KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionNomura Holdings Inc
Latest Disclosed Ownership18,760 shares
Latest Disclosed Value $ 27,622,412
Nomura Holdings Inc ownership in KLAC / KLA Corporation

On May 15, 2026 - Nomura Holdings Inc filed a 13F-HR form disclosing ownership of 18,760 shares of KLA Corporation (MX:KLAC) valued at $27,622,412 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 32,012 shares of KLA Corporation. This represents a change in shares of -41.40% during the quarter.

Nomura Holdings Inc has a history of taking positions in derivatives of the underlying security (KLAC) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:KLAC / KLA Corporation Historical Put/Call Ratio
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 18,760 -13,252 -41.40 27,622 -28.99 0.0732
2026-02-17 2025-12-31 13F KLA COM NEW 482480100 32,012 5,351 20.07 38,897 35.27 0.0518
2025-11-14 2025-09-30 13F KLA COM NEW 482480100 26,661 19,634 279.41 28,757 356.88 0.0445
2025-08-18 2025-06-30 13F/A-1 KLA COM NEW 482480100 7,027 -5,314 -43.06 6,294 -24.97 0.0131
2025-08-14 2025-06-30 13F KLA COM NEW 482480100 9,048 -3,293 8,105 0.0102
2025-05-15 2025-03-31 13F KLA COM NEW 482480100 12,341 -137 -1.10 8,389 6.70 0.0157
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 12,478 4,857 63.73 7,863 33.23 0.0106
2025-01-13 2024-09-30 13F/A-1 KLA COM NEW 482480100 7,621 4,841 174.14 5,902 157.46 0.0135
2024-11-14 2024-09-30 13F KLA COM NEW 482480100 7,621 4,841 5,902 0.0098
2024-08-14 2024-06-30 13F KLA COM NEW 482480100 2,780 123 4.63 2,292 23.49 0.0044
2024-05-15 2024-03-31 13F KLA COM NEW 482480100 2,657 -97 -3.52 1,856 16.00 0.0046
2024-03-27 2023-12-31 13F/A-1 KLA COM NEW 482480100 2,754 2,754 1,601 0.0043
2024-02-14 2023-12-31 13F KLA COM NEW 482480100 2,754 2,754 1,601 0.0043
2023-05-15 2023-03-31 13F KLA CMN 482480100 0 -27 -100.00 0 0.0000
2023-02-15 2022-12-31 13F/A-1 KLA CMN 482480100 27 27 0 0.0000
2023-02-14 2022-12-31 13F KLA CMN 482480100 27 27 0 0.0000
2022-11-15 2022-09-30 13F KLA CMN 482480100 0 -986 -100.00 0 -100.00
2022-08-17 2022-06-30 13F/A-1 KLA CMN 482480100 986 -1,960 -66.53 292 -72.45 0.0010
2022-08-15 2022-06-30 13F KLA CMN 482480100 986 -1,960 292 0.0008
2022-05-18 2022-03-31 13F KLA CMN 482480100 2,946 -141,713 -97.96 1,060 -98.30 0.0032
2022-02-14 2021-12-31 13F KLA CMN 482480100 144,659 128,945 820.57 62,209 1,081.11 0.1578
2021-11-15 2021-09-30 13F KLA CMN 482480100 15,714 12,835 445.81 5,267 463.92 0.0131
2021-08-16 2021-06-30 13F KLA CMN 482480100 2,879 -8,822 -75.40 934 31,033.33 0.0024
2021-05-17 2021-03-31 13F KLA CMN 482480100 11,701 -155,138 -92.99 4 -93.02 0.0088
2021-02-16 2020-12-31 13F KLA CMN 482480100 166,839 90,968 119.90 43 -99.71 0.0722
2020-11-12 2020-09-30 13F KLA CMN 482480100 75,871 75,871 14,665 0.0321
2019-08-14 2019-06-30 13F KLA-TENCOR CMN 482480100 0 -7,832 -100.00 0 -100.00
2019-05-14 2019-03-31 13F KLA-TENCOR CMN 482480100 7,832 -10,019 -56.13 956 -40.10 0.0040
2019-02-14 2018-12-31 13F KLA-TENCOR CMN 482480100 17,851 10,665 148.41 1,596 120.44 0.0059
2018-11-14 2018-09-30 13F KLA-TENCOR CMN 482480100 7,186 7,186 724 0.0025
2018-08-17 2018-06-30 13F/A-1 KLA-TENCOR CMN 482480100 0 -26,059 -100.00 0 -100.00
2018-05-14 2018-03-31 13F/A-1 KLA-TENCOR CMN 482480100 26,059 15,939 157.50 2,836 166.04 0.0049
2018-05-14 2018-03-31 13F KLA-TENCOR CMN 482480100 36,179 3,902
2018-02-14 2017-12-31 13F KLA-TENCOR CMN 482480100 10,120 169 1.70 1,066 1.04 0.0019
2017-11-14 2017-09-30 13F KLA-TENCOR CMN 482480100 9,951 -3,878 -28.04 1,055 -16.67 0.0022
2017-08-15 2017-06-30 13F KLA-TENCOR CMN 482480100 13,829 11,205 427.02 1,266 406.40 0.0031
2017-05-18 2017-03-31 13F/A-1 KLA-TENCOR CMN 482480100 2,624 -19,901 -88.35 250 -85.91 0.0006
