Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2022-05-15 Sale | 2022-05-17 8:16 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 2,392 | $57.8 | $138,254 | 1,866,039 (Indirect Direct) | View |
2022-04-04 Sale | 2022-04-06 6:33 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 5,305 | $67.84 | $359,891 | 1,813,431 (Indirect Direct) | View |
2021-12-06 Sale | 2021-12-08 5:35 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $79.11 | $1,977,674 | 1,818,736 (Indirect Direct) | View |
2021-11-18 Sale | 2021-11-22 8:25 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 19,594 | $83.59 | $1,637,820 | 2,108,186 (Indirect Direct) | View |
2021-11-15 Sale | 2021-11-17 7:29 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 40,883 | $84.21 | $3,442,873 | 2,127,780 (Indirect Direct) | View |
2021-11-09 Sale | 2021-11-12 6:48 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 22,875 | $85.71 | $1,960,666 | 2,264,441 (Indirect Direct) | View |
2021-10-11 Sale | 2021-10-13 4:36 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $77.66 | $1,941,500 | 2,216,538 (Indirect Direct) | View |
2021-08-19 Sale | 2021-08-23 5:22 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $77.24 | $1,930,964 | 2,241,538 (Indirect Direct) | View |
2021-06-04 Sale | 2021-06-08 7:24 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $80.15 | $1,602,970 | 2,176,538 (Indirect Direct) | View |
2021-05-28 Sale | 2021-06-02 8:17 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 40,279 | $81.89 | $3,298,334 | 2,196,538 (Indirect Direct) | View |
2021-05-14 Sale | 2021-05-18 7:25 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 14,087 | $82.29 | $1,159,219 | 2,266,817 (Indirect Direct) | View |
2021-05-07 Sale | 2021-05-11 8:09 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 45,634 | $85.23 | $3,889,338 | 2,225,904 (Indirect Direct) | View |
2021-04-22 Sale | 2021-04-26 5:08 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $90.23 | $1,804,668 | 2,361,538 (Indirect Direct) | View |
2021-04-05 Sale | 2021-04-07 6:22 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 7,125 | $87.39 | $622,668 | 2,271,538 (Indirect Direct) | View |
2021-01-15 Sale | 2021-01-20 5:36 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $98.79 | $1,481,800 | 2,398,663 (Indirect Direct) | View |
2020-11-18 Sale | 2020-11-20 7:41 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 23,361 | $70.81 | $1,654,300 | 2,288,663 (Indirect Direct) | View |
2020-11-13 Sale | 2020-11-17 7:37 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 77,945 | $70.14 | $5,467,306 | 2,312,024 (Indirect Direct) | View |
2020-11-09 Sale | 2020-11-12 7:21 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 73,694 | $72.02 | $5,307,353 | 2,514,969 (Indirect Direct) | View |
2020-08-24 Sale | 2020-08-26 5:25 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $58.85 | $1,471,340 | 2,743,663 (Indirect Direct) | View |
2020-07-27 Sale | 2020-07-29 7:41 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 198,296 | $67.27 | $13,338,401 | 2,448,663 (Indirect Direct) | View |
2020-04-08 Sale | 2020-04-10 6:40 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 35,000 | $41.33 | $1,446,700 | 2,813,663 (Indirect Direct) | View |
2020-04-01 Sale | 2020-04-03 6:45 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 4,752 | $37.12 | $176,394 | 2,678,663 (Indirect Direct) | View |
2020-01-13 Sale | 2020-01-15 4:58 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $42.31 | $846,200 | 2,838,415 (Indirect Direct) | View |
2019-11-14 Sale | 2019-11-18 5:39 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $44.76 | $671,400 | 3,083,415 (Indirect Direct) | View |
2019-08-19 Sale | 2019-08-21 5:53 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $47.18 | $943,600 | 2,873,415 (Indirect Direct) | View |
2019-04-22 Sale | 2019-04-24 4:34 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $67.63 | $1,352,600 | 2,893,415 (Indirect Direct) | View |
2019-04-08 Sale | 2019-04-10 4:49 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $64.71 | $970,650 | 2,913,415 (Indirect Direct) | View |
2019-04-01 Sale | 2019-04-03 4:15 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 2,271 | $64.63 | $146,775 | 2,668,415 (Indirect Direct) | View |
