NASDAQ : KLAC
-$20.61 (-10.8%)
5.02%
1006
change: -1143 | last: 2149997
change: 45 | last: 9522
change: -832 | last: 834221
change: -70 | last: 2911295
change: 1162 | last: 13313000
41200
3.17
change: 140.029 | last: 1.768919.75B
| Filing Date | Reporting Person | Amount Beneficially Owned | % of Class |
|---|---|---|---|
| 2026-04-30 | Vanguard Capital Management | 9.82M | 7.49% |
| 2026-03-27 | The Vanguard Group | - | 0.00% |
| 2023-01-30 | (1) BlackRock, Inc. | 11.08M | 7.80% |
| 2022-02-11 | 95-1411037 | 13.0 | 5.20% |
| 2022-02-10 | PRIMECAP Management Company | 7.52M | 4.99% |
| 2022-02-10 | The Vanguard Group - 23-1945930 | 13.51M | 8.91% |
| 2022-02-10 | The Vanguard Group - 23-1945930 | 13.51M | 8.91% |
| 2022-02-08 | PRIMECAP Management Company | 7.76M | 5.12% |
| 2022-02-01 | (1) BlackRock, Inc. | 11.32M | 7.50% |
| 2021-02-16 | 95-1411037 | 13.0 | 5.80% |
| 2021-02-16 | 95-1411037 | 13.0 | 5.80% |
| 2021-02-12 | PRIMECAP Management Company 95-3868081 | 9.36M | 6.06% |
| 2021-02-10 | The Vanguard Group - 23-1945930 | 18.73M | 12.12% |
| 2021-02-04 | Wellington Management Group LLP | 6.35M | 4.11% |
| 2021-02-04 | Wellington Group Holdings LLP | 6.35M | 4.11% |
| 2021-02-04 | Wellington Investment Advisors Holdings LLP | 6.35M | 4.11% |
| 2021-01-29 | (1) BlackRock, Inc. | 12.12M | 7.80% |
| 2020-02-12 | PRIMECAP Management Company 95-3868081 | 10.29M | 6.52% |
| 2020-02-12 | The Vanguard Group - 23-1945930 | 18.46M | 11.69% |
| 2020-02-12 | The Vanguard Group - 23-1945930 | 18.46M | 11.69% |
| 2020-02-05 | (1) BlackRock, Inc. | 12.59M | 8.00% |
| 2020-01-27 | Wellington Investment Advisors Holdings LLP | 8.26M | 5.23% |
| 2020-01-27 | Wellington Group Holdings LLP | 8.26M | 5.23% |
| 2020-01-27 | Wellington Management Group LLP | 8.26M | 5.23% |
| 2019-02-12 | Wellington Investment Advisors Holdings LLP | 8.66M | 5.66% |
| 2019-02-12 | Wellington Management Group LLP | 8.66M | 5.66% |
| 2019-02-12 | Wellington Group Holdings LLP | 8.66M | 5.66% |
| 2019-02-11 | AT&T Inc. (formerly known as SBC Communications Inc.) | 9.97M | 4.80% |
| 2019-02-08 | PRIMECAP Management Company 95-3868081 | 12.24M | 8.00% |
| 2019-02-06 | (1) BlackRock, Inc. | 11.24M | 7.30% |
| 2018-02-27 | PRIMECAP Management Company 95-3868081 | 12.53M | 8.01% |
| 2018-02-08 | Wellington Group Holdings LLP | 8.98M | 5.73% |
| 2018-02-08 | Wellington Management Group LLP | 8.98M | 5.73% |
| 2018-02-08 | Wellington Group Holdings LLP | 8.98M | 5.73% |
| 2018-02-08 | Wellington Investment Advisors Holdings LLP | 8.98M | 5.73% |
| 2018-02-08 | (1) BlackRock, Inc. | 11.45M | 7.30% |
| 2018-02-08 | Wellington Management Group LLP | 8.98M | 5.73% |
| 2018-02-08 | Wellington Investment Advisors Holdings LLP | 8.98M | 5.73% |
