Follow the people · Insider
Stephen Trundle
Stephen Trundle files insider transactions with the SEC as a chief executive officer of Alarm.com Holdings (ALRM). We hold 3 disclosed purchases and sales filed since 2 July 2015, 1 of them in the last 90 days.
- Files forALRM
- Disclosed buys and sells3 in all, 1 in the last 90 days
- Last disclosure4 September 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 1 July 2015 — 2 September 2026Chief Executive Officer · Alarm.com Holdings (ALRM)220 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- gave away 2,000 shares of Alarm.com HoldingsSEC Form 44 September 2026Common Stock · traded 2 September 2026 · filed 4 September 2026
- exercised options over 50,000 shares of Alarm.com HoldingsSEC Form 425 August 2026Common Stock · traded 24 August 2026 · filed 25 August 2026
- ▼ sold on the open market 50,000 shares of Alarm.com HoldingsSEC Form 425 August 2026Common Stock · traded 24 August 2026 · filed 25 August 2026
- exercised options over 50,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 425 August 2026Stock Option (Right to Buy) · traded 24 August 2026 · filed 25 August 2026
- ▼ sold on the open market 6,073 shares of Alarm.com HoldingsSEC Form 428 May 2026Common Stock · traded 26 May 2026 · filed 28 May 2026
- ▼ sold on the open market 2,944 shares of Alarm.com HoldingsSEC Form 420 May 2026Common Stock · traded 18 May 2026 · filed 20 May 2026
- was granted 65,000 shares of Alarm.com HoldingsSEC Form 410 April 2026Common Stock · traded 8 April 2026 · filed 10 April 2026
- ▲ bought on the open market 3,531 shares of Alarm.com HoldingsSEC Form 420 November 2025Common Stock · traded 18 November 2025 · filed 20 November 2025
- ▲ bought on the open market 12,469 shares of Alarm.com HoldingsSEC Form 420 November 2025Common Stock · traded 19 November 2025 · filed 20 November 2025
- ▲ bought on the open market 9,900 shares of Alarm.com HoldingsSEC Form 420 November 2025Common Stock · traded 20 November 2025 · filed 20 November 2025
- ▲ bought on the open market 100 shares of Alarm.com HoldingsSEC Form 420 November 2025Common Stock · traded 20 November 2025 · filed 20 November 2025
- was granted 40,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 427 May 2025Employee Stock Option (Right to Buy) · traded 22 May 2025 · filed 27 May 2025
- was granted 25,000 shares of Alarm.com HoldingsSEC Form 427 May 2025Common Stock · traded 22 May 2025 · filed 27 May 2025
- ▼ sold on the open market 3,644 shares of Alarm.com HoldingsSEC Form 427 May 2025Common Stock · traded 23 May 2025 · filed 27 May 2025
- ▼ sold on the open market 3,626 shares of Alarm.com HoldingsSEC Form 416 May 2025Common Stock · traded 16 May 2025 · filed 16 May 2025
- ▼ sold on the open market 1,553 shares of Alarm.com HoldingsSEC Form 44 April 2025Common Stock · traded 2 April 2025 · filed 4 April 2025
- exercised options over 47,500 shares of Alarm.com Holdings (a derivative holding)SEC Form 411 December 2024Stock Option (Right to Buy) · traded 10 December 2024 · filed 11 December 2024
- exercised options over 47,500 shares of Alarm.com HoldingsSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- ▼ sold on the open market 45,501 shares of Alarm.com HoldingsSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- ▼ sold on the open market 1,999 shares of Alarm.com HoldingsSEC Form 411 December 2024Common Stock · traded 10 December 2024 · filed 11 December 2024
- was granted 30,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 424 May 2024Employee Stock Option (Right to Buy) · traded 22 May 2024 · filed 24 May 2024
