Kevin J. McCallion, SVP of Products and Production at 908 Devices Inc. ($MASS), made two open market sales of company shares in the last 365 days, totaling $98. His most recent sale occurred on March 2, 2026. These sales rank 11,595th out of 11,678 insiders in the database by value sold, well below the average of $8.6 million across 6.4 transactions per insider. He reported no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 10, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Common Stock | 2693 | $1.05 | 47,618.0000 | 35,898,542 | 5.99% | 0.01% |
| April 10, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Stock Option (right to buy) | 2693 | $0.00 | 0.0000 | 35,898,542 | 100.00% | 0.01% |
| April 10, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | S | Common Stock | 2693 | $7.01 | 44,925.0000 | 35,898,542 | 5.66% | 0.01% |
| April 9, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Common Stock | 5420 | $1.05 | 50,345.0000 | 35,898,542 | 12.06% | 0.02% |
| April 8, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Common Stock | 18580 | $1.05 | 63,505.0000 | 35,898,542 | 41.36% | 0.05% |
| April 8, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | S | Common Stock | 18580 | $7.05 | 44,925.0000 | 35,898,542 | 29.26% | 0.05% |
| April 9, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | S | Common Stock | 5420 | $7.03 | 44,925.0000 | 35,898,542 | 10.77% | 0.02% |
| April 8, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Stock Option (right to buy) | 18580 | $0.00 | 8,106.0000 | 35,898,542 | 69.62% | 0.05% |
| April 9, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Stock Option (right to buy) | 5420 | $0.00 | 2,686.0000 | 35,898,542 | 66.86% | 0.02% |
| March 2, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | S | Common Stock | 7 | $7.00 | 44,925.0000 | 36,101,051 | 0.02% | 0.00% |
| March 2, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Common Stock | 7 | $1.05 | 44,932.0000 | 36,101,051 | 0.02% | 0.00% |
| March 2, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | M | Stock Option (right to buy) | 7 | $0.00 | 26,686.0000 | 36,101,051 | 0.03% | 0.00% |
| March 2, 2026 | 908 Devices Inc. | $MASS | McCallion Kevin J. | SVP, Products and Production | S | Common Stock | 7 | $7.00 | 44,918.0000 | 35,898,542 | 0.02% | 0.00% |