KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionLord, Abbett & Co. Llc
Latest Disclosed Ownership4,218 shares
Latest Disclosed Value $ 6,211
Lord, Abbett & Co. Llc reports 16.94% increase in ownership of KLAC / KLA Corporation

On May 14, 2026 - Lord, Abbett & Co. Llc filed a 13F-HR form disclosing ownership of 4,218 shares of KLA Corporation (MX:KLAC) valued at $6,211 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,607 shares of KLA Corporation. This represents a change in shares of 16.94% 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)
2026-05-14 2026-03-31 13F KLA COM 482480100 4,218 611 16.94 6 50.00 0.0203
2026-02-13 2025-12-31 13F KLA COM 482480100 3,607 -28,261 -88.68 4 -88.24 0.0134
2025-11-13 2025-09-30 13F KLA COM 482480100 31,868 -42,421 -57.10 34 -48.48 0.1023
2025-08-14 2025-06-30 13F KLA COM 482480100 74,289 26,611 55.81 67 106.25 0.2141
2025-05-13 2025-03-31 13F KLA COM 482480100 47,678 11,427 31.52 32 45.45 0.1155
2025-02-14 2024-12-31 13F KLA CORP COM COM 482480100 36,251 -102,654 -73.90 23 -79.44 0.0722
2024-12-13 2024-09-30 13F/A-1 KLA COM 482480100 138,905 -112,418 -44.73 108 -48.31 0.3423
2024-11-14 2024-09-30 13F KLA COM 482480100 138,905 -112,418 108 0.3468
2024-10-07 2024-06-30 13F/A-1 KLA COM 482480100 251,323 31,148 14.15 207 35.29 0.6779
2024-08-14 2024-06-30 13F KLA COM 482480100 251,323 31,148 207 0.6921
2024-10-07 2024-03-31 13F/A-1 KLA COM 482480100 220,175 -1,172 -0.53 154 19.53 0.4965
2024-05-09 2024-03-31 13F KLA COM 482480100 220,175 -1,172 154 0.5055
2024-10-07 2023-12-31 13F/A-1 KLA COM 482480100 221,347 53,121 31.58 129 66.23 0.4515
2024-02-12 2023-12-31 13F KLA COM 482480100 221,347 53,121 129 0.4621
2024-10-07 2023-09-30 13F/A-1 KLA COM 482480100 168,226 -44,936 -21.08 77 -25.24 0.2869
2023-11-13 2023-09-30 13F KLA COM 482480100 168,226 -44,936 77 0.2891
2024-10-07 2023-06-30 13F/A-1 KLA COM 482480100 213,162 -96,690 -31.21 103 -16.26 0.3559
2023-08-14 2023-06-30 13F KLA COM 482480100 213,162 -96,690 103 0.3560
2024-10-07 2023-03-31 13F/A-1 KLA COM 482480100 309,852 -74,747 -19.44 124 -15.17 0.4459
2023-05-12 2023-03-31 13F KLA COM 482480100 309,852 -74,747 124 0.4466
2024-10-07 2022-12-31 13F/A-1 KLA COM 482480100 384,599 -54,497 -12.41 145 -99.89 0.5182
2023-02-10 2022-12-31 13F KLA COM 482480100 384,599 -54,497 145 0.5194
2022-11-14 2022-09-30 13F KLA CORP COM COM 482480100 439,096 -17,072 -3.74 132,884 -8.71 0.4853
2022-08-12 2022-06-30 13F KLA CORP COM COM 482480100 456,168 84,451 22.72 145,556 6.97 0.5146
2022-05-13 2022-03-31 13F KLA CORP COM COM 482480100 371,717 -64,596 -14.80 136,071 -27.49 0.3627
2022-02-11 2021-12-31 13F KLA CORP COM COM 482480100 436,313 24,341 5.91 187,662 36.17 0.4276
2021-11-09 2021-09-30 13F KLA CORP COM COM 482480100 411,972 213,732 107.81 137,813 114.42 0.3297
2021-08-11 2021-06-30 13F KLA CORP COM COM 482480100 198,240 42,294 27.12 64,271 24.74 0.1550
2021-05-11 2021-03-31 13F KLA CORP COM COM 482480100 155,946 155,946 51,524 0.1313
2018-02-14 2017-12-31 13F KLA-TENCOR CORP COM COM 482480100 0 -57,373 -100.00 0 -100.00
2017-11-14 2017-09-30 13F KLA-TENCOR CORP COM COM 482480100 57,373 -99,150 -63.35 6,082 -57.54 0.0178
2017-08-24 2017-06-30 13F/A-1 KLA-TENCOR CORP COM COM 482480100 156,523 -130,953 -45.55 14,323 -47.59 0.0425
2017-08-14 2017-06-30 13F KLA-TENCOR CORP COM COM 482480100 156,523 -130,953 14,323
2017-05-15 2017-03-31 13F KLA-TENCOR CORP COM COM 482480100 287,476 287,476 27,330 0.0818
2017-02-14 2016-12-31 13F KLA-TENCOR CORP COM COM 482480100 0 -238,300 -100.00 0 -100.00
2016-11-10 2016-09-30 13F KLA-TENCOR CORP COM COM 482480100 238,300 60,700 34.18 16,612 27.70 0.0507
2016-08-12 2016-06-30 13F KLA-TENCOR CORP COM COM 482480100 177,600 177,600 0.00 13,009 0.0407
2015-11-16 2015-09-30 13F KLA-TENCOR CORP COM COM 482480100 0 -341,400 -100.00 0 -100.00
2015-08-14 2015-06-30 13F KLA-TENCOR CORP COM COM 482480100 341,400 15,600 4.79 19,190 1.05 0.0506
2015-05-15 2015-03-31 13F KLA-TENCOR CORP COM COM 482480100 325,800 73,400 29.08 18,991 7.00 0.0481
2015-02-13 2014-12-31 13F KLA-Tencor COM 482480100 252,400 -73,200 -22.48 17,749 -30.81 0.0450
2014-11-14 2014-09-30 13F KLA-Tencor COM 482480100 325,600 325,600 2,590.91 25,651 3,705.79 0.0643
2013-11-14 2013-09-30 13F KLA-Tencor COM 482480100 0 -12,100 -100.00 0 -100.00
2013-08-14 2013-06-30 13F KLA-Tencor COM 482480100 12,100 12,100 674 0.0016
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.