KLA Corporation
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
InstitutionGM Advisory Group, Inc.
Latest Disclosed Ownership3,105 shares
Latest Disclosed Value $ 4,571,995
GM Advisory Group, Inc. reports 4.17% decrease in ownership of KLAC / KLA Corporation

On April 28, 2026 - GM Advisory Group, Inc. filed a 13F-HR form disclosing ownership of 3,105 shares of KLA Corporation (US:KLAC) valued at $4,571,833 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,240 shares of KLA Corporation. This represents a change in shares of -4.17% during the quarter. The current value of the position is $6,598,467 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-28 2026-03-31 13F Kla-Tencor Com 482480100 3,105 -135 -4.17 4,572 16.13 0.1691
2026-02-13 2025-12-31 13F Kla-Tencor COM 482480100 3,240 -479 -12.88 3,937 -1.87
2025-11-19 2025-09-30 13F KLA COM NEW 482480100 3,719 2 0.05 4,011 20.49 0.1706
2025-08-13 2025-06-30 13F KLA COM NEW 482480100 3,717 -96 -2.52 3,329 28.43 0.1646
2025-05-14 2025-03-31 13F KLA COM NEW 482480100 3,813 228 6.36 2,592 14.79 0.1400
2025-02-11 2024-12-31 13F KLA COM NEW 482480100 3,585 -15 -0.42 2,259 -18.98 0.1250
2024-11-12 2024-09-30 13F KLA COM NEW 482480100 3,600 -204 -5.36 2,788 -11.13 0.1671
2024-08-12 2024-06-30 13F KLA COM NEW 482480100 3,804 3 0.08 3,136 18.12 0.2024
2024-05-09 2024-03-31 13F KLA COM NEW 482480100 3,801 12 0.32 2,655 20.57 0.1862
2024-02-12 2023-12-31 13F KLA COM NEW 482480100 3,789 115 3.13 2,203 30.68 0.1663
2023-11-14 2023-09-30 13F KLA COM NEW 482480100 3,674 -330 -8.24 1,685 -13.23 0.1377
2023-08-14 2023-06-30 13F KLA COM NEW 482480100 4,004 -553 -12.14 1,942 6.76 0.1608
2023-05-12 2023-03-31 13F KLA COM NEW 482480100 4,557 -57 -1.24 1,819 4.60 0.1656
2023-02-13 2022-12-31 13F KLA COM NEW 482480100 4,614 -680 -12.84 1,740 8.55 0.1856
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 5,294 -1,119 -17.45 1,602 -21.70 0.2016
2022-08-15 2022-06-30 13F KLA COM NEW 482480100 6,413 -4,219 -39.68 2,046 -47.43 0.3191
2022-05-13 2022-03-31 13F KLA COM NEW 482480100 10,632 -501 -4.50 3,892 -18.71 0.4629
2022-02-10 2021-12-31 13F KLA COM NEW 482480100 11,133 -150 -1.33 4,788 26.87 0.4265
2021-11-12 2021-09-30 13F KLA COM NEW 482480100 11,283 374 3.43 3,774 6.70 0.3806
2021-08-16 2021-06-30 13F KLA COM NEW 482480100 10,909 -474 -4.16 3,537 -5.96 0.3628
2021-05-13 2021-03-31 13F KLA COM NEW 482480100 11,383 -1,957 -14.67 3,761 8.89 0.4512
2021-02-12 2020-12-31 13F KLA COM NEW 482480100 13,340 -2,658 -16.61 3,454 11.46 0.4627
2020-11-12 2020-09-30 13F KLA COM NEW 482480100 15,998 0 0.00 3,099 -0.39 0.4741
2020-08-13 2020-06-30 13F KLA COM NEW 482480100 15,998 -566 -3.42 3,111 30.66 0.5754
2020-05-13 2020-03-31 13F KLA COM NEW 482480100 16,564 16,564 2,381 0.6484
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.