908 Devices Inc. (MASS)

Latest Insider Confidence Score

2026Q1

48.5
Bearish

Company insider confidence (by quarter)

2020Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Crandell Keith Director 5,725,045 Jun 14, 2024
AWM Investment Company, Inc. — 5,199,924 Mar 14, 2025
Kedar Sharon Director 977,091 Dec 22, 2020
Brown Christopher D. Chief Product Officer 962,122 Jun 18, 2025
Knopp Kevin J. CEO 541,223 May 13, 2024

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 6, 2026 Kenneweg John SVP, Sales & Product Marketing Neutral 52.5 - 0.00% ✗ -
Mar 5, 2026 Levine Mark S. Chief Legal and Admin. Officer Neutral 52.5 - 0.00% ✗ -
Mar 2, 2026 Mar 5, 2026 McCallion Kevin J. SVP, Products and Production Sell 57.5 -7 -0.02% ✓ $49
Mar 2, 2026 Mar 4, 2026 McCallion Kevin J. SVP, Products and Production Sell 57.5 -7 -0.02% ✓ $49
Mar 4, 2026 McCallion Kevin J. SVP, Products and Production Neutral 52.5 - 0.00% ✗ -
Feb 1, 2026 Feb 3, 2026 Brown Christopher D. Director Neutral 52.5 - 0.00% ✗ -
Feb 1, 2026 Feb 3, 2026 Knopp Kevin J. CEO Sell 42.5 -34,764 -2.53% ✗ $214.8K
Feb 1, 2026 Feb 3, 2026 Griffith Joseph H. IV CFO Sell 42.5 -23,175 -14.21% ✗ $143.2K
Oct 14, 2025 Feb 3, 2026 Spoto Mark Director Neutral 77.5 +928 1.19% ✗ -
Oct 2, 2025 Oct 6, 2025 Griffith Joseph H. IV CFO Sell 36.3 -5,000 -5.11% ✓ $45.2K
Sep 19, 2025 Sep 23, 2025 Griffith Joseph H. IV CFO Sell 41.3 -5,000 -4.86% ✓ $35.3K
Aug 1, 2025 Aug 18, 2025 Vann Brandi C Director Neutral 52.5 - 0.00% ✗ -
Aug 18, 2025 Vann Brandi C Director Neutral 52.5 - 0.00% ✗ -
Jun 25, 2025 Jun 27, 2025 Leonhart Michele M. Director Neutral 52.5 - 0.00% ✗ -
Jun 18, 2025 Brown Christopher D. Director Neutral 52.5 - 0.00% ✗ -
Jun 16, 2025 Jun 18, 2025 Turner Michael S. Chief Legal & Admin Officer Sell 10.0 -24,603 -100.00% ✓ $184.8K
Jun 12, 2025 Jun 13, 2025 Leonhart Michele M. Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 HRUSOVSKY E KEVIN Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 Hunt Anthony Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 George Jeffrey P. Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 ELOI FENEL M Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 Eisenberg Marcia Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 CRANDELL KEITH Director Neutral 52.5 - 0.00% ✗ -
Jun 11, 2025 Jun 13, 2025 Spoto Mark Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 Griffith Joseph H. IV CFO Sell 36.3 -6,940 -6.32% ✓ $49.1K
May 15, 2025 May 19, 2025 Knopp Kevin J. CEO Buy 82.5 +15,000 1.20% ✗ $66.6K
May 14, 2025 May 15, 2025 Spoto Mark Director Buy 91.3 +10,000 17.68% ✗ $42.9K
May 14, 2025 May 14, 2025 Knopp Kevin J. CEO Buy 82.5 +15,000 1.22% ✗ $64.8K