2017-05-15 2017-03-31 13F KLA-TENCOR CMN 482480100 2,624 -19,901 250
2017-02-13 2016-12-31 13F KLA-TENCOR CMN 482480100 22,525 17,969 394.40 1,774 459.62 0.0045
2016-11-14 2016-09-30 13F KLA-TENCOR CMN 482480100 4,556 695 18.00 317 12.01 0.0009
2016-09-02 2016-06-30 13F/A-1 KLA-TENCOR CMN 482480100 3,861 -45,589 -92.19 283 -92.14 0.0009
2016-08-15 2016-06-30 13F KLA-TENCOR CMN 482480100 3,861 283
2016-05-16 2016-03-31 13F KLA-TENCOR CMN 482480100 49,450 20,681 71.89 3,600 80.81 0.0122
2016-02-12 2015-12-31 13F KLA-TENCOR CMN 482480100 28,769 28,769 0.00 1,991 0.0056
2015-11-16 2015-09-30 13F KLA-TENCOR CMN 482480100 0 -40,851 -100.00 0 -100.00
2015-08-14 2015-06-30 13F KLA-TENCOR CMN 482480100 40,851 18,076 79.37 2,329 72.90 0.0066
2015-05-15 2015-03-31 13F KLA-TENCOR CMN 482480100 22,775 6,940 43.83 1,347 20.05 0.0044
2015-02-17 2014-12-31 13F KLA-TENCOR CMN 482480100 15,835 9,980 170.45 1,122 146.05 0.0030
2014-11-14 2014-09-30 13F KLA-TENCOR CMN 482480100 5,855 57 0.98 456 9.62 0.0012
2014-08-13 2014-06-30 13F KLA-TENCOR CMN 482480100 5,798 -28,057 -82.87 416 -82.24 0.0001
2014-05-14 2014-03-31 13F KLA-TENCOR CMN 482480100 33,855 -12,567 -27.07 2,343 -21.35 0.0007
2014-02-14 2013-12-31 13F KLA-TENCOR CMN 482480100 46,422 16,630 55.82 2,979 64.49 0.0136
2013-11-14 2013-09-30 13F KLA-TENCOR CMN 482480100 29,792 7,901 36.09 1,811 48.44 0.0109
2013-08-15 2013-06-30 13F KLA-TENCOR CMN 482480100 21,891 -6,376 -22.56 1,220 -18.12 0.0099
2013-08-16 2013-03-31 13F/A-2 KLA-TENCOR CMN 482480100 28,267 10,650 60.45 1,490 78.23 0.0157
2013-08-16 2012-12-31 13F/A-1 KLA-TENCOR CMN 482480100 17,617 17,617 836 0.0093
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F KLA COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F KLA COM NEW Call 6,500 0.00 7,898 12.67 n/a n/a n/a
2025-11-14 2025-09-30 13F KLA COM NEW Call 6,500 0.00 7,011 20.41 n/a n/a n/a
2025-08-18 2025-06-30 13F/A KLA COM NEW Call 6,500 -29.35 5,822 -6.91 n/a n/a n/a
2025-08-14 2025-06-30 13F KLA COM NEW Call 6,500 5,822 n/a n/a n/a
2025-05-15 2025-03-31 13F KLA COM NEW Call 9,200 6,254 n/a n/a n/a
2023-05-15 2023-03-31 13F KLA CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-15 2022-12-31 13F/A KLA CMN Call 42,000 68.67 16 -99.80 n/a n/a n/a
2023-02-14 2022-12-31 13F KLA CMN Call 42,000 16 n/a n/a n/a
2022-11-15 2022-09-30 13F KLA CMN Call 24,900 7,538 n/a n/a n/a
2014-08-13 2014-06-30 13F KLA-TENCOR CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2014-05-14 2014-03-31 13F KLA-TENCOR CMN Call 41,300 2,859 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F KLA COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F KLA COM NEW Put 6,500 0.00 7,898 12.67 n/a n/a n/a
2025-11-14 2025-09-30 13F KLA COM NEW Put 6,500 0.00 7,011 20.41 n/a n/a n/a
2025-08-18 2025-06-30 13F/A KLA COM NEW Put 6,500 -28.57 5,822 -5.88 n/a n/a n/a
2025-08-14 2025-06-30 13F KLA COM NEW Put 6,500 5,822 n/a n/a n/a
2025-05-15 2025-03-31 13F KLA COM NEW Put 9,100 6,186 n/a n/a n/a
2021-05-17 2021-03-31 13F KLA CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-16 2020-12-31 13F KLA CMN Put 100,000 0.00 26 -99.87 n/a n/a n/a
2020-11-12 2020-09-30 13F KLA CMN Put 100,000 19,330 n/a n/a n/a
2017-05-18 2017-03-31 13F/A KLA-TENCOR CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-13 2016-12-31 13F KLA-TENCOR CMN Put 29,200 -41.83 2,299 -34.22 n/a n/a n/a
2016-11-14 2016-09-30 13F KLA-TENCOR CMN Put 50,200 76.14 3,495 67.47 n/a n/a n/a
2016-09-02 2016-06-30 13F/A KLA-TENCOR CMN Put 28,500 0.00 2,087 0.58 n/a n/a n/a
2016-08-15 2016-06-30 13F KLA-TENCOR CMN Put 28,500 2,087 n/a n/a n/a
2016-05-16 2016-03-31 13F KLA-TENCOR CMN Put 28,500 2,075 n/a n/a n/a
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.