- was granted 25,000 shares of Alarm.com HoldingsSEC Form 424 May 2024Common Stock · traded 22 May 2024 · filed 24 May 2024
- had shares withheld for tax on 2,255 shares of Alarm.com HoldingsSEC Form 424 May 2024Common Stock · traded 22 May 2024 · filed 24 May 2024
- had shares withheld for tax on 4,512 shares of Alarm.com HoldingsSEC Form 417 May 2024Common Stock · traded 15 May 2024 · filed 17 May 2024
- gave away 5,000 shares of Alarm.com HoldingsSEC Form 43 April 2024Common Stock · traded 1 March 2024 · filed 3 April 2024
- ▼ sold on the open market 3,217 shares of Alarm.com HoldingsSEC Form 43 April 2024Common Stock · traded 2 April 2024 · filed 3 April 2024
- ▼ sold on the open market 49,400 shares of Alarm.com HoldingsSEC Form 427 February 2024Common Stock · traded 23 February 2024 · filed 27 February 2024
- ▼ sold on the open market 600 shares of Alarm.com HoldingsSEC Form 427 February 2024Common Stock · traded 23 February 2024 · filed 27 February 2024
- was granted 30,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 424 May 2023Employee Stock Option (Right to Buy) · traded 22 May 2023 · filed 24 May 2023
- was granted 25,000 shares of Alarm.com HoldingsSEC Form 424 May 2023Common Stock · traded 22 May 2023 · filed 24 May 2023
- ▼ sold on the open market 4,694 shares of Alarm.com HoldingsSEC Form 418 May 2023Common Stock · traded 16 May 2023 · filed 18 May 2023
- ▼ sold on the open market 4,618 shares of Alarm.com HoldingsSEC Form 45 April 2023Common Stock · traded 3 April 2023 · filed 5 April 2023
- ▼ sold on the open market 169 shares of Alarm.com HoldingsSEC Form 45 April 2023Common Stock · traded 3 April 2023 · filed 5 April 2023
- was granted 30,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 417 May 2022Employee Stock Option (Right to Buy) · traded 15 May 2022 · filed 17 May 2022
- was granted 25,000 shares of Alarm.com HoldingsSEC Form 417 May 2022Common Stock · traded 15 May 2022 · filed 17 May 2022
- ▼ sold on the open market 1,930 shares of Alarm.com HoldingsSEC Form 417 May 2022Common Stock · traded 16 May 2022 · filed 17 May 2022
- ▼ sold on the open market 462 shares of Alarm.com HoldingsSEC Form 417 May 2022Common Stock · traded 16 May 2022 · filed 17 May 2022
- ▼ sold on the open market 5,305 shares of Alarm.com HoldingsSEC Form 46 April 2022Common Stock · traded 4 April 2022 · filed 6 April 2022
- exercised options over 25,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 48 December 2021Stock Option (Right to Buy) · traded 6 December 2021 · filed 8 December 2021
- exercised options over 25,000 shares of Alarm.com HoldingsSEC Form 48 December 2021Common Stock · traded 6 December 2021 · filed 8 December 2021
- ▼ sold on the open market 3,462 shares of Alarm.com HoldingsSEC Form 48 December 2021Common Stock · traded 6 December 2021 · filed 8 December 2021
- ▼ sold on the open market 19,821 shares of Alarm.com HoldingsSEC Form 48 December 2021Common Stock · traded 6 December 2021 · filed 8 December 2021
- ▼ sold on the open market 1,717 shares of Alarm.com HoldingsSEC Form 48 December 2021Common Stock · traded 6 December 2021 · filed 8 December 2021
- gave away 32,420 shares of Alarm.com HoldingsSEC Form 429 November 2021Common Stock · traded 24 November 2021 · filed 29 November 2021
- gave away 252,030 shares of Alarm.com HoldingsSEC Form 429 November 2021Common Stock · traded 24 November 2021 · filed 29 November 2021
- gave away 5,000 shares of Alarm.com HoldingsSEC Form 429 November 2021Common Stock · traded 26 November 2021 · filed 29 November 2021
- ▼ sold on the open market 3,410 shares of Alarm.com HoldingsSEC Form 422 November 2021Common Stock · traded 18 November 2021 · filed 22 November 2021
