KLA Corporation
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
InstitutionEastern Bank
Latest Disclosed Ownership26,748 shares
Latest Disclosed Value $ 39,383,322
Eastern Bank reports 11.48% decrease in ownership of KLAC / KLA Corporation

On April 7, 2026 - Eastern Bank filed a 13F-HR form disclosing ownership of 26,748 shares of KLA Corporation (US:KLAC) valued at $39,384,023 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 30,217 shares of KLA Corporation. This represents a change in shares of -11.48% during the quarter. The current value of the position is $56,842,442 USD.

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)
2026-04-07 2026-03-31 13F KLA COM NEW 482480100 26,748 -3,469 -11.48 39,383 7.26 0.6167
2026-01-14 2025-12-31 13F KLA COM NEW 482480100 30,217 875 2.98 36,716 16.01 0.5764
2025-10-27 2025-09-30 13F KLA COM NEW 482480100 29,342 2,444 9.09 31,648 31.36 0.5623
2025-07-24 2025-06-30 13F KLA COM NEW 482480100 26,898 -90 -0.33 24,094 31.33 0.4587
2025-05-08 2025-03-31 13F KLA COM NEW 482480100 26,988 454 1.71 18,346 9.73 0.3592
2025-01-13 2024-12-31 13F KLA COM NEW 482480100 26,534 -834 -3.05 16,719 -21.11 0.3107
2024-10-21 2024-09-30 13F KLA COM NEW 482480100 27,368 23,747 655.81 21,194 610.02 0.3797
2024-07-23 2024-06-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 3,621 -6 -0.17 2,986 17.84 0.1206
2024-05-09 2024-03-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 3,627 -822 -18.48 2,534 -2.05 0.1055
2024-01-25 2023-12-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 4,449 -433 -8.87 2,586 15.50 0.1174
2023-10-17 2023-09-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 4,882 19 0.39 2,239 -5.05 0.1112
2023-07-19 2023-06-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 4,863 -1,625 -25.05 2,359 -8.92 0.1121
2023-04-19 2023-03-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 6,488 -698 -9.71 2,590 -4.43 0.1301
2023-01-24 2022-12-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 7,186 -83 -1.14 2,709 23.14 0.1446
2022-10-19 2022-09-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 7,269 12 0.17 2,200 -4.97 0.1256
2022-07-20 2022-06-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 7,257 -738 -9.23 2,315 -20.88 0.1232
2022-04-21 2022-03-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 7,995 -3,091 -27.88 2,926 -38.63 0.1357
2022-01-26 2021-12-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 11,086 -65 -0.58 4,768 27.83 0.2080
2021-10-19 2021-09-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 11,151 288 2.65 3,730 5.91 0.1802
2021-07-20 2021-06-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 10,863 150 1.40 3,522 -0.51 0.1727
2021-04-27 2021-03-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 10,713 455 4.44 3,540 33.28 0.1913
2021-01-20 2020-12-31 13F KLA INSTRUMENTS COMMON STOCKS 482480100 10,258 143 1.41 2,656 35.58 0.1487
2020-10-30 2020-09-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 10,115 396 4.07 1,959 3.65 0.1199
2020-09-01 2020-06-30 13F/A-1 KLA INSTRUMENTS COMMON STOCKS 482480100 9,719 9,719 1,890 0.1229
2020-07-21 2020-06-30 13F KLA INSTRUMENTS COMMON STOCKS 482480100 9,719 1,890
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.