KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionVestmark Advisory Solutions, Inc.
Latest Disclosed Ownership1,422 shares
Latest Disclosed Value $ 2,094,474
Vestmark Advisory Solutions, Inc. reports 4.56% decrease in ownership of KLAC / KLA Corporation

On May 15, 2026 - Vestmark Advisory Solutions, Inc. filed a 13F-HR form disclosing ownership of 1,422 shares of KLA Corporation (MX:KLAC) valued at $2,094,474 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 1,490 shares of KLA Corporation. This represents a change in shares of -4.56% 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 1,422 -68 -4.56 2,094 15.63 0.0144
2026-02-06 2025-12-31 13F KLA COM NEW 482480100 1,490 -492 -24.82 1,811 -15.29 0.0244
2025-11-10 2025-09-30 13F KLA COM NEW 482480100 1,982 -106 -5.08 2,138 14.39 0.0408
2025-08-06 2025-06-30 13F KLA COM NEW 482480100 2,088 1,426 215.41 1,870 315.33 0.0270
2025-05-13 2025-03-31 13F KLA COM NEW 482480100 662 338 104.32 450 120.59 0.0116
2025-02-06 2024-12-31 13F KLA COM NEW 482480100 324 -486 -60.00 204 -67.46 0.0070
2024-11-14 2024-09-30 13F KLA COM NEW 482480100 810 -160 -16.49 627 -21.53 0.0234
2024-08-12 2024-06-30 13F KLA COM NEW 482480100 970 -77 -7.35 800 9.30 0.0334
2024-05-15 2024-03-31 13F KLA COM NEW 482480100 1,047 192 22.46 732 47.08 0.0315
2024-02-06 2023-12-31 13F KLA COM NEW 482480100 855 -16 -1.84 497 24.56 0.0253
2023-11-06 2023-09-30 13F KLA COM NEW 482480100 871 -5,957 -87.24 400 -87.95 0.0291
2023-08-07 2023-06-30 13F KLA COM NEW 482480100 6,828 -204 -2.90 3,312 17.96 0.1261
2023-05-09 2023-03-31 13F KLA COM NEW 482480100 7,032 -450 -6.01 2,807 -0.50 0.1216
2023-01-20 2022-12-31 13F KLA COM NEW 482480100 7,482 197 2.70 2,821 27.94 0.1374
2022-11-03 2022-09-30 13F KLA COM NEW 482480100 7,285 779 11.97 2,205 6.21 0.1229
2022-08-04 2022-06-30 13F KLA COM NEW 482480100 6,506 -19 -0.29 2,076 -13.10 0.1186
2022-04-27 2022-03-31 13F KLA COM NEW 482480100 6,525 3,594 122.62 2,389 89.45 0.1352
2022-01-31 2021-12-31 13F KLA COM NEW 482480100 2,931 667 29.46 1,261 66.58 0.0712
2021-11-15 2021-09-30 13F KLA COM NEW 482480100 2,264 267 13.37 757 17.00 0.0513
2021-08-09 2021-06-30 13F KLA COM NEW 482480100 1,997 178 9.79 647 7.65 0.0460
2021-05-10 2021-03-31 13F KLA COM NEW 482480100 1,819 245 15.57 601 47.30 0.0533
2021-02-04 2020-12-31 13F KLA COM NEW 482480100 1,574 8 0.51 408 34.65 0.0458
2020-10-19 2020-09-30 13F KLA COM NEW 482480100 1,566 308 24.48 303 23.67 0.0407
2020-08-13 2020-06-30 13F KLA COM NEW 482480100 1,258 1,258 245 0.0379
2019-11-05 2019-09-30 13F KLA-TENCOR COM 482480100 0 -2,531 -100.00 0 -100.00
2019-08-20 2019-06-30 13F KLA-TENCOR COM 482480100 2,531 10 0.40 299 -0.66 0.0512
2019-05-14 2019-03-31 13F KLA-TENCOR COM 482480100 2,521 2,521 301 0.0537
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.