KLA 공사
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership7,171 shares
Latest Disclosed Value $ 10,558,652
Oppenheimer & Co Inc reports 0.01% decrease in ownership of KLAC / KLA Corporation

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 7,171 shares of KLA Corporation (US:KLAC) valued at $10,558,652 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 7,172 shares of KLA Corporation. This represents a change in shares of -0.01% during the quarter. The current value of the position is $15,282,118 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.

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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)
2026-04-23 2026-03-31 13F KLA COM NEW 482480100 7,171 -1 -0.01 10,559 21.16 0.1286
2026-02-02 2025-12-31 13F KLA COM NEW 482480100 7,172 48 0.67 8,715 13.42 0.1237
2025-11-06 2025-09-30 13F KLA COM NEW 482480100 7,124 -1,716 -19.41 7,684 -2.97 0.0937
2025-07-31 2025-06-30 13F KLA COM NEW 482480100 8,840 2,763 45.47 7,918 91.67 0.1047
2025-04-23 2025-03-31 13F KLA COM NEW 482480100 6,077 945 18.41 4,131 27.78 0.0624
2025-02-05 2024-12-31 13F KLA COM NEW 482480100 5,132 -1,951 -27.54 3,234 -41.06 0.0483
2024-11-05 2024-09-30 13F KLA COM NEW 482480100 7,083 -2,227 -23.92 5,485 -28.54 0.0836
2024-08-08 2024-06-30 13F KLA COM NEW 482480100 9,310 -1,319 -12.41 7,676 3.38 0.1218
2024-05-07 2024-03-31 13F KLA COM NEW 482480100 10,629 -615 -5.47 7,425 13.60 0.1231
2024-02-13 2023-12-31 13F KLA COM NEW 482480100 11,244 -2,192 -16.31 6,536 6.07 0.1201
2023-11-08 2023-09-30 13F KLA COM NEW 482480100 13,436 5,820 76.42 6,163 66.86 0.1272
2023-08-03 2023-06-30 13F KLA COM NEW 482480100 7,616 -223 -2.84 3,694 18.02 0.0739
2023-05-10 2023-03-31 13F KLA COM NEW 482480100 7,839 3,124 66.26 3,129 76.08 0.0664
2023-02-08 2022-12-31 13F KLA COM NEW 482480100 4,715 234 5.22 1,778 31.05 0.0405
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 4,481 78 1.77 1,356 -3.49 0.0317
2022-08-08 2022-06-30 13F KLA COM NEW 482480100 4,403 119 2.78 1,405 -10.40 0.0302
2022-05-12 2022-03-31 13F KLA COM NEW 482480100 4,284 -2,335 -35.28 1,568 -44.92 0.0283
2022-02-02 2021-12-31 13F KLA COM NEW 482480100 6,619 2,493 60.42 2,847 106.30 0.0498
2021-11-12 2021-09-30 13F KLA COM NEW 482480100 4,126 1,059 34.53 1,380 38.83 0.0258
2021-08-03 2021-06-30 13F KLA COM NEW 482480100 3,067 0 0.00 994 -1.88 0.0178
2021-05-10 2021-03-31 13F KLA COM NEW 482480100 3,067 93 3.13 1,013 31.56 0.0202
2021-02-11 2020-12-31 13F KLA COM NEW 482480100 2,974 97 3.37 770 38.24 0.0162
2020-11-13 2020-09-30 13F KLA COM NEW 482480100 2,877 -113 -3.78 557 -4.13 0.0139
2020-08-11 2020-06-30 13F KLA COM NEW 482480100 2,990 136 4.77 581 41.71 0.0150
2020-05-08 2020-03-31 13F KLA COM NEW 482480100 2,854 -2,944 -50.78 410 -60.31 0.0124
2020-02-07 2019-12-31 13F KLA COM NEW 482480100 5,798 2,554 78.73 1,033 99.81 0.0256
2019-10-31 2019-09-30 13F KLA COM NEW 482480100 3,244 3,244 517 0.0141
2016-02-03 2015-12-31 13F KLA-TENCOR COM 482480100 0 -58,746 -100.00 0 -100.00
2015-11-13 2015-09-30 13F KLA-TENCOR COM 482480100 58,746 53,877 1,106.53 2,937 971.90 0.0892
2015-08-12 2015-06-30 13F KLA-TENCOR COM 482480100 4,869 4,869 274 0.0076
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.