ALRM · Insider Trading
Alarm.com Holdings, Inc.
Every open-market purchase and sale reported by ALRM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-04 | Stephen Trundle | Chief Executive Officer | G | −2,000 | — |
| 2026-08-25 | Stephen Trundle | Chief Executive Officer | MIXED | — | −$1.27M |
| 2026-08-14 | Kevin Christopher Bradley | Chief Financial Officer | Sell | −5,400 | −$297.38K |
| 2026-07-02 | Kevin Christopher Bradley | Chief Financial Officer | Sell | −724 | −$35.09K |
| 2026-06-12 | Daniel Ramos | See Remarks | Sell | −10,000 | −$462.84K |
| 2026-06-12 | Kevin Christopher Bradley | Chief Financial Officer | Sell | −2,200 | −$101.53K |
| 2026-06-08 | Timothy P McAdam | Director | A | +3,222 | — |
| 2026-06-08 | Simone WU | Director | A | +3,222 | — |
| 2026-06-08 | Stephen C. Evans | Director | A | +3,222 | — |
| 2026-06-08 | Cecile Burleigh Harper | Director | A | +3,222 | — |
| 2026-06-08 | Darius G Nevin | Director | A | +3,222 | — |
| 2026-06-08 | Timothy J. Whall | Director | A | +3,222 | — |
| 2026-06-08 | Donald E Clarke | Director | A | +3,222 | — |
| 2026-05-28 | Daniel Kerzner | See Remarks | Sell | −3,944 | −$172.67K |
| 2026-05-28 | Daniel Ramos | See Remarks | Sell | −2,532 | −$110.85K |
| 2026-05-28 | Stephen Trundle | Chief Executive Officer | Sell | −6,073 | −$265.88K |
| 2026-05-20 | Daniel Kerzner | See Remarks | Sell | −1,915 | −$83.42K |
| 2026-05-20 | Stephen Trundle | Chief Executive Officer | Sell | −2,944 | −$128.24K |
| 2026-05-20 | Daniel Ramos | See Remarks | Sell | −1,561 | −$68.00K |
| 2026-04-10 | Daniel Kerzner | See Remarks | A | +55,000 | — |
| 2026-04-10 | Daniel Ramos | See Remarks | A | +25,000 | — |
| 2026-04-10 | Kevin Christopher Bradley | Chief Financial Officer | A | +35,000 | — |
| 2026-04-10 | Stephen Trundle | Chief Executive Officer | A | +65,000 | — |
| 2026-03-19 | Kevin Christopher Bradley | Chief Financial Officer | Sell | −1,510 | −$69.41K |
| 2026-03-19 | Darius G Nevin | Director | MIXED | — | −$880.92K |
| 2025-12-18 | Jeffrey A Bedell | See Remarks | MIXED | — | −$836.35K |
| 2025-12-16 | Stephen C. Evans | Director | Sell | −1,154 | −$60.32K |
| 2025-12-16 | Jeffrey A Bedell | See Remarks | MIXED | — | −$85.21K |
| 2025-11-28 | Timothy P McAdam | Director | G | −7,000 | — |
| 2025-11-20 | Stephen Trundle | Chief Executive Officer | Buy | +26,000 | +$1.26M |
| 2025-11-14 | Daniel Kerzner | See Remarks | MIXED | −20,004 | −$1.36M |
| 2025-07-02 | Kevin Christopher Bradley | Chief Financial Officer | Sell | −754 | −$42.79K |
| 2025-06-12 | Stephen C. Evans | Director | Sell | −1,000 | −$59.64K |
| 2025-06-06 | Timothy J. Whall | Director | A | +2,510 | — |
| 2025-06-06 | Cecile Burleigh Harper | Director | A | +2,510 | — |
| 2025-06-06 | Simone WU | Director | A | +2,510 | — |
| 2025-06-06 | Timothy P McAdam | Director | A | +2,510 | — |
| 2025-06-06 | Donald E Clarke | Director | A | +2,510 | — |
| 2025-06-06 | Stephen C. Evans | Director | A | +2,510 | — |
| 2025-06-06 | Darius G Nevin | Director | A | +2,510 | — |
| 2025-05-27 | Daniel Kerzner | See Remarks | MIXED | +15,287 | −$125.39K |
| 2025-05-27 | Daniel Ramos | See Remarks | MIXED | +5,238 | −$503.59K |
| 2025-05-27 | Stephen Trundle | Chief Executive Officer | MIXED | +21,356 | −$206.47K |
| 2025-05-27 | Jeffrey A Bedell | See Remarks | MIXED | +15,296 | −$124.88K |
| 2025-05-16 | Jeffrey A Bedell | See Remarks. | Sell | −2,019 | −$120.15K |
| 2025-05-16 | Daniel Ramos | See Remarks | MIXED | −3,369 | −$268.27K |
| 2025-05-16 | Kevin Christopher Bradley | Chief Financial Officer | Sell | −390 | −$23.21K |
| 2025-05-16 | Stephen Trundle | Chief Executive Officer | Sell | −3,626 | −$215.78K |
| 2025-05-16 | Daniel Kerzner | See Remarks | Sell | −2,019 | −$120.15K |
| 2025-04-04 | Daniel Ramos | — | Sell | −777 | −$43.12K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Jeffrey A Bedell | See Remarks | 528,532 | $35.92M |
| Stephen Trundle | Chief Executive Officer | 332,704 | $22.61M |
| Timothy P McAdam | Director | 103,838 | $7.06M |
| Daniel Kerzner | See Remarks | 101,141 | $6.87M |
| Kevin Christopher Bradley | Chief Financial Officer | 78,222 | $5.32M |
| Daniel Ramos | See Remarks | 53,099 | $3.61M |
| Steve Valenzuela | Chief Financial Officer | 37,500 | $2.55M |
| Darius G Nevin | Director | 30,097 | $2.05M |
| Donald E Clarke | Director | 20,074 | $1.36M |
| Simone WU | Director | 15,855 | $1.08M |
| Timothy J. Whall | Director | 14,404 | $978.90K |
| Stephen C. Evans | Director | 9,345 | $635.09K |
| Cecile Burleigh Harper | Director | 8,036 | $546.13K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ALRM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.