Alarm.com Holdings ALRM Institutional Ownership

Updated Oct 11, 2026

Alarm.com Holdings, Inc. (NASDAQ:ALRM) was held by 313 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

• Together they owned 98.22% of the outstanding stock in Q2 2026, up from 96.38% a quarter earlier.
• Total holdings of ALRM shares rose 1.35% from Q1 2026, and the holder count rose 3.64% from Q2 2025.
• Of the 313 holders, 168 added to their positions, 106 reduced their stakes and 39 left their positions unchanged in Q2 2026.
• Combined, institutional investors held 48.45Mn shares of ALRM as of Q2 2026, up 646.61K from the prior quarter and up 1.34Mn from a year earlier.
• BlackRock, Inc. held the largest position in ALRM at 9.49Mn shares as of June 30, 2026, or 19.24% of shares outstanding.
• The biggest increases in ALRM positions during Q2 2026 came from Bank of Montreal (+797.55K shares), BlackRock, Inc. (+355.31K shares), JPMorgan Chase & Co (+338.04K shares), Disciplined Growth Investors Inc (+316.63K shares) and American Century Companies Inc (+286.96K shares).
• The biggest cuts to ALRM positions during Q2 2026 came from Algert Global LLC (-405.01K shares), SG Americas Securities, LLC (-323.59K shares), Geneva Capital Management LLC (-241.67K shares), Brown Capital Management LLC (-238.57K shares) and Riverbridge Partners LLC (-197.98K shares).
• Alarm.com Holdings' 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (9.49Mn shares), Vanguard Portfolio Management LLC (4.04Mn shares), Disciplined Growth Investors Inc (3.59Mn shares), Bank of Montreal (3.46Mn shares), State Street Corp (2.19Mn shares), Vanguard Capital Management LLC (2.14Mn shares), Geode Capital Management, LLC (1.34Mn shares), Dimensional Fund Advisors LP (1.26Mn shares), Morgan Stanley (1.18Mn shares) and Arrowstreet Capital, Limited Partnership (1.01Mn shares), per Business Quant data.