GENERAC HOLDINGS INC (GNRC) Stock Institutional Trading Activity


GENERAC HOLDINGS INC (GNRC) 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 Matrix Advisors Value Fund, Renaissance Technologies LLC, Ariel Appreciation Fund, Disciplined Growth Investors, and Mairs & Power Growth Fund. 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 2021Eagle Capital ManagementBuy29510,148$3,571
Q4 2021Olstein Capital ManagementBuy11,75032,500$11,437
Q4 2021Mairs & Power Growth FundSell-2,42683,828$29,501
Q3 2021Polen Capital ManagementSell-3,6686,436$2,630
Q3 2021Eagle Capital ManagementBuy9,8539,853$4,027
Q3 2021Olstein Capital ManagementSell-1,75020,750$8,480
Q3 2021Mairs & Power Growth FundSell-3,66086,254$35,249
Q2 2021Polen Capital ManagementSell-2,87510,104$4,195
Q2 2021Olstein Capital ManagementSell-4,80022,500$9,341
Q2 2021Mairs & Power Growth FundSell-5,52189,914$37,328
Q1 2021Polen Capital ManagementBuy1,22312,979$4,250
Q1 2021Olstein Capital ManagementSell-12,40027,300$8,939
Q1 2021Mairs & Power Growth FundSell-9,34495,435$31,250
Q4 2020Polen Capital ManagementBuy11,75611,756$2,673
Q4 2020Olstein Capital ManagementSell-11,30039,700$9,028
Q4 2020Mairs & Power Growth FundSell-4,445104,779$23,828
Q3 2020Olstein Capital ManagementSell-23,00051,000$9,876
Q3 2020Mairs & Power Growth FundSell-12,444109,224$21,150
Q3 2020Renaissance Technologies LLCSell-131,600125,100$24,224
Q3 2020Ariel Appreciation FundSell-77,161232,082$44,940
Q2 2020Olstein Capital ManagementSell-17,60074,000$9,023
Q2 2020Mairs & Power Growth FundSell-64,380121,668$14,835
Q2 2020Ariel Appreciation FundSell-14,475309,243$37,706
Q1 2020Olstein Capital ManagementSell-19,50091,600$8,534
Q1 2020Mairs & Power Growth FundSell-418,280186,048$17,334
Q1 2020Ariel Appreciation FundSell-97,558323,718$30,161
Q4 2019Mairs & Power Growth FundSell-30,077604,328$60,789
Q4 2019Olstein Capital ManagementSell-12,900111,100$11,176
Q4 2019Renaissance Technologies LLCBuy99,600256,700$25,821
Q4 2019Ariel Appreciation FundSell-52,561421,276$42,376

Frequently asked questions about GNRC activity

  • Which institutional owners are buying GNRC?

    Institutional owners buying GNRC 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 GNRC activity?

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

  • Is institutional interest in GNRC increasing?

    Institutional interest in GNRC 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.