KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionGoldman Sachs Group Inc
Latest Disclosed Ownership1,818,032 shares
Latest Disclosed Value $ 2,676,889,144
Goldman Sachs Group Inc ownership in KLAC / KLA Corporation

On May 15, 2026 - Goldman Sachs Group Inc filed a 13F-HR form disclosing ownership of 1,818,032 shares of KLA Corporation (MX:KLAC) valued at $2,676,889,144 USD as of March 31, 2026.

Goldman Sachs Group Inc has a history of taking positions in derivatives of the underlying security (KLAC) in the form of stock options. The firm currently holds call options representing 6,200 of underlying shares valued at $9,128,942 USD and put options representing 31,600 of underlying shares valued at $46,528,156 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:KLAC / KLA Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F KLA CMN 482480100 1,818,032 402,969 28.48 2,676,889 55.69 0.0719
2026-02-10 2025-12-31 13F KLA CMN 482480100 1,415,063 -546,474 -27.86 1,719,415 -18.73 0.2120
2025-11-14 2025-09-30 13F KLA CMN 482480100 1,961,537 -138,026 -6.57 2,115,714 12.50 0.2588
2025-08-14 2025-06-30 13F KLA CMN 482480100 2,099,563 269,449 14.72 1,880,663 51.17 0.2555
2025-06-27 2025-03-31 13F/A-2 KLA CMN 482480100 1,830,114 381,934 26.37 1,244,112 36.34 0.2014
2025-05-16 2025-03-31 13F/A-1 KLA CMN 482480100 1,830,114 381,934 1,244,112 0.0518
2025-05-09 2025-03-31 13F KLA CMN 482480100 1,852,814 404,634 1,259,543 0.0380
2025-02-11 2024-12-31 13F KLA CMN 482480100 1,448,180 -317,618 -17.99 912,527 -33.27 0.1438
2024-11-14 2024-09-30 13F KLA CMN 482480100 1,765,798 -503,529 -22.19 1,367,452 -26.92 0.2202
2024-08-13 2024-06-30 13F KLA CMN 482480100 2,269,327 384,140 20.38 1,871,082 42.08 0.3164
2024-05-15 2024-03-31 13F KLA CMN 482480100 1,885,187 -277,139 -12.82 1,316,935 4.77 0.2334
2024-05-14 2023-12-31 13F/A-2 KLA CMN 482480100 2,162,326 -462,787 -17.63 1,256,960 4.40 0.2317
2024-03-01 2023-12-31 13F/A-1 KLA CMN 482480100 2,162,326 -462,787 1,256,960 0.2256
2024-02-13 2023-12-31 13F KLA CMN 482480100 2,162,326 -462,787 1,256,960 0.0595
2024-05-15 2023-09-30 13F/A-1 KLA CMN 482480100 2,625,113 400,896 18.02 1,204,035 11.61 0.2561
2023-11-14 2023-09-30 13F KLA CMN 482480100 2,625,113 400,896 1,204,035 0.2419
2024-05-14 2023-06-30 13F/A-1 KLA CMN 482480100 2,224,217 -521,950 -19.01 1,078,790 -1.59 0.2313
2023-08-15 2023-06-30 13F KLA CMN 482480100 2,224,217 -521,950 1,078,790 0.2173
2024-05-14 2023-03-31 13F/A-1 KLA CMN 482480100 2,746,167 199,715 7.84 1,096,187 14.18 0.2518
2023-05-11 2023-03-31 13F KLA CMN 482480100 2,746,167 199,715 1,096,187 0.2340
2024-05-14 2022-12-31 13F/A-1 KLA CMN 482480100 2,546,452 10,182 0.40 960,089 125,074.45 0.2354
