KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionPathstone Holdings, LLC
Latest Disclosed Ownership17,436 shares
Latest Disclosed Value $ 25,673,075
Pathstone Holdings, LLC reports 5.32% increase in ownership of KLAC / KLA Corporation

On May 11, 2026 - Pathstone Holdings, LLC filed a 13F-HR form disclosing ownership of 17,436 shares of KLA Corporation (MX:KLAC) valued at $25,673,075 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 16,556 shares of KLA Corporation. This represents a change in shares of 5.32% 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)
2026-05-11 2026-03-31 13F KLA COM NEW 482480100 17,436 880 5.32 25,673 27.62 0.0552
2026-02-13 2025-12-31 13F KLA COM NEW 482480100 16,556 -1,567 -8.65 20,117 2.92 0.0776
2025-11-13 2025-09-30 13F KLA COM NEW 482480100 18,123 -492 -2.64 19,548 17.23 0.0747
2025-08-12 2025-06-30 13F KLA COM NEW 482480100 18,615 -729 -3.77 16,674 26.73 0.0659
2025-05-15 2025-03-31 13F KLA COM NEW 482480100 19,344 1,498 8.39 13,157 17.00 0.0570
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 17,846 82 0.46 11,246 -18.25 0.0497
2024-11-07 2024-09-30 13F KLA COM NEW 482480100 17,764 367 2.11 13,756 -4.10 0.0609
2024-08-14 2024-06-30 13F KLA COM NEW 482480100 17,397 1 0.01 14,344 18.04 0.0647
2024-05-13 2024-03-31 13F KLA COM NEW 482480100 17,396 2,462 16.49 12,153 39.98 0.0566
2024-02-14 2023-12-31 13F KLA COM NEW 482480100 14,934 14,934 8,681 0.0466
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.