KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionArizona State Retirement System
Latest Disclosed Ownership36,000 shares
Latest Disclosed Value $ 53,006,760
Arizona State Retirement System reports 2.30% decrease in ownership of KLAC / KLA Corporation

On May 1, 2026 - Arizona State Retirement System filed a 13F-HR form disclosing ownership of 36,000 shares of KLA Corporation (MX:KLAC) valued at $53,006,760 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 36,848 shares of KLA Corporation. This represents a change in shares of -2.30% 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)
2026-05-01 2026-03-31 13F KLA COM NEW 482480100 36,000 -848 -2.30 53,007 18.39 0.3100
2026-01-28 2025-12-31 13F KLA COM NEW 482480100 36,848 -1,771 -4.59 44,773 7.49 0.2436
2025-11-03 2025-09-30 13F KLA COM NEW 482480100 38,619 -192 -0.49 41,654 19.82 0.2220
2025-08-13 2025-06-30 13F KLA COM NEW 482480100 38,811 -432 -1.10 34,765 30.31 0.2003
2025-05-01 2025-03-31 13F KLA COM NEW 482480100 39,243 632 1.64 26,677 9.65 0.1698
2025-02-06 2024-12-31 13F KLA COM NEW 482480100 38,611 77 0.20 24,330 -18.47 0.1487
2024-11-12 2024-09-30 13F KLA COM NEW 482480100 38,534 -672 -1.71 29,841 -7.68 0.1882
2024-08-05 2024-06-30 13F KLA COM NEW 482480100 39,206 198 0.51 32,326 18.63 0.2158
2024-05-07 2024-03-31 13F KLA COM NEW 482480100 39,008 -2,202 -5.34 27,250 13.75 0.1885
2024-01-24 2023-12-31 13F KLA COM NEW 482480100 41,210 2,376 6.12 23,955 34.50 0.1818
2023-11-07 2023-09-30 13F KLA COM NEW 482480100 38,834 -750 -1.89 17,812 -7.23 0.1513
2023-08-01 2023-06-30 13F KLA COM NEW 482480100 39,584 889 2.30 19,199 24.31 0.1558
2023-04-27 2023-03-31 13F KLA COM NEW 482480100 38,695 57 0.15 15,446 6.03 0.1386
2023-02-08 2022-12-31 13F KLA COM NEW 482480100 38,638 -1,928 -4.75 14,568 18.66 0.1407
2022-11-07 2022-09-30 13F KLA COM NEW 482480100 40,566 -782 -1.89 12,276 -6.95 0.1270
2022-07-28 2022-06-30 13F KLA COM NEW 482480100 41,348 -257 -0.62 13,193 -13.37 0.1280
2022-05-04 2022-03-31 13F KLA COM NEW 482480100 41,605 -227 -0.54 15,230 -15.35 0.1227
2022-02-04 2021-12-31 13F KLA COM NEW 482480100 41,832 -912 -2.13 17,992 25.84 0.1371
2021-11-12 2021-09-30 13F KLA COM NEW 482480100 42,744 -424 -0.98 14,298 2.17 0.1167
2021-08-02 2021-06-30 13F KLA COM NEW 482480100 43,168 -543 -1.24 13,995 -3.10 0.1138
2021-05-06 2021-03-31 13F KLA COM NEW 482480100 43,711 -1,146 -2.55 14,442 24.35 0.1262
2021-01-28 2020-12-31 13F KLA COM NEW 482480100 44,857 -2,297 -4.87 11,614 27.12 0.1053
2020-11-05 2020-09-30 13F KLA COM NEW 482480100 47,154 10,327 28.04 9,136 27.56 0.0908
2020-08-04 2020-06-30 13F KLA COM NEW 482480100 36,827 -42,944 -53.83 7,162 -37.54 0.1010
2020-05-05 2020-03-31 13F KLA COM NEW 482480100 79,771 7,533 10.43 11,466 -10.92 0.1971
2020-01-27 2019-12-31 13F KLA COM NEW 482480100 72,238 9,287 14.75 12,871 28.22 0.1550
2019-10-31 2019-09-30 13F KLA COM NEW 482480100 62,951 -1,392 -2.16 10,038 31.99 0.1225
2019-07-25 2019-06-30 13F KLA TENCOR COM 482480100 64,343 15,206 30.95 7,605 29.62 0.0880
2019-04-29 2019-03-31 13F KLA TENCOR COM 482480100 49,137 233 0.48 5,867 34.07 0.0698
2019-01-28 2018-12-31 13F KLA TENCOR COM 482480100 48,904 -12,501 -20.36 4,376 -29.94 0.0563
2018-10-29 2018-09-30 13F KLA TENCOR COM 482480100 61,405 1,309 2.18 6,246 1.36 0.0589
2018-08-07 2018-06-30 13F KLA TENCOR COM 482480100 60,096 -20,176 -25.13 6,162 -29.58 0.0620
2018-05-14 2018-03-31 13F KLA TENCOR COM 482480100 80,272 -1,900 -2.31 8,750 1.34 0.0883
2018-02-09 2017-12-31 13F KLA TENCOR COM 482480100 82,172 9,632 13.28 8,634 12.29 0.0841
2017-11-14 2017-09-30 13F KLA TENCOR COM 482480100 72,540 21,360 41.74 7,689 64.19 0.0919
2017-08-02 2017-06-30 13F KLA TENCOR COM 482480100 51,180 -600 -1.16 4,683 -4.88 0.0649
2017-05-10 2017-03-31 13F KLA TENCOR COM 482480100 51,780 200 0.39 4,923 21.32 0.0691
2017-02-10 2016-12-31 13F KLA TENCOR COM 482480100 51,580 1,100 2.18 4,058 15.32 0.0597
2016-11-01 2016-09-30 13F KLA TENCOR COM 482480100 50,480 -3,900 -7.17 3,519 -11.65 0.0534
2016-08-15 2016-06-30 13F KLA TENCOR COM 482480100 54,380 -4,100 -7.01 3,983 -6.46 0.0559
2016-05-16 2016-03-31 13F KLA TENCOR COM 482480100 58,480 400 0.69 4,258 5.71 0.0554
2016-02-12 2015-12-31 13F KLA TENCOR COM 482480100 58,080 -4,200 -6.74 4,028 29.35 0.0536
2015-11-20 2015-09-30 13F KLA TENCOR COM 482480100 62,280 -6,418 -9.34 3,114 -35.53 0.0437
2015-02-11 2014-12-31 13F KLA TENCOR COM 482480100 68,698 1,000 1.48 4,830 -9.43 0.0569
2014-11-21 2014-09-30 13F KLA TENCOR COM 482480100 67,698 -1,500 -2.17 5,333 6.11 0.0661
2014-08-07 2014-06-30 13F KLA TENCOR COM 482480100 69,198 400 0.58 5,026 5.68 0.0608
2014-05-19 2014-03-31 13F KLA TENCOR COM 482480100 68,798 -2,700 -3.78 4,756 3.21 0.0602
2014-02-05 2013-12-31 13F KLA TENCOR COM 482480100 71,498 -2,600 -3.51 4,608 2.22 0.0567
2013-11-01 2013-09-30 13F KLA TENCOR COM 482480100 74,098 0 0.00 4,508 9.18 0.0577
2013-09-17 2013-06-30 13F KLA TENCOR COM 482480100 74,098 -600 -0.80 4,129 4.82 0.0563
2013-09-17 2013-03-31 13F KLA TENCOR COM 482480100 74,698 74,698 3,939 0.0564
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.