The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Trundle Stephen since 2017.
This trader's CIK number is 1643898.
At the time of last reporting, Trundle Stephen was the Chief Executive Officer of Alarm.com Holdings, Inc.. (stock ticker symbol ALRM).
Also see all insider trading activities at Alarm.com Holdings, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | ALRM | 0 | $0 | 8,823 | $508,427 | 0 | $0 |
| 2024 | ALRM | 0 | $0 | 100,717 | $7,184,490 | 47,500 | $1,030,750 |
| 2023 | ALRM | 0 | $0 | 9,481 | $467,792 | 0 | $0 |
| 2022 | ALRM | 0 | $0 | 7,697 | $498,519 | 0 | $0 |
| 2021 | ALRM | 0 | $0 | 253,073 | $21,034,542 | 105,000 | $420,000 |
| 2020 | ALRM | 0 | $0 | 459,752 | $29,950,624 | 95,000 | $380,000 |
| 2019 | ALRM | 0 | $0 | 102,271 | $5,747,721 | 100,000 | $400,000 |
| 2018 | ALRM | 0 | $0 | 117,193 | $5,390,469 | 79,693 | $376,792 |
| 2017 | ALRM | 0 | $0 | 138,542 | $6,193,586 | 38,592 | $15,822 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-05-23 | ALRM | Sale | 3,644 | 56.66 | 206,469 |
| 2025-05-16 | ALRM | Sale | 3,626 | 59.51 | 215,783 |
| 2025-04-02 | ALRM | Sale | 1,553 | 55.49 | 86,175 |
| 2024-12-10 | ALRM | Option Ex | 47,500 | 21.70 | 1,030,750 |
| 2024-12-10 | ALRM | Sale | 47,500 | 68.48 | 3,252,800 |
| 2024-04-02 | ALRM | Sale | 3,217 | 70.00 | 225,190 |
| 2024-02-23 | ALRM | Sale | 50,000 | 74.13 | 3,706,500 |
| 2023-05-16 | ALRM | Sale | 4,694 | 48.82 | 229,161 |
| 2023-04-03 | ALRM | Sale | 4,787 | 49.85 | 238,631 |
| 2022-05-16 | ALRM | Sale | 2,392 | 57.95 | 138,628 |
| 2022-04-04 | ALRM | Sale | 5,305 | 67.84 | 359,891 |
| 2021-12-06 | ALRM | Option Ex | 25,000 | 4.00 | 100,000 |
| 2021-12-06 | ALRM | Sale | 25,000 | 79.05 | 1,976,325 |
| 2021-11-22 | ALRM | Sale | 13,275 | 83.78 | 1,112,179 |
| 2021-11-19 | ALRM | Sale | 2,909 | 84.04 | 244,472 |
| 2021-11-18 | ALRM | Sale | 3,410 | 83.41 | 284,428 |
| 2021-11-15 | ALRM | Sale | 10,577 | 84.25 | 891,059 |
| 2021-11-16 | ALRM | Sale | 22,425 | 84.55 | 1,895,921 |
| 2021-11-17 | ALRM | Sale | 7,881 | 85.00 | 669,924 |
| 2021-11-11 | ALRM | Sale | 7,222 | 85.34 | 616,325 |
| 2021-11-12 | ALRM | Sale | 14,653 | 85.59 | 1,254,150 |
| 2021-11-09 | ALRM | Sale | 1,000 | 90.19 | 90,190 |
| 2021-11-11 | ALRM | Option Ex | 7,222 | 4.00 | 28,888 |
| 2021-11-09 | ALRM | Option Ex | 1,000 | 4.00 | 4,000 |
| 2021-11-12 | ALRM | Option Ex | 6,778 | 4.00 | 27,112 |
| 2021-10-11 | ALRM | Option Ex | 25,000 | 4.00 | 100,000 |
| 2021-10-11 | ALRM | Sale | 25,000 | 77.66 | 1,941,500 |
| 2021-08-19 | ALRM | Option Ex | 25,000 | 4.00 | 100,000 |
| 2021-08-19 | ALRM | Sale | 25,000 | 76.61 | 1,915,374 |
| 2021-06-04 | ALRM | Sale | 8,425 | 79.80 | 672,315 |
| 2021-06-07 | ALRM | Sale | 11,575 | 80.59 | 932,829 |
| 2021-05-14 | ALRM | Sale | 14,087 | 82.29 | 1,159,219 |
| 2021-05-07 | ALRM | Sale | 30,383 | 85.91 | 2,610,294 |
| 2021-05-11 | ALRM | Sale | 15,251 | 84.50 | 1,288,633 |
| 2021-01-15 | ALRM | Sale | 15,000 | 98.63 | 1,479,405 |
| 2021-01-15 | ALRM | Option Ex | 15,000 | 4.00 | 60,000 |
| 2020-11-18 | ALRM | Sale | 23,361 | 70.95 | 1,657,579 |
| 2020-11-13 | ALRM | Sale | 34,585 | 70.54 | 2,439,625 |
| 2020-11-16 | ALRM | Sale | 14,221 | 70.11 | 997,034 |
| 2020-11-17 | ALRM | Sale | 29,139 | 70.50 | 2,054,299 |
