KLA CORP KLAC
COM NEW · Common Stock · CUSIP 482480100 · ISIN US4824801009
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.1bn this quarter). Holder counts are more reliable. Shares outstanding: 130.6m as of 2026-04-27, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1470.81. Options: 48 managers hold calls ($1.6bn notional), 53 hold puts ($2.6bn).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 1,059 |
| Q4 2022 | 1,129 |
| Q1 2023 | 1,164 |
| Q2 2023 | 1,227 |
| Q3 2023 | 1,281 |
| Q4 2023 | 1,400 |
| Q1 2024 | 1,467 |
| Q2 2024 | 1,535 |
| Q3 2024 | 1,548 |
| Q4 2024 | 1,552 |
| Q1 2025 | 1,567 |
| Q2 2025 | 1,665 |
| Q3 2025 | 1,735 |
| Q4 2025 | 1,910 |
| Q1 2026 | 2,077 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 711 | 673 |
| Q3 2024 | 710 | 693 |
| Q4 2024 | 675 | 742 |
| Q1 2025 | 765 | 676 |
| Q2 2025 | 777 | 751 |
| Q3 2025 | 819 | 716 |
| Q4 2025 | 788 | 821 |
| Q1 2026 | 915 | 928 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $772.8m | $1.1bn | 1.46 |
| Q3 2025 | $1.4bn | $2.0bn | 1.43 |
| Q4 2025 | $1.3bn | $2.6bn | 1.94 |
| Q1 2026 | $1.6bn | $2.6bn | 1.65 |
Biggest buyers
| FMR LLC | Added | +1.9m |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +1.0m |
| Capital Research Global Investors | Added | +784.5k |
| UHLMANN PRICE SECURITIES, LLC | Added | +780.7k |
| Capital World Investors | Added | +434.2k |
| GOLDMAN SACHS GROUP INC | Added | +401.7k |
| JENNISON ASSOCIATES LLC | New | +384.5k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +344.2k |
| Amundi | Added | +296.3k |
| BlackRock, Inc. | Added | +208.9k |
Biggest sellers
| Capital International Investors | Reduced | -2.7m |
| Corient Private Wealth LP | Reduced | -1.3m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -1.0m |
| Dakota Wealth Management | Reduced | -804.7k |
| PRIMECAP MANAGEMENT CO/CA/ | Reduced | -438.3k |
| HSBC HOLDINGS PLC | Reduced | -413.4k |
| BANK OF NOVA SCOTIA | Reduced | -228.2k |
| BANK OF AMERICA CORP /DE/ | Reduced | -188.3k |
| Alecta Tjanstepension Omsesidigt | Reduced | -179.0k |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -178.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $478.7m325.1k shares |
| CITADEL ADVISORS LLC | Added | $243.2m165.2k shares |
| JANE STREET GROUP, LLC | Added | $199.2m135.3k shares |
| IMC-Chicago, LLC | Reduced | $162.6m110.4k shares |
| JPMORGAN CHASE & CO | Added | $51.4m37.2k shares |
| ROYAL BANK OF CANADA | Added | $48.6m33.0k shares |
| Jain Global LLC | Unchanged | $44.2m30.0k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $41.8m28.4k shares |
| Walleye Trading LLC | Reduced | $27.2m18.5k shares |
| Value Aligned Research Advisors, LLC | New | $26.9m18.3k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $716.0m486.3k shares |
| JANE STREET GROUP, LLC | Added | $433.9m294.7k shares |
| ALKEON CAPITAL MANAGEMENT LLC | Reduced | $294.5m200.0k shares |
| IMC-Chicago, LLC | Added | $199.4m135.4k shares |
| CITADEL ADVISORS LLC | Reduced | $198.2m134.6k shares |
| Marex Group Ltd | Unchanged | $73.6m50.0k shares |
| Jain Global LLC | Added | $73.6m50.0k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $69.9m47.5k shares |
