KLA Corporation
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
InstitutionCommerce Bank
Latest Disclosed Ownership13,514 shares
Latest Disclosed Value $ 19,898,147
Commerce Bank reports 11.48% increase in ownership of KLAC / KLA Corporation

On May 11, 2026 - Commerce Bank filed a 13F-HR form disclosing ownership of 13,514 shares of KLA Corporation (US:KLAC) valued at $19,898,149 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 12,122 shares of KLA Corporation. This represents a change in shares of 11.48% during the quarter. The current value of the position is $28,718,737 USD.

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)
2026-05-11 2026-03-31 13F KLA COM NEW 482480100 13,514 1,392 11.48 19,898 35.09 0.0963
2026-02-13 2025-12-31 13F KLA COM NEW 482480100 12,122 5,385 79.93 14,729 102.71 0.0813
2025-11-12 2025-09-30 13F KLA COM NEW 482480100 6,737 1,037 18.19 7,267 42.33 0.0404
2025-08-07 2025-06-30 13F KLA COM NEW 482480100 5,700 20 0.35 5,106 32.22 0.0301
2025-05-08 2025-03-31 13F KLA COM NEW 482480100 5,680 -890 -13.55 3,861 -6.72 0.0246
2025-02-13 2024-12-31 13F KLA COM NEW 482480100 6,570 -258 -3.78 4,140 -21.71 0.0255
2024-11-08 2024-09-30 13F KLA COM NEW 482480100 6,828 590 9.46 5,288 2.80 0.0324
2024-08-12 2024-06-30 13F KLA COM NEW 482480100 6,238 95 1.55 5,143 19.86 0.0333
2024-05-03 2024-03-31 13F KLA COM NEW 482480100 6,143 -166 -2.63 4,291 17.02 0.0284
2024-02-09 2023-12-31 13F KLA COM NEW 482480100 6,309 -89 -1.39 3,667 24.98 0.0261
2023-11-14 2023-09-30 13F KLA COM NEW 482480100 6,398 126 2.01 2,935 -3.55 0.0231
2023-08-08 2023-06-30 13F KLA COM NEW 482480100 6,272 3 0.05 3,042 21.58 0.0228
2023-05-04 2023-03-31 13F KLA COM NEW 482480100 6,269 318 5.34 2,502 11.55 0.0196
2023-02-10 2022-12-31 13F KLA COM NEW 482480100 5,951 160 2.76 2,244 27.95 0.0182
2022-11-04 2022-09-30 13F KLA COM NEW 482480100 5,791 418 7.78 1,753 2.28 0.0152
2022-08-12 2022-06-30 13F KLA COM NEW 482480100 5,373 -270 -4.78 1,714 -17.04 0.0140
2022-05-09 2022-03-31 13F KLA COM NEW 482480100 5,643 1,139 25.29 2,066 6.66 0.0142
2022-02-14 2021-12-31 13F KLA COM NEW 482480100 4,504 147 3.37 1,937 32.85 0.0127
2021-11-09 2021-09-30 13F KLA COM NEW 482480100 4,357 -14,330 -76.68 1,458 -75.94 0.0103
2021-08-09 2021-06-30 13F KLA COM NEW 482480100 18,687 -443 -2.32 6,059 -4.14 0.0430
2021-05-05 2021-03-31 13F KLA COM NEW 482480100 19,130 -26,060 -57.67 6,321 -45.98 0.0481
2021-02-09 2020-12-31 13F KLA COM NEW 482480100 45,190 -12,186 -21.24 11,701 5.26 0.0946
2020-11-06 2020-09-30 13F KLA COM NEW 482480100 57,376 11,462 24.96 11,116 24.48 0.1005
2020-08-07 2020-06-30 13F KLA COM NEW 482480100 45,914 40,078 686.74 8,930 964.36 0.0870
2020-05-08 2020-03-31 13F KLA COM NEW 482480100 5,836 1,374 30.79 839 5.53 0.0102
2020-02-14 2019-12-31 13F KLA COM NEW 482480100 4,462 248 5.89 795 18.30 0.0076
2019-11-12 2019-09-30 13F KLA COM NEW 482480100 4,214 -55 -1.29 672 33.33 0.0069
2019-08-07 2019-06-30 13F KLA COM NEW 482480100 4,269 593 16.13 504 14.81 0.0057
2019-05-08 2019-03-31 13F KLA-TENCOR COM 482480100 3,676 -415 -10.14 439 19.95 0.0052
2019-02-11 2018-12-31 13F KLA-TENCOR COM 482480100 4,091 42 1.04 366 -10.95 0.0047
2018-11-02 2018-09-30 13F KLA-TENCOR COM 482480100 4,049 616 17.94 411 16.76 0.0049
2018-08-08 2018-06-30 13F KLA-TENCOR COM 482480100 3,433 480 16.25 352 9.32 0.0045
2018-05-03 2018-03-31 13F KLA-TENCOR COM 482480100 2,953 -160 -5.14 322 -1.53 0.0042
2018-02-12 2017-12-31 13F KLA-TENCOR COM 482480100 3,113 466 17.60 327 16.37 0.0043
2017-11-07 2017-09-30 13F/A-1 KLA-TENCOR COM 482480100 2,647 0 0.00 281 16.12 0.0038
2017-11-07 2017-09-30 13F KLA-TENCOR COM 482480100 2,647 242
2017-08-08 2017-06-30 13F KLA-TENCOR COM 482480100 2,647 -12 -0.45 242 -3.97 0.0034
2017-05-05 2017-03-31 13F KLA-TENCOR COM 482480100 2,659 2,659 252 0.0036
2016-04-27 2016-03-31 13F KLA-TENCOR COM 482480100 0 -2,974 -100.00 0 -100.00
2016-02-12 2015-12-31 13F KLA-TENCOR COM 482480100 2,974 2,974 206 0.0034
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.