As of April 11, 2026, the three largest insider holders of ALRM are Stephen Trundle (Chief Executive Officer, 1.32Mn shares), Stephen Trundle (Chief Executive Officer, 268.86K shares), Daniel Kerzner (Chief Product Officer, 52.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Stephen Trundle | Chief Executive Officer | 0 | 1,315,343 | 20 Nov, 2025 |
| Stephen Trundle | Chief Executive Officer | 268,859 | 0 | 27 May, 2025 |
| Daniel Kerzner | Chief Product Officer | 52,000 | 0 | 14 Nov, 2025 |
| Kevin Christopher Bradley | Chief Financial Officer | 51,546 | 0 | 19 Mar, 2026 |
| Daniel Ramos | Sr. Vp Corporate Development | 42,192 | 0 | 27 May, 2025 |
| Steve Valenzuela | Chief Financial Officer | 37,500 | 0 | 14 Mar, 2025 |
| Darius G Nevin | - | 24,375 | 0 | 19 Mar, 2026 |
| Simone Wu | - | 12,633 | 0 | 06 Jun, 2025 |
| Timothy J. Whall | - | 11,182 | 0 | 06 Jun, 2025 |
| Stephen C. Evans | - | 6,123 | 0 | 16 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 18 Mar, 2026 | Kevin Christopher Bradley | Common Stock | D | 1,510 | $45.97 | 51,546 | D | S |
| 18 Mar, 2026 | Darius G Nevin | Common Stock | A | 36,000 | $21.70 | 60,375 | D | M |
| 18 Mar, 2026 | Darius G Nevin | Common Stock | D | 36,000 | $46.17 | 24,375 | D | S |
| 18 Mar, 2026 | Darius G Nevin | Stock Option (Right to Buy) | D | 36,000 | $0.00 | 0 | D | M |
| 16 Dec, 2025 | Jeffrey A Bedell | Common Stock | A | 22,727 | $15.02 | 528,532 | D | M |
| 16 Dec, 2025 | Jeffrey A Bedell | Common Stock | D | 22,727 | $51.82 | 505,805 | D | S |
| 16 Dec, 2025 | Jeffrey A Bedell | Employee Stock Option (Right to Buy) | D | 22,727 | $0.00 | 0 | D | M |
| 12 Dec, 2025 | Jeffrey A Bedell | Common Stock | A | 2,273 | $15.02 | 508,078 | D | M |
| 12 Dec, 2025 | Stephen C. Evans | Common Stock | D | 1,154 | $52.27 | 6,123 | D | S |
| 12 Dec, 2025 | Jeffrey A Bedell | Common Stock | D | 2,273 | $52.51 | 505,805 | D | S |
| 12 Dec, 2025 | Jeffrey A Bedell | Employee Stock Option (Right to Buy) | D | 2,273 | $0.00 | 22,727 | D | M |
| 18 Nov, 2025 | Stephen Trundle | Common Stock | A | 3,531 | $48.57 | 1,292,874 | I | P |
| 19 Nov, 2025 | Stephen Trundle | Common Stock | A | 12,469 | $48.53 | 1,305,343 | I | P |
| 20 Nov, 2025 | Stephen Trundle | Common Stock | A | 9,900 | $48.06 | 1,315,243 | I | P |
| 20 Nov, 2025 | Stephen Trundle | Common Stock | A | 100 | $48.66 | 1,315,343 | I | P |
| 12 Nov, 2025 | Daniel Kerzner | Common Stock | D | 20,004 | $50.29 | 52,000 | D | S |
| 13 Nov, 2025 | Daniel Kerzner | Common Stock | A | 10,000 | $15.02 | 62,000 | D | M |
| 13 Nov, 2025 | Daniel Kerzner | Common Stock | D | 10,000 | $50.33 | 52,000 | D | S |
| 13 Nov, 2025 | Daniel Kerzner | Stock Option (Right to Buy) | D | 10,000 | $0.00 | 0 | D | M |
| 02 Jul, 2025 | Kevin Christopher Bradley | Common Stock | D | 754 | $56.75 | 53,056 | D | S |