Follow the people · Insider
Kevin J. Knopp
Kevin J. Knopp files insider transactions with the SEC as a president and ceo of 908 Devices (MASS). We hold 11 disclosed purchases and sales filed since 22 December 2020, 10 of them in the last 90 days.
- Files forMASS
- Disclosed buys and sells11 in all, 10 in the last 90 days
- Last disclosure17 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 22 December 2020 — 17 August 2026President and CEO · 908 Devices (MASS)125 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 7,622 shares of 908 DevicesSEC Form 417 August 2026Common Stock · traded 13 August 2026 · filed 17 August 2026
- ▼ sold on the open market 20,000 shares of 908 DevicesSEC Form 417 August 2026Common Stock · traded 17 August 2026 · filed 17 August 2026
- ▼ sold on the open market 348 shares of 908 DevicesSEC Form 412 August 2026Common Stock · traded 10 August 2026 · filed 12 August 2026
- ▼ sold on the open market 115,748 shares of 908 DevicesSEC Form 412 August 2026Common Stock · traded 11 August 2026 · filed 12 August 2026
- ▼ sold on the open market 30,170 shares of 908 DevicesSEC Form 412 August 2026Common Stock · traded 11 August 2026 · filed 12 August 2026
- ▼ sold on the open market 2,747 shares of 908 DevicesSEC Form 412 August 2026Common Stock · traded 12 August 2026 · filed 12 August 2026
- ▼ sold on the open market 222 shares of 908 DevicesSEC Form 47 July 2026Common Stock · traded 2 July 2026 · filed 7 July 2026
- ▼ sold on the open market 2,798 shares of 908 DevicesSEC Form 430 June 2026Common Stock · traded 26 June 2026 · filed 30 June 2026
- ▼ sold on the open market 3,422 shares of 908 DevicesSEC Form 425 June 2026Common Stock · traded 23 June 2026 · filed 25 June 2026
- ▼ sold on the open market 40,535 shares of 908 DevicesSEC Form 425 June 2026Common Stock · traded 24 June 2026 · filed 25 June 2026
- ▼ sold on the open market 16,388 shares of 908 DevicesSEC Form 425 June 2026Common Stock · traded 25 June 2026 · filed 25 June 2026
- exercised options over 11,255 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- was granted 205,978 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 2 February 2026 · filed 3 February 2026
- was granted 90,043 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Stock Option (option to buy) · traded 2 February 2026 · filed 3 February 2026
- exercised options over 13,449 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 17,007 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 11,255 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 13,449 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 17,007 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 66,288 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- was granted 205,978 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 2 February 2026 · filed 3 February 2026
- was granted 90,043 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Stock Option (option to buy) · traded 2 February 2026 · filed 3 February 2026
- exercised options over 66,288 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- ▼ sold on the open market 34,764 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 2 February 2026 · filed 3 February 2026
- exercised options over 11,255 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 13,449 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 17,007 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- exercised options over 11,255 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 13,449 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 17,007 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- exercised options over 66,288 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 1 February 2026 · filed 3 February 2026
- ▼ sold on the open market 34,764 shares of 908 DevicesSEC Form 43 February 2026Common Stock · traded 2 February 2026 · filed 3 February 2026
- exercised options over 66,288 shares of 908 Devices (a derivative holding)SEC Form 43 February 2026Restricted Stock Units · traded 1 February 2026 · filed 3 February 2026
- ▲ bought on the open market 15,000 shares of 908 DevicesSEC Form 419 May 2025Common Stock · traded 15 May 2025 · filed 19 May 2025
- ▲ bought on the open market 15,000 shares of 908 DevicesSEC Form 414 May 2025Common Stock · traded 14 May 2025 · filed 14 May 2025
