KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership6,191,475 shares
Ownership 3.90%
Jpmorgan Chase & Co ownership in KLAC / KLA Corporation

2017-11-07 - Jpmorgan Chase & Co has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 6,191,475 shares of KLA Corporation (MX:KLAC). This represents 3.9 percent ownership of the company. In their previous filing dated 2017-01-19 , Jpmorgan Chase & Co had reported owning 8,079,210 shares, indicating a decrease of -23.37 percent.

Jpmorgan Chase & Co 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 37,200 of underlying shares valued at $51,431,976 USD and put options representing 33,300 of underlying shares valued at $46,039,914 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: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2017-11-07 2017-11-07 13G/A 8,079,210 6,191,475 -23.37 3.90 -23.53
2017-01-19 2017-01-19 13G/A 10,318,194 8,079,210 -21.70 5.10 -22.73
2016-01-19 2016-01-19 13G/A 12,035,819 10,318,194 -14.27 6.60 -14.29
2015-12-07 2015-12-07 13G/A 12,035,819 7.70
2015-01-15 2015-01-15 13G/A 21,388,292 13.00
2014-03-07 2014-03-07 13G/A 17,419,835 10.40
2014-01-28 2014-01-28 13G 15,152,421 9.00

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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)
2026-05-13 2026-03-31 13F/A-1 KLA COMMON 482480100 630,179 143,736 29.55 871,277 47.41 0.0061
2026-02-11 2025-12-31 13F KLA COMMON 482480100 486,443 -459,476 -48.57 591,069 -42.07 0.0371
2025-11-26 2025-09-30 13F/A-1 KLA COMMON 482480100 945,919 236,473 33.33 1,020,300 60.55 0.0611
2025-11-07 2025-09-30 13F KLA COMMON 482480100 945,919 236,473 1,020,300 0.0065
2025-08-12 2025-06-30 13F KLA COMMON 482480100 709,446 104,022 17.18 635,507 54.41 0.0416
2025-05-12 2025-03-31 13F KLA COMMON 482480100 605,424 100,715 19.96 411,568 29.41 0.0301
2025-02-12 2024-12-31 13F KLA COMMON 482480100 504,709 -33,338 -6.20 318,028 -23.67 0.0237
2024-12-26 2024-09-30 13F/A-1 KLA COMMON 482480100 538,047 -79,522 -12.88 416,670 -18.17 0.0317
2024-11-08 2024-09-30 13F KLA COMMON 482480100 538,047 -79,522 416,670 0.0318
2024-12-26 2024-06-30 13F/A-1 KLA COMMON 482480100 617,569 53,068 9.40 509,192 29.12 0.0418
2024-08-12 2024-06-30 13F KLA COMMON 482480100 617,569 53,068 509,192 0.0418
2024-12-26 2024-03-31 13F/A-1 KLA COMMON 482480100 564,501 155,787 38.12 394,343 65.98 0.0333
2024-05-10 2024-03-31 13F KLA COMMON 482480100 564,501 155,787 394,343 0.0334
2024-12-26 2023-12-31 13F/A-1 KLA COMMON 482480100 408,714 1,105 0.27 237,586 27.08 0.0228
2024-02-12 2023-12-31 13F KLA COMMON 482480100 408,714 1,105 237,586 0.0228
2023-11-14 2023-09-30 13F KLA COM 482480100 407,609 40,527 11.04 186,954 5.00 0.0206
