KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionNational Pension Service
Latest Disclosed Ownership363,701 shares
Latest Disclosed Value $ 535,516,989
National Pension Service reports 0.11% decrease in ownership of KLAC / KLA Corporation

On May 12, 2026 - National Pension Service filed a 13F-HR form disclosing ownership of 363,701 shares of KLA Corporation (MX:KLAC) valued at $535,516,989 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 364,098 shares of KLA Corporation. This represents a change in shares of -0.11% 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)
2026-05-12 2026-03-31 13F KLA COM NEW 482480100 363,701 -397 -0.11 535,517 21.05 0.4067
2026-02-10 2025-12-31 13F KLA KLA CORP 482480100 364,098 -3,811 -1.04 442,408 11.49 0.3275
2025-11-04 2025-09-30 13F KLA COM NEW 482480100 367,909 9,117 2.54 396,827 23.47 0.3082
2025-08-08 2025-06-30 13F KLA COM NEW 482480100 358,792 49,966 16.18 321,384 53.08 0.2775
2025-05-13 2025-03-31 13F KLA COM NEW 482480100 308,826 14,250 4.84 209,940 13.10 0.2018
2025-02-05 2024-12-31 13F KLA COM NEW 482480100 294,576 -2,070 -0.70 185,618 -19.20 0.1757
2024-10-30 2024-09-30 13F KLACORP COMNEW 482480100 296,646 36,039 13.83 229,726 6.91 0.2215
2024-08-13 2024-06-30 13F KLA COM NEW 482480100 260,607 111 0.04 214,873 18.08 0.2469
2024-05-14 2024-03-31 13F KLA COM NEW 482480100 260,496 1,667 0.64 181,975 20.95 0.2184
2024-02-07 2023-12-31 13F KLA COM NEW 482480100 258,829 5,457 2.15 150,457 33.39 0.2095
2023-11-15 2023-09-30 13F KLA COM NEW 482480100 253,372 2,941 1.17 112,791 -5.62 0.1805
2023-08-16 2023-06-30 13F KLA COM NEW 482480100 250,431 5,831 2.38 119,513 23.38 0.1928
2023-05-12 2023-03-31 13F KLA COM NEW 482480100 244,600 -9,316 -3.67 96,869 1.19 0.1764
2023-02-24 2022-12-31 13F/A-1 KLA COM NEW 482480100 253,916 -5,605 -2.16 95,734 18.72 0.1883
2023-02-21 2022-12-31 13F KLA COM NEW 482480100 253,916 -5,605 96 0.1883
2023-02-24 2022-09-30 13F/A-1 KLA COM NEW 482480100 259,521 1,709 0.66 80,636 -1.98 0.1683
2022-11-18 2022-09-30 13F KLA COM NEW 482480100 259,521 1,709 80,636 0.1683
2022-08-17 2022-06-30 13F KLA COM NEW 482480100 257,812 19,532 8.20 82,263 -5.69 0.1696
2022-05-13 2022-03-31 13F KLA COM NEW 482480100 238,280 -17,150 -6.71 87,225 -20.61 0.1592
2022-02-15 2021-12-31 13F KLA COM NEW 482480100 255,430 -8,385 -3.18 109,863 24.49 0.1917
2021-11-18 2021-09-30 13F KLA COM NEW 482480100 263,815 4,731 1.83 88,249 5.06 0.1680
2021-08-17 2021-06-30 13F KLA COM NEW 482480100 259,084 4,086 1.60 83,998 -0.30 0.1596
2021-05-14 2021-03-31 13F KLA COM NEW 482480100 254,998 -4,869 -1.87 84,251 25.22 0.1762
2021-02-19 2020-12-31 13F KLA COM NEW 482480100 259,867 998 0.39 67,282 34.49 0.1534
2020-11-13 2020-09-30 13F KLA COM NEW 482480100 258,869 0 0.00 50,026 -0.63 0.1314
2020-08-11 2020-06-30 13F KLA COM NEW 482480100 258,869 -1,384 -0.53 50,345 34.58 0.1438
2020-05-27 2020-03-31 13F KLA COM NEW 482480100 260,253 5,359 2.10 37,409 -17.63 0.1266
2020-02-21 2019-12-31 13F KLA COM NEW 482480100 254,894 33,987 15.39 45,414 28.93 0.1246
2019-11-15 2019-09-30 13F KLA COM NEW 482480100 220,907 11,242 5.36 35,224 42.14 0.1115
2019-08-14 2019-06-30 13F KLA-TENCOR COM 482480100 209,665 10,153 5.09 24,782 4.02 0.0828
2019-05-15 2019-03-31 13F KLA-TENCOR COM 482480100 199,512 7,906 4.13 23,824 16.05 0.0916
2019-02-15 2018-12-31 13F KLA-TENCOR COM 482480100 191,606 13,628 7.66 20,529 13.41 0.0847
2018-11-15 2018-09-30 13F KLA-TENCOR COM 482480100 177,978 762 0.43 18,102 0.33 0.0737
2018-08-14 2018-06-30 13F KLA-TENCOR COM 482480100 177,216 8,863 5.26 18,042 -1.69 0.0816
2018-04-13 2018-03-31 13F KLA-TENCOR COM 482480100 168,353 -1,427 -0.84 18,352 2.88 0.0910
2018-01-17 2017-12-31 13F KLA-TENCOR COM 482480100 169,780 6,722 4.12 17,839 4.27 0.0891
2017-10-16 2017-09-30 13F KLA-Tencor COM 482480100 163,058 6,447 4.12 17,108 18.08 0.0941
2017-07-13 2017-06-30 13F KLA-TENCOR COM 482480100 156,611 13,919 9.75 14,488 6.16 0.0863
2017-04-11 2017-03-31 13F KLA-TENCOR COM 482480100 142,692 246 0.17 13,647 21.76 0.0914
2017-01-18 2016-12-31 13F KLA-TENCOR COM 482480100 142,446 9,488 7.14 11,208 20.92 0.0767
2016-10-14 2016-09-30 13F KLA-TENCOR COM 482480100 132,958 11,631 9.59 9,269 4.30 0.0743
2016-08-11 2016-06-30 13F KLA-TENCOR COM 482480100 121,327 121,114 56,861.03 8,887 55,443.75 0.0789
2016-05-16 2016-03-31 13F KLA-TENCOR COM 482480100 213 213 0.00 16 0.0002
2015-10-15 2015-09-30 13F KLA-TENCOR COM 482480100 0 -87,040 -100.00 0 -100.00
2015-07-15 2015-06-30 13F KLA-TENCOR COM 482480100 87,040 13,481 18.33 4,892 14.09 0.0635
2015-04-15 2015-03-31 13F KLA-TENCOR COM 482480100 73,559 10,825 17.26 4,288 -2.79 0.0620
2015-01-13 2014-12-31 13F KLA-TENCOR COM 482480100 62,734 -6,874 -9.88 4,411 -19.57 0.0744
2014-11-07 2014-09-30 13F KLA-TENCOR COM 482480100 69,608 69,608 5,484 0.0871
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.