2023-02-13 2022-12-31 13F KLA CMN 482480100 2,546,452 10,182 960,089 0.2149
2024-05-14 2022-09-30 13F/A-1 KLA CMN 482480100 2,536,270 -81,959 -3.13 768 -8.14 0.1939
2022-11-14 2022-09-30 13F KLA CMN 482480100 2,536,270 -81,959 767,551 0.1774
2024-05-14 2022-06-30 13F/A-2 KLA CMN 482480100 2,618,229 543,345 26.19 835 -99.89 0.2087
2022-08-18 2022-06-30 13F/A-1 KLA CMN 482480100 2,618,229 543,345 835,425 0.1888
2022-08-15 2022-06-30 13F KLA CMN 482480100 2,618,229 543,345 835,425 0.1884
2022-05-16 2022-03-31 13F KLA CMN 482480100 2,074,884 393,420 23.40 759,532 5.02 0.1595
2022-02-17 2021-12-31 13F/A-1 KLA CMN 482480100 1,681,464 83,663 5.24 723,214 35.31 0.1436
2022-02-14 2021-12-31 13F KLA CMN 482480100 1,681,464 83,663 723,214 0.1429
2022-01-20 2021-09-30 13F/A-1 KLA CMN 482480100 1,597,801 59,592 3.87 534,480 7.17 0.1134
2021-11-10 2021-09-30 13F KLA CMN 482480100 1,597,801 59,592 534,480 0.0330
2021-08-13 2021-06-30 13F KLA CMN 482480100 1,538,209 348,634 29.31 498,703 26.89 0.1117
2021-05-17 2021-03-31 13F KLA CMN 482480100 1,189,575 391,200 49.00 393,034 90.14 0.0991
2021-02-12 2020-12-31 13F KLA CMN 482480100 798,375 53,556 7.19 206,707 43.25 0.0532
2020-11-13 2020-09-30 13F KLA CMN 482480100 744,819 35,383 4.99 144,301 4.59 0.0410
2020-08-12 2020-06-30 13F KLA CMN 482480100 709,436 38,889 5.80 137,971 43.15 0.0419
2020-05-15 2020-03-31 13F KLA CMN 482480100 670,547 -188,150 -21.91 96,384 -37.00 0.0340
2020-02-14 2019-12-31 13F KLA CMN 482480100 858,697 -133,271 -13.44 152,994 -3.27 0.0390
2019-11-14 2019-09-30 13F KLA CMN 482480100 991,968 154,950 18.51 158,170 59.87 0.0457
2019-08-14 2019-06-30 13F KLA-TENCOR CMN 482480100 837,018 -23,591 -2.74 98,935 -3.73 0.0285
2019-05-15 2019-03-31 13F KLA-TENCOR CMN 482480100 860,609 -434,879 -33.57 102,766 -11.36 0.0310
2019-02-14 2018-12-31 13F KLA-TENCOR CMN 482480100 1,295,488 -359,044 -21.70 115,933 -31.11 0.0370
2018-11-14 2018-09-30 13F KLA-TENCOR CMN 482480100 1,654,532 -170,853 -9.36 168,283 -10.08 0.0435
2018-08-14 2018-06-30 13F KLA-TENCOR CMN 482480100 1,825,385 302,211 19.84 187,157 12.72 0.0506
2018-05-15 2018-03-31 13F KLA-TENCOR CMN 482480100 1,523,174 513,022 50.79 166,041 56.44 0.0425
2018-02-14 2017-12-31 13F KLA-TENCOR CMN 482480100 1,010,152 49,236 5.12 106,137 4.20 0.0254
2017-11-14 2017-09-30 13F KLA-TENCOR CMN 482480100 960,916 139,222 16.94 101,857 35.46 0.0249
2017-08-14 2017-06-30 13F KLA-TENCOR CMN 482480100 821,694 137,733 20.14 75,193 15.64 0.0195
2017-05-18 2017-03-31 13F/A-1 KLA-TENCOR CMN 482480100 683,961 -719,545 -51.27 65,025 -41.11 0.0176
2017-05-15 2017-03-31 13F KLA-TENCOR CMN 482480100 683,961 -719,545 65,025
2017-02-14 2016-12-31 13F KLA-TENCOR CMN 482480100 1,403,506 -986,110 -41.27 110,427 -33.71 0.0312
