Littelfuse, Inc.
US ˙ NasdaqGS ˙ US5370081045

SecurityLFUS / Littelfuse, Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership3,993 shares
Latest Disclosed Value $ 1,355,024
Us Bancorp \de\ reports 5.33% decrease in ownership of LFUS / Littelfuse, Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 3,993 shares of Littelfuse, Inc. (US:LFUS) valued at $1,355,025 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 4,218 shares of Littelfuse, Inc.. This represents a change in shares of -5.33% during the quarter. The current value of the position is $1,935,207 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)
2026-05-14 2026-03-31 13F LITTELFUSE COM 537008104 3,993 -225 -5.33 1,355 27.11 0.0005
2026-01-30 2025-12-31 13F LITTELFUSE COM 537008104 4,218 -307 -6.78 1,067 -9.04 0.0012
2025-11-12 2025-09-30 13F LITTELFUSE COM 537008104 4,525 -149 -3.19 1,172 10.67 0.0014
2025-07-24 2025-06-30 13F LITTELFUSE COM 537008104 4,674 646 16.04 1,060 33.71 0.0013
2025-05-08 2025-03-31 13F LITTELFUSE COM 537008104 4,028 638 18.82 792 -0.75 0.0011
2025-02-05 2024-12-31 13F LITTELFUSE COM 537008104 3,390 -46 -1.34 799 -12.40 0.0010
2024-10-28 2024-09-30 13F LITTELFUSE COM 537008104 3,436 49 1.45 911 5.32 0.0012
2024-08-07 2024-06-30 13F LITTELFUSE COM 537008104 3,387 -135 -3.83 866 1.41 0.0012
2024-05-08 2024-03-31 13F LITTELFUSE COM 537008104 3,522 -94 -2.60 853 -11.79 0.0012
2024-02-09 2023-12-31 13F LITTELFUSE COM 537008104 3,616 -29 -0.80 968 7.33 0.0014
2023-11-03 2023-09-30 13F LITTELFUSE COM 537008104 3,645 -878 -19.41 902 -31.59 0.0015
2023-08-10 2023-06-30 13F LITTELFUSE COM 537008104 4,523 -60 -1.31 1,318 7.25 0.0021
2023-05-09 2023-03-31 13F LITTELFUSE COMMON STOCK 537008104 4,583 -104 -2.22 1,229 18.99 0.0021
2023-02-13 2022-12-31 13F LITTELFUSE COMMON STOCK 537008104 4,687 -357 -7.08 1,032 2.89 0.0018
2022-10-27 2022-09-30 13F LITTELFUSE COMMON STOCK 537008104 5,044 -229 -4.34 1,003 -25.21 0.0021
2022-08-01 2022-06-30 13F LITTELFUSE COMMON STOCK 537008104 5,273 -393 -6.94 1,341 -5.10 0.0026
2022-05-11 2022-03-31 13F LITTELFUSE COMMON STOCK 537008104 5,666 -71 -1.24 1,413 -21.72 0.0024
2022-02-11 2021-12-31 13F LITTELFUSE COMMON STOCK 537008104 5,737 -124 -2.12 1,805 12.67 0.0028
2021-11-10 2021-09-30 13F LITTELFUSE COMMON STOCK 537008104 5,861 248 4.42 1,602 12.03 0.0030
2021-08-05 2021-06-30 13F LITTELFUSE COMMON STOCK 537008104 5,613 -1,073 -16.05 1,430 -19.16 0.0027
2021-04-28 2021-03-31 13F LITTELFUSE COMMON STOCK 537008104 6,686 -1,306 -16.34 1,769 -13.11 0.0036
2021-02-04 2020-12-31 13F LITTELFUSE COMMON STOCK 537008104 7,992 60 0.76 2,036 44.81 0.0044
2020-11-10 2020-09-30 13F LITTELFUSE COMMON STOCK 537008104 7,932 -81 -1.01 1,406 2.78 0.0034
