Littelfuse, Inc.
US ˙ NasdaqGS ˙ US5370081045

SecurityLFUS / Littelfuse, Inc.
InstitutionEarnest Partners Llc
Latest Disclosed Ownership368,463 shares
Latest Disclosed Value $ 125,037,919
Earnest Partners Llc reports 3.99% decrease in ownership of LFUS / Littelfuse, Inc.

On May 15, 2026 - Earnest Partners Llc filed a 13F-HR form disclosing ownership of 368,463 shares of Littelfuse, Inc. (US:LFUS) valued at $125,037,919 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 383,758 shares of Littelfuse, Inc.. This represents a change in shares of -3.99% during the quarter. The current value of the position is $168,512,868 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)
2026-05-15 2026-03-31 13F LITTELFUSE COM 537008104 368,463 -15,295 -3.99 125,038 28.82 0.5155
2026-02-12 2025-12-31 13F LITTELFUSE COM 537008104 383,758 -21,725 -5.36 97,060 -7.58 0.4159
2025-11-14 2025-09-30 13F LITTELFUSE COM 537008104 405,483 -21,745 -5.09 105,024 8.42 0.4556
2025-08-15 2025-06-30 13F LITTELFUSE COM 537008104 427,228 9,718 2.33 96,865 17.93 0.4366
2025-05-14 2025-03-31 13F LITTELFUSE COM 537008104 417,510 -9,946 -2.33 82,141 -18.46 0.3933
2025-02-14 2024-12-31 13F LITTELFUSE COM 537008104 427,456 -3,583 -0.83 100,730 -11.90 0.4502
2024-11-14 2024-09-30 13F LITTELFUSE COM 537008104 431,039 -13,615 -3.06 114,333 0.60 0.4978
2024-08-14 2024-06-30 13F LITTELFUSE COM 537008104 444,654 10,406 2.40 113,649 7.99 0.5313
2024-05-15 2024-03-31 13F LITTELFUSE COM 537008104 434,248 -10,162 -2.29 105,240 -11.49 0.4818
2024-02-14 2023-12-31 13F LITTELFUSE COM 537008104 444,410 -21,534 -4.62 118,906 3.18 0.5937
2023-11-14 2023-09-30 13F LITTELFUSE COM 537008104 465,944 -9,413 -1.98 115,237 -16.78 0.6647
2023-08-07 2023-06-30 13F LITTELFUSE COM 537008104 475,357 -102,745 -17.77 138,476 -10.65 0.7740
2023-05-15 2023-03-31 13F LITTELFUSE COM 537008104 578,102 -3,035 -0.52 154,983 21.11 0.8963
2023-02-14 2022-12-31 13F LITTELFUSE COM 537008104 581,137 -12,850 -2.16 127,966 8.43 0.7843
2022-11-14 2022-09-30 13F LITTELFUSE COM 537008104 593,987 -5,421 -0.90 118,019 -22.50 0.7927
2022-08-12 2022-06-30 13F LITTELFUSE COM 537008104 599,408 -16,054 -2.61 152,274 -0.80 1.0143
2022-05-16 2022-03-31 13F LITTELFUSE COM 537008104 615,462 -15,738 -2.49 153,502 -22.72 0.9091
2022-02-07 2021-12-31 13F LITTELFUSE COM 537008104 631,200 -7,405 -1.16 198,626 13.82 1.1457
2021-11-15 2021-09-30 13F LITTELFUSE COM 537008104 638,605 -15,112 -2.31 174,512 4.77 1.0666
2021-08-16 2021-06-30 13F LITTELFUSE COM 537008104 653,717 1,068 0.16 166,561 -3.49 0.9786
2021-05-17 2021-03-31 13F LITTELFUSE COM 537008104 652,649 56,500 9.48 172,587 13.68 1.0310
