KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionProShare Advisors LLC
Latest Disclosed Ownership206,269 shares
Latest Disclosed Value $ 303,712,539
ProShare Advisors LLC reports 19.75% decrease in ownership of KLAC / KLA Corporation

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 206,269 shares of KLA Corporation (MX:KLAC) valued at $303,712,539 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 257,027 shares of KLA Corporation. This represents a change in shares of -19.75% during the quarter.

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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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)
2026-04-24 2026-03-31 13F KLA COM NEW 482480100 206,269 -50,758 -19.75 303,713 -2.75 0.4497
2026-02-06 2025-12-31 13F KLA COM NEW 482480100 257,027 65,177 33.97 312,308 50.93 0.5512
2025-11-06 2025-09-30 13F KLA COM NEW 482480100 191,850 -41,189 -17.67 206,929 -0.87 0.4331
2025-08-07 2025-06-30 13F KLA COM NEW 482480100 233,039 9,288 4.15 208,742 37.24 0.4165
2025-05-08 2025-03-31 13F KLA COM NEW 482480100 223,751 16,418 7.92 152,106 16.43 0.3433
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 207,333 28,882 16.18 130,645 -5.46 0.2986
2024-11-14 2024-09-30 13F KLA COM NEW 482480100 178,451 7,080 4.13 138,194 -2.20 0.3387
2024-08-13 2024-06-30 13F KLA COM NEW 482480100 171,371 -12,645 -6.87 141,297 9.92 0.3780
2024-05-08 2024-03-31 13F KLA COM NEW 482480100 184,016 28,897 18.63 128,548 42.56 0.3418
2024-02-14 2023-12-31 13F KLA COM NEW 482480100 155,119 -22,063 -12.45 90,171 10.96 0.2755
2023-11-13 2023-09-30 13F KLA COM NEW 482480100 177,182 21,400 13.74 81,266 7.56 0.2534
2023-08-10 2023-06-30 13F KLA COM NEW 482480100 155,782 -4,657 -2.90 75,557 17.98 0.2191
2023-05-26 2023-03-31 13F/A-1 KLA COM NEW 482480100 160,439 11,503 7.72 64,042 14.05 0.1957
2023-05-12 2023-03-31 13F KLA COM NEW 482480100 160,439 11,503 64,042 0.2037
2023-02-02 2022-12-31 13F KLA COM NEW 482480100 148,936 -13,072 -8.07 56,153 14.53 0.1972
2022-11-07 2022-09-30 13F KLA COM NEW 482480100 162,008 -41,620 -20.44 49,029 -24.54 0.1881
2022-08-01 2022-06-30 13F KLA COM NEW 482480100 203,628 -101,734 -33.32 64,973 -41.88 0.2155
2022-05-10 2022-03-31 13F KLA COM NEW 482480100 305,362 -21,069 -6.45 111,782 -20.38 0.2401
2022-02-08 2021-12-31 13F KLA COM NEW 482480100 326,431 111,605 51.95 140,401 95.38 0.2755
2021-11-12 2021-09-30 13F KLA COM NEW 482480100 214,826 16,909 8.54 71,861 11.99 0.2019
2021-08-13 2021-06-30 13F KLA COM NEW 482480100 197,917 -9,112 -4.40 64,167 -6.19 0.1876
2021-05-14 2021-03-31 13F KLA COM NEW 482480100 207,029 30,635 17.37 68,402 49.77 0.2151
2021-02-09 2020-12-31 13F KLA COM NEW 482480100 176,394 22,786 14.83 45,670 53.46 0.1699
2020-11-13 2020-09-30 13F KLA COM NEW 482480100 153,608 21,179 15.99 29,760 15.55 0.1375
