Stephen Trundle, President and CEO at Alarm.com Holdings, Inc. (ALRM), sold 25,000 shares at $77.66 ($1.9M) on 2021-10-11, disclosed to the SEC on 2021-10-13.
Open-market sale of $1.9M ALRM by President and CEO. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| ALRM | SELL | 2026-05-20 | $128K | — | Filing → |
| ALRM | BUY | 2025-11-20 | $2.0M | — | Filing → |
| ALRM | SELL | 2025-05-27 | $413K | — | Filing → |