- ▼ sold on the open market 2,804 shares of Alarm.com HoldingsSEC Form 422 November 2021Common Stock · traded 19 November 2021 · filed 22 November 2021
- ▼ sold on the open market 105 shares of Alarm.com HoldingsSEC Form 422 November 2021Common Stock · traded 19 November 2021 · filed 22 November 2021
- ▼ sold on the open market 9,222 shares of Alarm.com HoldingsSEC Form 422 November 2021Common Stock · traded 22 November 2021 · filed 22 November 2021
- ▼ sold on the open market 4,053 shares of Alarm.com HoldingsSEC Form 422 November 2021Common Stock · traded 22 November 2021 · filed 22 November 2021
- ▼ sold on the open market 100 shares of Alarm.com HoldingsSEC Form 417 November 2021Common Stock · traded 15 November 2021 · filed 17 November 2021
- ▼ sold on the open market 10,477 shares of Alarm.com HoldingsSEC Form 417 November 2021Common Stock · traded 15 November 2021 · filed 17 November 2021
- ▼ sold on the open market 13,267 shares of Alarm.com HoldingsSEC Form 417 November 2021Common Stock · traded 16 November 2021 · filed 17 November 2021
- ▼ sold on the open market 9,158 shares of Alarm.com HoldingsSEC Form 417 November 2021Common Stock · traded 16 November 2021 · filed 17 November 2021
- ▼ sold on the open market 7,581 shares of Alarm.com HoldingsSEC Form 417 November 2021Common Stock · traded 17 November 2021 · filed 17 November 2021
- ▼ sold on the open market 300 shares of Alarm.com HoldingsSEC Form 417 November 2021Common Stock · traded 17 November 2021 · filed 17 November 2021
- exercised options over 1,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 412 November 2021Stock Option (Right to Buy) · traded 9 November 2021 · filed 12 November 2021
- exercised options over 7,222 shares of Alarm.com Holdings (a derivative holding)SEC Form 412 November 2021Stock Option (Right to Buy) · traded 11 November 2021 · filed 12 November 2021
- exercised options over 6,778 shares of Alarm.com Holdings (a derivative holding)SEC Form 412 November 2021Stock Option (Right to Buy) · traded 12 November 2021 · filed 12 November 2021
- exercised options over 1,000 shares of Alarm.com HoldingsSEC Form 412 November 2021Common Stock · traded 9 November 2021 · filed 12 November 2021
- ▼ sold on the open market 1,000 shares of Alarm.com HoldingsSEC Form 412 November 2021Common Stock · traded 9 November 2021 · filed 12 November 2021
- exercised options over 7,222 shares of Alarm.com HoldingsSEC Form 412 November 2021Common Stock · traded 11 November 2021 · filed 12 November 2021
- ▼ sold on the open market 7,222 shares of Alarm.com HoldingsSEC Form 412 November 2021Common Stock · traded 11 November 2021 · filed 12 November 2021
- exercised options over 6,778 shares of Alarm.com HoldingsSEC Form 412 November 2021Common Stock · traded 12 November 2021 · filed 12 November 2021
- ▼ sold on the open market 14,653 shares of Alarm.com HoldingsSEC Form 412 November 2021Common Stock · traded 12 November 2021 · filed 12 November 2021
- exercised options over 25,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 413 October 2021Stock Option (Right to Buy) · traded 11 October 2021 · filed 13 October 2021
- exercised options over 25,000 shares of Alarm.com HoldingsSEC Form 413 October 2021Common Stock · traded 11 October 2021 · filed 13 October 2021
- ▼ sold on the open market 25,000 shares of Alarm.com HoldingsSEC Form 413 October 2021Common Stock · traded 11 October 2021 · filed 13 October 2021
- exercised options over 25,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 423 August 2021Stock Option (Right to Buy) · traded 19 August 2021 · filed 23 August 2021