- was granted 90,518 shares of 908 Devices (a derivative holding)SEC Form 45 March 2025Stock Option (option to buy) · traded 3 March 2025 · filed 5 March 2025
- was granted 198,864 shares of 908 Devices (a derivative holding)SEC Form 45 March 2025Restricted Stock Units · traded 3 March 2025 · filed 5 March 2025
- exercised options over 11,254 shares of 908 Devices (a derivative holding)SEC Form 44 February 2025Restricted Stock Units · traded 1 February 2025 · filed 4 February 2025
- exercised options over 13,448 shares of 908 Devices (a derivative holding)SEC Form 44 February 2025Restricted Stock Units · traded 1 February 2025 · filed 4 February 2025
- exercised options over 17,007 shares of 908 Devices (a derivative holding)SEC Form 44 February 2025Restricted Stock Units · traded 1 February 2025 · filed 4 February 2025
- exercised options over 11,254 shares of 908 DevicesSEC Form 44 February 2025Common Stock · traded 1 February 2025 · filed 4 February 2025
- exercised options over 13,448 shares of 908 DevicesSEC Form 44 February 2025Common Stock · traded 1 February 2025 · filed 4 February 2025
- exercised options over 17,007 shares of 908 DevicesSEC Form 44 February 2025Common Stock · traded 1 February 2025 · filed 4 February 2025
- ▼ sold on the open market 4,318 shares of 908 DevicesSEC Form 44 February 2025Common Stock · traded 3 February 2025 · filed 4 February 2025
- ▼ sold on the open market 5,159 shares of 908 DevicesSEC Form 44 February 2025Common Stock · traded 3 February 2025 · filed 4 February 2025
- ▼ sold on the open market 6,524 shares of 908 DevicesSEC Form 44 February 2025Common Stock · traded 3 February 2025 · filed 4 February 2025
- exercised options over 47,418 shares of 908 Devices (a derivative holding)SEC Form 416 December 2024Stock Option (Right to Buy) · traded 13 December 2024 · filed 16 December 2024
- exercised options over 110,626 shares of 908 Devices (a derivative holding)SEC Form 416 December 2024Stock Option (Right to Buy) · traded 13 December 2024 · filed 16 December 2024
- exercised options over 47,418 shares of 908 DevicesSEC Form 416 December 2024Common Stock · traded 13 December 2024 · filed 16 December 2024
- exercised options over 110,626 shares of 908 DevicesSEC Form 416 December 2024Common Stock · traded 13 December 2024 · filed 16 December 2024
- ▲ bought on the open market 10,000 shares of 908 DevicesSEC Form 413 May 2024Common Stock · traded 13 May 2024 · filed 13 May 2024
- ▲ bought on the open market 10,000 shares of 908 DevicesSEC Form 410 May 2024Common Stock · traded 10 May 2024 · filed 10 May 2024
- ▲ bought on the open market 10,000 shares of 908 DevicesSEC Form 49 May 2024Common Stock · traded 9 May 2024 · filed 9 May 2024
- ▲ bought on the open market 10,000 shares of 908 DevicesSEC Form 48 May 2024Common Stock · traded 8 May 2024 · filed 8 May 2024
- ▲ bought on the open market 10,000 shares of 908 DevicesSEC Form 47 May 2024Common Stock · traded 7 May 2024 · filed 7 May 2024
- exercised options over 47,000 shares of 908 Devices (a derivative holding)SEC Form 416 April 2024Stock Option (Right to Buy) · traded 16 April 2024 · filed 16 April 2024
- exercised options over 47,000 shares of 908 DevicesSEC Form 416 April 2024Common Stock · traded 16 April 2024 · filed 16 April 2024
- was granted 92,937 shares of 908 Devices (a derivative holding)SEC Form 45 March 2024Stock Option (option to buy) · traded 1 March 2024 · filed 5 March 2024
- was granted 68,028 shares of 908 Devices (a derivative holding)SEC Form 45 March 2024Restricted Stock Units · traded 1 March 2024 · filed 5 March 2024
- exercised options over 11,255 shares of 908 Devices (a derivative holding)SEC Form 42 February 2024Restricted Stock Units · traded 1 February 2024 · filed 2 February 2024
- exercised options over 13,449 shares of 908 Devices (a derivative holding)SEC Form 42 February 2024Restricted Stock Units · traded 1 February 2024 · filed 2 February 2024
- exercised options over 11,255 shares of 908 DevicesSEC Form 42 February 2024Common Stock · traded 1 February 2024 · filed 2 February 2024
- exercised options over 13,449 shares of 908 DevicesSEC Form 42 February 2024Common Stock · traded 1 February 2024 · filed 2 February 2024
- ▼ sold on the open market 4,099 shares of 908 DevicesSEC Form 42 February 2024Common Stock · traded 1 February 2024 · filed 2 February 2024