2016-11-14 2016-09-30 13F KLA-TENCOR CMN 482480100 2,389,616 -285,046 -10.66 166,580 -14.97 0.0504
2016-08-15 2016-06-30 13F KLA-TENCOR CMN 482480100 2,674,662 812,471 43.63 195,918 44.50 0.0640
2016-05-13 2016-03-31 13F KLA-TENCOR CMN 482480100 1,862,191 1,137,580 156.99 135,586 169.82 0.0446
2016-02-16 2015-12-31 13F KLA-TENCOR CMN 482480100 724,611 221,945 44.15 50,251 99.94 0.0158
2015-11-13 2015-09-30 13F KLA-TENCOR CMN 482480100 502,666 -77,057 -13.29 25,133 -22.87 0.0085
2015-08-14 2015-06-30 13F KLA-TENCOR CMN 482480100 579,723 -253,190 -30.40 32,586 -32.88 0.0101
2015-05-15 2015-03-31 13F KLA-TENCOR CMN 482480100 832,913 297,501 55.56 48,550 28.95 0.0156
2015-02-13 2014-12-31 13F KLA-TENCOR CMN 482480100 535,412 56,266 11.74 37,650 -0.26 0.0119
2014-11-14 2014-09-30 13F KLA-TENCOR CMN 482480100 479,146 -85,350 -15.12 37,747 -7.95 0.0120
2014-08-14 2014-06-30 13F KLA-TENCOR CMN 482480100 564,496 74,268 15.15 41,005 20.98 0.0128
2014-05-15 2014-03-31 13F KLA-TENCOR CMN 482480100 490,228 -72,669 -12.91 33,894 -6.59 0.0111
2014-02-14 2013-12-31 13F KLA-TENCOR CMN 482480100 562,897 -1,042,404 -64.94 36,284 -62.86 0.0119
2013-11-14 2013-09-30 13F KLA-TENCOR CMN 482480100 1,605,301 -779,031 -32.67 97,683 -26.49 0.0361
2013-08-14 2013-06-30 13F KLA-TENCOR CMN 482480100 2,384,332 846,656 55.06 132,879 80.94 0.0513
2013-06-14 2012-12-31 13F/A-1 KLA-TENCOR CMN 482480100 1,537,676 157,204 11.39 73,439 11.52 0.0305
2013-06-14 2012-09-30 13F/A-2 KLA-TENCOR CMN 482480100 1,380,472 -736,837 -34.80 65,855 -36.85 0.0263
2013-06-14 2012-06-30 13F/A-2 KLA-TENCOR CMN 482480100 2,117,309 1,784,432 536.06 104,277 475.64 0.0464
2013-06-14 2012-03-31 13F/A-1 KLA-TENCOR CMN 482480100 332,877 332,877 18,115 0.0085
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F KLA CMN Call 6,200 -61.01 9,129 -52.75 n/a n/a n/a
2026-02-10 2025-12-31 13F KLA CMN Call 15,900 -64.35 19,320 -59.84 n/a n/a n/a
2025-11-14 2025-09-30 13F KLA CMN Call 44,600 774.51 48,106 953.09 n/a n/a n/a
2025-08-14 2025-06-30 13F KLA CMN Call 5,100 -71.51 4,568 -62.46 n/a n/a n/a
2025-06-27 2025-03-31 13F/A KLA CMN Call 17,900 12,168 n/a n/a n/a
2025-05-16 2025-03-31 13F/A KLA CMN Call 17,900 12,168 n/a n/a n/a
2024-05-14 2023-03-31 13F/A KLA CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-11 2023-03-31 13F KLA CMN Call 0 0 n/a n/a n/a
2024-05-14 2022-12-31 13F/A KLA CMN Call 421,600 2,380.00 158,956 3,179,000.00 n/a n/a n/a
2023-02-13 2022-12-31 13F KLA CMN Call 421,600 158,956 n/a n/a n/a
2024-05-14 2022-09-30 13F/A KLA CMN Call 17,000 5 n/a n/a n/a
2022-11-14 2022-09-30 13F KLA CMN Call 17,000 5,145 n/a n/a n/a
