12 insiders reported 71 Form 4 transactions for Alarm.com Holdings, Inc. (ALRM) over the past 18 months (most recent 2026-09-04). Recent activity: Trundle Stephen (Chief Executive Officer) Sell 2,000 shares, Trundle Stephen (Chief Executive Officer) Buy 50,000 shares, Trundle Stephen (Chief Executive Officer) Sell 50,000 shares, Bradley Kevin Christopher (Chief Financial Officer) Sell 5,400 shares, Bradley Kevin Christopher (Chief Financial Officer) Sell 724 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-04 | Trundle Stephen | Chief Executive Officer | Sell | 2,000 | $0 |
| 2026-08-25 | Trundle Stephen | Chief Executive Officer | Buy | 50,000 | $1.6M |
| 2026-08-25 | Trundle Stephen | Chief Executive Officer | Sell | 50,000 | $2.9M |
| 2026-08-14 | Bradley Kevin Christopher | Chief Financial Officer | Sell | 5,400 | $297,378 |
| 2026-07-02 | Bradley Kevin Christopher | Chief Financial Officer | Sell | 724 | $35,085 |
| 2026-06-12 | Bradley Kevin Christopher | Chief Financial Officer | Sell | 2,200 | $101,530 |
| 2026-06-12 | Ramos Daniel | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sell | 8,000 | $369,840 |
| 2026-06-12 | Ramos Daniel | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sell | 2,000 | $93,000 |
| 2026-06-08 | Whall Timothy J. | Director | Buy | 3,222 | $0 |
| 2026-06-08 | Clarke Donald E | Director | Buy | 3,222 | $0 |
| 2026-06-08 | Harper Cecile Burleigh | Director | Buy | 3,222 | $0 |
| 2026-06-08 | McAdam Timothy P | Director | Buy | 3,222 | $0 |
| 2026-06-08 | Evans Stephen C. | Director | Buy | 3,222 | $0 |
| 2026-06-08 | NEVIN DARIUS G | Director | Buy | 3,222 | $0 |
| 2026-06-08 | WU Simone | Director | Buy | 3,222 | $0 |
| 2026-05-28 | Trundle Stephen | Chief Executive Officer | Sell | 6,073 | $265,876 |
| 2026-05-28 | Kerzner Daniel | President, Platforms Business | Sell | 3,944 | $172,668 |
| 2026-05-28 | Ramos Daniel | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sell | 2,532 | $110,851 |
| 2026-05-20 | Kerzner Daniel | President, Platforms Business | Sell | 1,915 | $83,417 |
| 2026-05-20 | Ramos Daniel | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Sell | 1,561 | $67,997 |
| 2026-05-20 | Trundle Stephen | Chief Executive Officer | Sell | 2,944 | $128,241 |
| 2026-04-10 | Ramos Daniel | Chief Legal and Compliance Officer; Senior Vice President, Corporate Operations | Buy | 25,000 | $0 |
| 2026-04-10 | Kerzner Daniel | President, Platforms Business | Buy | 55,000 | $0 |
| 2026-04-10 | Bradley Kevin Christopher | Chief Financial Officer | Buy | 35,000 | $0 |
| 2026-04-10 | Trundle Stephen | Chief Executive Officer | Buy | 65,000 | $0 |
Source: SEC Form 4 filings · as of 2026-09-04