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 2017Ariel Appreciation FundSell-39,635257,920$51,022
Q4 2017Giverny CapitalBuy1,5231,523$301
Q4 2017Polen Capital ManagementBuy1,5621,562$309
Q3 2017Ariel Appreciation FundSell-89,961297,555$58,285
Q3 2017Renaissance Technologies LLCSell-28,8005,292$1,037
Q2 2017Ariel Appreciation FundSell-51,484387,516$63,940
Q2 2017Renaissance Technologies LLCSell-78,90034,092$5,625
Q1 2017Ariel Appreciation FundSell-16,005439,000$70,200
Q4 2016Ariel Appreciation FundSell-139,029455,005$69,056
Q3 2016Ariel Appreciation FundSell-56,999594,034$76,518
Q3 2016Renaissance Technologies LLCSell-174,200112,992$14,554
Q2 2016Ariel Appreciation FundSell-79,623651,033$76,946
Q2 2016Renaissance Technologies LLCBuy5,900287,192$33,943
Q1 2016Ariel Appreciation FundSell-98,585730,656$89,951
Q1 2016Renaissance Technologies LLCBuy66,800281,292$34,630
Q4 2015Ariel Appreciation FundSell-26,138829,241$88,737
Q4 2015Renaissance Technologies LLCBuy109,600214,492$22,953
Q3 2015Ariel Appreciation FundBuy22,251855,379$77,968
Q3 2015Renaissance Technologies LLCBuy51,200104,892$9,561
Q2 2015Ariel Appreciation FundSell-28,655833,128$79,056
Q2 2015Renaissance Technologies LLCBuy39,49253,692$5,095
Q1 2015Ariel Appreciation FundSell-21,627861,783$85,653
Q1 2015Renaissance Technologies LLCSell-40,79214,200$1,411
Q4 2014Ariel Appreciation FundSell-365883,410$85,399
Q4 2014Renaissance Technologies LLCSell-1,60054,992$5,316
Q3 2014Ariel Appreciation FundBuy56,276883,775$75,280
Q2 2014Ariel Appreciation FundSell-104,840827,499$76,916
Q2 2014Renaissance Technologies LLCSell-48,50056,592$5,260
Q1 2014Ariel Appreciation FundSell-69,535932,339$87,304
Q1 2014Renaissance Technologies LLCSell-34,200105,092$9,841

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.