- exercised options over 25,000 shares of Alarm.com HoldingsSEC Form 423 August 2021Common Stock · traded 19 August 2021 · filed 23 August 2021
- ▼ sold on the open market 600 shares of Alarm.com HoldingsSEC Form 423 August 2021Common Stock · traded 19 August 2021 · filed 23 August 2021
- ▼ sold on the open market 24,400 shares of Alarm.com HoldingsSEC Form 423 August 2021Common Stock · traded 19 August 2021 · filed 23 August 2021
- ▼ sold on the open market 8,425 shares of Alarm.com HoldingsSEC Form 48 June 2021Common Stock · traded 4 June 2021 · filed 8 June 2021
- ▼ sold on the open market 10,318 shares of Alarm.com HoldingsSEC Form 48 June 2021Common Stock · traded 7 June 2021 · filed 8 June 2021
- ▼ sold on the open market 1,257 shares of Alarm.com HoldingsSEC Form 48 June 2021Common Stock · traded 7 June 2021 · filed 8 June 2021
- ▼ sold on the open market 12,561 shares of Alarm.com HoldingsSEC Form 42 June 2021Common Stock · traded 28 May 2021 · filed 2 June 2021
- ▼ sold on the open market 20,860 shares of Alarm.com HoldingsSEC Form 42 June 2021Common Stock · traded 1 June 2021 · filed 2 June 2021
- ▼ sold on the open market 203 shares of Alarm.com HoldingsSEC Form 42 June 2021Common Stock · traded 1 June 2021 · filed 2 June 2021
- ▼ sold on the open market 6,655 shares of Alarm.com HoldingsSEC Form 42 June 2021Common Stock · traded 2 June 2021 · filed 2 June 2021
- was granted 30,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 418 May 2021Employee Stock Option (Right to Buy) · traded 15 May 2021 · filed 18 May 2021
- ▼ sold on the open market 14,087 shares of Alarm.com HoldingsSEC Form 418 May 2021Common Stock · traded 14 May 2021 · filed 18 May 2021
- was granted 25,000 shares of Alarm.com HoldingsSEC Form 418 May 2021Common Stock · traded 15 May 2021 · filed 18 May 2021
- ▼ sold on the open market 12,607 shares of Alarm.com HoldingsSEC Form 411 May 2021Common Stock · traded 7 May 2021 · filed 11 May 2021
- ▼ sold on the open market 12,906 shares of Alarm.com HoldingsSEC Form 411 May 2021Common Stock · traded 7 May 2021 · filed 11 May 2021
- ▼ sold on the open market 4,870 shares of Alarm.com HoldingsSEC Form 411 May 2021Common Stock · traded 7 May 2021 · filed 11 May 2021
- ▼ sold on the open market 14,953 shares of Alarm.com HoldingsSEC Form 411 May 2021Common Stock · traded 11 May 2021 · filed 11 May 2021
- ▼ sold on the open market 298 shares of Alarm.com HoldingsSEC Form 411 May 2021Common Stock · traded 11 May 2021 · filed 11 May 2021
- exercised options over 20,000 shares of Alarm.com HoldingsSEC Form 426 April 2021Common Stock · traded 22 April 2021 · filed 26 April 2021
- ▼ sold on the open market 8,000 shares of Alarm.com HoldingsSEC Form 426 April 2021Common Stock · traded 22 April 2021 · filed 26 April 2021
- ▼ sold on the open market 10,809 shares of Alarm.com HoldingsSEC Form 426 April 2021Common Stock · traded 22 April 2021 · filed 26 April 2021
- ▼ sold on the open market 1,191 shares of Alarm.com HoldingsSEC Form 426 April 2021Common Stock · traded 22 April 2021 · filed 26 April 2021
- exercised options over 20,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 426 April 2021Stock Option (Right to Buy) · traded 22 April 2021 · filed 26 April 2021
- ▼ sold on the open market 6,717 shares of Alarm.com HoldingsSEC Form 47 April 2021Common Stock · traded 5 April 2021 · filed 7 April 2021
- ▼ sold on the open market 408 shares of Alarm.com HoldingsSEC Form 47 April 2021Common Stock · traded 5 April 2021 · filed 7 April 2021
