Stephen Trundle
Chief Executive Officer at Alarm.com Holdings Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Alarm.com Holdings Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Alarm.com Holdings Inc. June 3, 202699.1%
-
Alarm.com Holdings Inc. June 4, 202599.5%
-
Alarm.com Holdings Inc. June 5, 202499.5%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 2, 2026 | Alarm.com Holdings Inc. | Gift | −2,000 | — | — |
| Aug 24, 2026 | Alarm.com Holdings Inc. | Option exercise | +50,000 | $32.17 | $1,608,500 |
| Aug 24, 2026 | Alarm.com Holdings Inc. | Open-market sale | −50,000 | $57.67 | $2,883,500 |
| May 26, 2026 | Alarm.com Holdings Inc. | Open-market sale | −6,073 | $43.78 | $265,876 |
| May 18, 2026 | Alarm.com Holdings Inc. | Open-market sale | −2,944 | $43.56 | $128,241 |
| Apr 8, 2026 | Alarm.com Holdings Inc. | Grant or award | +65,000 | — | — |
| Nov 20, 2025 | Alarm.com Holdings Inc. | Open-market purchase | +9,900 | $48.06 | $475,794 |
| Nov 20, 2025 | Alarm.com Holdings Inc. | Open-market purchase | +100 | $48.66 | $4,866 |
| Nov 19, 2025 | Alarm.com Holdings Inc. | Open-market purchase | +12,469 | $48.53 | $605,121 |
| Nov 18, 2025 | Alarm.com Holdings Inc. | Open-market purchase | +3,531 | $48.57 | $171,501 |
| May 23, 2025 | Alarm.com Holdings Inc. | Open-market sale | −3,644 | $56.66 | $206,469 |
| May 22, 2025 | Alarm.com Holdings Inc. | Grant or award | +25,000 | — | — |
| May 16, 2025 | Alarm.com Holdings Inc. | Open-market sale | −3,626 | $59.51 | $215,783 |
| Apr 2, 2025 | Alarm.com Holdings Inc. | Open-market sale | −1,553 | $55.49 | $86,176 |
| Dec 10, 2024 | Alarm.com Holdings Inc. | Option exercise | +47,500 | $21.70 | $1,030,750 |
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