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Alarm.com ALRM

$56.24 +$1.56 (+2.85%)
Pre-market · Oct 6, 7:40 am ET · After hours $56.24 0.00%
Open$54.81
Prev close$54.68
Day range$54.81 – $56.70
Volume574.5K
Market cap$2.76B
P/E (TTM)24.9
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership100.3%-0.01 pts vs. prior quarter
Institutions holding380+1 vs. prior quarter
Insider trades (recent)19 buys / 31 sellsNet selling
Short interest6.02% of floatDays to cover 7.3 · as of 15 Sep 2026
Short-sale volume share12.8%5-day average of daily volume

Short-sale volume as % of daily volume

5%10%15%20%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$3.12M (9 inflow days, 11 outflow days).

The five largest holders on file together own 46.3% of shares outstanding.

Largest holders

  • BlackRock19.34%
  • Vanguard Portfolio Management, LLC8.22%
  • Disciplined Growth Investors, Inc.7.30%
  • Burgundy Asset Management Ltd.6.38%
  • Vanguard Capital Management, LLC5.03%
  • State Street Global Advisors4.46%
  • Stephen Trundle3.65%
  • Geode Capital Management, LLC2.73%

By investor type

  • Mutual Fund84.12%
  • Hedge Fund6.35%
  • Public Company5.10%
  • Individual/Insider5.04%
  • Private Company2.06%
  • Government Pension Fund1.97%
  • Sovereign Wealth Fund0.35%
  • Insurance Company0.29%

Reported short interest has risen from 5.54% to 6.02% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 2,955,286 6.0% 7.3
31 Aug 2026 2,793,058 5.7% 8.2
14 Aug 2026 2,727,976 5.6% 6.9
31 Jul 2026 2,597,657 5.3% 6.3
15 Jul 2026 2,566,578 5.2% 5.8
30 Jun 2026 2,742,299 5.5% 3.4

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