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 2025Vulcan Value PartnersSell-4,691192,212$48,614
Q4 2025Renaissance Technologies LLCBuy60,55166,814$16,898,597
Q4 2025Giverny CapitalBuy32881,585$20,634,478
Q4 2025Ariel Appreciation FundSell-3,875221,498$56,021,274
Q4 2025Mairs & Power Growth FundSell-34,987778,951$197,012,287
Q3 2025Sequoia Financial AdvisorsBuy321,914$495,750
Q3 2025Renaissance Technologies LLCSell-25,1716,263$1,622,180
Q3 2025Giverny CapitalBuy14581,257$21,046,376
Q3 2025Vulcan Value PartnersSell-59,857196,903$50,999,929
Q3 2025Ariel Appreciation FundSell-68,628225,373$58,373,860
Q3 2025Mairs & Power Growth FundSell-52,526813,938$210,818,081
Q2 2025Sequoia Financial AdvisorsBuy1,8821,882$426,709
Q2 2025Giverny CapitalBuy60881,112$18,390,524
Q2 2025Vulcan Value PartnersBuy29,205256,760$58,215,289
Q2 2025Ariel Appreciation FundSell-11,391294,001$66,658,847
Q2 2025Mairs & Power Growth FundSell-16,963866,464$196,453,383
Q1 2025Renaissance Technologies LLCBuy17,50031,434$6,184,325
Q1 2025Giverny CapitalSell-11180,504$15,838,357
Q1 2025Vulcan Value PartnersBuy27,462227,555$44,769,078
Q1 2025Ariel Appreciation FundBuy7,327305,392$60,082,822
Q1 2025Mairs & Power Growth FundBuy8,046883,427$173,805,428
Q4 2024Giverny CapitalBuy1,60080,615$18,996,925
Q4 2024Vulcan Value PartnersSell-16,851200,093$47,151,889
Q4 2024Ariel Appreciation FundSell-19,206298,065$70,239,017
Q4 2024Mairs & Power Growth FundBuy14,397875,381$206,283,533
Q3 2024Giverny CapitalBuy32379,015$20,958,729
Q3 2024Vulcan Value PartnersSell-24,421216,944$57,544,428
Q3 2024Ariel Appreciation FundSell-11,650317,271$84,156,133
Q3 2024Mairs & Power Growth FundBuy12,058860,984$228,376,006
Q2 2024Ariel Appreciation FundSell-18,302328,921$84,068,918

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.