Littelfuse, Inc.
US ˙ NasdaqGS ˙ US5370081045

SecurityLFUS / Littelfuse, Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership5,520 shares
Latest Disclosed Value $ 1,873,212
Quadrant Capital Group Llc reports 2.22% increase in ownership of LFUS / Littelfuse, Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 5,520 shares of Littelfuse, Inc. (US:LFUS) valued at $1,873,212 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 5,400 shares of Littelfuse, Inc.. This represents a change in shares of 2.22% during the quarter. The current value of the position is $2,524,517 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)
2026-05-13 2026-03-31 13F/A-1 LITTELFUSE COM 537008104 5,520 120 2.22 1,873 37.22 0.0560
2026-05-11 2026-03-31 13F LITTELFUSE COM 537008104 5,520 120 49 0.0369
2026-02-12 2025-12-31 13F LITTELFUSE COM 537008104 5,400 435 8.76 1,366 6.23 0.0413
2025-11-13 2025-09-30 13F LITTELFUSE COM 537008104 4,965 27 0.55 1,286 14.83 0.0418
2025-08-13 2025-06-30 13F LITTELFUSE COM 537008104 4,938 3,263 194.81 1,120 240.12 0.0403
2025-05-13 2025-03-31 13F LITTELFUSE COM 537008104 1,675 636 61.21 330 34.84 0.0122
2025-02-13 2024-12-31 13F LITTELFUSE COM 537008104 1,039 -236 -18.51 245 -27.81 0.0169
2024-11-12 2024-09-30 13F LITTELFUSE COM 537008104 1,275 -81 -5.97 338 -2.31 0.0235
2024-08-12 2024-06-30 13F LITTELFUSE COM 537008104 1,356 238 21.29 347 28.15 0.0257
2024-05-15 2024-03-31 13F LITTELFUSE COM 537008104 1,118 -78 -6.52 271 -15.62 0.0214
2024-02-08 2023-12-31 13F LITTELFUSE COM 537008104 1,196 -20 -1.64 320 6.67 0.0275
2023-11-14 2023-09-30 13F LITTELFUSE COM 537008104 1,216 -23 -1.86 301 -16.67 0.0301
2023-08-10 2023-06-30 13F LITTELFUSE COM 537008104 1,239 -46 -3.58 361 4.65 0.0358
2023-05-11 2023-03-31 13F LITTELFUSE COM 537008104 1,285 115 9.83 344 33.85 0.0359
2023-02-13 2022-12-31 13F LITTELFUSE COM 537008104 1,170 266 29.42 258 42.78 0.0292
2022-11-10 2022-09-30 13F LITTELFUSE COM 537008104 904 -68 -7.00 180 -27.13 0.0238
2022-08-09 2022-06-30 13F LITTELFUSE COM 537008104 972 -63 -6.09 247 -4.26 0.0332
2022-05-06 2022-03-31 13F LITTELFUSE COM 537008104 1,035 59 6.05 258 -15.96 0.0312
2022-02-01 2021-12-31 13F LITTELFUSE COM 537008104 976 442 82.77 307 110.27 0.0366
2021-11-12 2021-09-30 13F LITTELFUSE COM 537008104 534 133 33.17 146 43.14 0.0204
2021-08-09 2021-06-30 13F LITTELFUSE COM 537008104 401 -40 -9.07 102 -12.82 0.0148
2021-05-12 2021-03-31 13F LITTELFUSE COM 537008104 441 73 19.84 117 24.47 0.0190
2021-02-16 2020-12-31 13F LITTELFUSE COM 537008104 368 8 2.22 94 46.88 0.0175
2020-11-13 2020-09-30 13F LITTELFUSE COM 537008104 360 -310 -46.27 64 -43.86 0.0139
2020-08-13 2020-06-30 13F LITTELFUSE COM 537008104 670 49 7.89 114 35.71 0.0252
2020-05-15 2020-03-31 13F Littelfuse Com 537008104 621 457 278.66 84 211.11 0.0141
2020-03-19 2019-12-31 13F/A-1 Littelfuse Com 537008104 164 0 0.00 27 3.85 0.0033
2020-02-03 2019-12-31 13F Littelfuse Com 537008104 164 0 27 91.2365
2019-10-24 2019-09-30 13F Littelfuse COM 537008104 164 -9 -5.20 26 0.00 0.0040
2019-07-24 2019-06-30 13F Littelfuse COM 537008104 173 -283 -62.06 26 -65.79 0.0041
2019-04-29 2019-03-31 13F Littelfuse COM 537008104 456 283 163.58 76 192.31 0.0134
2019-01-17 2018-12-31 13F LITTELFUSE COM 537008104 173 16 10.19 26 4.00 0.0069
2018-10-29 2018-09-30 13F LITTELFUSE COM 537008104 157 0 0.00 25 -19.35 0.0071
2018-08-08 2018-06-30 13F LITTELFUSE COM 537008104 157 -17 -9.77 31 3.33 0.0109
2018-05-10 2018-03-31 13F LITTELFUSE COM 537008104 174 111 176.19 30 200.00 0.0109
2018-01-31 2017-12-31 13F Littelfuse COM 537008104 63 0 0.00 10 0.00 0.0040
2017-10-13 2017-09-30 13F Littelfuse COM 537008104 63 10 18.87 10 66.67 0.0041
2017-08-14 2017-06-30 13F Littelfuse COM 537008104 53 0 0.00 6 -25.00 0.0027
2017-04-10 2017-03-31 13F Littelfuse COM 537008104 53 0 0.00 8 14.29 0.0035
2017-01-11 2016-12-31 13F Littelfuse COM 537008104 53 0 0.00 7 40.00 0.0035
2016-10-25 2016-09-30 13F Littelfuse COM 537008104 53 0 0.00 5 0.00 0.0033
2016-07-28 2016-06-30 13F Littelfuse COM 537008104 53 0 0.00 5 0.00 0.0034
2016-04-27 2016-03-31 13F Littelfuse COM 537008104 53 15 39.47 5 25.00 0.0032
2016-01-28 2015-12-31 13F Littelfuse COM 537008104 38 -538 -93.40 4 -92.16 0.0028
2015-10-28 2015-09-30 13F Littelfuse COM 537008104 576 0 0.00 51 -5.56 0.0352
2015-08-12 2015-06-30 13F Littelfuse COM 537008104 576 576 54 0.0344
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.