STURM RUGER & CO INC (RGR) Stock Institutional Trading Activity


STURM RUGER & CO INC (RGR) 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, and Vulcan Value Partners. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2018Renaissance Technologies LLCBuy427,800730,900$50,469
Q1 2018Renaissance Technologies LLCBuy95,700303,100$15,913
Q4 2017Renaissance Technologies LLCBuy81,100207,400$11,583
Q3 2017Renaissance Technologies LLCBuy117,200126,300$6,530
Q2 2017Renaissance Technologies LLCSell-100,0009,100$566
Q1 2017Renaissance Technologies LLCSell-164,900109,100$5,842
Q4 2016Renaissance Technologies LLCSell-79,100274,000$14,440
Q3 2016Renaissance Technologies LLCSell-17,300353,100$20,395
Q2 2016Renaissance Technologies LLCBuy15,700370,400$23,709
Q1 2016Mairs & Power Growth FundSell-13,4003,200$219
Q1 2016Renaissance Technologies LLCBuy168,100354,700$24,254
Q4 2015Renaissance Technologies LLCBuy139,200186,600$11,123
Q3 2015Renaissance Technologies LLCSell-206,70047,400$2,782
Q3 2014Renaissance Technologies LLCBuy108,817254,100$12,372
Q3 2014Vulcan Value PartnersBuy520,006520,006$26,760
Q2 2014Renaissance Technologies LLCBuy115,463145,283$8,573
Q1 2014Mairs & Power Growth FundSell-20016,600$993
Q1 2014Renaissance Technologies LLCBuy23,92029,820$1,783
Q4 2013Mairs & Power Growth FundSell-17,00016,800$1,228
Q4 2013Renaissance Technologies LLCSell-109,3005,900$431
Q3 2013Renaissance Technologies LLCSell-27,300115,200$7,215
Q2 2013Mairs & Power Growth FundBuy33,80033,800$1,624
Q2 2013Renaissance Technologies LLCBuy142,500142,500$6,846

Frequently asked questions about RGR activity

  • Which institutional owners are buying RGR?

    Institutional owners buying RGR 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 RGR activity?

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

  • Is institutional interest in RGR increasing?

    Institutional interest in RGR 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.