KLA Corporation
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
Institution1832 Asset Management L.P.
Latest Disclosed Ownership198,458 shares
Latest Disclosed Value $ 292,211,544
1832 Asset Management L.P. reports 88.28% increase in ownership of KLAC / KLA Corporation

On May 14, 2026 - 1832 Asset Management L.P. filed a 13F-HR form disclosing ownership of 198,458 shares of KLA Corporation (US:KLAC) valued at $292,211,544 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 105,408 shares of KLA Corporation. This represents a change in shares of 88.28% during the quarter. The current value of the position is $382,865,174 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)
2026-05-14 2026-03-31 13F KLA COM NEW 482480100 198,458 93,050 88.28 292,212 128.15 0.2686
2026-02-13 2025-12-31 13F KLA COM NEW 482480100 105,408 -94,009 -47.14 128,079 -40.45 0.0975
2025-11-14 2025-09-30 13F KLA COM NEW 482480100 199,417 -23,691 -10.62 215,091 7.63 0.1698
2025-08-13 2025-06-30 13F KLA COM NEW 482480100 223,108 164,132 278.30 199,847 398.48 0.1559
2025-05-14 2025-03-31 13F KLA COM NEW 482480100 58,976 17,148 41.00 40,092 52.11 0.0364
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 41,828 -4,108 -8.94 26,357 -25.91 0.0224
2024-11-13 2024-09-30 13F KLA COM NEW 482480100 45,936 -155,656 -77.21 35,573 -78.60 0.0271
2024-08-13 2024-06-30 13F KLA COM NEW 482480100 201,592 192,849 2,205.75 166,215 2,621.70 0.1350
2024-05-14 2024-03-31 13F KLA COM NEW 482480100 8,743 -30,644 -77.80 6,108 -73.33 0.0036
2024-02-13 2023-12-31 13F KLA COM NEW 482480100 39,387 -1,300 -3.20 22,896 22.69 0.0330
2023-11-13 2023-09-30 13F KLA COM NEW 482480100 40,687 -5,130 -11.20 18,661 -16.02 0.0265
2023-08-14 2023-06-30 13F KLA COM NEW 482480100 45,817 -17,324 -27.44 22,222 -11.83 0.0432
2023-05-12 2023-03-31 13F KLA COM NEW 482480100 63,141 -60,811 -49.06 25,204 -46.07 0.0518
2023-02-15 2022-12-31 13F KLA COM NEW 482480100 123,952 112,301 963.87 46,734 1,225.38 0.0961
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 11,651 2,257 24.03 3,526 17.65 0.0075
2022-08-15 2022-06-30 13F KLA COM NEW 482480100 9,394 -1,130 -10.74 2,997 -21.11 0.0060
2022-05-16 2022-03-31 13F KLA COM NEW 482480100 10,524 -573,776 -98.20 3,799 -98.49 0.0062
2022-02-15 2021-12-31 13F KLA COM NEW 482480100 584,300 583,219 53,951.80 252,104 68,969.59 0.4461
2021-11-15 2021-09-30 13F KLA COM NEW 482480100 1,081 1,081 365 0.0007
2021-02-16 2020-12-31 13F KLA COM NEW 482480100 0 -3 -100.00 0 -100.00
2020-11-16 2020-09-30 13F KLA COM NEW 482480100 3 -108,797 -100.00 1 -100.00 0.0000
2020-08-14 2020-06-30 13F KLA COM NEW 482480100 108,800 108,800 21,028 0.0631
2020-02-14 2019-12-31 13F KLA COM NEW 482480100 0 -524,900 -100.00 0 -100.00
2019-11-14 2019-09-30 13F KLA COM NEW 482480100 524,900 505,200 2,564.47 83,191 3,485.82 0.2648
2019-08-14 2019-06-30 13F KLA-TENCOR COM 482480100 19,700 19,700 2,320 0.0075
2019-05-15 2019-03-31 13F KLA-TENCOR COM 482480100 0 -65,000 -100.00 0 -100.00
2019-02-14 2018-12-31 13F KLA-TENCOR COM 482480100 65,000 -6,391 -8.95 5,816 -19.70 0.0230
2018-11-14 2018-09-30 13F KLA-TENCOR COM 482480100 71,391 71,391 7,243 0.0236
2018-08-14 2018-06-30 13F KLA-TENCOR COM 482480100 0 -190,568 -100.00 0 -100.00
2018-05-15 2018-03-31 13F KLA-TENCOR COM 482480100 190,568 190,568 20,769 0.0765
2018-02-14 2017-12-31 13F KLA-TENCOR COM 482480100 0 -46,602 -100.00 0 -100.00
2017-11-14 2017-09-30 13F KLA-TENCOR COM 482480100 46,602 -160,898 -77.54 4,649 -75.55 0.0163
2017-08-14 2017-06-30 13F KLA-TENCOR COM 482480100 207,500 -421,116 -66.99 19,011 -68.25 0.0860
2017-05-15 2017-03-31 13F KLA-TENCOR COM 482480100 628,616 -89,646 -12.48 59,875 6.05 0.2141
2017-04-01 2016-12-31 13F/A-1 KLA-TENCOR COM 482480100 718,262 716,862 51,204.43 56,461 57,513.27 0.1732
2017-02-14 2016-12-31 13F KLA-TENCOR COM 482480100 1,400 110
2016-11-15 2016-09-30 13F KLA-TENCOR COM 482480100 1,400 -157,580 -99.12 98 -99.04 0.0004
2014-02-13 2013-12-31 13F KLA-TENCOR COM 482480100 158,980 -710,780 -81.72 10,216 -80.66 0.0393
2013-11-13 2013-09-30 13F KLA-TENCOR COM 482480100 869,760 -69,970 -7.45 52,821 0.93 0.2342
2013-08-14 2013-06-30 13F KLA-TENCOR COM 482480100 939,730 939,730 52,335 0.2292
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.