2019-01-14 Sale | 2019-01-16 5:38 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 30,000 | $55.42 | $1,662,698 | 3,498,086 (Indirect Direct) | View |
2018-12-10 Sale | 2018-12-12 8:17 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 10,000 | $49.68 | $496,800 | 2,615,686 (Indirect Direct) | View |
2018-11-13 Sale | 2018-11-15 6:38 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 45,000 | $47.65 | $2,144,100 | 2,635,686 (Indirect Direct) | View |
2018-08-15 Sale | 2018-08-17 4:45 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $50.77 | $761,550 | 2,680,686 (Indirect Direct) | View |
2018-06-15 Sale | 2018-06-19 4:35 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 22,193 | $45.52 | $1,010,219 | 2,732,879 (Indirect Direct) | View |
2018-03-15 Sale | 2018-03-19 4:14 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $39.11 | $977,800 | 2,812,572 (Indirect Direct) | View |
2017-11-16 Sale | 2017-11-20 6:24 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 60,000 | $44.05 | $2,643,126 | 2,648,186 (Indirect Direct) | View |
2017-08-29 Sale | 2017-08-31 8:47 pm | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 78,542 | $45.25 | $3,553,682 | 2,578,068 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2022-05-15 Option Award | 2022-05-17 8:16 pm | N/A 2032-05-14 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 55,000 | $0 | 1,866,039 (Direct) | View |
2021-12-06 Exercise | 2021-12-08 5:35 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $4 | 1,818,736 (Direct) | View |
2021-12-06 Exercise | 2021-12-08 5:35 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $0 | 1,818,736 (Direct) | View |
2021-11-24 Gift | 2021-11-29 7:06 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 289,450 | $0 | 1,818,736 (Direct) | View |
2021-11-09 Exercise | 2021-11-12 6:48 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $4 | 2,264,441 (Direct) | View |
2021-11-09 Exercise | 2021-11-12 6:48 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 2,264,441 (Direct) | View |
2021-10-11 Exercise | 2021-10-13 4:36 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $4 | 2,216,538 (Direct) | View |
2021-10-11 Exercise | 2021-10-13 4:36 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $0 | 2,216,538 (Direct) | View |
2021-08-19 Exercise | 2021-08-23 5:22 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $4 | 2,241,538 (Direct) | View |
2021-08-19 Exercise | 2021-08-23 5:22 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $0 | 2,241,538 (Direct) | View |
2021-05-14 Option Award | 2021-05-18 7:25 pm | N/A 2031-05-14 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 55,000 | $0 | 2,266,817 (Direct) | View |
2021-04-22 Exercise | 2021-04-26 5:08 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $4 | 2,361,538 (Direct) | View |
2021-04-22 Exercise | 2021-04-26 5:08 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $0 | 2,361,538 (Direct) | View |
2020-12-31 Ownership | 2021-02-16 4:33 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 0 | $0 | 537,290 (Indirect) | View |
2020-12-31 Ownership | 2021-02-16 4:33 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 19,862 | $0 | 537,290 (Indirect) | View |
2021-01-15 Exercise | 2021-01-20 5:36 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $4 | 2,398,663 (Direct) | View |
2021-01-15 Exercise | 2021-01-20 5:36 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 2,398,663 (Direct) | View |
2020-11-09 Exercise | 2020-11-12 7:21 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $4 | 2,514,969 (Direct) | View |
2020-11-09 Exercise | 2020-11-12 7:21 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 2,514,969 (Direct) | View |
2020-08-24 Exercise | 2020-08-26 5:25 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $4 | 2,743,663 (Direct) | View |
2020-08-24 Exercise | 2020-08-26 5:25 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $0 | 2,743,663 (Direct) | View |
2020-04-08 Exercise | 2020-04-10 6:40 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 35,000 | $4 | 2,813,663 (Direct) | View |
2020-04-08 Exercise | 2020-04-10 6:40 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 35,000 | $0 | 2,813,663 (Direct) | View |
2020-04-01 Option Award | 2020-04-03 6:45 pm | N/A 2030-03-31 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 55,000 | $0 | 2,678,663 (Direct) | View |
