Brown Christopher D. has filed 41 insider transactions across 1 company since February 2023.
Most recent transaction: a option exercise of 10992 shares of 908 Devices Inc. ($MASS) on February 01, 2026.
Activity breakdown: 0 open-market purchases and 13 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Brown Christopher D. | Not found | M | Restricted Stock Units | 10992 | $0.00 | 21,982.0000 | 36,101,051 | 33.34% | 0.03% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Brown Christopher D. | Not found | M | Restricted Stock Units | 7418 | $0.00 | 7,418.0000 | 36,101,051 | 50.00% | 0.02% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Brown Christopher D. | Not found | M | Restricted Stock Units | 5027 | $0.00 | 0.0000 | 36,101,051 | 100.00% | 0.01% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Brown Christopher D. | Not found | M | Common Stock | 10992 | $0.00 | 985,559.0000 | 36,101,051 | 1.13% | 0.03% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Brown Christopher D. | Not found | M | Common Stock | 7418 | $0.00 | 974,567.0000 | 36,101,051 | 0.77% | 0.02% |
| Feb. 1, 2026 | 908 Devices Inc. | $MASS | Brown Christopher D. | Not found | M | Common Stock | 5027 | $0.00 | 967,149.0000 | 36,101,051 | 0.52% | 0.01% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Restricted Stock Units | 5027 | $0.00 | 5,027.0000 | 34,076,321 | 50.00% | 0.01% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Restricted Stock Units | 7418 | $0.00 | 14,836.0000 | 34,076,321 | 33.33% | 0.02% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Restricted Stock Units | 10991 | $0.00 | 32,974.0000 | 34,076,321 | 25.00% | 0.03% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 5027 | $0.00 | 951,480.0000 | 34,076,321 | 0.53% | 0.01% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 7418 | $0.00 | 958,898.0000 | 34,076,321 | 0.78% | 0.02% |
| Feb. 1, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 10991 | $0.00 | 969,889.0000 | 34,076,321 | 1.15% | 0.03% |
| Feb. 3, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 1667 | $2.36 | 968,222.0000 | 34,076,321 | 0.17% | 0.00% |
| Feb. 3, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 2459 | $2.34 | 965,763.0000 | 34,076,321 | 0.25% | 0.01% |
| Feb. 3, 2025 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 3641 | $2.33 | 962,122.0000 | 34,076,321 | 0.38% | 0.01% |
| Dec. 19, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 55131 | $1.58 | 946,453.0000 | 34,670,638 | 6.19% | 0.16% |
| Dec. 19, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Stock Option (Right to Buy) | 55131 | $0.00 | 0.0000 | 34,670,638 | 100.00% | 0.16% |
| Aug. 7, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 6328 | $1.58 | 891,322.0000 | 34,061,933 | 0.72% | 0.02% |
| Aug. 7, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Stock Option (Right to Buy) | 6328 | $0.00 | 55,131.0000 | 34,061,933 | 10.30% | 0.02% |
| April 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 3600 | $1.75 | 884,994.0000 | 32,710,894 | 0.41% | 0.01% |
| April 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Stock Option (Right to Buy) | 3600 | $0.00 | 114,318.0000 | 32,710,894 | 3.05% | 0.01% |
| March 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | A | Stock Option (option to buy) | 60064 | $0.00 | 60,064.0000 | 32,239,394 | 9999.99% | 0.19% |
| March 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | A | Restricted Stock Units | 43965 | $0.00 | 43,965.0000 | 32,239,394 | 9999.99% | 0.14% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 1599 | $6.99 | 888,752.0000 | 32,239,394 | 0.18% | 0.00% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 2358 | $7.02 | 886,394.0000 | 32,239,394 | 0.27% | 0.01% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Restricted Stock Units | 5028 | $0.00 | 10,054.0000 | 32,239,394 | 33.34% | 0.02% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Restricted Stock Units | 7418 | $0.00 | 22,254.0000 | 32,239,394 | 25.00% | 0.02% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 5028 | $0.00 | 882,933.0000 | 32,239,394 | 0.57% | 0.02% |
| Feb. 1, 2024 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | M | Common Stock | 7418 | $0.00 | 890,351.0000 | 32,239,394 | 0.84% | 0.02% |
| Dec. 19, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 6090 | $9.08 | 891,815.0000 | 32,345,925 | 0.68% | 0.02% |
| Dec. 19, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 1305 | $9.08 | 890,510.0000 | 32,345,925 | 0.15% | 0.00% |
| Dec. 20, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 5235 | $9.10 | 885,275.0000 | 32,345,925 | 0.59% | 0.02% |
| Dec. 21, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 7370 | $9.12 | 877,905.0000 | 32,345,925 | 0.83% | 0.02% |
| June 7, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Product Officer | S | Common Stock | 4470 | $10.03 | 897,905.0000 | 31,965,799 | 0.50% | 0.01% |
| May 23, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | S | Common Stock, par value $0.001 | 10000 | $10.02 | 892,375.0000 | 31,965,799 | 1.11% | 0.03% |
| March 1, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | A | Restricted Stock Unit | 29672 | $0.00 | 29,672.0000 | 31,492,531 | 9999.99% | 0.09% |
| March 1, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | A | Stock Option (option to buy) | 45018 | $0.00 | 45,018.0000 | 31,492,531 | 9999.99% | 0.14% |
| Feb. 2, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | S | Common Stock | 10000 | $10.03 | 902,375.0000 | 31,492,531 | 1.10% | 0.03% |
| Feb. 1, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | M | Restricted Stock Unit | 5027 | $0.00 | 15,082.0000 | 31,492,531 | 25.00% | 0.02% |
| Feb. 1, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | S | Common Stock | 1564 | $9.17 | 912,375.0000 | 31,492,531 | 0.17% | 0.00% |
| Feb. 1, 2023 | 908 Devices Inc. | $MASS | Brown Christopher D. | Chief Technology Officer | M | Common Stock | 5027 | $0.00 | 913,939.0000 | 31,492,531 | 0.55% | 0.02% |