2021-02-16 2020-12-31 13F LITTELFUSE COM 537008104 596,149 4,538 0.77 151,815 44.70 1.0488
2020-11-16 2020-09-30 13F LITTELFUSE COM 537008104 591,611 2,401 0.41 104,916 4.36 0.9051
2020-08-13 2020-06-30 13F LITTELFUSE COM 537008104 589,210 5,769 0.99 100,537 29.15 0.9499
2020-05-14 2020-03-31 13F LITTELFUSE COM 537008104 583,441 13,561 2.38 77,843 -28.60 0.8771
2020-02-07 2019-12-31 13F LITTELFUSE COM 537008104 569,880 32,061 5.96 109,018 14.32 0.8568
2019-11-14 2019-09-30 13F LITTELFUSE COM 537008104 537,819 2,418 0.45 95,361 0.68 0.8616
2019-08-13 2019-06-30 13F LITTELFUSE COM 537008104 535,401 4,956 0.93 94,718 -2.15 0.8558
2019-05-15 2019-03-31 13F LITTELFUSE COM 537008104 530,445 6,061 1.16 96,796 7.65 0.9247
2019-02-14 2018-12-31 13F LITTELFUSE COM 537008104 524,384 -10,047 -1.88 89,921 -14.98 0.9792
2018-11-14 2018-09-30 13F LITTELFUSE COM 537008104 534,431 1,091 0.20 105,759 -13.10 0.9474
2018-08-13 2018-06-30 13F LITTELFUSE COM 537008104 533,340 1,028 0.19 121,698 9.82 1.1384
2018-05-15 2018-03-31 13F LITTELFUSE COM 537008104 532,312 8,802 1.68 110,817 7.01 1.0481
2018-02-14 2017-12-31 13F LITTELFUSE COM 537008104 523,510 -61,391 -10.50 103,561 -9.61 0.9916
2017-11-14 2017-09-30 13F LITTELFUSE COM 537008104 584,901 -2,056 -0.35 114,570 18.30 1.1413
2017-08-14 2017-06-30 13F LITTELFUSE COM 537008104 586,957 6,802 1.17 96,848 4.39 1.0173
2017-05-15 2017-03-31 13F LITTELFUSE COM 537008104 580,155 -20,618 -3.43 92,773 1.75 0.9896
2017-02-14 2016-12-31 13F LITTELFUSE COM 537008104 600,773 -55,251 -8.42 91,179 7.90 0.9956
2016-11-14 2016-09-30 13F LITTELFUSE COM 537008104 656,024 -42,397 -6.07 84,502 2.37 0.8863
2016-08-15 2016-06-30 13F LITTELFUSE COM 537008104 698,421 -7,357 -1.04 82,546 -5.00 0.8957
2016-05-16 2016-03-31 13F LITTELFUSE COM 537008104 705,778 -12,177 -1.70 86,888 13.09 0.9105
2016-02-16 2015-12-31 13F LITTELFUSE COM 537008104 717,955 -24,991 -3.36 76,828 13.45 0.7835
2015-11-16 2015-09-30 13F LITTELFUSE COM 537008104 742,946 -34,707 -4.46 67,720 -8.23 0.6653
2015-08-14 2015-06-30 13F LITTELFUSE COM 537008104 777,653 3,089 0.40 73,791 -4.15 0.6445
2015-05-15 2015-03-31 13F LITTELFUSE COM 537008104 774,564 -75,843 -8.92 76,984 -6.36 0.6625
2015-02-17 2014-12-31 13F LITTELFUSE COM 537008104 850,407 -5,217 -0.61 82,209 12.80 0.6747
2014-11-14 2014-09-30 13F Littelfuse COM 537008104 855,624 20,118 2.41 72,882 -6.15 0.6094
2014-08-14 2014-06-30 13F LITTELFUSE COM 537008104 835,506 -10,739 -1.27 77,660 -2.00 0.6183
2014-05-15 2014-03-31 13F Littelfuse COM 537008104 846,245 -49,698 -5.55 79,242 -4.83 0.6356
2014-02-14 2013-12-31 13F Littelfuse COM 537008104 895,943 895,943 83,260 0.6677
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.