2023-08-11 2023-06-30 13F KLA COMMON 482480100 367,082 21,723 6.29 178,042 29.15 0.0193
2023-05-18 2023-03-31 13F/A-1 KLA COMMON 482480100 345,359 121,987 54.61 137,857 164,014.29 0.0168
2023-05-11 2023-03-31 13F KLA COMMON 482480100 280,189 56,817 137,858 0.0020
2023-02-13 2022-12-31 13F KLA COMMON 482480100 223,372 -4,803 -2.10 84 -99.88 0.0111
2022-11-14 2022-09-30 13F KLA COMMON 482480100 228,175 -96,385 -29.70 69,052 -33.32 0.0099
2022-08-11 2022-06-30 13F KLA COMMON 482480100 324,560 -97,387 -23.08 103,561 -32.95 0.0144
2022-05-11 2022-03-31 13F KLA COMMON 482480100 421,947 49,874 13.40 154,457 -3.48 0.0186
2022-02-11 2021-12-31 13F/A-1 KLA COMMON 482480100 372,073 147,485 65.67 160,032 113.02 0.0185
2022-02-10 2021-12-31 13F KLA COMMON 482480100 372,073 147,485 160,032 0.0183
2021-11-12 2021-09-30 13F KLA COMMON 482480100 224,588 -55,916 -19.93 75,127 -17.39 0.0093
2021-08-12 2021-06-30 13F KLA COMMON 482480100 280,504 -121,296 -30.19 90,941 -31.50 0.0108
2021-05-12 2021-03-31 13F KLA COMMON 482480100 401,800 72,728 22.10 132,754 55.81 0.0177
2021-02-19 2020-12-31 13F/A-1 KLA COMMON 482480100 329,072 -366,116 -52.66 85,201 -36.61 0.0125
2021-02-11 2020-12-31 13F KLA COMMON 482480100 329,072 -366,116 85,201 2,107.0814
2020-11-12 2020-09-30 13F/A-1 KLA COMMON 482480100 695,188 -475,764 -40.63 134,400 -40.98 0.0226
2020-11-12 2020-09-30 13F KLA COMMON 482480100 695,188 134,400
2020-08-11 2020-06-30 13F KLA COMMON 482480100 1,170,952 428,841 57.79 227,728 113.49 0.0439
2020-05-12 2020-03-31 13F KLA COMMON 482480100 742,111 -805,639 -52.05 106,670 -61.32 0.0250
2020-02-11 2019-12-31 13F KLA COMMON 482480100 1,547,750 -353,695 -18.60 275,762 -9.04 0.0514
2019-11-12 2019-09-30 13F KLA COMMON 482480100 1,901,445 1,645,219 642.10 303,185 904.99 0.0604
2019-08-07 2019-06-30 13F KLA-TENCOR COMMON 482480100 256,226 -407,960 -61.42 30,168 -61.96 0.0059
2019-05-07 2019-03-31 13F KLA-TENCOR COMMON 482480100 664,186 248,106 59.63 79,310 113.00 0.0162
2019-02-11 2018-12-31 13F KLA-TENCOR COMMON 482480100 416,080 131,107 46.01 37,234 28.46 0.0086
2018-11-13 2018-09-30 13F/A-1 KLA-TENCOR COMMON 482480100 284,973 -2,280,780 -88.89 28,984 -88.98 0.0056
2018-11-07 2018-09-30 13F KLA-TENCOR COMMON 482480100 284,973 -2,280,780 28,984
2018-08-14 2018-06-30 13F KLA-TENCOR COMMON 482480100 2,565,753 408,014 18.91 263,065 11.84 0.0541
2018-05-10 2018-03-31 13F KLA-TENCOR COMMON 482480100 2,157,739 -897,207 -29.37 235,213 -26.72 0.0504
2018-02-13 2017-12-31 13F KLA-TENCOR COMMON 482480100 3,054,946 -3,256,746 -51.60 320,984 -51.53 0.0676
2017-11-09 2017-09-30 13F KLA-TENCOR COMMON 482480100 6,311,692 -349,371 -5.24 662,222 8.64 0.1461
2017-08-09 2017-06-30 13F KLA-TENCOR COMMON 482480100 6,661,063 -46,859 -0.70 609,554 -4.42 0.1393