2020-08-07 2020-06-30 13F LITTELFUSE COMMON STOCK 537008104 8,013 -3,541 -30.65 1,368 -11.23 0.0036
2020-05-13 2020-03-31 13F LITTELFUSE COMMON STOCK 537008104 11,554 118 1.03 1,541 -29.57 0.0048
2020-02-04 2019-12-31 13F LITTELFUSE COMMON STOCK 537008104 11,436 -437 -3.68 2,188 3.94 0.0056
2019-11-08 2019-09-30 13F LITTELFUSE COMMON STOCK 537008104 11,873 -7,191 -37.72 2,105 -37.59 0.0057
2019-08-13 2019-06-30 13F LITTELFUSE COMMON STOCK 537008104 19,064 2,630 16.00 3,373 12.43 0.0094
2019-05-08 2019-03-31 13F LITTELFUSE COMMON STOCK 537008104 16,434 997 6.46 3,000 13.34 0.0087
2019-02-13 2018-12-31 13F LITTELFUSE COMMON STOCK 537008104 15,437 2,330 17.78 2,647 2.04 0.0085
2018-10-31 2018-09-30 13F LITTELFUSE COMMON STOCK 537008104 13,107 2,510 23.69 2,594 7.32 0.0075
2018-08-08 2018-06-30 13F LITTELFUSE COMMON STOCK 537008104 10,597 6,126 137.02 2,417 159.89 0.0074
2018-05-08 2018-03-31 13F LITTELFUSE COMMON STOCK 537008104 4,471 -342 -7.11 930 -2.31 0.0029
2018-02-02 2017-12-31 13F LITTELFUSE COMMON STOCK 537008104 4,813 666 16.06 952 17.10 0.0029
2017-11-13 2017-09-30 13F LITTELFUSE COMMON STOCK 537008104 4,147 138 3.44 813 22.81 0.0026
2017-07-19 2017-06-30 13F LITTELFUSE COMMON STOCK 537008104 4,009 168 4.37 662 7.82 0.0022
2017-05-03 2017-03-31 13F LITTELFUSE COMMON STOCK 537008104 3,841 448 13.20 614 19.22 0.0021
2017-02-08 2016-12-31 13F LITTELFUSE COMMON STOCK 537008104 3,393 -773 -18.55 515 -4.10 0.0019
2016-11-04 2016-09-30 13F LITTELFUSE COMMON STOCK 537008104 4,166 -5,403 -56.46 537 -52.48 0.0020
2016-08-10 2016-06-30 13F LITTELFUSE COMMON STOCK 537008104 9,569 -806 -7.77 1,130 -11.44 0.0043
2016-05-13 2016-03-31 13F LITTELFUSE COMMON STOCK 537008104 10,375 -561 -5.13 1,276 9.06 0.0050
2016-02-10 2015-12-31 13F LITTELFUSE COMMON STOCK 537008104 10,936 1,096 11.14 1,170 30.43 0.0047
2015-11-16 2015-09-30 13F LITTELFUSE COMMON STOCK 537008104 9,840 364 3.84 897 -0.11 0.0038
2015-08-10 2015-06-30 13F LITTELFUSE COMMON STOCK 537008104 9,476 855 9.92 898 4.78 0.0035
2015-05-08 2015-03-31 13F LITTELFUSE COMMON STOCK 537008104 8,621 -1,702 -16.49 857 -14.13 0.0033
2015-02-13 2014-12-31 13F LITTELFUSE COMMON STOCK 537008104 10,323 398 4.01 998 17.97 0.0039
2014-11-14 2014-09-30 13F LITTELFUSE COMMON STOCK 537008104 9,925 891 9.86 846 0.71 0.0034
2014-08-14 2014-06-30 13F LITTELFUSE COMMON STOCK 537008104 9,034 188 2.13 840 1.33 0.0033
2014-05-14 2014-03-31 13F LITTELFUSE COMMON STOCK 537008104 8,846 393 4.65 829 5.61 0.0034
2014-02-13 2013-12-31 13F LITTELFUSE COMMON STOCK 537008104 8,453 -260 -2.98 785 15.27 0.0032
2013-11-07 2013-09-30 13F LITTELFUSE COMMON STOCK 537008104 8,713 1,157 15.31 681 20.74 0.0030
2013-08-09 2013-06-30 13F LITTELFUSE COMMON STOCK 537008104 7,556 7,556 564 0.0026
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.