KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionContravisory Investment Management, Inc.
Latest Disclosed Ownership8,178 shares
Latest Disclosed Value $ 12,041,369
Contravisory Investment Management, Inc. reports 3.94% increase in ownership of KLAC / KLA Corporation

On April 20, 2026 - Contravisory Investment Management, Inc. filed a 13F-HR form disclosing ownership of 8,178 shares of KLA Corporation (MX:KLAC) valued at $12,041,369 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 7,868 shares of KLA Corporation. This represents a change in shares of 3.94% 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)
2026-04-20 2026-03-31 13F KLA COM NEW 482480100 8,178 310 3.94 12,041 25.95 2.4672
2026-01-12 2025-12-31 13F KLA COM NEW 482480100 7,868 -241 -2.97 9,560 9.31 1.8940
2025-10-09 2025-09-30 13F KLA COM NEW 482480100 8,109 8,109 8,746 1.6936
2025-04-10 2025-03-31 13F KLA COM NEW 482480100 0 -16 -100.00 0 -100.00
2025-01-14 2024-12-31 13F KLA COM NEW 482480100 16 -1,965 -99.19 10 -99.35 0.0022
2024-10-09 2024-09-30 13F KLA COM NEW 482480100 1,981 2 0.10 1,534 -5.95 0.3281
2024-07-10 2024-06-30 13F KLA COM NEW 482480100 1,979 -169 -7.87 1,632 8.73 0.3613
2024-04-11 2024-03-31 13F KLA COM NEW 482480100 2,148 -172 -7.41 1,501 11.28 0.3324
2024-01-11 2023-12-31 13F KLA COM NEW 482480100 2,320 -32 -1.36 1,349 25.05 0.3305
2023-10-10 2023-09-30 13F KLA COM NEW 482480100 2,352 -93 -3.80 1,079 -9.03 0.3054
2023-07-12 2023-06-30 13F KLA COM NEW 482480100 2,445 61 2.56 1,186 24.61 0.3134
2023-04-12 2023-03-31 13F KLA COM NEW 482480100 2,384 552 30.13 952 37.83 0.2685
2023-01-13 2022-12-31 13F KLA COM NEW 482480100 1,832 156 9.31 691 36.09 0.1915
2022-10-12 2022-09-30 13F KLA COM NEW 482480100 1,676 0 0.00 507 -5.23 0.1692
2022-07-13 2022-06-30 13F KLA COM NEW 482480100 1,676 -550 -24.71 535 -34.36 0.1736
2022-04-08 2022-03-31 13F KLA COM NEW 482480100 2,226 -196 -8.09 815 -21.79 0.2312
2022-01-12 2021-12-31 13F KLA COM NEW 482480100 2,422 836 52.71 1,042 96.23 0.2812
2021-10-12 2021-09-30 13F KLA COM NEW 482480100 1,586 -1 -0.06 531 3.11 0.1613
2021-07-14 2021-06-30 13F KLA COM NEW 482480100 1,587 40 2.59 515 0.78 0.1519
2021-04-14 2021-03-31 13F KLA COM NEW 482480100 1,547 -22 -1.40 511 25.86 0.1598
2021-01-13 2020-12-31 13F KLA COM NEW 482480100 1,569 -186 -10.60 406 19.41 0.1260
2020-10-08 2020-09-30 13F KLA COM NEW 482480100 1,755 0 0.00 340 0.29 0.1158
2020-07-09 2020-06-30 13F KLA COM NEW 482480100 1,755 1,733 7,877.27 339 11,200.00 0.1246
2020-04-09 2020-03-31 13F KLA COM NEW 482480100 22 22 3 0.0013
2019-01-14 2018-12-31 13F KLA-TENCOR COM 482480100 0 -3,349 -100.00 0 -100.00
2018-10-11 2018-09-30 13F KLA-TENCOR COM 482480100 3,349 -18 -0.53 341 -1.16 0.1224
2018-07-11 2018-06-30 13F KLA-TENCOR COM 482480100 3,367 -33 -0.97 345 -7.01 0.1259
2018-04-09 2018-03-31 13F KLA-TENCOR COM 482480100 3,400 201 6.28 371 10.42 0.1369
2018-01-18 2017-12-31 13F KLA-TENCOR COM 482480100 3,199 331 11.54 336 10.53 0.1219
2017-10-12 2017-09-30 13F KLA-TENCOR COM 482480100 2,868 9 0.31 304 16.03 0.1085
2017-07-25 2017-06-30 13F KLA-TENCOR COM 482480100 2,859 18 0.63 262 -2.96 0.0944
2017-04-07 2017-03-31 13F KLA-Tencor com 482480100 2,841 2,841 270 0.0952
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.