KLA Corporation
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
InstitutionMan Group plc
Latest Disclosed Ownership78,698 shares
Latest Disclosed Value $ 115,875,723
Man Group plc ownership in KLAC / KLA Corporation

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 78,698 shares of KLA Corporation (US:KLAC) valued at $115,875,722 USD as of March 31, 2026. The current value of the position is $167,241,907 USD.

Man Group plc 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 3,000 of underlying shares valued at $4,417,230 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.

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 78,698 -6,330 -7.44 115,876 12.16 0.1294
2026-02-17 2025-12-31 13F KLA COM NEW 482480100 85,028 3,434 4.21 103,316 17.39 0.1756
2025-11-14 2025-09-30 13F KLA COM NEW 482480100 81,594 -5,652 -6.48 88,007 12.61 0.1530
2025-08-14 2025-06-30 13F KLA COM NEW 482480100 87,246 -6,803 -7.23 78,150 22.23 0.1489
2025-05-15 2025-03-31 13F KLA COM NEW 482480100 94,049 -101,857 -51.99 63,935 -48.21 0.1621
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 195,906 67,132 52.13 123,444 23.79 0.3248
2024-11-14 2024-09-30 13F KLA COM NEW 482480100 128,774 24,624 23.64 99,724 16.13 0.2597
2024-08-14 2024-06-30 13F KLA COM NEW 482480100 104,150 19,525 23.07 85,873 45.26 0.2169
2024-05-15 2024-03-31 13F KLA COM NEW 482480100 84,625 -45,842 -35.14 59,116 -22.05 0.1490
2024-02-14 2023-12-31 13F KLA COM NEW 482480100 130,467 75,840 -11.94 0.2112
2023-11-14 2023-09-30 13F KLA COM NEW 482480100 86,127 29.66 0.2668
2023-08-14 2023-06-30 13F KLA COM NEW 482480100 136,949 66,423 -10.70 0.2049
2023-05-15 2023-03-31 13F KLA COM NEW 482480100 74,385 220.51 0.2646
2023-02-14 2022-12-31 13F KLA COM NEW 482480100 61,555 51,008 483.63 23,208 627.07 0.0832
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 10,547 3,192 -68.38 0.0148
2022-08-15 2022-06-30 13F KLA COM NEW 482480100 10,095 -58.60 0.0428
2022-05-16 2022-03-31 13F KLA COM NEW 482480100 66,607 -38,713 -36.76 24,382 -46.18 0.0848
2022-02-14 2021-12-31 13F KLA COM NEW 482480100 105,320 44,958 74.48 45,299 124.34 0.1456
2021-11-15 2021-09-30 13F KLA COM NEW 482480100 60,362 20,262 50.53 20,192 55.31 0.0708
2021-08-16 2021-06-30 13F KLA COM NEW 482480100 40,100 37,448 1,412.07 13,001 1,384.13 0.0458
2021-05-17 2021-03-31 13F KLA COM NEW 482480100 2,652 -6,611 -71.37 876 -63.47 0.0039
2021-02-16 2020-12-31 13F KLA COM NEW 482480100 9,263 -21,230 -69.62 2,398 -59.41 0.0105
2020-11-16 2020-09-30 13F KLA COM NEW 482480100 30,493 14,041 85.35 5,908 84.63 0.0232
2020-08-14 2020-06-30 13F KLA COM NEW 482480100 16,452 12,399 305.92 3,200 448.89 0.0161
2020-05-15 2020-03-31 13F KLA COM NEW 482480100 4,053 -99,495 -96.09 583 -96.84 0.0038
2020-02-18 2019-12-31 13F KLA COM NEW 482480100 103,548 34,252 49.43 18,449 66.97 0.0607
2019-11-14 2019-09-30 13F KLA COM NEW 482480100 69,296 -76,321 -52.41 11,049 -35.81 0.0410
2019-08-14 2019-06-30 13F KLA-TENCOR COM 482480100 145,617 -446,759 -75.42 17,212 -75.67 0.0622
2019-05-15 2019-03-31 13F KLA-TENCOR COM 482480100 592,376 -38,050 -6.04 70,735 25.38 0.2684
2019-02-14 2018-12-31 13F KLA-TENCOR COM 482480100 630,426 294,212 87.51 56,416 64.97 0.2510
2018-11-14 2018-09-30 13F KLA-TENCOR COM 482480100 336,214 -10,762 -3.10 34,197 -3.88 0.1249
2018-08-14 2018-06-30 13F KLA-TENCOR COM 482480100 346,976 80,598 30.26 35,576 22.52 0.1464
2018-05-15 2018-03-31 13F KLA-TENCOR COM 482480100 266,378 266,378 29,038 0.1329
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 3,000 4,417 n/a n/a n/a
2022-08-15 2022-06-30 13F KLA COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F KLA COM NEW Call 100 37 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.