科蘭公司
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership3,207 shares
Latest Disclosed Value $ 4,723,068
Private Advisor Group, LLC ownership in KLAC / KLA Corporation

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 3,207 shares of KLA Corporation (MX:KLAC) valued at $4,723,068 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,094 shares of KLA Corporation. This represents a change in shares of 3.65% during the quarter.

Private Advisor Group, LLC 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 .

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)
2026-04-24 2026-03-31 13F KLA COM NEW 482480100 3,207 113 3.65 4,723 25.61 0.0210
2026-02-17 2025-12-31 13F KLA COM NEW 482480100 3,094 -151 -4.65 3,760 7.46 0.0169
2025-11-13 2025-09-30 13F KLA COM NEW 482480100 3,245 -547 -14.43 3,500 3.03 0.0172
2025-08-11 2025-06-30 13F KLA COM NEW 482480100 3,792 121 3.30 3,397 36.11 0.0183
2025-05-05 2025-03-31 13F KLA COM NEW 482480100 3,671 7 0.19 2,496 8.10 0.0151
2025-02-03 2024-12-31 13F KLA COM NEW 482480100 3,664 -2,086 -36.28 2,309 -48.17 0.0130
2024-10-22 2024-09-30 13F KLA COM NEW 482480100 5,750 28 0.49 4,453 -5.62 0.0276
2024-08-05 2024-06-30 13F KLA COM NEW 482480100 5,722 2,034 55.15 4,719 83.15 0.0317
2024-04-30 2024-03-31 13F KLA COM NEW 482480100 3,688 -432 -10.49 2,576 7.56 0.0185
2024-02-06 2023-12-31 13F KLA COM NEW 482480100 4,120 506 14.00 2,395 44.54 0.0186
2023-11-03 2023-09-30 13F KLA COM NEW 482480100 3,614 -1,361 -27.36 1,658 -32.15 0.0148
2023-08-10 2023-06-30 13F KLA COM NEW 482480100 4,975 895 21.94 2,443 50.00 0.0212
2023-05-10 2023-03-31 13F KLA COM NEW 482480100 4,080 4,080 1,628 0.0156
2023-01-18 2022-12-31 13F KLA COM NEW 482480100 0 -9,432 -100.00 0 -100.00
2022-10-14 2022-09-30 13F KLA COM NEW 482480100 9,432 -7,196 -43.28 2,854 -46.21 0.0328
2022-07-13 2022-06-30 13F KLA COM NEW 482480100 16,628 -3,314 -16.62 5,306 -27.33 0.0473
2022-05-12 2022-03-31 13F/A-1 KLA COM NEW 482480100 19,942 9,909 98.76 7,301 69.16 0.0559
2022-05-10 2022-03-31 13F KLA COM NEW 482480100 10,033 0 4,316 0.0324
2022-02-10 2021-12-31 13F KLA COM NEW 482480100 10,033 -2,504 -19.97 4,316 2.88 0.0324
2021-10-14 2021-09-30 13F KLA COM NEW 482480100 12,537 5,352 74.49 4,195 80.12 0.0267
2021-08-12 2021-06-30 13F KLA COM NEW 482480100 7,185 586 8.88 2,329 6.83 0.0203
2021-04-22 2021-03-31 13F KLA COM NEW 482480100 6,599 609 10.17 2,180 40.65 0.0208
2021-04-01 2020-12-31 13F KLA COM NEW 482480100 5,990 1,250 26.37 1,550 68.48 0.0162
2020-11-02 2020-09-30 13F KLA COM NEW 482480100 4,740 -2,408 -33.69 920 -33.86 0.0120
2020-08-17 2020-06-30 13F KLA COM NEW 482480100 7,148 3,927 121.92 1,391 200.43 0.0193
2020-05-12 2020-03-31 13F KLA COM NEW 482480100 3,221 65 2.06 463 -17.62 0.0085
2020-02-10 2019-12-31 13F KLA COM NEW 482480100 3,156 -7,367 -70.01 562 -66.88 0.0087
2019-11-13 2019-09-30 13F KLA COM NEW 482480100 10,523 6,415 156.16 1,697 249.18 0.0264
2019-08-14 2019-06-30 13F KLA-TENCOR COM 482480100 4,108 -1,022 -19.92 486 -20.20 0.0088
2019-05-13 2019-03-31 13F KLA-TENCOR COM 482480100 5,130 2,381 86.61 609 147.56 0.0120
2019-02-08 2018-12-31 13F KLA-TENCOR COM 482480100 2,749 -1,329 -32.59 246 -40.72 0.0059
2018-11-01 2018-09-30 13F KLA-TENCOR COM 482480100 4,078 576 16.45 415 14.33 0.0085
2018-08-09 2018-06-30 13F KLA-TENCOR COM 482480100 3,502 3,502 363 0.0060
2018-05-09 2018-03-31 13F KLA-TENCOR COM 482480100 0 -3,358 -100.00 0 -100.00
2018-02-07 2017-12-31 13F KLA-TENCOR COM 482480100 3,358 -223 -6.23 368 -1.34 0.0155
2017-11-13 2017-09-30 13F KLA-TENCOR COM 482480100 3,581 -225 -5.91 373 2.75 0.0092
2017-08-10 2017-06-30 13F KLA-TENCOR COM 482480100 3,806 -3,855 -50.32 363 2.25 0.0098
2017-05-10 2017-03-31 13F KLA-TENCOR COM 482480100 7,661 7,661 355 0.0099
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
(%)
2024-02-06 2023-12-31 13F KLA COM NEW Call 0 -100.00 0 n/a n/a n/a
2023-11-03 2023-09-30 13F KLA COM NEW Call 200 1 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.