KLA Corporation
US ˙ NasdaqGS ˙ US4824801009

SecurityKLAC / KLA Corporation
InstitutionBRYN MAWR TRUST Co
Latest Disclosed Ownership10,320 shares
Latest Disclosed Value $ 15,195,272
BRYN MAWR TRUST Co reports 7.62% decrease in ownership of KLAC / KLA Corporation

On April 30, 2026 - BRYN MAWR TRUST Co filed a 13F-HR form disclosing ownership of 10,320 shares of KLA Corporation (US:KLAC) valued at $15,195,271 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 11,171 shares of KLA Corporation. This represents a change in shares of -7.62% during the quarter. The current value of the position is $19,909,344 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)
2026-04-30 2026-03-31 13F KLA COM NEW 482480100 10,320 -851 -7.62 15,195 11.95 0.2699
2026-02-12 2025-12-31 13F KLA COM NEW 482480100 11,171 -469 -4.03 13,574 8.12
2025-11-20 2025-09-30 13F/A-1 KLA COM NEW 482480100 11,640 -5,254 -31.10 12,555 -17.04 0.3026
2025-10-28 2025-09-30 13F KLA COM NEW 482480100 16,326 -568 17,609 0.1951
2025-07-28 2025-06-30 13F KLA COM NEW 482480100 16,894 -1,098 -6.10 15,133 23.73 0.2692
2025-05-08 2025-03-31 13F KLA COM NEW 482480100 17,992 -1,276 -6.62 12,231 0.73 0.2285
2025-01-28 2024-12-31 13F KLA COM NEW 482480100 19,268 654 3.51 12,141 -15.77 0.2185
2024-11-25 2024-09-30 13F KLA COM NEW 482480100 18,614 -5,914 -24.11 14,415 -28.72 0.2588
2024-08-08 2024-06-30 13F KLA COMMON STOCK 482480100 24,528 -837 -3.30 20,224 14.13 0.7755
2024-05-15 2024-03-31 13F KLA COMMON STOCK 482480100 25,365 -834 -3.18 17,719 47.46 0.6798
2023-11-15 2023-09-30 13F KLA COMMON STOCK 482480100 26,199 875 3.46 12,016 100,033.33 0.5288
2023-08-11 2023-06-30 13F KLA COMMON STOCK 482480100 25,324 9,959 64.82 12 100.00 0.5119
2023-05-15 2023-03-31 13F KLA COMMON STOCK 482480100 15,365 -257 -1.65 6 20.00 0.2710
2023-02-13 2022-12-31 13F KLA COMMON STOCK 482480100 15,622 0 0.00 6 -99.89 0.2675
2022-11-14 2022-09-30 13F KLA COMMON STOCK 482480100 15,622 0 0.00 4,728 -5.16 0.2309
2022-08-11 2022-06-30 13F KLA COMMON STOCK 482480100 15,622 0 0.00 4,985 -12.82 0.2293
2022-05-16 2022-03-31 13F KLA COMMON STOCK 482480100 15,622 0 0.00 5,718 -14.90 0.2233
2022-02-10 2021-12-31 13F KLA COMMON STOCK 482480100 15,622 1,950 14.26 6,719 46.93 0.2416
2021-10-26 2021-09-30 13F KLA COMMON STOCK 482480100 13,672 0 0.00 4,573 3.18 0.1766
2021-07-29 2021-06-30 13F KLA COMMON STOCK 482480100 13,672 0 0.00 4,432 -1.88 0.1691
2021-04-23 2021-03-31 13F KLA COMMON STOCK 482480100 13,672 -2,120 -13.42 4,517 10.47 0.1804
2021-02-11 2020-12-31 13F KLA COMMON STOCK 482480100 15,792 -2,295 -12.69 4,089 16.70 0.1718
2020-11-12 2020-09-30 13F KLA COMMON STOCK 482480100 18,087 -650 -3.47 3,504 -3.84 0.1624
2020-08-13 2020-06-30 13F KLA COMMON STOCK 482480100 18,737 -33 -0.18 3,644 35.06 0.1792
2020-05-08 2020-03-31 13F KLA COMMON STOCK 482480100 18,770 14,500 339.58 2,698 254.53 0.1586
2020-02-11 2019-12-31 13F KLA COMMON STOCK 482480100 4,270 0 0.00 761 11.75 0.0386