Mar 14, 2025 AWM Investment Company, Inc. 10% Owner Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 5, 2025 Knopp Kevin J. CEO Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 5, 2025 Griffith Joseph H. IV CFO Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 5, 2025 Turner Michael S. Chief Legal & Admin Officer Neutral 52.5 - 0.00% ✗ -
Mar 2, 2025 Mar 4, 2025 Hunt Anthony Director Neutral 52.5 - 0.00% ✗ -
Feb 1, 2025 Feb 4, 2025 Griffith Joseph H. IV CFO Sell 46.3 -10,236 -8.52% ✗ $24K
Feb 1, 2025 Feb 4, 2025 Turner Michael S. Chief Legal & Admin Officer Sell 46.3 -9,672 -28.22% ✗ $22.5K
Feb 1, 2025 Feb 4, 2025 Knopp Kevin J. CEO Sell 46.3 -16,001 -1.28% ✗ $37.1K
Feb 1, 2025 Feb 4, 2025 Brown Christopher D. Chief Product Officer Sell 48.8 -7,767 -0.80% ✗ $18.2K
Dec 19, 2024 Dec 19, 2024 Brown Christopher D. Chief Product Officer Neutral 52.5 - 0.00% ✗ -
Dec 13, 2024 Dec 16, 2024 Knopp Kevin J. CEO Neutral 52.5 - 0.00% ✗ -
Aug 7, 2024 Aug 8, 2024 Brown Christopher D. Chief Product Officer Neutral 52.5 - 0.00% ✗ -
Jun 25, 2024 Jun 26, 2024 Leonhart Michele M. Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2024 Leonhart Michele M. Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2024 Leonhart Michele M. Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 CRANDELL KEITH Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 Spoto Mark Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 HRUSOVSKY E KEVIN Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 Hunt Anthony Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 George Jeffrey P. Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 ELOI FENEL M Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2024 Jun 14, 2024 Eisenberg Marcia Director Neutral 52.5 - 0.00% ✗ -
Jun 7, 2024 Jun 10, 2024 Eisenberg Marcia Director Neutral 52.5 - 0.00% ✗ -
May 13, 2024 May 13, 2024 Knopp Kevin J. CEO Buy 72.5 +10,000 0.96% ✗ $64.2K
May 10, 2024 May 10, 2024 Knopp Kevin J. CEO Buy 72.5 +10,000 0.97% ✗ $57.7K
May 9, 2024 May 9, 2024 Knopp Kevin J. CEO Buy 72.5 +10,000 0.98% ✗ $58.3K
May 8, 2024 May 8, 2024 Knopp Kevin J. CEO Buy 72.5 +10,000 0.99% ✗ $57.2K
May 7, 2024 May 7, 2024 Knopp Kevin J. CEO Buy 72.5 +10,000 1.00% ✗ $56K
Apr 16, 2024 Apr 16, 2024 Knopp Kevin J. CEO Neutral 52.5 - 0.00% ✗ -
Apr 1, 2024 Apr 2, 2024 Brown Christopher D. Chief Product Officer Neutral 52.5 - 0.00% ✗ -
Mar 26, 2024 Mar 27, 2024 Griffith Joseph H. IV CFO Neutral 52.5 - 0.00% ✗ -
Mar 1, 2024 Mar 5, 2024 Turner Michael S. Chief Legal & Admin Officer Neutral 52.5 - 0.00% ✗ -
Mar 1, 2024 Mar 5, 2024 Griffith Joseph H. IV CFO Neutral 52.5 - 0.00% ✗ -
Mar 4, 2024 Mar 5, 2024 Hunt Anthony Director Neutral 52.5 - 0.00% ✗ -
Mar 1, 2024 Mar 5, 2024 Knopp Kevin J. CEO Neutral 52.5 - 0.00% ✗ -
Mar 1, 2024 Mar 5, 2024 Brown Christopher D. Chief Product Officer Neutral 52.5 - 0.00% ✗ -
Feb 22, 2024 Feb 23, 2024 ELOI FENEL M Director Neutral 52.5 - 0.00% ✗ -
Feb 22, 2024 Feb 23, 2024 George Jeffrey P. Director Neutral 52.5 - 0.00% ✗ -