2017-05-10 2017-03-31 13F KLA-TENCOR COMMON 482480100 6,707,922 -1,584,489 -19.11 637,722 -2.26 0.1457
2017-02-06 2016-12-31 13F KLA-TENCOR COMMON 482480100 8,292,411 -2,580,002 -23.73 652,448 -13.92 0.1568
2016-11-04 2016-09-30 13F KLA-TENCOR COMMON 482480100 10,872,413 -2,651,774 -19.61 757,914 -23.49 0.1865
2016-08-08 2016-06-30 13F KLA-TENCOR COMMON 482480100 13,524,187 2,592,262 23.71 990,649 24.46 0.2470
2016-05-10 2016-03-31 13F KLA-TENCOR COMMON 482480100 10,931,925 141,701 1.31 795,954 6.37 0.2037
2016-02-12 2015-12-31 13F KLA-TENCOR COMMON 482480100 10,790,224 -6,666,614 -38.19 748,303 -14.27 0.1879
2015-11-13 2015-09-30 13F KLA-TENCOR COMMON 482480100 17,456,838 -334,170 -1.88 872,842 -12.72 0.2333
2015-08-14 2015-06-30 13F KLA-TENCOR COMMON 482480100 17,791,008 -3,762,826 -17.46 1,000,035 -20.40 0.2357
2015-05-15 2015-03-31 13F KLA-TENCOR COMMON 482480100 21,553,834 -851,445 -3.80 1,256,374 -20.26 0.2861
2015-02-13 2014-12-31 13F KLA-TENCOR COMMON 482480100 22,405,279 1,717,612 8.30 1,575,543 -3.33 0.3602
2014-12-08 2014-09-30 13F/A-1 KLA-TENCOR CORPORATION+ COMMON 482480100 20,687,667 -3,358,112 -13.97 1,629,774 -6.69 0.3863
2014-11-14 2014-09-30 13F KLA-TENCOR CORPORATION+ COMMON 482480100 20,687,667 1,629,774
2014-09-03 2014-06-30 13F/A-1 KLA-TENCOR CORPORATION+ COMMON 482480100 24,045,779 1,678,117 7.50 1,746,686 12.94 0.4435
2014-08-14 2014-06-30 13F KLA-TENCOR CORPORATION+ COMMON 482480100 24,045,779 1,746,686
2014-05-15 2014-03-31 13F KLA-TENCOR COMMON 482480100 22,367,662 6,540,078 41.32 1,546,499 51.58 0.4267
2014-02-26 2013-12-31 13F/A-1 KLA-TENCOR COMMON 482480100 15,827,584 3,033,740 23.71 1,020,246 31.05 0.2895
2014-02-13 2013-12-31 13F KLA-TENCOR COMMON 482480100 15,827,584 1,020,246
2013-10-31 2013-09-30 13F KLA-TENCOR COMMON 482480100 12,793,844 1,676,893 15.08 778,505 25.66 0.2307
2013-08-13 2013-06-30 13F KLA-TENCOR COMMON 482480100 11,116,951 11,116,951 619,548 0.1975
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
(%)
2026-05-13 2026-03-31 13F/A KLA OPTION Call 37,200 177.61 51,432 215.88 n/a n/a n/a
2026-02-11 2025-12-31 13F KLA OPTION Call 13,400 -6.94 16,282 4.84 n/a n/a n/a
2025-11-26 2025-09-30 13F/A KLA OPTION Call 14,400 140.00 15,532 189.00 n/a n/a n/a
2025-11-07 2025-09-30 13F KLA OPTION Call 14,400 15,532 n/a n/a n/a
2025-08-12 2025-06-30 13F KLA OPTION Call 6,000 5,374 n/a n/a n/a
2025-05-12 2025-03-31 13F KLA OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-12 2024-12-31 13F KLA OPTION Call 1,300 -18.75 819 -33.90 n/a n/a n/a
2024-12-26 2024-09-30 13F/A KLA OPTION Call 1,600 1,239 n/a n/a n/a
2024-11-08 2024-09-30 13F KLA OPTION Call 1,600 1,239 n/a n/a n/a