2019-10-24 2019-09-30 13F KLA COMMON STOCK 482480100 4,270 0 0.00 681 34.85 0.0372
2019-08-15 2019-06-30 13F KLA COMMON STOCK 482480100 4,270 0 0.00 505 -0.98 0.0273
2019-05-15 2019-03-31 13F KLA-TENCOR COMMON STOCK 482480100 4,270 0 0.00 510 33.51 0.0278
2019-08-28 2018-12-31 13F/A-1 KLA COMMON STOCK 482480100 4,270 0 0.00 382 -11.98 0.0232
2019-02-15 2018-12-31 13F KLA-TENCOR COMMON STOCK 482480100 4,270 0 382
2019-08-28 2018-09-30 13F/A-1 KLA COMMON STOCK 482480100 4,270 -450 -9.53 434 -10.33 0.0228
2018-11-15 2018-09-30 13F KLA-TENCOR COMMON STOCK 482480100 4,270 -450 434 0.0229
2019-08-27 2018-06-30 13F/A-1 KLA COMMON STOCK 482480100 4,720 0 0.00 484 -5.84 0.0270
2018-08-14 2018-06-30 13F KLA-TENCOR COMMON STOCK 482480100 4,720 0 484
2019-08-27 2018-03-31 13F/A-1 KLA COMMON STOCK 482480100 4,720 -250 -5.03 514 -1.72 0.0294
2018-05-15 2018-03-31 13F KLA-TENCOR COMMON STOCK 482480100 4,720 -250 514
2019-08-27 2017-12-31 13F/A-1 KLA COMMON STOCK 482480100 4,970 -100 -1.97 523 -2.61 0.0286
2018-02-15 2017-12-31 13F KLA-TENCOR COMMON STOCK 482480100 4,970 -100 523 0.0286
2019-08-27 2017-09-30 13F/A-1 KLA COMMON STOCK 482480100 5,070 -515 -9.22 537 5.09 0.0307
2017-11-14 2017-09-30 13F KLA-TENCOR COMMON STOCK 482480100 5,070 -515 537 0.0305
2017-08-11 2017-06-30 13F KLA-TENCOR COMMON STOCK 482480100 5,585 0 0.00 511 -3.77 0.0304
2017-05-12 2017-03-31 13F KLA-TENCOR COMMON STOCK 482480100 5,585 -500 -8.22 531 10.86 0.0321
2017-02-03 2016-12-31 13F KLA-TENCOR COMMON STOCK 482480100 6,085 -610 -9.11 479 2.57 0.0300
2016-11-10 2016-09-30 13F KLA-TENCOR COMMON STOCK 482480100 6,695 0 0.00 467 -4.69 0.0294
2016-08-10 2016-06-30 13F KLA-TENCOR COMMON STOCK 482480100 6,695 -875 -11.56 490 -11.07 0.0311
2016-05-03 2016-03-31 13F KLA-TENCOR COMMON STOCK 482480100 7,570 -657 -7.99 551 -3.33 0.0354
2016-02-12 2015-12-31 13F KLA-TENCOR COMMON STOCK 482480100 8,227 -190 -2.26 570 35.39 0.0357
2015-11-09 2015-09-30 13F KLA-TENCOR COMMON STOCK 482480100 8,417 -625 -6.91 421 -17.13 0.0270
2015-08-25 2015-06-30 13F KLA-TENCOR COMMON STOCK 482480100 9,042 -4,208 -31.76 508 -34.20 0.0295
2015-05-12 2015-03-31 13F KLA-TENCOR COMMON STOCK 482480100 13,250 -270 -2.00 772 -18.82 0.0439
2015-02-17 2014-12-31 13F KLA-TENCOR COMMON STOCK 482480100 13,520 -465 -3.32 951 -13.62 0.0534
2014-11-14 2014-09-30 13F KLA-TENCOR COMMON 482480100 13,985 0 0.00 1,101 8.37 0.0624
2014-08-07 2014-06-30 13F KLA-TENCOR COMMON 482480100 13,985 0 0.00 1,016 5.07 0.0560
2014-05-13 2014-03-31 13F KLA-TENCOR COMMON 482480100 13,985 -2,500 -15.17 967 -9.03 0.0541
2014-02-14 2013-12-31 13F KLA-TENCOR COMMON 482480100 16,485 -155 -0.93 1,063 5.04 0.0598
2013-11-06 2013-09-30 13F KLA-TENCOR COMMON 482480100 16,640 455 2.81 1,012 12.20 0.0624
2013-08-09 2013-06-30 13F KLA-TENCOR COMMON 482480100 16,185 -794 -4.68 902 0.67 0.0583
2013-05-20 2013-03-31 13F KLA-TENCOR COMMON STOCK 482480100 16,979 16,979 896 0.0578
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.