KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionD.a. Davidson & Co.
Latest Disclosed Ownership3,977 shares
Latest Disclosed Value $ 5,856,228
D.a. Davidson & Co. reports 0.20% decrease in ownership of KLAC / KLA Corporation

On May 5, 2026 - D.a. Davidson & Co. filed a 13F-HR form disclosing ownership of 3,977 shares of KLA Corporation (MX:KLAC) valued at $5,856,228 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 3,985 shares of KLA Corporation. This represents a change in shares of -0.20% 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)
2026-05-05 2026-03-31 13F KLA COM NEW 482480100 3,977 -8 -0.20 5,856 20.94 0.0355
2026-01-29 2025-12-31 13F KLA COM NEW 482480100 3,985 -362 -8.33 4,842 3.26 0.0297
2025-10-22 2025-09-30 13F KLA COM NEW 482480100 4,347 90 2.11 4,689 22.97 0.0300
2025-07-30 2025-06-30 13F KLA COM NEW 482480100 4,257 -22 -0.51 3,813 31.08 0.0269
2025-04-28 2025-03-31 13F KLA COM NEW 482480100 4,279 -150 -3.39 2,909 4.27 0.0234
2025-01-31 2024-12-31 13F KLA COM NEW 482480100 4,429 660 17.51 2,791 -4.39 0.0227
2024-11-13 2024-09-30 13F KLA COM NEW 482480100 3,769 66 1.78 2,919 -4.33 0.0241
2024-08-01 2024-06-30 13F KLA COM NEW 482480100 3,703 -379 -9.28 3,051 6.98 0.0270
2024-05-13 2024-03-31 13F KLA COM NEW 482480100 4,082 41 1.01 2,852 21.37 0.0257
2024-02-09 2023-12-31 13F KLA COM NEW 482480100 4,041 168 4.34 2,349 32.26 0.0230
2023-11-08 2023-09-30 13F KLA COM NEW 482480100 3,873 368 10.50 1,776 4.47 0.0193
2023-08-11 2023-06-30 13F KLA COM NEW 482480100 3,505 47 1.36 1,700 23.19 0.0180
2023-04-25 2023-03-31 13F KLA COM NEW 482480100 3,458 156 4.72 1,381 10.93 0.0155
2023-02-03 2022-12-31 13F KLA COM NEW 482480100 3,302 117 3.67 1,245 29.05 0.0147
2022-11-07 2022-09-30 13F KLA COM NEW 482480100 3,185 186 6.20 964 0.73 0.0126
2022-07-28 2022-06-30 13F KLA COM NEW 482480100 2,999 14 0.47 957 -12.44 0.0120
2022-05-12 2022-03-31 13F KLA COM NEW 482480100 2,985 -340 -10.23 1,093 -23.57 0.0119
2022-01-31 2021-12-31 13F KLA COM NEW 482480100 3,325 304 10.06 1,430 41.44 0.0152
2021-11-15 2021-09-30 13F KLA COM NEW 482480100 3,021 260 9.42 1,011 12.96 0.0117
2021-08-10 2021-06-30 13F KLA COM NEW 482480100 2,761 2,761 895 0.0105
2020-11-02 2020-09-30 13F KLA COM NEW 482480100 0 -1,419 -100.00 0 -100.00
2020-08-10 2020-06-30 13F KLA COM NEW 482480100 1,419 1,419 276 0.0052
2019-05-13 2019-03-31 13F KLA-TENCOR COM 482480100 0 -10,547 -100.00 0 -100.00
2019-01-29 2018-12-31 13F KLA-TENCOR COM 482480100 10,547 723 7.36 944 -5.51 0.0184
2018-11-13 2018-09-30 13F KLA-TENCOR COM 482480100 9,824 9,824 -6.86 999 5.83 0.0178
2017-11-08 2017-09-30 13F KLA-TENCOR COM 482480100 0 -129 -100.00 0 -100.00
2017-08-11 2017-06-30 13F KLA-TENCOR COM 482480100 129 0 0.00 11 -8.33 0.0002
2017-05-12 2017-03-31 13F KLA-TENCOR COM 482480100 129 -396 -75.43 12 -70.73 0.0003
2017-02-15 2016-12-31 13F KLA-TENCOR COM 482480100 525 52 10.99 41 32.26 0.0009
2016-11-18 2016-09-30 13F/A-1 KLA-TENCOR COM 482480100 473 0 0.00 31 -8.82 0.0008
2016-11-14 2016-09-30 13F KLA-TENCOR COM 482480100 473 31
2016-08-13 2016-06-30 13F KLA-TENCOR COM 482480100 473 190 67.14 34 70.00 0.0010
2016-05-13 2016-03-31 13F KLA-TENCOR COM 482480100 283 154 119.38 20 150.00 0.0006
2016-02-12 2015-12-31 13F KLA-TENCOR COM 482480100 129 0 0.00 8 33.33 0.0003
2015-11-13 2015-09-30 13F KLA-TENCOR COM 482480100 129 0 0.00 6 -14.29 0.0002
2015-08-14 2015-06-30 13F KLA-TENCOR COM 482480100 129 0 0.00 7 0.00 0.0002
2015-05-06 2015-03-31 13F KLA-TENCOR COM 482480100 129 0 0.00 7 -22.22 0.0002
2015-02-12 2014-12-31 13F KLA-TENCOR COM 482480100 129 -567 -81.47 9 -83.33 0.0003
2014-11-12 2014-09-30 13F KLA-TENCOR COM 482480100 696 -260 -27.20 54 -19.40 0.0018
2014-07-29 2014-06-30 13F KLA-TENCOR COM 482480100 956 -90 -8.60 67 -4.29 0.0023
2014-05-05 2014-03-31 13F KLA-TENCOR COM 482480100 1,046 -36 -3.33 70 2.94 0.0025
2014-02-13 2013-12-31 13F/A-1 KLA-TENCOR COM 482480100 1,082 531 96.37 68 106.06 0.0025
2014-02-12 2013-12-31 13F KLA-TENCOR COM 482480100 1,082 68
2013-11-14 2013-09-30 13F KLA-TENCOR COM 482480100 551 0 0.00 33 10.00 0.0015
2013-08-16 2013-06-30 13F KLA-TENCOR COM 482480100 551 551 30 0.0014
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.