KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionFrontier Capital Management Co Llc
Latest Disclosed Ownership8,099 shares
Latest Disclosed Value $ 11,925,049
Frontier Capital Management Co Llc reports 35.09% decrease in ownership of KLAC / KLA Corporation

On May 15, 2026 - Frontier Capital Management Co Llc filed a 13F-HR form disclosing ownership of 8,099 shares of KLA Corporation (MX:KLAC) valued at $11,925,049 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,477 shares of KLA Corporation. This represents a change in shares of -35.09% 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)
2026-05-15 2026-03-31 13F KLA COM NEW 482480100 8,099 -4,378 -35.09 11,925 -21.34 0.1226
2026-02-17 2025-12-31 13F KLA COM NEW 482480100 12,477 -13,417 -51.82 15,161 -45.72 0.1609
2025-11-14 2025-09-30 13F KLA COM NEW 482480100 25,894 -11,547 -30.84 27,929 -16.72 0.2504
2025-08-14 2025-06-30 13F KLA COM NEW 482480100 37,441 -10,328 -21.62 33,537 3.28 0.3105
2025-05-15 2025-03-31 13F KLA COM NEW 482480100 47,769 -2,950 -5.82 32,473 1.61 0.3551
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 50,719 -3,158 -5.86 31,959 -23.40 0.3037
2024-11-14 2024-09-30 13F KLA COM NEW 482480100 53,877 7,592 16.40 41,723 9.33 0.3927
2024-08-14 2024-06-30 13F KLA COM NEW 482480100 46,285 -2,176 -4.49 38,162 12.73 0.3779
2024-05-15 2024-03-31 13F KLA COM NEW 482480100 48,461 -14,348 -22.84 33,853 -7.28 0.3164
2024-02-14 2023-12-31 13F KLA COM NEW 482480100 62,809 -23,250 -27.02 36,511 -7.50 0.3688
2023-11-14 2023-09-30 13F KLA COM NEW 482480100 86,059 -50,139 -36.81 39,472 -40.25 0.4339
2023-08-14 2023-06-30 13F KLA COM NEW 482480100 136,198 18,545 15.76 66,059 40.66 0.6329
2023-05-15 2023-03-31 13F KLA COM NEW 482480100 117,653 -21,380 -15.38 46,964 -10.41 0.4857
2023-02-14 2022-12-31 13F KLA COM NEW 482480100 139,033 -44,595 -24.29 52,420 -5.67 0.5709
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 183,628 -9,608 -4.97 55,571 -9.87 0.6516
2022-07-20 2022-06-30 13F KLA COM NEW 482480100 193,236 -22,154 -10.29 61,658 -21.80 0.7099
2022-04-14 2022-03-31 13F KLA COM NEW 482480100 215,390 -33,951 -13.62 78,846 -26.48 0.7140
2022-01-19 2021-12-31 13F KLA COM NEW 482480100 249,341 -37,477 -13.07 107,244 11.78 0.8477
2021-10-19 2021-09-30 13F KLA COM NEW 482480100 286,818 123,797 75.94 95,943 81.53 0.7540
2021-08-09 2021-06-30 13F KLA COM NEW 482480100 163,021 -20,895 -11.36 52,853 -13.02 0.3871
2021-05-13 2021-03-31 13F KLA COM NEW 482480100 183,916 -38,104 -17.16 60,766 5.71 0.4597
2021-01-19 2020-12-31 13F KLA COM NEW 482480100 222,020 -73,930 -24.98 57,483 0.25 0.4255
2020-11-16 2020-09-30 13F KLA COM NEW 482480100 295,950 -89,034 -23.13 57,337 -23.42 0.5007
2020-07-17 2020-06-30 13F KLA COM NEW 482480100 384,984 141,117 57.87 74,872 113.60 0.6627
2020-04-16 2020-03-31 13F KLA COM NEW 482480100 243,867 -32,687 -11.82 35,053 -28.86 0.3938
2020-02-14 2019-12-31 13F KLA COM NEW 482480100 276,554 -200,125 -41.98 49,274 -35.17 0.3640
2019-11-14 2019-09-30 13F KLA COM NEW 482480100 476,679 476,679 76,006 0.5951
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.