| 2017-11-07 | JPMORGAN CHASE & CO13-2624428 | 6.19M | 3.90% |
| 2017-02-09 | PRIMECAP Management Company 95-3868081 | 14.01M | 8.96% |
| 2017-01-25 | (1) BlackRock, Inc. | 11.14M | 7.10% |
| 2017-01-10 | Lennar Corporation | 82.7M | 25.60% |
| 2016-08-10 | Capital World Investors ** | 1.29M | 0.80% |
| 2016-02-22 | STATE STREET CORPORATION | 6.19M | 4.00% |
| 2016-02-12 | PRIMECAP Management Company 95-3868081 | 12.24M | 7.85% |
| 2016-02-10 | (1) BlackRock, Inc. | 9.4M | 6.00% |
| 2016-01-19 | JPMorgan Chase & Co. | 10.32M | 6.60% |
| 2015-12-10 | Capital Research Global Investors ** | 2.01M | 1.30% |
| 2015-12-07 | JPMorgan Chase & Co. | 12.04M | 7.70% |
| 2015-02-09 | (1) BlackRock, Inc. | 9.68M | 5.90% |
| 2015-01-15 | Stadium Capital Management GP, L.P. | 2.58M | 11.70% |
| 2014-10-09 | Capital World Investors ** | 17.39M | 10.50% |
| 2014-10-09 | Capital World Investors ** | 17.39M | 10.50% |
| 2014-03-07 | PRIMECAP Management Company 95-3868081 | 8.73M | 5.24% |
| 2014-03-07 | CARMEN HOLDING AMES | 594.28K | 36.24% |
| 2014-02-13 | Capital Research Global Investors ** | 13.27M | 8.00% |
| 2014-02-11 | Vornado Realty Trust | 3.01M | 60.20% |
| 2014-01-29 | (1) BlackRock, Inc. | 8.94M | 5.40% |
| 2014-01-28 | JPMorgan Chase & Co. | 15.15M | 9.00% |
| 2013-02-13 | The Growth Fund of America, Inc. | 5M | 3.00% |
| 2013-02-11 | STUART L. PETERSON | 12.62M | 22.89% |
| 2013-01-31 | (1) BlackRock, Inc. | 15.85M | 9.52% |
| 2012-06-08 | Capital World Investors ** | 7.05M | 4.20% |
| 2012-05-10 | FMR LLC | 5.99M | 3.58% |
| 2012-05-10 | Edward C. Johnson 3d | 5.99M | 3.58% |
| 2012-02-14 | Edward C. Johnson 3d | 14.6M | 8.76% |
| 2012-02-14 | FMR LLC | 14.6M | 8.76% |
| 2012-02-13 | (1) BlackRock, Inc. | 10.75M | 6.45% |
| 2012-02-10 | Capital World Investors ** | 17.28M | 10.40% |
| 2012-02-09 | THE VANGUARD GROUP, INC. | 9.85M | 5.90% |
| 2011-02-14 | The Growth Fund of America, Inc. | 10.94M | 6.50% |
| 2011-02-07 | (1) BlackRock, Inc. | 8.37M | 5.01% |
| 2010-11-10 | FMR LLC | 13.49M | 8.08% |
| 2010-10-08 | Capital World Investors ** | 17.64M | 10.60% |
| 2010-08-10 | FMR LLC | 11.58M | 6.81% |
| 2010-08-10 | Edward C. Johnson 3d | 11.58M | 6.81% |
| 2010-02-16 | EIN #75-3019302 | 12.6M | 7.40% |
| 2010-02-16 | Edward C. Johnson 3d | 22.21M | 12.99% |
| 2010-02-16 | FMR LLC | 22.21M | 12.99% |
| 2010-01-29 | BlackRock for purposes of Schedule 13G filings. | 9.22M | 5.40% |
| 2009-08-10 | Edward C. Johnson 3d | 17.28M | 10.17% |
| 2009-08-10 | FMR LLC | 17.28M | 10.17% |
| 2009-02-17 | EIN #75-3019302 | 9.59M | 5.70% |
| 2008-02-14 | EIN #75-3019302 | 14.38M | 8.00% |
| 2007-08-10 | FMR Corp. | 2.56M | 1.34% |
| 2007-08-10 | Edward C. Johnson 3d | 2.56M | 1.34% |
| 2007-02-14 | Edward C. Johnson 3d | 14.12M | 7.10% |
