Knopp Kevin J., President and CEO of 908 Devices Inc. ($MASS), made two open market purchases totaling $131 thousand in the last year, with the latest on May 15, 2025. These rank 1920th among 4983 insiders, below the average of $1.5 million across 3.29 transactions. He sold shares once for $215 thousand, most recently on February 2, 2026, ranking 8270th out of 11678 insiders versus an average of $8.6 million over 6.37 trades.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 2, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Restricted Stock Units | 205978 | $0.00 | 205,978.0000 | 36,101,051 | 9999.99% | 0.57% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 17007 | $0.00 | 34,014.0000 | 36,101,051 | 33.33% | 0.05% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 13449 | $0.00 | 13,448.0000 | 36,101,051 | 50.00% | 0.04% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 11255 | $0.00 | 0.0000 | 36,101,051 | 100.00% | 0.03% |
| Feb. 2, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 34764 | $6.18 | 1,337,191.0000 | 36,101,051 | 2.53% | 0.10% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 66288 | $0.00 | 1,371,955.0000 | 36,101,051 | 5.08% | 0.18% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 17007 | $0.00 | 1,305,667.0000 | 36,101,051 | 1.32% | 0.05% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 13449 | $0.00 | 1,288,660.0000 | 36,101,051 | 1.05% | 0.04% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 11255 | $0.00 | 1,275,211.0000 | 36,101,051 | 0.89% | 0.03% |
| Feb. 2, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Stock Option (option to buy) | 90043 | $0.00 | 90,043.0000 | 36,101,051 | 9999.99% | 0.25% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 66288 | $0.00 | 132,576.0000 | 36,101,051 | 33.33% | 0.18% |
| May 15, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 15000 | $4.44 | 1,263,956.0000 | 35,386,483 | 1.20% | 0.04% |
| May 14, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 15000 | $4.32 | 1,248,956.0000 | 35,386,483 | 1.22% | 0.04% |
| March 3, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Stock Option (option to buy) | 90518 | $0.00 | 90,518.0000 | 34,076,321 | 9999.99% | 0.27% |
| March 3, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Restricted Stock Units | 198864 | $0.00 | 198,864.0000 | 34,076,321 | 9999.99% | 0.58% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 17007 | $0.00 | 51,021.0000 | 34,076,321 | 25.00% | 0.05% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 11254 | $0.00 | 1,219,502.0000 | 34,076,321 | 0.93% | 0.03% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 13448 | $0.00 | 1,232,950.0000 | 34,076,321 | 1.10% | 0.04% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 17007 | $0.00 | 1,249,957.0000 | 34,076,321 | 1.38% | 0.05% |
| Feb. 3, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 4318 | $2.33 | 1,245,639.0000 | 34,076,321 | 0.35% | 0.01% |
| Feb. 3, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 5159 | $2.31 | 1,240,480.0000 | 34,076,321 | 0.41% | 0.02% |
| Feb. 3, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 6524 | $2.32 | 1,233,956.0000 | 34,076,321 | 0.53% | 0.02% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 11254 | $0.00 | 11,255.0000 | 34,076,321 | 50.00% | 0.03% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 13448 | $0.00 | 26,897.0000 | 34,076,321 | 33.33% | 0.04% |
| Dec. 13, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Stock Option (Right to Buy) | 110626 | $0.00 | 0.0000 | 34,670,638 | 100.00% | 0.32% |
| Dec. 13, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 47418 | $1.75 | 1,097,622.0000 | 34,670,638 | 4.52% | 0.14% |
| Dec. 13, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 110626 | $1.58 | 1,208,248.0000 | 34,670,638 | 10.08% | 0.32% |
| Dec. 13, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Stock Option (Right to Buy) | 47418 | $0.00 | 0.0000 | 34,670,638 | 100.00% | 0.14% |
| May 13, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 10000 | $6.42 | 1,050,204.0000 | 32,710,894 | 0.96% | 0.03% |
| May 10, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 10000 | $5.77 | 1,040,204.0000 | 32,710,894 | 0.97% | 0.03% |
| May 9, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 10000 | $5.83 | 1,030,204.0000 | 32,710,894 | 0.98% | 0.03% |
| May 8, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 10000 | $5.72 | 1,020,204.0000 | 32,710,894 | 0.99% | 0.03% |
| May 7, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | P | Common Stock | 10000 | $5.60 | 1,010,204.0000 | 32,710,894 | 1.00% | 0.03% |
| April 16, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Stock Option (Right to Buy) | 47000 | $0.00 | 47,418.0000 | 32,710,894 | 49.78% | 0.14% |
| April 16, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 47000 | $1.75 | 1,000,204.0000 | 32,710,894 | 4.93% | 0.14% |
| March 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Stock Option (option to buy) | 92937 | $0.00 | 92,937.0000 | 32,239,394 | 9999.99% | 0.29% |
| March 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Restricted Stock Units | 68028 | $0.00 | 68,028.0000 | 32,239,394 | 9999.99% | 0.21% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 13449 | $0.00 | 40,345.0000 | 32,239,394 | 25.00% | 0.04% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 11255 | $0.00 | 948,826.0000 | 32,239,394 | 1.20% | 0.03% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 13449 | $0.00 | 962,275.0000 | 32,239,394 | 1.42% | 0.04% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 4099 | $6.97 | 958,176.0000 | 32,239,394 | 0.43% | 0.01% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 4972 | $7.02 | 953,204.0000 | 32,239,394 | 0.52% | 0.02% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Units | 11255 | $0.00 | 22,509.0000 | 32,239,394 | 33.33% | 0.03% |
| June 5, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 28500 | $1.75 | 937,571.0000 | 31,965,799 | 3.14% | 0.09% |
| June 5, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Stock Option (option to buy) | 28500 | $1.75 | 94,418.0000 | 31,965,799 | 23.19% | 0.09% |
| May 23, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock, par value $0.001 | 60000 | $10.12 | 909,071.0000 | 31,965,799 | 6.19% | 0.19% |
| March 1, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Performance-Based Restricted Stock Unit | 53794 | $0.00 | 53,794.0000 | 31,492,531 | 9999.99% | 0.17% |
| March 1, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | A | Restricted Stock Unit | 53794 | $0.00 | 53,794.0000 | 31,492,531 | 9999.99% | 0.17% |
| Feb. 15, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock, par value $0.001 | 15158 | $10.29 | 973,913.0000 | 31,492,531 | 1.53% | 0.05% |
| Feb. 16, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock, par value $0.001 | 4842 | $10.12 | 969,071.0000 | 31,492,531 | 0.50% | 0.02% |
| Feb. 2, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 40000 | $10.51 | 989,071.0000 | 31,492,531 | 3.89% | 0.13% |
| Feb. 1, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | S | Common Stock | 4049 | $9.36 | 1,029,071.0000 | 31,492,531 | 0.39% | 0.01% |
| Feb. 1, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Common Stock | 11255 | $0.00 | 1,033,120.0000 | 31,492,531 | 1.10% | 0.04% |
| Feb. 1, 2023 | 908 Devices Inc. | $MASS | Knopp Kevin J. | President and CEO | M | Restricted Stock Unit | 11255 | $0.00 | 33,764.0000 | 31,492,531 | 25.00% | 0.04% |