| 2020-11-09 | ALRM | Option Ex | 15,000 | 4.00 | 60,000 |
| 2020-11-12 | ALRM | Sale | 4,724 | 71.04 | 335,592 |
| 2020-11-11 | ALRM | Sale | 49,122 | 71.89 | 3,531,527 |
| 2020-11-10 | ALRM | Sale | 4,848 | 71.26 | 345,468 |
| 2020-11-09 | ALRM | Sale | 15,000 | 75.50 | 1,132,500 |
| 2020-08-24 | ALRM | Option Ex | 10,000 | 4.00 | 40,000 |
| 2020-08-25 | ALRM | Option Ex | 15,000 | 4.00 | 60,000 |
| 2020-08-24 | ALRM | Sale | 10,000 | 58.66 | 586,600 |
| 2020-08-25 | ALRM | Sale | 15,000 | 59.12 | 886,875 |
| 2020-07-27 | ALRM | Sale | 101,763 | 67.56 | 6,875,413 |
| 2020-07-28 | ALRM | Sale | 98,237 | 67.46 | 6,627,068 |
| 2020-04-08 | ALRM | Option Ex | 35,000 | 4.00 | 140,000 |
| 2020-04-08 | ALRM | Sale | 35,000 | 41.67 | 1,458,450 |
| 2020-04-02 | ALRM | Sale | 4,752 | 37.12 | 176,394 |
| 2020-01-13 | ALRM | Option Ex | 20,000 | 4.00 | 80,000 |
| 2020-01-13 | ALRM | Sale | 20,000 | 42.31 | 846,200 |
| 2019-11-14 | ALRM | Option Ex | 10,000 | 4.00 | 40,000 |
| 2019-11-15 | ALRM | Sale | 5,000 | 44.62 | 223,100 |
| 2019-11-14 | ALRM | Sale | 10,000 | 44.83 | 448,300 |
| 2019-11-15 | ALRM | Option Ex | 5,000 | 4.00 | 20,000 |
| 2019-08-19 | ALRM | Sale | 20,000 | 47.18 | 943,600 |
| 2019-08-19 | ALRM | Option Ex | 20,000 | 4.00 | 80,000 |
| 2019-04-22 | ALRM | Sale | 20,000 | 67.63 | 1,352,600 |
| 2019-04-22 | ALRM | Option Ex | 20,000 | 4.00 | 80,000 |
| 2019-04-08 | ALRM | Option Ex | 15,000 | 4.00 | 60,000 |
| 2019-04-08 | ALRM | Sale | 15,000 | 64.71 | 970,649 |
| 2019-04-02 | ALRM | Sale | 2,271 | 64.63 | 146,774 |
| 2019-01-16 | ALRM | Sale | 1,200 | 56.65 | 67,980 |
| 2019-01-15 | ALRM | Sale | 10,000 | 55.87 | 558,650 |
| 2019-01-16 | ALRM | Option Ex | 1,200 | 4.00 | 4,800 |
| 2019-01-14 | ALRM | Sale | 18,800 | 55.11 | 1,036,068 |
| 2019-01-15 | ALRM | Option Ex | 10,000 | 4.00 | 40,000 |
| 2019-01-14 | ALRM | Option Ex | 18,800 | 4.00 | 75,200 |
| 2018-12-10 | ALRM | Sale | 10,000 | 49.68 | 496,800 |
| 2018-11-15 | ALRM | Sale | 15,000 | 47.59 | 713,850 |
| 2018-11-14 | ALRM | Sale | 15,000 | 47.70 | 715,500 |
| 2018-11-15 | ALRM | Option Ex | 15,000 | 3.89 | 58,350 |
| 2018-11-13 | ALRM | Sale | 15,000 | 47.65 | 714,750 |
| 2018-08-15 | ALRM | Option Ex | 15,000 | 3.89 | 58,350 |
| 2018-08-15 | ALRM | Sale | 15,000 | 50.77 | 761,550 |
| 2018-06-18 | ALRM | Sale | 7,193 | 45.54 | 327,569 |
| 2018-06-18 | ALRM | Option Ex | 7,193 | 3.89 | 27,980 |
| 2018-06-15 | ALRM | Sale | 15,000 | 45.51 | 682,650 |
| 2018-06-15 | ALRM | Option Ex | 15,000 | 3.89 | 58,350 |
| 2018-03-16 | ALRM | Option Ex | 20,000 | 3.89 | 77,800 |
| 2018-03-15 | ALRM | Sale | 5,000 | 39.80 | 199,000 |
| 2018-03-16 | ALRM | Sale | 20,000 | 38.94 | 778,800 |
| 2018-03-15 | ALRM | Option Ex | 7,500 | 12.79 | 95,962 |
| 2017-11-17 | ALRM | Sale | 7,668 | 44.35 | 340,075 |
| 2017-11-20 | ALRM | Sale | 12,332 | 44.91 | 553,830 |
| 2017-11-16 | ALRM | Sale | 40,000 | 43.65 | 1,746,000 |
| 2017-08-31 | ALRM | Sale | 10,850 | 44.98 | 488,032 |
| 2017-08-29 | ALRM | Option Ex | 38,592 | .41 | 15,822 |
| 2017-08-29 | ALRM | Sale | 38,592 | 44.94 | 1,734,324 |
| 2017-08-30 | ALRM | Sale | 29,100 | 45.75 | 1,331,325 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Trundle Stephen (Chief Executive Officer of Alarm.com Holdings, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.