1 trading plan adopted by Wallace on November 19, 2025.
Following this sale, Wallace directly owned 71,383.008 shares of KLA common stock. This total includes 57,511.168 shares issuable upon vesting of restricted stock units, meaning a large portion of his reported holdings remains tied to long-term equity awards.
KLA CORP President and CEO Richard P. Wallace sold 4,512 shares of common stock in an open-market transaction at $1,794 per share on May 12, 2026. The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on November 19, 2025, indicating it was scheduled in advance rather than timed opportunistically.
After this transaction, Wallace directly holds 75,895.008 shares of KLA common stock. This figure includes 57,511.168 shares issuable upon vesting of restricted stock units, so a large portion of his exposure remains tied to equity-based compensation.
KLA CORP senior executive Virendra A. Kirloskar, the SVP & Chief Accounting Officer, reported an open-market sale of common stock. On May 11, 2026, he sold 297 shares of KLA common stock at $1,879.02 per share. After this transaction, he reports owning 1,957.491 shares directly, and a footnote explains this figure includes 1,951.639 shares issuable upon vesting of restricted stock units (RSUs).
KLA CORP director Jeneanne Michelle Hanley reported an open-market sale of company stock. On May 11, 2026, she sold 550 shares of KLA common stock in the open market at a weighted average price of $1,874.706 per share, with individual sale prices ranging from $1,874.64 to $1,875.08.
After this transaction, Hanley directly holds 3,550.732 shares of KLA common stock, which includes 203.732 shares issuable upon vesting of restricted stock units (RSUs). This filing reflects a relatively small net sale compared with her remaining direct holdings and shows no associated option exercises or derivative transactions in this report.
KLA Corp director Robert Calderoni reported a small equity award. On February 5, 2026, he received a grant of restricted stock units for 11.269 shares of KLA common stock at no cost. These RSUs vest on the earliest of February 5, 2027, immediately before the next annual stockholder meeting, or ten days before a change of control of KLA.
After this grant, Calderoni directly beneficially owns 3,700.971 shares of KLA common stock, which includes 267.971 shares issuable upon vesting of RSUs. He also indirectly beneficially owns 11,529.527 shares held by The 2019 Calderoni Family Trust, where he serves as trustee and beneficiary.
KLA Corp executive Bren D. Higgins, EVP & Chief Financial Officer, reported a planned stock sale. On 12/16/2025, he sold 2,254 shares of KLA common stock at $1,237.01 per share in an open market transaction coded as a sale.
The filing states this sale was carried out under a Rule 10b5-1 trading plan adopted on May 5, 2025, which is designed to pre-arrange trades. After this transaction, Higgins beneficially owned 32,154.4 shares of KLA common stock, including 21,418.468 shares issuable upon vesting of restricted stock units.
KLA Corp (KLAC) insider activity: President and CEO Richard P. Wallace reported a sale of 10,803 shares of common stock at $1,203.1 per share on 11/11/2025, executed under a Rule 10b5-1 trading plan adopted on November 1, 2024.
On the same date, he also reported a gift of 804 shares. Following these transactions, Wallace directly beneficially owned 80,407.008 shares, which includes 57,511.168 shares issuable upon vesting of RSUs.
KLA Corp (KLAC) Form 4: Director Tracy A. Embree received an automatic grant of restricted stock units for 203.732 shares of KLA common stock on November 5, 2025 at a price of $0. Following the grant, beneficial ownership reported is 203.732 shares, held directly.
The RSUs vest on the earliest of November 5, 2026, immediately prior to the next annual meeting of stockholders, or ten days prior to a change of control of KLA. This is a routine director equity award and does not reflect an open-market purchase or sale.
KLA Corp (KLAC) reported that a director received an automatic grant of 203.732 restricted stock units on November 5, 2025. The RSUs carry a grant price of $0 and vest on the earliest of November 5, 2026, immediately prior to the next annual meeting of stockholders, or ten days prior to a change of control of KLA.
Following the grant, the director’s beneficial ownership includes 203.732 shares, held directly, which reflects the shares underlying these RSUs.
KLA Corporation (KLAC) reported an insider equity award. Director Robert Calderoni received an automatic grant of 256.702 restricted stock units (RSUs) on November 5, 2025 at a price of $0. The RSUs vest on the earliest of November 5, 2026, immediately prior to the next annual meeting of stockholders, or ten days before a change of control of KLA.
Following the transaction, Calderoni’s beneficial holdings were reported as 3,689.702 shares held directly and 11,529.527 shares held indirectly by The 2019 Calderoni Family Trust. The direct total includes 256.702 shares issuable upon vesting of RSUs.