| 2007-02-14 | FMR Corp. | 14.12M | 7.10% |
| 2007-01-18 | 04-2564110 | - | 30.60% |
| 2006-03-06 | 04-2564110 | - | 27.90% |
| 2006-02-14 | FMR Corp. | 20.99M | 10.63% |
| 2006-02-14 | Edward C. Johnson 3d | 20.99M | 10.63% |
| 2005-07-08 | 95-1411037 | 19.94M | 10.10% |
| 2005-07-08 | 52-0792143 | 10.26M | 5.20% |
| 2005-07-08 | 52-0792143 | 10.26M | 5.20% |
| 2005-07-08 | 95-1411037 | 19.94M | 10.10% |
| 2005-02-14 | FMR Corp. | 23.67M | 12.11% |
| 2005-02-14 | Edward C. Johnson 3d | 23.67M | 12.11% |
| 2005-02-14 | Abigail P. Johnson | 23.67M | 12.11% |
| 2004-08-10 | Abigail P. Johnson | 21.67M | 11.03% |
| 2004-08-10 | Edward C. Johnson 3d | 21.67M | 11.03% |
| 2004-08-10 | FMR Corp. | 21.67M | 11.03% |
| 2004-02-17 | FMR Corp. | 11.72M | 6.02% |
| 2004-02-17 | Edward C. Johnson 3d | 11.72M | 6.02% |
| 2004-02-17 | Abigail P. Johnson | 11.72M | 6.02% |
| 2003-02-13 | Abigail P. Johnson | 18.5M | 9.80% |
| 2003-02-13 | Edward C. Johnson 3d | 18.5M | 9.80% |
| 2003-02-13 | FMR Corp. | 18.5M | 9.80% |
| 2002-02-14 | Edward C. Johnson 3d | 14.15M | 7.64% |
| 2002-02-14 | FMR Corp. | 14.15M | 7.64% |
| 2002-02-14 | Abigail P. Johnson | 14.15M | 7.64% |
| 2002-02-06 | 52-0556948 | 1.75M | 0.90% |
| 2001-02-14 | Abigail P. Johnson | 16.56M | 8.90% |
| 2001-02-14 | Edward C. Johnson 3d | 16.56M | 8.90% |
| 2001-02-14 | FMR Corp. | 16.56M | 8.90% |
| 2001-02-08 | 52-0556948 | 14.76M | 7.90% |
| 2000-09-11 | Abigail P. Johnson | 21.96M | 11.81% |
| 2000-09-11 | Edward C. Johnson 3d | 21.96M | 11.81% |
| 2000-09-11 | FMR Corp. | 21.96M | 11.81% |
| 2000-02-10 | Delaware limited liability company. | 4.09M | 4.55% |
| 1999-09-10 | FMR Corp. | 2.81M | 3.19% |
| 1999-09-10 | Edward C. Johnson 3d | 2.81M | 3.19% |
| 1999-09-10 | Abigail P. Johnson | 2.81M | 3.19% |
| 1999-05-10 | Edward C. Johnson 3d | 7.5M | 8.54% |
| 1999-05-10 | FMR Corp. | 7.5M | 8.54% |
| 1999-05-10 | Abigail P. Johnson | 7.5M | 8.54% |
| 1999-02-12 | Abigail P. Johnson | 13.1M | 14.99% |
| 1999-02-12 | Edward C. Johnson 3d | 13.1M | 14.99% |
| 1999-02-12 | FMR Corp. | 13.1M | 14.99% |
| 1999-02-11 | 13-5521910 | 1.75M | 2.01% |
| 1999-02-11 | Delaware limited liability company. | 6.84M | 7.83% |
| 1998-10-13 | Edward C. Johnson 3d | 11.13M | 12.81% |
| 1998-10-13 | FMR Corp. | 11.13M | 12.81% |
| 1998-10-13 | Abigail P. Johnson | 11.13M | 12.81% |
| 1998-02-12 | 13-5521910 | 6.41M | 7.58% |
| 1998-02-12 | RS Identification #13-2631108 | 5.49M | 6.48% |
| 1998-02-10 | Abigail P. Johnson | 6.35M | 7.50% |
| 1998-02-10 | FMR Corp. | 6.35M | 7.50% |
| 1998-02-10 | Edward C. Johnson 3d | 6.35M | 7.50% |
| 1997-02-11 | Edward C. Johnson 3d | 2.6M | 5.08% |
| 1997-02-11 | Abigail P. Johnson | 2.6M | 5.08% |
| 1997-02-11 | 04-2507163) | 2.6M | 5.08% |