2022-05-16 2022-03-31 13F KLA CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-17 2021-12-31 13F/A KLA CMN Call 8,000 0.00 3,441 28.59 n/a n/a n/a
2022-02-14 2021-12-31 13F KLA CMN Call 8,000 3,441 n/a n/a n/a
2022-01-20 2021-09-30 13F/A KLA CMN Call 8,000 0.00 2,676 3.16 n/a n/a n/a
2021-11-10 2021-09-30 13F KLA CMN Call 8,000 2,676 n/a n/a n/a
2021-08-13 2021-06-30 13F KLA CMN Call 8,000 2,594 n/a n/a n/a
2020-05-15 2020-03-31 13F KLA CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F KLA CMN Call 13,100 -33.84 2,334 -26.07 n/a n/a n/a
2019-11-14 2019-09-30 13F KLA CMN Call 19,800 51.15 3,157 35.26 n/a n/a n/a
2019-05-15 2019-03-31 13F KLA-TENCOR CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F KLA-TENCOR CMN Call 48,900 0.00 4,376 -12.02 n/a n/a n/a
2018-11-14 2018-09-30 13F KLA-TENCOR CMN Call 48,900 0.00 4,974 13.67 n/a n/a n/a
2017-05-18 2017-03-31 13F/A KLA-TENCOR CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F KLA-TENCOR CMN Call 3,500 -49.28 275 -42.83 n/a n/a n/a
2016-11-14 2016-09-30 13F KLA-TENCOR CMN Call 6,900 -38.94 481 -41.91 n/a n/a n/a
2016-08-15 2016-06-30 13F KLA-TENCOR CMN Call 11,300 0.00 828 0.61 n/a n/a n/a
2016-05-13 2016-03-31 13F KLA-TENCOR CMN Call 11,300 -77.84 823 -76.73 n/a n/a n/a
2016-02-16 2015-12-31 13F KLA-TENCOR CMN Call 51,000 -37.88 3,537 -13.84 n/a n/a n/a
2015-11-13 2015-09-30 13F KLA-TENCOR CMN Call 82,100 -26.57 4,105 -34.68 n/a n/a n/a
2015-08-14 2015-06-30 13F KLA-TENCOR CMN Call 111,800 -9.03 6,284 -12.28 n/a n/a n/a
2015-05-15 2015-03-31 13F KLA-TENCOR CMN Call 122,900 -8.96 7,164 -24.53 n/a n/a n/a
2015-02-13 2014-12-31 13F KLA-TENCOR CMN Call 135,000 23.63 9,493 10.35 n/a n/a n/a
2014-11-14 2014-09-30 13F KLA-TENCOR CMN Call 109,200 -39.13 8,603 -33.99 n/a n/a n/a
2014-08-14 2014-06-30 13F KLA-TENCOR CMN Call 179,400 -0.39 13,032 4.66 n/a n/a n/a
2014-05-15 2014-03-31 13F KLA-TENCOR CMN Call 180,100 -59.33 12,452 -56.37 n/a n/a n/a
2014-02-14 2013-12-31 13F KLA-TENCOR CMN Call 442,800 13.57 28,543 20.31 n/a n/a n/a
2013-11-14 2013-09-30 13F KLA-TENCOR CMN Call 389,900 69.89 23,725 85.50 n/a n/a n/a
2013-08-14 2013-06-30 13F KLA-TENCOR CMN Call 229,500 -83.90 12,790 -81.21 n/a n/a n/a
2013-06-14 2012-12-31 13F/A KLA-TENCOR CMN Call 1,425,200 2.29 68,068 2.41 n/a n/a n/a
2013-06-14 2012-09-30 13F/A KLA-TENCOR CMN Call 1,393,300 85.65 66,467 79.83 n/a n/a n/a
2013-06-14 2012-06-30 13F/A KLA-TENCOR CMN Call 750,500 -11.06 36,962 -19.51 n/a n/a n/a
2013-06-14 2012-03-31 13F/A KLA-TENCOR CMN Call 843,800 45,920 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F KLA CMN Put 31,600 -49.60 46,528 -38.93 n/a n/a n/a
2026-02-10 2025-12-31 13F KLA CMN Put 62,700 -63.69 76,186 -59.10 n/a n/a n/a
2025-11-14 2025-09-30 13F KLA CMN Put 172,700 396.26 186,274 497.59 n/a n/a n/a
