LITTELFUSE INC (LFUS) Stock Institutional Trading Activity


LITTELFUSE INC (LFUS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Mairs & Power Growth Fund, Vulcan Value Partners, Ariel Appreciation Fund, and Giverny Capital. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2022Mairs & Power Growth FundBuy3,451894,287$196,921,997
Q3 2022Ariel Appreciation FundSell-8,155384,437$76,384
Q3 2022Vulcan Value PartnersBuy116,222471,233$93,629
Q3 2022Renaissance Technologies LLCBuy5,50031,734$6,305
Q3 2022Mairs & Power Growth FundBuy30,324890,836$177,000
Q3 2022Giverny CapitalBuy74969,928$13,894
Q2 2022Ariel Appreciation FundBuy46,036392,592$99,735
Q2 2022Renaissance Technologies LLCSell-43,50026,234$6,664
Q2 2022Vulcan Value PartnersSell-7,244355,011$90,187
Q2 2022Mairs & Power Growth FundBuy24,965860,512$218,604
Q2 2022Giverny CapitalBuy66,40969,179$17,574
Q1 2022Ariel Appreciation FundBuy49,100346,556$86,434
Q1 2022Vulcan Value PartnersBuy96,607362,255$90,350
Q1 2022Renaissance Technologies LLCBuy23,10069,734$17,392
Q1 2022Mairs & Power Growth FundBuy32,923835,547$208,394
Q4 2021Ariel Appreciation FundSell-49,852297,456$93,604
Q4 2021Renaissance Technologies LLCBuy16,27046,634$14,675
Q4 2021Vulcan Value PartnersSell-7,452265,648$83,594
Q4 2021Mairs & Power Growth FundBuy28,783802,624$252,570
Q3 2021Ariel Appreciation FundSell-18,419347,308$94,909
Q3 2021Giverny CapitalSell-182,770$757
Q3 2021Renaissance Technologies LLCBuy9,33030,364$8,298
Q3 2021Vulcan Value PartnersBuy96,516273,100$74,630
Q3 2021Mairs & Power Growth FundBuy19,676773,841$211,468
Q2 2021Ariel Appreciation FundBuy7,584365,727$93,184
Q2 2021Renaissance Technologies LLCBuy19,83421,034$5,359
Q2 2021Vulcan Value PartnersBuy35,804176,584$44,992
Q2 2021Mairs & Power Growth FundBuy16,977754,165$192,154
Q1 2021Ariel Appreciation FundSell-5,185358,143$94,707
Q1 2021Vulcan Value PartnersSell-17,870140,780$37,228

Frequently asked questions about LFUS activity

  • Which institutional owners are buying LFUS?

    Institutional owners buying LFUS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in LFUS activity?

    "Buy" means an investor increased their reported position in LFUS compared to the prior reporting period. This reflects growing exposure to LITTELFUSE INC (LFUS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in LFUS increasing?

    Institutional interest in LFUS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.