| LOGAN CAPITAL MANAGEMENT INC | New | $62.1m42.2k shares |
| GOLDMAN SACHS GROUP INC | Reduced | $46.5m31.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 7.5% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 4 | $19.3m | $19.3m |
| Q3 2024 | 0 | — | 6 | $29.9m | $29.9m |
| Q4 2024 | 0 | — | 1 | $9.5m | $9.5m |
| Q1 2025 | 0 | — | 1 | $5.1m | $5.1m |
| Q2 2025 | 0 | — | 3 | $9.3m | $9.3m |
| Q3 2025 | 0 | — | 6 | $39.9m | $39.9m |
| Q4 2025 | 0 | — | 2 | $15.8m | $15.8m |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.33% of their portfolio | 12.6m $18.5bn | Added +208.9k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.31% of their portfolio | 8.5m $12.5bn | First filing |
| STATE STREET CORP 0.31% of their portfolio | 6.2m $9.1bn | Reduced -65.8k |
| Invesco Ltd. 0.63% of their portfolio | 4.4m $6.5bn | Reduced -125.6k |
| FMR LLC 0.34% of their portfolio | 4.4m $6.5bn | Added +1.9m |
| Capital World Investors 0.82% of their portfolio | 4.1m $6.0bn | Added +434.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.31% of their portfolio | 4.0m $5.9bn | First filing |
| GEODE CAPITAL MANAGEMENT, LLC 0.34% of their portfolio | 3.7m $5.4bn | Added +162.5k |
| Capital International Investors 0.94% of their portfolio | 2.7m $4.0bn | Reduced -2.7m |
| PRIMECAP MANAGEMENT CO/CA/ 2.83% of their portfolio | 2.4m $3.6bn | Reduced -438.3k |
| GOLDMAN SACHS GROUP INC 0.35% of their portfolio | 1.8m $2.7bn | Added +401.7k |
| MORGAN STANLEY 0.16% of their portfolio | 1.8m $2.6bn | Added +39.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.29% of their portfolio | 1.7m $2.5bn | Reduced -1.0m |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.82% of their portfolio | 1.6m $2.4bn | Reduced -98.4k |
| NORTHERN TRUST CORP 0.31% of their portfolio | 1.6m $2.3bn | Reduced -30.4k |
| VAN ECK ASSOCIATES CORP 1.65% of their portfolio | 1.5m $2.2bn | Reduced -60.2k |
| WELLINGTON MANAGEMENT GROUP LLP 0.40% of their portfolio | 1.4m $2.1bn | Added +1.0m |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 1.63% of their portfolio | 1.4m $2.1bn | Reduced -16.5k |
| BANK OF AMERICA CORP /DE/ 0.14% of their portfolio | 1.3m $1.9bn | Reduced -188.3k |
| JANUS HENDERSON GROUP PLC 0.87% of their portfolio | 1.2m $1.8bn | Reduced -111.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.34% of their portfolio | 1.1m $1.6bn | Added +136.9k |
| Amundi 0.44% of their portfolio | 1.1m $1.6bn | Added +296.3k |
| Legal & General Group Plc 0.35% of their portfolio | 1.0m $1.5bn | Reduced -5.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.22% of their portfolio | 987.6k $1.5bn | Added +29.7k |
| Capital Research Global Investors 0.22% of their portfolio | 976.4k $1.4bn | Added +784.5k |
| Bank of New York Mellon Corp 0.24% of their portfolio | 888.4k $1.3bn | Reduced -91.9k |
| AMERIPRISE FINANCIAL INC 0.30% of their portfolio | 886.7k $1.3bn | Reduced -33.3k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.63% of their portfolio | 791.3k $1.2bn | Added +16.8k |
| UHLMANN PRICE SECURITIES, LLC 82.15% of their portfolio | 781.1k $1.2bn | Added +780.7k |
| VANGUARD FIDUCIARY TRUST CO 0.28% of their portfolio | 756.4k $1.1bn | First filing |
