Insider filing · ALRM
Stephen Trundle
Chief Executive Officer
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Alarm.com Holdings, Inc.
ALRM · Technology · 25 filings in 24 months
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Stephen Trundle sold $2.9M of Alarm.com (ALRM)
Executed Aug 24, disclosed Aug 25, 1 day later.
Value, as filed
$2.9M
50,000 sh × $57.67
Executed
Aug 24
the trade date, as filed
Disclosed
Aug 25
1 day after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
–
purchases only
Returns are measured on stock purchases only.
The filer
STStephen Trundle (Chief Executive Officer) filed 4 Form 4 reports in the trailing twelve months (1 purchase, 3 sales), most often in Alarm.com Holdings, Inc. (ALRM). Across 1 priced purchase filing, the average 21-session return was +8.9% from execution and +8.0% from disclosure (delay-adjusted; derived). The largest single filing was $2.9M of ALRM (50,000 sh × $57.67, as filed), executed Aug 24.
The name
ALRMTechnology · Alarm.com Holdings, Inc. operates a platform for connected properties in North America and internationally
More Technology filings→ Insider filings, newest first→ View the original filing at www.sec.gov→Other filings by Stephen Trundle in ALRM
ALRMSALE
Alarm.com Holdings, Inc.
$266K6,073 sh × $43.78
Exec May 26
Filed May 28 · 5:30 PM ET ALRMSALE Alarm.com Holdings, Inc. $128K
2,944 sh × $43.56
Exec May 18
Filed May 20 · 5:30 PM ET ALRMPURCHASE Alarm.com Holdings, Inc. $1.3M
25,900 sh across 3 lots
Exec Nov 18 2025
Filed Nov 20 2025 · 6:26 PM ET ALRMSALE Alarm.com Holdings, Inc. $206K
3,644 sh × $56.66
Exec May 23 2025
Filed May 27 2025 · 5:30 PM ET ALRMSALE Alarm.com Holdings, Inc. $216K
3,626 sh × $59.51
Exec May 16 2025
Filed May 16 2025 · 5:30 PM ET ALRMSALE Alarm.com Holdings, Inc. $3.2M
47,500 sh across 2 lots
Exec Dec 10 2024
Filed Dec 11 2024 · 5:30 PM ET