Stephen Trundle serves as Executive at Alarm.com Holdings, Inc., where they oversee executive responsibilities. Since joining the company, Stephen Trundle has executed 164 insider transactions totaling $80.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 20, 2025 involved purchasing 9,900 shares valued at $475.8K.
Stephen Trundle currently holds 1,315,243 shares of Alarm.com Holdings, Inc. (ALRM), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Stephen Trundle has been a net seller of ALRM stock. They have purchased $1.3M and sold $78.8M worth of shares.
Stephen Trundle's most recent insider trade was on Nov 20, 2025, when they purchased 9,900 shares at $48.06 per share.
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| $48.66 |
| Discretionary |
| Nov 19, 2025 | ALRM | $605.1K | Purchase | 12,469 | $48.53 | Discretionary |
| Nov 18, 2025 | ALRM | $171.5K | Purchase | 3,531 | $48.57 | Discretionary |
| May 22, 2024 | ALRM | $0 | Award | 25,000 | $N/A | Discretionary |
| May 22, 2024 | ALRM | $151.1K | Payment | 2,255 | $67.02 | Discretionary |
| May 15, 2024 | ALRM | $316.1K | Payment | 4,512 | $70.05 | Discretionary |
| Apr 2, 2024 | ALRM | $225.2K | Sale | 3,217 | $70.00 | Planned |
| Mar 1, 2024 | ALRM | $0 | Gift | 5,000 | $N/A | Planned |
| Feb 23, 2024 | ALRM | $44.7K | Sale | 600 | $74.47 | Planned |
| Feb 23, 2024 | ALRM | $3.6M | Sale | 49,400 | $73.79 | Planned |
| May 22, 2023 | ALRM | $0 | Award | 25,000 | $N/A | Discretionary |
| May 16, 2023 | ALRM | $229.2K | Sale | 4,694 | $48.82 | Planned |
| Apr 3, 2023 | ALRM | $8.5K | Sale | 169 | $50.08 | Planned |
| Apr 3, 2023 | ALRM | $229.1K | Sale | 4,618 | $49.62 | Planned |
| May 16, 2022 | ALRM | $111.4K | Sale | 1,930 | $57.70 | Discretionary |
| May 16, 2022 | ALRM | $26.9K | Sale | 462 | $58.21 | Discretionary |
| May 15, 2022 | ALRM | $0 | Award | 25,000 | $N/A | Discretionary |
| Apr 4, 2022 | ALRM | $359.9K | Sale | 5,305 | $67.84 | Discretionary |
| Dec 6, 2021 | ALRM | $100.0K | Option Exercise | 25,000 | $4.00 | Discretionary |
| Dec 6, 2021 | ALRM | $136.8K | Sale | 1,717 | $79.66 | Discretionary |
| Dec 6, 2021 | ALRM | $271.1K | Sale | 3,462 | $78.30 | Discretionary |
| Dec 6, 2021 | ALRM | $1.6M | Sale | 19,821 | $79.20 | Discretionary |
| Nov 26, 2021 | ALRM | $0 | Gift | 5,000 | $N/A | Discretionary |
| Nov 24, 2021 | ALRM | $0 | Gift | 32,420 | $N/A | Discretionary |
| Nov 24, 2021 | ALRM | $0 | Gift | 252,030 | $N/A | Discretionary |
| Nov 22, 2021 | ALRM | $769.1K | Sale | 9,222 | $83.40 | Discretionary |
| Nov 22, 2021 | ALRM | $341.1K | Sale | 4,053 | $84.16 | Discretionary |
| Nov 19, 2021 | ALRM | $8.9K | Sale | 105 | $84.52 | Discretionary |
| Nov 19, 2021 | ALRM | $234.3K | Sale | 2,804 | $83.56 | Discretionary |