Feb 1, 2024 Feb 2, 2024 Griffith Joseph H. IV CFO Sell 20.0 -15,409 -16.15% ✓ $108.8K
Feb 1, 2024 Feb 2, 2024 Turner Michael S. Chief Legal & Admin Officer Sell 46.3 -5,232 -36.49% ✗ $36.6K
Feb 1, 2024 Feb 2, 2024 Knopp Kevin J. CEO Sell 45.0 -9,071 -0.94% ✗ $63.5K
Feb 1, 2024 Feb 2, 2024 Brown Christopher D. Chief Product Officer Sell 51.3 -3,957 -0.44% ✗ $27.7K
Dec 28, 2023 Jan 2, 2024 Griffith Joseph H. IV CFO Sell 32.5 -6,000 -6.98% ✓ $72.5K
Dec 19, 2023 Dec 21, 2023 Griffith Joseph H. IV CFO Sell 32.5 -5,580 -6.09% ✓ $50.7K
Dec 19, 2023 Dec 21, 2023 Brown Christopher D. Chief Product Officer Sell 41.3 -20,000 -2.23% ✓ $182K
Jun 14, 2023 Jun 16, 2023 Eisenberg Marcia Director Neutral 52.5 - 0.00% ✗ -
Jun 14, 2023 Jun 16, 2023 CRANDELL KEITH Director Neutral 52.5 - 0.00% ✗ -
Jun 14, 2023 Jun 16, 2023 Hunt Anthony Director Neutral 52.5 - 0.00% ✗ -
Jun 14, 2023 Jun 16, 2023 Spoto Mark Director Neutral 52.5 - 0.00% ✗ -
Jun 14, 2023 Jun 16, 2023 HRUSOVSKY E KEVIN Director Neutral 52.5 - 0.00% ✗ -
Jun 14, 2023 Jun 16, 2023 ELOI FENEL M Director Neutral 52.5 - 0.00% ✗ -
Jun 14, 2023 Jun 16, 2023 George Jeffrey P. Director Neutral 52.5 - 0.00% ✗ -
Jun 7, 2023 Jun 14, 2023 Eisenberg Marcia Director Neutral 52.5 - 0.00% ✗ -
Jun 7, 2023 Jun 9, 2023 Brown Christopher D. Chief Product Officer Sell 52.5 -4,470 -0.50% ✓ $44.8K
Jun 5, 2023 Jun 5, 2023 Knopp Kevin J. CEO Neutral 52.5 - 0.00% ✗ -
May 23, 2023 May 25, 2023 Brown Christopher D. Chief Technology Officer Sell 45.0 -10,000 -1.11% ✓ $100.2K
May 23, 2023 May 25, 2023 Knopp Kevin J. CEO Sell 30.0 -60,000 -6.19% ✓ $607.2K
Mar 22, 2023 Mar 23, 2023 Griffith Joseph H. IV CFO Neutral 52.5 - 0.00% ✗ -
Mar 1, 2023 Mar 16, 2023 Brown Christopher D. Chief Technology Officer Neutral 52.5 - 0.00% ✗ -
Mar 1, 2023 Mar 16, 2023 Griffith Joseph H. IV CFO Neutral 52.5 - 0.00% ✗ -
Mar 1, 2023 Mar 16, 2023 Turner Michael S. VP, General Counsel Neutral 52.5 - 0.00% ✗ -
Mar 1, 2023 Mar 16, 2023 Knopp Kevin J. CEO Neutral 52.5 - 0.00% ✗ -
Mar 2, 2023 Mar 7, 2023 Hunt Anthony Director Neutral 52.5 - 0.00% ✗ -
Feb 22, 2023 Feb 23, 2023 ELOI FENEL M Director Neutral 52.5 - 0.00% ✗ -
Feb 22, 2023 Feb 23, 2023 George Jeffrey P. Director Neutral 52.5 - 0.00% ✗ -
Feb 15, 2023 Feb 17, 2023 Knopp Kevin J. CEO Sell 41.3 -20,000 -2.02% ✓ $205K
Dec 19, 2022 Feb 14, 2023 HRUSOVSKY E KEVIN Director Neutral 52.5 - 0.00% ✗ -
Feb 1, 2023 Feb 3, 2023 Turner Michael S. VP, General Counsel Sell 13.8 -4,427 -100.00% ✓ $43K
Feb 1, 2023 Feb 3, 2023 Knopp Kevin J. CEO Sell 35.0 -44,049 -4.26% ✓ $458.3K
Feb 1, 2023 Feb 3, 2023 Griffith Joseph H. IV CFO Sell 36.3 -5,102 -5.28% ✓ $49.6K
Feb 1, 2023 Feb 3, 2023 Fitzpatrick Maura VP, Product Management & Mktg Sell 46.3 -1,593 -35.98% ✗ $14.7K
Feb 1, 2023 Feb 3, 2023 Brown Christopher D. Chief Technology Officer Sell 45.0 -11,564 -1.27% ✓ $114.6K