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
Q3 2019Olstein Capital ManagementBuy6,70028,000$4,965
Q3 2019Giverny CapitalBuy551114,671$20,332
Q2 2019Mairs & Power Growth FundBuy82,199463,507$81,999
Q2 2019Ariel Appreciation FundBuy614442,402$78,265
Q2 2019Renaissance Technologies LLCSell-21,0341,600$283
Q2 2019Polen Capital ManagementBuy3254,605$815
Q2 2019Olstein Capital ManagementBuy12,30021,300$3,768
Q2 2019Giverny CapitalBuy5,330114,120$20,189
Q1 2019Mairs & Power Growth FundBuy108,805381,308$69,581
Q1 2019Ariel Appreciation FundSell-2,931441,788$80,617
Q1 2019Polen Capital ManagementBuy3294,280$781
Q1 2019Renaissance Technologies LLCSell-67,40022,634$4,130
Q1 2019Giverny CapitalBuy7,508108,790$19,852
Q4 2018Mairs & Power Growth FundBuy103,614272,503$46,729
Q4 2018Ariel Appreciation FundBuy210,573444,719$76,260
Q4 2018Polen Capital ManagementBuy1,2273,951$678
Q4 2018Renaissance Technologies LLCBuy2,10090,034$15,439
Q4 2018Giverny CapitalSell-817101,282$17,368
Q3 2018Mairs & Power Growth FundBuy88,539168,889$33,421
Q3 2018Ariel Appreciation FundBuy11,345234,146$46,335
Q3 2018Polen Capital ManagementBuy2312,724$539
Q3 2018Renaissance Technologies LLCBuy82,64287,934$17,401
Q3 2018Giverny CapitalSell-2,874102,099$20,204
Q2 2018Mairs & Power Growth FundBuy5,15080,350$18,334
Q2 2018Ariel Appreciation FundBuy1,950222,801$50,839
Q2 2018Polen Capital ManagementBuy2682,493$569
Q2 2018Giverny CapitalBuy103,450104,973$23,953
Q1 2018Polen Capital ManagementBuy6632,225$463
Q1 2018Ariel Appreciation FundSell-37,069220,851$45,977
Q1 2018Mairs & Power Growth FundBuy75,20075,200$15,655

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.