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Who owns Alarm.com Holdings (ALRM) stock

304 funds reported Alarm.com Holdings (ALRM) shares in their latest 13F filings, worth $2.6B in all. The largest holder is BlackRock ($443M). Last quarter 146 funds added to their stakes and 127 cut them.

Largest holders of ALRM (13F)Largest holders of ALRM (13F)BlackRock$443MVanguard Group$321MVanguard Portfolio Management LLC$189MDisciplined Growth Investors$168MBank of Montreal$161MState Street$102MVanguard Capital Management LLC$100MGeode Capital Management, LLC$62.5MDimensional Fund Advisors LP$58.8MBurgundy Asset Management$58.6M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock9,492,105$443Mincrease2026-06-30
Vanguard Group6,286,541$321Mincrease2025-12-31
Vanguard Portfolio Management LLC4,035,026$189Mincrease2026-06-30
Disciplined Growth Investors3,585,614$168Mincrease2026-06-30
Bank of Montreal3,455,190$161Mincrease2026-06-30
State Street2,188,123$102Mincrease2026-06-30
Vanguard Capital Management LLC2,141,371$100Mdecrease2026-06-30
Geode Capital Management, LLC1,338,291$62.5Mincrease2026-06-30
Dimensional Fund Advisors LP1,258,666$58.8Mincrease2026-06-30
Burgundy Asset Management999,208$58.6Mincrease2025-09-30
Morgan Stanley1,183,422$55.3Mdecrease2026-06-30
Arrowstreet Capital, Limited Partnership1,010,774$47.2Mincrease2026-06-30
Geneva Capital Management LLC828,409$38.7Mdecrease2026-06-30
FMR LLC775,426$36.2Mdecrease2026-06-30
Two Sigma Investments, LP676,619$31.6Mdecrease2026-06-30

Alarm.com Holdings' latest quarter

Alarm.com Holdings, Q3 2026: revenue $279M (+9% year over year), operating margin 15.7%, net earnings $34.3M, operating cash flow $75.1M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most ALRM stock?

By the latest 13F filings: BlackRock ($443M); Vanguard Group ($321M); Vanguard Portfolio Management LLC ($189M); Disciplined Growth Investors ($168M); Bank of Montreal ($161M).

What is the short interest in ALRM?

3,096,633 shares were sold short at the 2026-10-15 settlement, 1.6% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.