KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionMassmutual Trust Co Fsb/adv
Latest Disclosed Ownership489 shares
Latest Disclosed Value $ 720,008
Massmutual Trust Co Fsb/adv reports 3.74% decrease in ownership of KLAC / KLA Corporation

On April 13, 2026 - Massmutual Trust Co Fsb/adv filed a 13F-HR form disclosing ownership of 489 shares of KLA Corporation (MX:KLAC) valued at $720,008 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 508 shares of KLA Corporation. This represents a change in shares of -3.74% during the quarter.

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)
2026-04-13 2026-03-31 13F KLA Common / Ordinary Stock 482480100 489 -19 -3.74 720 16.69 0.0196
2026-01-07 2025-12-31 13F KLA Common / Ordinary Stock 482480100 508 26 5.39 617 18.88 0.0159
2025-10-22 2025-09-30 13F KLA Common / Ordinary Stock 482480100 482 -1 -0.21 520 20.14 0.0132
2025-07-09 2025-06-30 13F KLA Common / Ordinary Stock 482480100 483 -111 -18.69 433 7.20 0.0115
2025-04-01 2025-03-31 13F KLA Common / Ordinary Stock 482480100 594 228 62.30 404 75.22 0.0117
2025-01-16 2024-12-31 13F KLA Common / Ordinary Stock 482480100 366 -79 -17.75 231 -33.14 0.0065
2024-10-02 2024-09-30 13F KLA Common / Ordinary Stock 482480100 445 -32 -6.71 345 -12.47 0.0098
2024-07-02 2024-06-30 13F KLA Common / Ordinary Stock 482480100 477 49 11.45 393 31.88 0.0119
2024-04-09 2024-03-31 13F KLA Common / Ordinary Stock 482480100 428 45 11.75 299 34.23 0.0093
2024-01-03 2023-12-31 13F KLA Common / Ordinary Stock 482480100 383 -14 -3.53 223 21.98 0.0075
2023-10-04 2023-09-30 13F KLA Common / Ordinary Stock 482480100 397 168 73.36 182 63.96 0.0067
2023-08-02 2023-06-30 13F KLA Common / Ordinary Stock 482480100 229 118 106.31 111 152.27 0.0040
2023-04-11 2023-03-31 13F KLA Common / Ordinary Stock 482480100 111 -16 -12.60 44 0.0017
2023-01-06 2022-12-31 13F KLA Common / Ordinary Stock 482480100 127 -90 -41.47 0 0.0020
2022-10-07 2022-09-30 13F KLA Common / Ordinary Stock 482480100 217 -25 -10.33 0 0.0030
2022-07-07 2022-06-30 13F KLA Common / Ordinary Stock 482480100 242 87 56.13 0 0.0033
2022-04-08 2022-03-31 13F KLA Common / Ordinary Stock 482480100 155 62 66.67 0 0.0022
2022-02-09 2021-12-31 13F KLA Common / Ordinary Stock 482480100 93 59 173.53 0 0.0015
2021-11-12 2021-09-30 13F KLA Common / Ordinary Stock 482480100 34 0 0.00 0 0.0005
2021-08-16 2021-06-30 13F KLA Common / Ordinary Stock 482480100 34 21 161.54 0 0.0005
2021-05-17 2021-03-31 13F KLA Common / Ordinary Stock 482480100 13 -254 -95.13 0 0.0002
2021-02-16 2020-12-31 13F KLA Common / Ordinary Stock 482480100 267 9 3.49 0 0.0035
2020-11-13 2020-09-30 13F KLA Common / Ordinary Stock 482480100 258 -8 -3.01 0 -100.00 0.0029
2020-08-13 2020-06-30 13F KLA Common / Ordinary Stock 482480100 266 8 3.10 52 40.54 0.0034
2020-05-15 2020-03-31 13F KLA Common / Ordinary Stock 482480100 258 0 0.00 37 -19.57 0.0030
2020-05-15 2019-12-31 13F KLA Common / Ordinary Stock 482480100 258 258 46 0.0028
2016-05-10 2016-03-31 13F KLA-TENCOR common 482480100 0 0 0 0.0000
2015-11-04 2015-09-30 13F KLA-TENCOR common 482480100 0 -53 -100.00 0 -100.00
2015-07-29 2015-06-30 13F KLA-TENCOR common 482480100 53 53 4 0.0009
2014-11-04 2014-09-30 13F KLA-TENCOR COMMON STOCK 482480100 0 -53 -100.00 0 -100.00
2014-07-09 2014-06-30 13F KLA-TENCOR COMMON STOCK 482480100 53 0 0.00 4 0.00 0.0015
2014-05-15 2014-03-31 13F KLA-TENCOR common 482480100 53 -100 -65.36 4 -66.67 0.0021
2014-02-14 2013-12-31 13F/A-1 KLA-TENCOR COMMON STOCK 482480100 153 153 10 0.0091
2014-02-13 2013-12-31 13F KLA-TENCOR COMMON STOCK 482480100 153 10 0.0091
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.