2024-05-10 2024-03-31 13F KLA OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-12-26 2023-12-31 13F/A KLA OPTION Call 3,400 9.68 1,976 39.06 n/a n/a n/a
2024-02-12 2023-12-31 13F KLA OPTION Call 3,400 1,976 n/a n/a n/a
2023-11-14 2023-09-30 13F KLA OPTION Call 3,100 0.00 1,422 -5.46 n/a n/a n/a
2023-08-11 2023-06-30 13F KLA OPTION Call 3,100 -47.46 1,504 -36.18 n/a n/a n/a
2023-05-18 2023-03-31 13F/A KLA OPTION Call 5,900 18.00 2,355 235,400.00 n/a n/a n/a
2023-05-11 2023-03-31 13F KLA OPTION Call 5,900 2,355 n/a n/a n/a
2023-02-13 2022-12-31 13F KLA OPTION Call 5,000 66.67 2 -99.89 n/a n/a n/a
2022-11-14 2022-09-30 13F KLA OPTION Call 3,000 908 n/a n/a n/a
2020-05-12 2020-03-31 13F KLA OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-11 2019-12-31 13F KLA OPTION Call 17,000 -59.52 3,029 -54.77 n/a n/a n/a
2019-11-12 2019-09-30 13F KLA OPTION Call 42,000 0.00 6,697 35.43 n/a n/a n/a
2019-08-07 2019-06-30 13F KLA-TENCOR OPTION Call 42,000 68.00 4,945 65.66 n/a n/a n/a
2019-05-07 2019-03-31 13F KLA-TENCOR OPTION Call 25,000 2,985 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
(%)
2026-05-13 2026-03-31 13F/A KLA OPTION Put 33,300 29.07 46,040 46.86 n/a n/a n/a
2026-02-11 2025-12-31 13F KLA OPTION Put 25,800 58.28 31,349 78.31 n/a n/a n/a
2025-11-26 2025-09-30 13F/A KLA OPTION Put 16,300 171.67 17,581 227.15 n/a n/a n/a
2025-11-07 2025-09-30 13F KLA OPTION Put 16,300 17,581 n/a n/a n/a
2025-08-12 2025-06-30 13F KLA OPTION Put 6,000 5,374 n/a n/a n/a
2025-05-12 2025-03-31 13F KLA OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-12 2024-12-31 13F KLA OPTION Put 100 -75.00 63 -79.61 n/a n/a n/a
2024-12-26 2024-09-30 13F/A KLA OPTION Put 400 300.00 310 276.83 n/a n/a n/a
2024-11-08 2024-09-30 13F KLA OPTION Put 400 310 n/a n/a n/a
2024-12-26 2024-06-30 13F/A KLA OPTION Put 100 82 n/a n/a n/a
2024-08-12 2024-06-30 13F KLA OPTION Put 100 82 n/a n/a n/a
2024-05-10 2024-03-31 13F KLA OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-12-26 2023-12-31 13F/A KLA OPTION Put 3,100 0.00 1,802 26.81 n/a n/a n/a
2024-02-12 2023-12-31 13F KLA OPTION Put 3,100 1,802 n/a n/a n/a
2023-11-14 2023-09-30 13F KLA OPTION Put 3,100 -34.04 1,422 -37.65 n/a n/a n/a
2023-08-11 2023-06-30 13F KLA OPTION Put 4,700 2,280 n/a n/a n/a
2020-05-12 2020-03-31 13F KLA OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-11 2019-12-31 13F KLA OPTION Put 49,900 0.00 8,891 11.74 n/a n/a n/a
2019-11-12 2019-09-30 13F KLA OPTION Put 49,900 0.00 7,957 35.44 n/a n/a n/a
2019-08-07 2019-06-30 13F KLA-TENCOR OPTION Put 49,900 99.60 5,875 96.82 n/a n/a n/a
2019-05-07 2019-03-31 13F KLA-TENCOR OPTION Put 25,000 2,985 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.