Stephen Trundle, President and CEO at Alarm.com Holdings, Inc. (ALRM), sold 50,000 shares at $79.20 ($4.0M) on 2021-12-06, disclosed to the SEC on 2021-12-08.
Open-market sale of $4.0M 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.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $78.30 | 3,462 | $271K | 6.9% |
| 2 | $78.30 | 3,462 | $271K | 6.9% |
| 3 | $79.20 | 19,821 | $1.6M | 39.7% |
| 4 | $79.20 | 19,821 | $1.6M | 39.7% |
| 5 | $79.66 | 1,717 | $137K | 3.5% |
| 6 | $79.66 | 1,717 |
| $137K |
| 3.5% |
| Total | $79.11 avg | 50,000 | $4.0M | 100% |
| Filing → |
| ALRM | SELL | 2026-05-20 | $128K | — | Filing → |
| ALRM | BUY | 2025-11-20 | $2.0M | — | Filing → |
| ALRM | SELL | 2025-05-27 | $413K | — | Filing → |