ALARM.COM HOLDINGS INC (ALRM) Stock Institutional Trading Activity


ALARM.COM HOLDINGS INC (ALRM) 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 Disciplined Growth Investors, Renaissance Technologies LLC, Polen Capital Management, Bares Capital Management, and ValueAct Holdings. 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
Q1 2017Bares Capital ManagementBuy919,6822,325,021$71,471
Q4 2016Renaissance Technologies LLCBuy124,400293,800$8,176
Q4 2016Bares Capital ManagementBuy19,1061,405,339$39,111
Q3 2016Renaissance Technologies LLCSell-47,600169,400$4,889
Q3 2016Bares Capital ManagementSell-620,4281,386,233$40,007
Q2 2016Renaissance Technologies LLCSell-71,400217,000$5,562
Q2 2016Bares Capital ManagementBuy197,4152,006,661$51,431
Q1 2016Renaissance Technologies LLCBuy226,900288,400$6,835
Q1 2016Bares Capital ManagementBuy1,809,2461,809,246$42,879
Q4 2015Renaissance Technologies LLCBuy61,50061,500$1,026
Q2 2015Akre Capital ManagementBuy400,000400,000$6,152

Frequently asked questions about ALRM activity

  • Which institutional owners are buying ALRM?

    Institutional owners buying ALRM 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 ALRM activity?

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

  • Is institutional interest in ALRM increasing?

    Institutional interest in ALRM 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.