- ▼ sold on the open market 4,972 shares of 908 DevicesSEC Form 42 February 2024Common Stock · traded 1 February 2024 · filed 2 February 2024
- exercised options over 28,500 shares of 908 Devices (a derivative holding)SEC Form 45 June 2023Stock Option (option to buy) · traded 5 June 2023 · filed 5 June 2023
- exercised options over 28,500 shares of 908 DevicesSEC Form 45 June 2023Common Stock · traded 5 June 2023 · filed 5 June 2023
- ▼ sold on the open market 60,000 shares of 908 DevicesSEC Form 425 May 2023Common Stock, par value $0.001 · traded 23 May 2023 · filed 25 May 2023
- was granted 53,794 shares of 908 Devices (a derivative holding)SEC Form 416 March 2023Restricted Stock Unit · traded 1 March 2023 · filed 16 March 2023
- was granted 53,794 shares of 908 Devices (a derivative holding)SEC Form 416 March 2023Performance-Based Restricted Stock Unit · traded 1 March 2023 · filed 16 March 2023
- ▼ sold on the open market 15,158 shares of 908 DevicesSEC Form 417 February 2023Common Stock, par value $0.001 · traded 15 February 2023 · filed 17 February 2023
- ▼ sold on the open market 4,842 shares of 908 DevicesSEC Form 417 February 2023Common Stock, par value $0.001 · traded 16 February 2023 · filed 17 February 2023
- exercised options over 11,255 shares of 908 Devices (a derivative holding)SEC Form 43 February 2023Restricted Stock Unit · traded 1 February 2023 · filed 3 February 2023
- exercised options over 11,255 shares of 908 DevicesSEC Form 43 February 2023Common Stock · traded 1 February 2023 · filed 3 February 2023
- ▼ sold on the open market 4,049 shares of 908 DevicesSEC Form 43 February 2023Common Stock · traded 1 February 2023 · filed 3 February 2023
- ▼ sold on the open market 40,000 shares of 908 DevicesSEC Form 43 February 2023Common Stock · traded 2 February 2023 · filed 3 February 2023
- ▼ sold on the open market 12,368 shares of 908 DevicesSEC Form 417 November 2022Common Stock, par value $0.001 · traded 15 November 2022 · filed 17 November 2022
- ▼ sold on the open market 6,619 shares of 908 DevicesSEC Form 417 November 2022Common Stock, par value $0.001 · traded 15 November 2022 · filed 17 November 2022
- ▼ sold on the open market 1,013 shares of 908 DevicesSEC Form 417 November 2022Common Stock, par value $0.001 · traded 15 November 2022 · filed 17 November 2022
- ▼ sold on the open market 11,200 shares of 908 DevicesSEC Form 419 October 2022Common Stock, par value $0.001 · traded 17 October 2022 · filed 19 October 2022
- ▼ sold on the open market 18,800 shares of 908 DevicesSEC Form 419 October 2022Common Stock, par value $0.001 · traded 18 October 2022 · filed 19 October 2022
- ▼ sold on the open market 30,000 shares of 908 DevicesSEC Form 419 September 2022Common Stock, par value $0.001 · traded 15 September 2022 · filed 19 September 2022
- ▼ sold on the open market 27,627 shares of 908 DevicesSEC Form 417 August 2022Common Stock, par value $0.001 · traded 15 August 2022 · filed 17 August 2022
- ▼ sold on the open market 2,373 shares of 908 DevicesSEC Form 417 August 2022Common Stock, par value $0.001 · traded 15 August 2022 · filed 17 August 2022
- ▼ sold on the open market 25,910 shares of 908 DevicesSEC Form 49 August 2022Common Stock, par value $0.001 · traded 5 August 2022 · filed 9 August 2022
- ▼ sold on the open market 286 shares of 908 DevicesSEC Form 49 August 2022Common Stock, par value $0.001 · traded 8 August 2022 · filed 9 August 2022
- ▼ sold on the open market 5,700 shares of 908 DevicesSEC Form 41 August 2022Common Stock, par value $0.001 · traded 28 July 2022 · filed 1 August 2022
- ▼ sold on the open market 18,000 shares of 908 DevicesSEC Form 41 August 2022Common Stock, par value $0.001 · traded 29 July 2022 · filed 1 August 2022
- ▼ sold on the open market 14,647 shares of 908 DevicesSEC Form 41 August 2022Common Stock, par value $0.001 · traded 1 August 2022 · filed 1 August 2022
- ▼ sold on the open market 200 shares of 908 DevicesSEC Form 425 July 2022Common Stock, par value $0.001 · traded 21 July 2022 · filed 25 July 2022
- ▼ sold on the open market 11,769 shares of 908 DevicesSEC Form 419 July 2022Common Stock, par value $0.001 · traded 15 July 2022 · filed 19 July 2022
- ▼ sold on the open market 18,231 shares of 908 DevicesSEC Form 419 July 2022Common Stock, par value $0.001 · traded 15 July 2022 · filed 19 July 2022
