Littelfuse, Inc.
US ˙ NasdaqGS ˙ US5370081045

SecurityLFUS / Littelfuse, Inc.
InstitutionLogan Capital Management Inc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Logan Capital Management Inc ownership in LFUS / Littelfuse, Inc.

On May 8, 2026 - Logan Capital Management Inc filed a 13F-HR form disclosing ownership of 0 shares of Littelfuse, Inc. (US:LFUS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 11,543 shares of Littelfuse, Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Logan Capital Management Inc has a history of taking positions in derivatives of the underlying security (LFUS) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

LFUS / Littelfuse, Inc. Historical Put/Call Ratio
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)
2026-05-08 2026-03-31 13F LITTELFUSE COM 537008104 0 -11,543 -100.00 0 -100.00
2026-02-12 2025-12-31 13F LITTELFUSE COM 537008104 11,543 38 0.33 2,920 -2.01 0.1229
2025-11-14 2025-09-30 13F LITTELFUSE COM 537008104 11,505 1,085 10.41 2,980 26.12 0.1257
2025-08-01 2025-06-30 13F LITTELFUSE COM 537008104 10,420 -5,324 -33.82 2,362 -23.73 0.1099
2025-05-16 2025-03-31 13F LITTELFUSE COM 537008104 15,744 -1,404 -8.19 3,098 -23.34 0.1408
2025-02-14 2024-12-31 13F LITTELFUSE COM 537008104 17,148 -1,436 -7.73 4,041 -18.04 0.1694
2024-12-06 2024-09-30 13F LITTELFUSE COM 537008104 18,584 -161 -0.86 4,930 2.88 0.2031
2024-08-14 2024-06-30 13F LITTELFUSE COM 537008104 18,745 -58 -0.31 4,791 5.16 0.2066
2024-05-13 2024-03-31 13F LITTELFUSE COM 537008104 18,803 -44 -0.23 4,557 -9.64 0.1951
2024-02-14 2023-12-31 13F LITTELFUSE COM 537008104 18,847 -855 -4.34 5,043 3.49 0.2350
2023-11-14 2023-09-30 13F LITTELFUSE COM 537008104 19,702 -548 -2.71 4,873 -17.41 0.2476
2023-08-14 2023-06-30 13F LITTELFUSE COM 537008104 20,250 5 0.02 5,899 8.70 0.2827
2023-05-12 2023-03-31 13F LITTELFUSE COM 537008104 20,245 65 0.32 5,428 22.15 0.2636
2023-02-14 2022-12-31 13F LITTELFUSE COM 537008104 20,180 -451 -2.19 4,444 8.39 0.2287
2022-11-14 2022-09-30 13F LITTELFUSE COM 537008104 20,631 136 0.66 4,099 -21.28 0.2457
2022-08-11 2022-06-30 13F LITTELFUSE COM 537008104 20,495 185 0.91 5,207 2.80 0.2993
2022-05-16 2022-03-31 13F LITTELFUSE COM 537008104 20,310 -56 -0.27 5,065 -20.97 0.2448
2022-02-14 2021-12-31 13F LITTELFUSE COM 537008104 20,366 -743 -3.52 6,409 11.09 0.2775
2021-11-12 2021-09-30 13F LITTELFUSE COM 537008104 21,109 -115 -0.54 5,769 6.68 0.2687
2021-08-17 2021-06-30 13F/A-1 LITTELFUSE COM 537008104 21,224 293 1.40 5,408 -2.29 0.2516
2021-05-14 2021-03-31 13F LITTELFUSE COM 537008104 20,931 -614 -2.85 5,535 0.87 0.2772
2021-02-12 2020-12-31 13F LITTELFUSE INC COM COM 537008104 21,545 -3,712 -14.70 5,487 22.51 0.2741
2020-11-13 2020-09-30 13F LITTELFUSE INC COM COM 537008104 25,257 -442 -1.72 4,479 2.17 0.2426
2020-08-14 2020-06-30 13F LITTELFUSE INC COM COM 537008104 25,699 -1,355 -5.01 4,384 21.44 0.2531
2020-05-14 2020-03-31 13F LITTELFUSE INC COM COM 537008104 27,054 -791 -2.84 3,610 -32.23 0.2520
2020-02-10 2019-12-31 13F LITTELFUSE INC COM COM 537008104 27,845 -557 -1.96 5,327 5.78 0.2910
2019-11-14 2019-09-30 13F LITTELFUSE INC COM COM 537008104 28,402 -230 -0.80 5,036 -0.57 0.2970
2019-07-24 2019-06-30 13F LITTELFUSE INC COM COM 537008104 28,632 -1,584 -5.24 5,065 -8.14 0.2979
2019-05-15 2019-03-31 13F LITTELFUSE INC COM COM 537008104 30,216 68 0.23 5,514 6.65 0.3392
2019-02-14 2018-12-31 13F LITTELFUSE INC COM COM 537008104 30,148 -811 -2.62 5,170 -15.62 0.4085
2018-11-13 2018-09-30 13F LITTELFUSE INC COM COM 537008104 30,959 -557 -1.77 6,127 -14.81 0.4017
2018-08-14 2018-06-30 13F LITTELFUSE INC COM COM 537008104 31,516 -1,315 -4.01 7,192 5.22 0.4999
2018-05-15 2018-03-31 13F/A-1 LITTELFUSE INC COM COM 537008104 32,831 -1,618 -4.70 6,835 0.29 0.4806
2018-05-14 2018-03-31 13F LITTELFUSE INC COM COM 537008104 32,831 6,835
2018-02-12 2017-12-31 13F LITTELFUSE INC COM COM 537008104 34,449 -3,234 -8.58 6,815 -7.67 0.4772
2017-11-14 2017-09-30 13F LITTELFUSE INC COM COM 537008104 37,683 729 1.97 7,381 21.06 0.5276
2017-08-14 2017-06-30 13F LITTELFUSE INC COM COM 537008104 36,954 -419 -1.12 6,097 2.02 0.4549
2017-05-15 2017-03-31 13F LITTELFUSE INC COM COM 537008104 37,373 3,164 9.25 5,976 15.10 0.4605
2017-02-14 2016-12-31 13F LITTELFUSE INC COM COM 537008104 34,209 549 1.63 5,192 19.74 0.4169
2016-11-09 2016-09-30 13F LITTELFUSE INC COM COM 537008104 33,660 519 1.57 4,336 10.70 0.3540
2016-08-11 2016-06-30 13F LITTELFUSE INC COM COM 537008104 33,141 7,259 28.05 3,917 22.94 0.3305
2016-05-17 2016-03-31 13F LITTELFUSE INC COM COM 537008104 25,882 25,882 3,186 0.2562
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-08 2026-03-31 13F LITTELFUSE COM Put 11,940 4,052 n/a n/a n/a
2021-11-12 2021-09-30 13F LITTELFUSE COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-17 2021-06-30 13F LITTELFUSE COM Put 10,078 2,568 n/a n/a n/a
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.