| Pictet Asset Management Holding SA 1.12% of their portfolio | 721.9k $1.1bn | Reduced -166.0k |
| DIMENSIONAL FUND ADVISORS LP 0.22% of their portfolio | 716.1k $1.1bn | Added +963 |
| Swedbank AB 0.99% of their portfolio | 637.8k $939.1m | Reduced -125.8k |
| JPMORGAN CHASE & CO 0.06% of their portfolio | 630.2k $871.3m | Added +143.7k |
| California Public Employees Retirement System 0.54% of their portfolio | 594.6k $875.5m | Reduced -13.5k |
| FRANKLIN RESOURCES INC 0.21% of their portfolio | 582.1k $857.0m | Reduced -94.7k |
| ALKEON CAPITAL MANAGEMENT LLC 3.87% of their portfolio | 580.9k $855.3m | Reduced -129.4k |
| FIRST TRUST ADVISORS LP 0.60% of their portfolio | 565.9k $833.2m | Reduced -88.1k |
| BARCLAYS PLC 0.29% of their portfolio | 553.2k $814.6m | Reduced -133.0k |
| UBS Group AG 0.14% of their portfolio | 551.7k $812.3m | Added +13.4k |
| PARNASSUS INVESTMENTS, LLC 2.32% of their portfolio | 538.4k $792.7m | Reduced -85.3k |
| ROYAL BANK OF CANADA 0.15% of their portfolio | 528.5k $778.2m | Reduced -19.7k |
| ACADIAN ASSET MANAGEMENT LLC 0.98% of their portfolio | 468.2k $689.3m | Added +344.2k |
| DEUTSCHE BANK AG\ 0.23% of their portfolio | 465.0k $684.7m | Added +38.9k |
| Grantham, Mayo, Van Otterloo & Co. LLC 1.74% of their portfolio | 461.2k $679.1m | Reduced -47.6k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.52% of their portfolio | 428.6k $631.0m | Added +28.1k |
| ALLIANCEBERNSTEIN L.P. 0.17% of their portfolio | 419.4k $509.6m | Added +167.0k |
| CITIGROUP INC 0.36% of their portfolio | 388.3k $571.7m | Added +10.0k |
| Swiss National Bank 0.33% of their portfolio | 385.6k $567.8m | Added +24.0k |
| JENNISON ASSOCIATES LLC 0.39% of their portfolio | 384.5k $566.1m | New |
| VICTORY CAPITAL MANAGEMENT INC 0.36% of their portfolio | 380.6k $560.3m | Reduced -178.0k |
| TD Asset Management Inc 0.45% of their portfolio | 373.1k $549.3m | Reduced -41.0k |
| Impax Asset Management Group plc 3.73% of their portfolio | 363.8k $535.6m | Added +151.3k |
| HSBC HOLDINGS PLC 0.32% of their portfolio | 363.8k $534.6m | Reduced -413.4k |
| National Pension Service 0.41% of their portfolio | 363.7k $535.5m | Reduced -397 |
| Nuveen, LLC 0.14% of their portfolio | 354.7k $522.3m | Added +20.5k |
| BROWN BROTHERS HARRIMAN & CO 2.76% of their portfolio | 349.9k $515.2m | Reduced -84.0k |
| WELLS FARGO & COMPANY/MN 0.10% of their portfolio | 342.8k $504.7m | Added +2.1k |
| DekaBank Deutsche Girozentrale 0.74% of their portfolio | 317.4k $446.3m | Unchanged |
| Sumitomo Mitsui Trust Group, Inc. 0.30% of their portfolio | 315.9k $465.1m | Reduced -9.7k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.31% of their portfolio | 312.5k $460.1m | Added +18.7k |
| OAKTOP CAPITAL MANAGEMENT II, L.P. 34.14% of their portfolio | 310.7k $457.5m | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.39% of their portfolio | 307.3k $452.5m | Reduced -91.0k |
| Robeco Institutional Asset Management B.V. 0.64% of their portfolio | 303.5k $446.9m | Added +5.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.28% of their portfolio | 293.4k $431.9m | Reduced -145.4k |
| LAZARD ASSET MANAGEMENT LLC 0.71% of their portfolio | 292.5k $430.7m | Added +35.0k |