2020-08-03 2020-06-30 13F KLA COM NEW 482480100 132,429 15,340 13.10 25,755 53.03 0.1376
2020-05-15 2020-03-31 13F KLA COM NEW 482480100 117,089 -42,039 -26.42 16,830 -40.64 0.1209
2020-02-12 2019-12-31 13F KLA COM NEW 482480100 159,128 30,979 24.17 28,352 38.76 0.1313
2019-11-12 2019-09-30 13F KLA COM NEW 482480100 128,149 887 0.70 20,433 35.84 0.1144
2019-08-13 2019-06-30 13F KLA-TENCOR COM 482480100 127,262 -4,076 -3.10 15,042 -4.09 0.0899
2019-05-15 2019-03-31 13F KLA-TENCOR COM 482480100 131,338 1,557 1.20 15,683 35.04 0.0938
2019-02-14 2018-12-31 13F KLA-TENCOR COM 482480100 129,781 23,160 21.72 11,614 7.10 0.0813
2018-11-14 2018-09-30 13F KLA-TENCOR COM 482480100 106,621 -12,325 -10.36 10,844 -11.09 0.0736
2018-08-13 2018-06-30 13F KLA-TENCOR COM 482480100 118,946 -15,905 -11.79 12,196 -17.03 0.0817
2018-05-14 2018-03-31 13F KLA-TENCOR COM 482480100 134,851 20,059 17.47 14,700 21.88 0.0958
2018-02-14 2017-12-31 13F KLA-TENCOR COM 482480100 114,792 31,374 37.61 12,061 36.41 0.0837
2017-11-13 2017-09-30 13F KLA-TENCOR COM 482480100 83,418 -5,865 -6.57 8,842 8.23 0.0813
2017-08-11 2017-06-30 13F KLA-TENCOR COM 482480100 89,283 8,912 11.09 8,170 6.92 0.0814
2017-05-12 2017-03-31 13F/A-2 KLA-TENCOR COM 482480100 80,371 -1,878 -2.28 7,641 18.08 0.0799
2017-05-08 2017-03-31 13F/A-1 KLA-TENCOR COM 482480100 80,371 0 7,641 0.0799
2017-04-25 2017-03-31 13F KLA-TENCOR COM 482480100 80,371 7,641
2017-02-13 2016-12-31 13F KLA-TENCOR COM 482480100 82,249 46,732 131.58 6,471 161.35 0.0717
2016-11-10 2016-09-30 13F KLA-TENCOR COM 482480100 35,517 -5,774 -13.98 2,476 -18.15 0.0346
2016-08-12 2016-06-30 13F KLA-TENCOR COM 482480100 41,291 -752 -1.79 3,025 -1.18 0.0390
2016-05-06 2016-03-31 13F KLA-TENCOR COM 482480100 42,043 -50,193 -54.42 3,061 -52.15 0.0421
2016-02-05 2015-12-31 13F KLA-TENCOR COM 482480100 92,236 -419 -0.45 6,397 38.07 0.0775
2015-11-06 2015-09-30 13F KLA-TENCOR COM 482480100 92,655 6,231 7.21 4,633 -4.63 0.0651
2015-08-11 2015-06-30 13F KLA-TENCOR COM 482480100 86,424 -25,245 -22.61 4,858 -25.36 0.0672
2015-05-08 2015-03-31 13F KLA-TENCOR COM 482480100 111,669 111,669 0.00 6,509 0.0767
2015-01-30 2014-12-31 13F KLA-TENCOR COM 482480100 0 -98,103 -100.00 0 -100.00
2014-11-06 2014-09-30 13F KLA-TENCOR COM 482480100 98,103 8,570 9.57 7,729 18.83 0.1025
2014-08-08 2014-06-30 13F KLA-TENCOR COM 482480100 89,533 -3,560 -3.82 6,504 1.06 0.0843
2014-05-07 2014-03-31 13F KLA-TENCOR COM 482480100 93,093 6,613 7.65 6,436 15.44 0.0805
2014-02-04 2013-12-31 13F KLA-TENCOR COM 482480100 86,480 33,158 62.18 5,575 71.80 0.0831
2013-11-07 2013-09-30 13F KLA-TENCOR COM 482480100 53,322 -19,963 -27.24 3,245 -20.54 0.0770
2013-07-25 2013-06-30 13F KLA-TENCOR COM 482480100 73,285 73,285 4,084 0.0802
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.