2025-08-14 2025-06-30 13F KLA CMN Put 34,800 625.00 31,172 855.29 n/a n/a n/a
2025-06-27 2025-03-31 13F/A KLA CMN Put 4,800 3,263 n/a n/a n/a
2025-05-16 2025-03-31 13F/A KLA CMN Put 4,800 3,263 n/a n/a n/a
2024-05-14 2023-06-30 13F/A KLA CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-15 2023-06-30 13F KLA CMN Put 0 0 n/a n/a n/a
2024-05-14 2023-03-31 13F/A KLA CMN Put 5,100 2,036 n/a n/a n/a
2023-05-11 2023-03-31 13F KLA CMN Put 5,100 2,036 n/a n/a n/a
2020-05-15 2020-03-31 13F KLA CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F KLA CMN Put 2,400 -67.57 428 -63.73 n/a n/a n/a
2019-11-14 2019-09-30 13F KLA CMN Put 7,400 208.33 1,180 175.70 n/a n/a n/a
2018-11-14 2018-09-30 13F KLA-TENCOR CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F KLA-TENCOR CMN Put 90,000 9,228 n/a n/a n/a
2017-11-14 2017-09-30 13F KLA-TENCOR CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-08-14 2017-06-30 13F KLA-TENCOR CMN Put 84,000 7,687 n/a n/a n/a
2017-05-18 2017-03-31 13F/A KLA-TENCOR CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F KLA-TENCOR CMN Put 12,700 -14.77 999 -3.85 n/a n/a n/a
2016-11-14 2016-09-30 13F KLA-TENCOR CMN Put 14,900 -46.98 1,039 -49.51 n/a n/a n/a
2016-08-15 2016-06-30 13F KLA-TENCOR CMN Put 28,100 64.33 2,058 65.30 n/a n/a n/a
2016-05-13 2016-03-31 13F KLA-TENCOR CMN Put 17,100 -67.18 1,245 -65.54 n/a n/a n/a
2016-02-16 2015-12-31 13F KLA-TENCOR CMN Put 52,100 -43.86 3,613 -22.13 n/a n/a n/a
2015-11-13 2015-09-30 13F KLA-TENCOR CMN Put 92,800 45.23 4,640 29.18 n/a n/a n/a
2015-08-14 2015-06-30 13F KLA-TENCOR CMN Put 63,900 -50.04 3,592 -51.82 n/a n/a n/a
2015-05-15 2015-03-31 13F KLA-TENCOR CMN Put 127,900 19.64 7,455 -0.82 n/a n/a n/a
2015-02-13 2014-12-31 13F KLA-TENCOR CMN Put 106,900 -22.87 7,517 -31.16 n/a n/a n/a
2014-11-14 2014-09-30 13F KLA-TENCOR CMN Put 138,600 -1.07 10,919 7.29 n/a n/a n/a
2014-08-14 2014-06-30 13F KLA-TENCOR CMN Put 140,100 51.79 10,177 59.46 n/a n/a n/a
2014-05-15 2014-03-31 13F KLA-TENCOR CMN Put 92,300 -72.58 6,382 -70.59 n/a n/a n/a
2014-02-14 2013-12-31 13F KLA-TENCOR CMN Put 336,600 121.45 21,697 134.59 n/a n/a n/a
2013-11-14 2013-09-30 13F KLA-TENCOR CMN Put 152,000 -38.09 9,249 -32.40 n/a n/a n/a
2013-08-14 2013-06-30 13F KLA-TENCOR CMN Put 245,500 -18.36 13,682 -4.73 n/a n/a n/a
2013-06-14 2012-12-31 13F/A KLA-TENCOR CMN Put 300,700 -22.90 14,361 -22.81 n/a n/a n/a
2013-06-14 2012-09-30 13F/A KLA-TENCOR CMN Put 390,000 79.72 18,605 74.09 n/a n/a n/a
2013-06-14 2012-06-30 13F/A KLA-TENCOR CMN Put 217,000 6.74 10,687 -3.41 n/a n/a n/a
2013-06-14 2012-03-31 13F/A KLA-TENCOR CMN Put 203,300 11,064 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.