Open Insider Trading Activity for Alarm.Com Holdings, Inc. Chief Executive Officer Trundle Stephen
31-day price and insider activity (up to 2 years)
Daily candles with triangles for the buy and sale transactions shown below. Scroll left or zoom out to load earlier candles (up to 2 years).
▲ Insider buy
▼ Insider sale
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10b5-1: Scheduled Form 4 Transaction ALRM | 2026-05-28 | 2026-05-26 | Alarm.Com Holdings, Inc. | Trundle Stephen | Chief Executive Officer | Sell | 1 | 6,073 | $43.78 | $265,875.94 | 1.84% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction ALRM | 2026-05-20 | 2026-05-18 | Alarm.Com Holdings, Inc. | Trundle Stephen | Chief Executive Officer | Sell | 1 | 2,944 | $43.56 | $128,240.64 | 0.88% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ALRM | 2025-11-20 | 2025-11-20 | Alarm.Com Holdings, Inc. | Trundle Stephen | Chief Executive Officer | Buy | 4 | 26,000 | $48.36 | $1,257,281.24 | 0.50% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction ALRM | 2025-05-27 | 2025-05-23 | Alarm.Com Holdings, Inc. | Trundle Stephen | Chief Executive Officer | Sell | 1 | 3,644 | $56.66 | $206,469.04 | 1.34% | View Filing |