- ▼ sold on the open market 1,000 shares of 908 DevicesSEC Form 48 July 2022Common Stock, par value $0.001 · traded 6 July 2022 · filed 8 July 2022
- ▼ sold on the open market 453 shares of 908 DevicesSEC Form 48 July 2022Common Stock, par value $0.001 · traded 8 July 2022 · filed 8 July 2022
- ▼ sold on the open market 9,200 shares of 908 DevicesSEC Form 422 June 2022Common Stock, par value $0.001 · traded 21 June 2022 · filed 22 June 2022
- ▼ sold on the open market 18,800 shares of 908 DevicesSEC Form 417 June 2022Common Stock, par value $0.001 · traded 15 June 2022 · filed 17 June 2022
- ▼ sold on the open market 2,000 shares of 908 DevicesSEC Form 417 June 2022Common Stock, par value $0.001 · traded 15 June 2022 · filed 17 June 2022
- was granted 74,776 shares of 908 Devices (a derivative holding)SEC Form 43 March 2022Stock Option (option to buy) · traded 1 March 2022 · filed 3 March 2022
- was granted 45,019 shares of 908 Devices (a derivative holding)SEC Form 43 March 2022Restricted Stock Unit · traded 1 March 2022 · filed 3 March 2022
- ▼ sold on the open market 3,897 shares of 908 DevicesSEC Form 42 November 2021Common Stock, par value $0.001 · traded 1 November 2021 · filed 2 November 2021
- ▼ sold on the open market 7,775 shares of 908 DevicesSEC Form 42 November 2021Common Stock, par value $0.001 · traded 1 November 2021 · filed 2 November 2021
- ▼ sold on the open market 8,328 shares of 908 DevicesSEC Form 42 November 2021Common Stock, par value $0.001 · traded 1 November 2021 · filed 2 November 2021
- ▼ sold on the open market 9,699 shares of 908 DevicesSEC Form 45 October 2021Common Stock, par value $0.001 · traded 1 October 2021 · filed 5 October 2021
- ▼ sold on the open market 4,829 shares of 908 DevicesSEC Form 45 October 2021Common Stock, par value $0.001 · traded 1 October 2021 · filed 5 October 2021
- ▼ sold on the open market 5,472 shares of 908 DevicesSEC Form 45 October 2021Common Stock, par value $0.001 · traded 1 October 2021 · filed 5 October 2021
- ▼ sold on the open market 5,599 shares of 908 DevicesSEC Form 43 September 2021Common Stock, par value $0.001 · traded 1 September 2021 · filed 3 September 2021
- ▼ sold on the open market 10,818 shares of 908 DevicesSEC Form 43 September 2021Common Stock, par value $0.001 · traded 1 September 2021 · filed 3 September 2021
- ▼ sold on the open market 3,583 shares of 908 DevicesSEC Form 43 September 2021Common Stock, par value $0.001 · traded 1 September 2021 · filed 3 September 2021
- ▼ sold on the open market 3,443 shares of 908 DevicesSEC Form 418 August 2021Common Stock, par value $0.001 · traded 16 August 2021 · filed 18 August 2021
- ▼ sold on the open market 6,035 shares of 908 DevicesSEC Form 418 August 2021Common Stock, par value $0.001 · traded 16 August 2021 · filed 18 August 2021
- ▼ sold on the open market 9,522 shares of 908 DevicesSEC Form 418 August 2021Common Stock, par value $0.001 · traded 16 August 2021 · filed 18 August 2021
- ▼ sold on the open market 4,000 shares of 908 DevicesSEC Form 418 August 2021Common Stock, par value $0.001 · traded 17 August 2021 · filed 18 August 2021
- ▼ sold on the open market 12,000 shares of 908 DevicesSEC Form 418 August 2021Common Stock, par value $0.001 · traded 18 August 2021 · filed 18 August 2021
- converted 37,845 shares of 908 Devices (a derivative holding)SEC Form 430 April 2021Series A Preferred Stock · traded 22 December 2020 · filed 30 April 2021
- converted 25,229 shares of 908 Devices (a derivative holding)SEC Form 430 April 2021Series A Preferred Stock · traded 22 December 2020 · filed 30 April 2021
- converted 12,688 shares of 908 Devices (a derivative holding)SEC Form 430 April 2021Series B Preferred Stock · traded 22 December 2020 · filed 30 April 2021
- converted 8,459 shares of 908 Devices (a derivative holding)SEC Form 430 April 2021Series B Preferred Stock · traded 22 December 2020 · filed 30 April 2021
- converted 2,638 shares of 908 Devices (a derivative holding)SEC Form 430 April 2021Series D Preferred Stock · traded 22 December 2020 · filed 30 April 2021
- converted 1,758 shares of 908 Devices (a derivative holding)SEC Form 430 April 2021Series D Preferred Stock · traded 22 December 2020 · filed 30 April 2021
- converted 53,171 shares of 908 DevicesSEC Form 430 April 2021Common Stock, par value $0.001 · traded 22 December 2020 · filed 30 April 2021
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.