KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionKentucky Retirement Systems
Latest Disclosed Ownership13,759 shares
Latest Disclosed Value $ 887
Kentucky Retirement Systems reports 64.68% increase in ownership of KLAC / KLA Corporation

On May 19, 2026 - Kentucky Retirement Systems filed a 13F-HR form disclosing ownership of 13,759 shares of KLA Corporation (MX:KLAC) valued at $887 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 8,355 shares of KLA Corporation. This represents a change in shares of 64.68% 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)
2026-05-19 2026-03-31 13F KLA-TENCOR COM 482480100 13,759 5,404 64.68 1 -100.00 0.0650
2026-02-10 2025-12-31 13F KLA COM NEW 482480100 8,355 0 0.00 10,152 12.65 0.2750
2025-11-13 2025-09-30 13F KLA COM NEW 482480100 8,355 -166 -1.95 9,012 18.07 0.2493
2025-08-20 2025-06-30 13F KLA COM NEW 482480100 8,521 -558 -6.15 7,633 23.68 0.2233
2025-04-22 2025-03-31 13F KLA COM NEW 482480100 9,079 -159 -1.72 6,172 6.01 0.1882
2025-02-03 2024-12-31 13F KLA COM NEW 482480100 9,238 -127 -1.36 5,821 -19.73 0.1716
2024-11-06 2024-09-30 13F KLA COM NEW 482480100 9,365 -781 -7.70 7,252 -13.31 0.2138
2024-08-12 2024-06-30 13F KLA COM NEW 482480100 10,146 -124 -1.21 8,365 16.60 0.2423
2024-05-15 2024-03-31 13F KLA COM NEW 482480100 10,270 -606 -5.57 7,174 13.48 0.2143
2024-02-08 2023-12-31 13F KLA COM NEW 482480100 10,876 -952 -8.05 6,322 16.53 0.1974
2023-10-12 2023-09-30 13F KLA COM NEW 482480100 11,828 797 7.23 5,425 108,400.00 0.1885
2023-08-07 2023-06-30 13F KLA COM NEW 482480100 11,031 82 0.75 5 25.00 0.1791
2023-05-10 2023-03-31 13F KLA COM NEW 482480100 10,949 -200 -1.79 4 0.00 0.1610
2023-02-06 2022-12-31 13F KLA COM NEW 482480100 11,149 49 0.44 4 -99.88 0.1658
2022-11-16 2022-09-30 13F KLA COM NEW 482480100 11,100 24 0.22 3,359 -4.95 0.1425
2022-08-08 2022-06-30 13F KLA COM NEW 482480100 11,076 1,469 15.29 3,534 0.48 0.1493
2022-05-09 2022-03-31 13F KLA COM NEW 482480100 9,607 245 2.62 3,517 -12.66 0.1441
2022-02-04 2021-12-31 13F KLA COM NEW 482480100 9,362 963 11.47 4,027 43.31 0.1637
2021-11-17 2021-09-30 13F KLA COM NEW 482480100 8,399 -527 -5.90 2,810 -2.90 0.1322
2021-08-12 2021-06-30 13F KLA COM NEW 482480100 8,926 -495 -5.25 2,894 -7.04 0.1368
2021-05-14 2021-03-31 13F KLA COM NEW 482480100 9,421 -172 -1.79 3,113 25.32 0.1522
2021-02-11 2020-12-31 13F KLA COM NEW 482480100 9,593 508 5.59 2,484 41.14 0.1282
2020-11-12 2020-09-30 13F KLA COM NEW 482480100 9,085 453 5.25 1,760 4.82 0.1086
2020-08-12 2020-06-30 13F KLA COM NEW 482480100 8,632 -2,145 -19.90 1,679 8.39 0.1178
2020-05-01 2020-03-31 13F KLA COM NEW 482480100 10,777 2,659 32.75 1,549 7.12 0.1059
2020-02-18 2019-12-31 13F KLA COM NEW 482480100 8,118 -43 -0.53 1,446 11.15 0.1053
2019-11-05 2019-09-30 13F KLA COM NEW 482480100 8,161 634 8.42 1,301 46.18 0.1033
2019-08-07 2019-06-30 13F/A-1 KLA-TENCOR COM 482480100 7,527 304 4.21 890 3.25 0.0785
2019-08-07 2019-06-30 13F KLA-TENCOR COM 482480100 7,527 304 890
2019-05-22 2019-03-31 13F KLA-TENCOR COM 482480100 7,223 565 8.49 862 44.63 0.0834
2019-02-25 2018-12-31 13F KLA-TENCOR COM 482480100 6,658 9 0.14 596 -11.83 0.0653
2018-11-19 2018-09-30 13F/A-1 KLA-TENCOR COM 482480100 6,649 31 0.47 676 -0.44 0.0646
2018-11-16 2018-09-30 13F KLA-TENCOR COM 482480100 13,759 7,141 887
2018-08-13 2018-06-30 13F KLA-TENCOR COM 482480100 6,618 -1,556 -19.04 679 -23.79 0.0695
2018-05-07 2018-03-31 13F KLA-TENCOR COM 482480100 8,174 -1,490 -15.42 891 -12.22 0.0759
2018-02-13 2017-12-31 13F KLA-TENCOR COM 482480100 9,664 39 0.41 1,015 -0.49 0.0723
2017-11-08 2017-09-30 13F KLA-TENCOR COM 482480100 9,625 -424 -4.22 1,020 10.87 0.0770
2017-08-18 2017-06-30 13F KLA-TENCOR COM 482480100 10,049 1 0.01 920 -3.66 0.0691
2017-05-24 2017-03-31 13F KLA-TENCOR COM 482480100 10,048 -1,295 -11.42 955 7.06 0.0735
2017-02-24 2016-12-31 13F KLA-TENCOR COM 482480100 11,343 -580 -4.86 892 7.34 0.0638
2016-11-30 2016-09-30 13F KLA-TENCOR COM 482480100 11,923 -1,318 -9.95 831 -14.33 0.0553
2016-09-12 2016-06-30 13F KLA-TENCOR COM 482480100 13,241 -1,060 -7.41 970 -6.82 0.0628
2016-06-09 2016-03-31 13F KLA-TENCOR COM 482480100 14,301 2,456 20.73 1,041 26.80 0.0632
2016-02-22 2015-12-31 13F KLA-TENCOR COM 482480100 11,845 1,036 9.58 821 52.04 0.0604
2015-11-18 2015-09-30 13F KLA-TENCOR COM 482480100 10,809 18 0.17 540 -11.04 0.0465
2015-08-26 2015-06-30 13F KLA-TENCOR COM 482480100 10,791 -158 -1.44 607 -4.86 0.0494
2015-05-29 2015-03-31 13F KLA-TENCOR COM 482480100 10,949 -1,278 -10.45 638 -25.81 0.0518
2015-03-04 2014-12-31 13F KLA-TENCOR COM 482480100 12,227 -638 -4.96 860 -15.19 0.0634
2014-12-12 2014-09-30 13F KLA-TENCOR COM 482480100 12,865 -943 -6.83 1,014 6.18 0.0744
2014-05-22 2014-03-31 13F KLA-TENCOR COM 482480100 13,808 49 0.36 955 7.67 0.0690
2014-02-13 2013-12-31 13F KLA-TENCOR COM 482480100 13,759 -7 -0.05 887 5.85 0.0650
2013-11-15 2013-09-30 13F KLA-TENCOR COM 482480100 13,766 13,766 838 0.0675
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.