2020-04-01 Gift | 2020-04-03 6:45 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 10,000 | $0 | 2,678,663 (Direct) | View |
2020-01-13 Exercise | 2020-01-15 4:58 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $4 | 2,838,415 (Direct) | View |
2020-01-13 Exercise | 2020-01-15 4:58 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $0 | 2,838,415 (Direct) | View |
2019-11-14 Exercise | 2019-11-18 5:39 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $4 | 3,083,415 (Direct) | View |
2019-11-14 Exercise | 2019-11-18 5:39 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 3,083,415 (Direct) | View |
2019-08-19 Exercise | 2019-08-21 5:53 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $4 | 2,873,415 (Direct) | View |
2019-08-19 Exercise | 2019-08-21 5:53 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $0 | 2,873,415 (Direct) | View |
2019-08-19 Gift | 2019-08-21 5:53 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 184,619 | $0 | 2,873,415 (Direct) | View |
2019-04-22 Exercise | 2019-04-24 4:34 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $4 | 2,893,415 (Direct) | View |
2019-04-22 Exercise | 2019-04-24 4:34 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 20,000 | $0 | 2,893,415 (Direct) | View |
2019-04-08 Exercise | 2019-04-10 4:49 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $4 | 2,913,415 (Direct) | View |
2019-04-08 Exercise | 2019-04-10 4:49 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 2,913,415 (Direct) | View |
2019-04-01 Option Award | 2019-04-03 4:15 pm | N/A 2029-03-31 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 55,000 | $0 | 2,668,415 (Direct) | View |
2019-01-14 Exercise | 2019-01-16 5:38 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 30,000 | $4 | 3,498,086 (Direct) | View |
2019-01-14 Exercise | 2019-01-16 5:38 pm | N/A 2023-12-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 30,000 | $0 | 3,498,086 (Direct) | View |
2018-12-10 Gift | 2018-12-12 8:17 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 10,000 | $0 | 2,615,686 (Direct) | View |
2018-11-13 Exercise | 2018-11-15 6:38 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $3.89 | 2,635,686 (Direct) | View |
2018-11-13 Exercise | 2018-11-15 6:38 pm | N/A 2022-07-11 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 2,635,686 (Direct) | View |
2018-08-15 Exercise | 2018-08-17 4:45 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $3.89 | 2,680,686 (Direct) | View |
2018-08-15 Exercise | 2018-08-17 4:45 pm | N/A 2022-07-11 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 15,000 | $0 | 2,680,686 (Direct) | View |
2018-06-15 Exercise | 2018-06-19 4:35 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 22,193 | $3.89 | 2,732,879 (Direct) | View |
2018-06-15 Exercise | 2018-06-19 4:35 pm | N/A 2022-07-11 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 22,193 | $0 | 2,732,879 (Direct) | View |
2018-04-01 Option Award | 2018-04-03 8:54 pm | N/A 2028-03-31 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 55,000 | $0 | 2,695,686 (Direct) | View |
2018-03-15 Exercise | 2018-03-19 4:14 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 25,000 | $3.89 | 2,812,572 (Direct) | View |
2018-03-15 Exercise | 2018-03-19 4:14 pm | N/A 2022-07-11 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 27,500 | $0 | 2,812,572 (Direct) | View |
2018-03-15 Exercise | 2018-03-19 4:14 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 2,500 | $21.7 | 2,812,572 (Direct) | View |
2017-12-31 Ownership | 2018-02-14 4:18 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 0 | $0 | 2,638,186 (Indirect) | View |
2017-12-31 Ownership | 2018-02-14 4:18 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 10,000 | $0 | 2,638,186 (Direct) | View |
2017-11-16 Gift | 2017-11-20 6:24 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 10,000 | $0 | 2,648,186 (Direct) | View |
2017-08-29 Exercise | 2017-08-31 8:47 pm | N/A 2019-06-30 | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 38,592 | $0 | 2,578,068 (Direct) | View |
2017-08-29 Exercise | 2017-08-31 8:47 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 38,592 | $0.41 | 2,578,068 (Direct) | View |
2017-08-29 Gift | 2017-08-31 8:47 pm | N/A N/A | Alarm.com Holdings Inc. | ALRM | Trundle Stephen CEO | 140,118 | $0 | 2,578,068 (Indirect) | View |