- gave away 9,862 shares of Alarm.com HoldingsSEC Form 416 February 2021Common Stock · traded 29 December 2020 · filed 16 February 2021
- gave away 9,862 shares of Alarm.com HoldingsSEC Form 416 February 2021Common Stock · traded 29 December 2020 · filed 16 February 2021
- gave away 10,000 shares of Alarm.com HoldingsSEC Form 416 February 2021Common Stock · traded 24 May 2019 · filed 16 February 2021
- exercised options over 15,000 shares of Alarm.com HoldingsSEC Form 420 January 2021Common Stock · traded 15 January 2021 · filed 20 January 2021
- ▼ sold on the open market 3,950 shares of Alarm.com HoldingsSEC Form 420 January 2021Common Stock · traded 15 January 2021 · filed 20 January 2021
- ▼ sold on the open market 5,100 shares of Alarm.com HoldingsSEC Form 420 January 2021Common Stock · traded 15 January 2021 · filed 20 January 2021
- ▼ sold on the open market 5,950 shares of Alarm.com HoldingsSEC Form 420 January 2021Common Stock · traded 15 January 2021 · filed 20 January 2021
- exercised options over 15,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 420 January 2021Stock Option (Right to Buy) · traded 15 January 2021 · filed 20 January 2021
- ▼ sold on the open market 17,435 shares of Alarm.com HoldingsSEC Form 420 November 2020Common Stock · traded 18 November 2020 · filed 20 November 2020
- ▼ sold on the open market 5,926 shares of Alarm.com HoldingsSEC Form 420 November 2020Common Stock · traded 18 November 2020 · filed 20 November 2020
- ▼ sold on the open market 34,348 shares of Alarm.com HoldingsSEC Form 417 November 2020Common Stock · traded 13 November 2020 · filed 17 November 2020
- ▼ sold on the open market 237 shares of Alarm.com HoldingsSEC Form 417 November 2020Common Stock · traded 13 November 2020 · filed 17 November 2020
- ▼ sold on the open market 14,221 shares of Alarm.com HoldingsSEC Form 417 November 2020Common Stock · traded 16 November 2020 · filed 17 November 2020
- ▼ sold on the open market 28,513 shares of Alarm.com HoldingsSEC Form 417 November 2020Common Stock · traded 17 November 2020 · filed 17 November 2020
- ▼ sold on the open market 626 shares of Alarm.com HoldingsSEC Form 417 November 2020Common Stock · traded 17 November 2020 · filed 17 November 2020
- exercised options over 15,000 shares of Alarm.com Holdings (a derivative holding)SEC Form 412 November 2020Stock Option (Right to Buy) · traded 9 November 2020 · filed 12 November 2020
- exercised options over 15,000 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 9 November 2020 · filed 12 November 2020
- ▼ sold on the open market 10,600 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 9 November 2020 · filed 12 November 2020
- ▼ sold on the open market 1,700 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 9 November 2020 · filed 12 November 2020
- ▼ sold on the open market 2,700 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 9 November 2020 · filed 12 November 2020
- ▼ sold on the open market 4,848 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 10 November 2020 · filed 12 November 2020
- ▼ sold on the open market 38,988 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 11 November 2020 · filed 12 November 2020
- ▼ sold on the open market 9,934 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 11 November 2020 · filed 12 November 2020
- ▼ sold on the open market 200 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 11 November 2020 · filed 12 November 2020
- ▼ sold on the open market 4,724 shares of Alarm.com HoldingsSEC Form 412 November 2020Common Stock · traded 12 November 2020 · filed 12 November 2020
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.