| Vanguard Global Advisers, LLC 0.23% of their portfolio | 287.8k $423.8m | First filing |
| AMERICAN CENTURY COMPANIES INC 0.21% of their portfolio | 274.2k $403.8m | Reduced -28.3k |
| Polar Capital Holdings Plc 1.74% of their portfolio | 271.3k $399.5m | Reduced -70.9k |
| ENVESTNET ASSET MANAGEMENT INC 0.11% of their portfolio | 268.6k $395.5m | Reduced -9.5k |
| Rafferty Asset Management, LLC 1.55% of their portfolio | 259.2k $381.6m | Reduced -82.6k |
| RHUMBLINE ADVISERS 0.32% of their portfolio | 251.0k $369.6m | Reduced -4.6k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.29% of their portfolio | 228.8k $336.9m | First filing |
| TRUIST FINANCIAL CORP 0.45% of their portfolio | 224.2k $330.1m | Reduced -5.3k |
| RAYMOND JAMES FINANCIAL INC 0.10% of their portfolio | 218.7k $321.5m | Reduced -2.7k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.51% of their portfolio | 211.6k $311.6m | Added +160.5k |
| ProShare Advisors LLC 0.45% of their portfolio | 206.3k $303.7m | Reduced -50.8k |
| Eurizon Capital SGR S.p.A. 0.94% of their portfolio | 206.1k $299.5m | Reduced -5.3k |
| NOMURA ASSET MANAGEMENT CO LTD 0.77% of their portfolio | 203.8k $300.1m | Added +10.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.31% of their portfolio | 200.9k $295.7m | Reduced -5.3k |
| Alecta Tjanstepension Omsesidigt 1.43% of their portfolio | 199.0k $292.8m | Reduced -179.0k |
| 1832 Asset Management L.P. 0.39% of their portfolio | 198.5k $292.2m | Added +93.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.15% of their portfolio | 196.5k $289.3m | Reduced -16.3k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.33% of their portfolio | 195.6k $287.9m | Added +51.9k |
| NATIXIS ADVISORS, LLC 0.38% of their portfolio | 187.7k $276.4m | Added +180 |
| BESSEMER GROUP INC 0.42% of their portfolio | 180.3k $265.4m | Added +1.3k |
| BANK OF MONTREAL /CAN/ 0.11% of their portfolio | 179.5k $264.3m | Reduced -26.7k |
| Local Pensions Partnership Investment Ltd 5.44% of their portfolio | 171.2k $252.0m | Reduced -37.5k |
| JENSEN INVESTMENT MANAGEMENT INC 4.81% of their portfolio | 165.6k $243.9m | Reduced -23.9k |
| Allianz Asset Management GmbH 0.28% of their portfolio | 162.5k $239.3m | Reduced -9.0k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.15% of their portfolio | 161.7k $238.1m | Added +76.3k |
| Winslow Capital Management, LLC 0.92% of their portfolio | 160.8k $236.7m | Added +64.3k |
| VOYA INVESTMENT MANAGEMENT LLC 0.24% of their portfolio | 158.3k $233.1m | Added +33.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.33% of their portfolio | 158.1k $232.7m | Added +200 |
| Assenagon Asset Management S.A. 0.36% of their portfolio | 155.0k $228.3m | Reduced -120.3k |
| NORDEA INVESTMENT MANAGEMENT AB 0.20% of their portfolio | 152.1k $215.0m | Reduced -1.1k |
| Mirae Asset Global Investments Co., Ltd. 0.63% of their portfolio | 150.4k $221.5m | Reduced -2.7k |
| AQR CAPITAL MANAGEMENT LLC 0.10% of their portfolio | 147.1k $210.4m | Added +769 |
| Value Aligned Research Advisors, LLC 2.50% of their portfolio | 143.4k $211.1m | Added +92.6k |
| NATIONAL BANK OF CANADA /FI/ 0.21% of their portfolio | 141.3k $208.0m | Reduced -10.7k |