| 1997-02-03 | Identification #13-2631108 | 5.13M | 10.06% |
| 1996-12-10 | Identification #13-2631108 | 5.08M | 10.04% |
| 1996-12-10 | Identification #13-2631108 | 5.08M | 9.99% |
| 1996-12-10 | Identification #13-2631108 | 5.15M | 10.13% |
| 1996-02-12 | Company, as Investment Advisers for various fiduciary accounts | 3.31M | 6.56% |
| 1995-12-08 | 04-2507163) | 1.98M | 3.30% |
| 1995-12-08 | ###-##-####) | 1.98M | 3.30% |
| 1995-09-08 | ###-##-####) | 2.5M | 8.33% |
| 1995-09-08 | 04-2507163) | 2.5M | 8.33% |
| 1995-04-06 | 04-2507163) | 3.24M | 13.95% |
| 1995-04-06 | ###-##-####) | 3.24M | 13.95% |
| 1995-02-09 | 04-2507163) | 1.96M | 8.48% |
| 1995-02-09 | Investors Research Corporation - 44-0640487 | 1.23M | 5.30% |
| 1995-02-09 | ###-##-####) | 1.96M | 8.48% |
| 1995-02-09 | Twentieth Century Investors, Inc. - 44-6006315 | 1.23M | 5.30% |
| 1995-02-09 | Twentieth Century Companies, Inc. - 43-1325032 | 1.23M | 5.30% |
| 1995-02-09 | James E. Stowers, Jr. - ###-##-#### | 1.23M | 5.30% |
| 1994-05-06 | ###-##-####) | 2.58M | 11.90% |
| 1994-05-06 | 04-2507163) | 2.58M | 11.90% |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-06-30 | $301.71 | 1.31B | $395.7B | $1.65B | $5.89B | $399.94B |
| 2025-06-30 | $89.57 | 1.33B | $119.15B | $2.08B | $6.09B | $123.16B |
| 2024-06-30 | $82.78 | 1.35B | $112.04B | $1.98B | $6.82B | $116.88B |
| 2023-06-30 | $48.50 | 1.39B | $67.65B | $1.93B | $6.06B | $71.78B |
| 2022-06-30 | $31.91 | 1.5B | $48.02B | $1.58B | $6.77B | $53.21B |
| 2021-06-30 | $32.42 | 1.54B | $49.95B | $1.43B | $3.55B | $52.07B |
| 2020-06-30 | $19.45 | 1.57B | $30.5B | $1.23B | $3.57B | $32.83B |
| 2019-06-30 | $12.17 | 1.56B | $18.99B | $1.02B | $3.42B | $21.4B |
| 2018-06-30 | $10.25 | 1.56B | $16.03B | $1.4B | $2.24B | $16.86B |
| 2017-06-30 | $9.15 | 1.56B | $14.32B | $1.15B | $2.93B | $16.09B |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-06-30 | $301.71 | 1.31B | $395.7B | $1.65B | $5.89B | $399.94B |
| 2026-03-31 | $147.24 | 1.31B | $192.75B | $1.79B | $6.15B | $197.11B |
| 2025-12-31 | $121.51 | 1.31B | $159.52B | $2.45B | $6.28B | $163.35B |
| 2025-09-30 | $107.86 | 1.32B | $142.11B | $1.95B | $6.09B | $146.26B |
| 2025-06-30 | $89.57 | 1.32B | $118.26B | $2.08B | $6.09B | $122.27B |
| 2025-03-31 | $67.98 | 1.33B | $90.15B | $1.86B | $6.09B | $94.38B |
| 2024-12-31 | $63.01 | 1.33B | $84.01B | $1.84B | $6.07B | $88.24B |
| 2024-09-30 | $77.44 | 1.34B | $103.87B | $1.98B | $6.83B | $108.72B |
| 2024-06-30 | $82.78 | 1.34B | $111.31B | $1.98B | $6.82B | $116.15B |
| 2024-03-31 | $71.09 | 1.35B | $95.94B | $1.85B | $6.82B | $100.91B |
| 2023-12-31 | $58.13 | 1.36B | $78.79B | $1.67B | $6.08B | $83.21B |
| 2023-09-30 | $45.87 | 1.36B | $62.57B | $1.71B | $6.07B | $66.93B |