Stephen Trundle bought $1.3M of Alarm.com (ALRM)
Executed Nov 18 2025, disclosed Nov 20 2025, 2 days later.
Over the 21 trading sessions from the disclosed entry session (Nov 20 2025), the stock returned +8.0% (delay-adjusted); from the execution session (Nov 18 2025), +8.9%. Derived: entry at the session's open, exit at the close 20 sessions later.
Stephen 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.
Technology · 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→50,000 sh × $57.67
Exec Aug 24
Filed Aug 25 · 5:43 PM ET ALRMSALE Alarm.com Holdings, Inc. $266K
6,073 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 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