KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionM&t Bank Corp
Latest Disclosed Ownership17,273 shares
Latest Disclosed Value $ 25,433,253
M&t Bank Corp reports 6.09% increase in ownership of KLAC / KLA Corporation

On May 12, 2026 - M&t Bank Corp filed a 13F-HR form disclosing ownership of 17,273 shares of KLA Corporation (MX:KLAC) valued at $25,433,253 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 30, 2026 disclosing 16,282 shares of KLA Corporation. This represents a change in shares of 6.09% 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)
2026-05-12 2026-03-31 13F KLA COM NEW 482480100 17,273 991 6.09 25,433 28.55 0.0206
2026-01-30 2025-12-31 13F/A-1 KLA COM NEW 482480100 16,282 1,297 8.66 19,784 22.40 0.0635
2026-01-28 2025-12-31 13F KLA COM NEW 482480100 1,351,265 1,336,280 131,647 0.0784
2025-11-14 2025-09-30 13F KLA COM NEW 482480100 14,985 -1,951 -11.52 16,163 6.54 0.0543
2025-08-13 2025-06-30 13F KLA COM NEW 482480100 16,936 -266 -1.55 15,171 29.74 0.0521
2025-04-30 2025-03-31 13F KLA COM NEW 482480100 17,202 -650 -3.64 11,694 3.95 0.0426
2025-02-06 2024-12-31 13F KLA COM NEW 482480100 17,852 128 0.72 11,249 -18.04 0.0377
2024-11-19 2024-09-30 13F/A-1 KLA COM NEW 482480100 17,724 83 0.47 13,726 -5.64 0.0451
2024-11-15 2024-09-30 13F KLA COM NEW 482480100 17,724 83 13,726 0.0083
2024-07-31 2024-06-30 13F KLA COM NEW 482480100 17,641 112 0.64 14,546 18.78 0.0496
2024-05-07 2024-03-31 13F KLA COM NEW 482480100 17,529 -992 -5.36 12,245 13.75 0.0426
2024-02-06 2023-12-31 13F KLA COM NEW 482480100 18,521 361 1.99 10,766 29.25 0.0395
2023-11-02 2023-09-30 13F KLA COM NEW 482480100 18,160 -1,113 -5.77 8,330 -10.90 0.0332
2023-08-09 2023-06-30 13F KLA COM NEW 482480100 19,273 214 1.12 9,348 22.89 0.0349
2023-05-11 2023-03-31 13F KLA COM NEW 482480100 19,059 2,983 18.56 7,608 25.51 0.0295
2023-02-13 2022-12-31 13F/A-1 KLA COM NEW 482480100 16,076 -2,201 -12.04 6,061 9.58 0.0244
2023-02-13 2022-12-31 13F KBR COM 482480100 5,424 -12,853 2,026 0.0081
2022-11-17 2022-09-30 13F/A-1 KLA COM NEW 482480100 18,277 -188 -1.02 5,531 1.79 0.0246
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 18,277 -188 5,153 0.0044
2022-08-05 2022-06-30 13F KLA COM NEW 482480100 18,465 2,577 16.22 5,434 -6.55 0.0256
2022-05-09 2022-03-31 13F KLA COM NEW 482480100 15,888 -1,009 -5.97 5,815 -19.99 0.0257
2022-02-07 2021-12-31 13F KLA COM NEW 482480100 16,897 802 4.98 7,268 34.99 0.0305
2021-10-28 2021-09-30 13F KLA COM NEW 482480100 16,095 -145 -0.89 5,384 2.24 0.0242
2021-08-13 2021-06-30 13F KLA COM NEW 482480100 16,240 -270 -1.64 5,266 -3.43 0.0231
2021-05-06 2021-03-31 13F KLA COM NEW 482480100 16,510 -1,607 -8.87 5,453 16.24 0.0235
2021-02-12 2020-12-31 13F KLA COM NEW 482480100 18,117 3,551 24.38 4,691 66.23 0.0206
2020-11-06 2020-09-30 13F KLA COM NEW 482480100 14,566 -243 -1.64 2,822 -2.01 0.0139
2020-07-29 2020-06-30 13F KLA COM NEW 482480100 14,809 -349 -2.30 2,880 32.29 0.0154
2020-05-14 2020-03-31 13F KLA COM NEW 482480100 15,158 538 3.68 2,177 -16.40 0.0129
2020-02-07 2019-12-31 13F KLA COM NEW 482480100 14,620 32 0.22 2,604 12.00 0.0122
2019-11-12 2019-09-30 13F KLA COM NEW 482480100 14,588 1,037 7.65 2,325 45.04 0.0116
2019-08-12 2019-06-30 13F KLA-TENCOR COM 482480100 13,551 -941 -6.49 1,603 -7.39 0.0084
2019-05-15 2019-03-31 13F KLA-TENCOR COM 482480100 14,492 6,476 80.79 1,731 141.09 0.0091
2019-02-01 2018-12-31 13F KLA-TENCOR COM 482480100 8,016 -5,298 -39.79 718 -46.97 0.0041
2018-11-09 2018-09-30 13F KLA-TENCOR COM 482480100 13,314 -1,938 -12.71 1,354 -13.37 0.0068
2018-08-10 2018-06-30 13F KLA-TENCOR COM 482480100 15,252 -9 -0.06 1,563 -6.07 0.0084
2018-05-04 2018-03-31 13F KLA-TENCOR COM 482480100 15,261 -767 -4.79 1,664 -1.13 0.0089
2018-02-06 2017-12-31 13F KLA-TENCOR COM 482480100 16,028 -1,181 -6.86 1,683 -7.78 0.0088
2017-11-13 2017-09-30 13F KLA-TENCOR COM 482480100 17,209 -424 -2.40 1,825 13.14 0.0099
2017-08-11 2017-06-30 13F KLA-TENCOR COM 482480100 17,633 110 0.63 1,613 -3.12 0.0095
2017-05-10 2017-03-31 13F KLA-TENCOR COM 482480100 17,523 2,372 15.66 1,665 39.80 0.0101
2017-02-14 2016-12-31 13F KLA-TENCOR COM 482480100 15,151 -643 -4.07 1,191 8.08 0.0074
2016-11-04 2016-09-30 13F KLA-TENCOR COM 482480100 15,794 5,266 50.02 1,102 42.93 0.0070
2016-08-04 2016-06-30 13F KLA-TENCOR COM 482480100 10,528 33 0.31 771 0.92 0.0052
2016-05-11 2016-03-31 13F KLA-TENCOR COM 482480100 10,495 940 9.84 764 15.23 0.0052
2016-02-12 2015-12-31 13F KLA-TENCOR COM 482480100 9,555 -3,852 -28.73 663 -1.34 0.0044
2015-11-13 2015-09-30 13F KLA-TENCOR COM 482480100 13,407 5,719 74.39 672 55.20 0.0046
2015-08-14 2015-06-30 13F KLA-TENCOR COM 482480100 7,688 -3,151 -29.07 433 -31.49 0.0026
2015-05-14 2015-03-31 13F KLA-TENCOR COM 482480100 10,839 -1,442 -11.74 632 -26.77 0.0039
2015-02-12 2014-12-31 13F KLA-TENCOR COM 482480100 12,281 2,590 26.73 863 12.96 0.0054
2014-11-14 2014-09-30 13F KLA-TENCOR COM 482480100 9,691 9,691 764 0.0054
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.