Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-12-05 4:32 pm Purchase | 2025-11-30 | 13G | 908 Devices Inc. MASS | First Light Asset Management, LLC | 4,680,859 12.930% | 1,118,602 (+31.40%) | Filing History |
| 2025-11-14 4:37 pm Purchase | 2025-09-30 | 13G | 908 Devices Inc. MASS | First Light Asset Management, LLC | 3,562,257 9.840% | 3,562,257 (New Position) | Filing History |
| 2025-11-04 4:46 pm Sale | 2025-09-30 | 13G | 908 Devices Inc. MASS | ARK Investment Management LLC | 1,953,772 5.410% | -834,793 (-29.94%) | Filing History |
| 2025-08-11 06:39 am Purchase | 2025-06-30 | 13G | 908 Devices Inc. MASS | STATE STREET CORP STT | 2,286,634 6.400% | 2,286,634 (New Position) | Filing History |
| 2025-05-15 10:52 am Sale | 2025-03-31 | 13G | 908 Devices Inc. MASS | AMERIPRISE FINANCIAL INC AMP | 316 0.000% | -1,889,311 (-99.98%) | Filing History |
| 2025-04-25 4:03 pm Sale | 2025-03-31 | 13G | 908 Devices Inc. MASS | BlackRock Inc. BLK | 1,614,014 4.600% | -270,466 (-14.35%) | Filing History |
| 2025-04-07 4:18 pm Purchase | 2025-03-31 | 13G | 908 Devices Inc. MASS | AWM Investment Company, Inc. | 5,199,924 14.700% | 5,199,924 (New Position) | Filing History |
| 2025-02-14 11:23 am Sale | 2024-12-31 | 13G | 908 Devices Inc. MASS | ARK Investment Management LLC | 2,788,565 8.010% | -430,984 (-13.39%) | Filing History |
| 2025-01-30 8:09 pm Sale | 2024-12-31 | 13G | 908 Devices Inc. MASS | The Vanguard Group | 1,324,534 3.800% | -419,796 (-24.07%) | Filing History |
| 2025-01-10 9:23 pm Sale | 2024-09-30 | 13G | 908 Devices Inc. MASS | ARK Investment Management LLC | 3,219,549 9.290% | -1,127,030 (-25.93%) | Filing History |
| 2024-11-14 5:11 pm Purchase | 2024-09-30 | 13G | 908 Devices Inc. MASS | ARCH Venture Fund VII, L.P. | 5,782,548 16.600% | 26,106 (+0.45%) | Filing History |
| 2024-11-14 4:25 pm Sale | 2024-09-30 | 13G | 908 Devices Inc. MASS | Granahan Investment Management LLC | 861,433 2.490% | -1,177,225 (-57.75%) | Filing History |
| 2024-11-08 2:17 pm Unchanged | 2024-09-30 | 13G | 908 Devices Inc. MASS | BlackRock Inc. BLK | 1,884,480 5.400% | 0 (Unchanged) | Filing History |
| 2024-10-24 2:02 pm Purchase | 2024-09-30 | 13G | 908 Devices Inc. MASS | BlackRock Inc. BLK | 1,884,480 5.400% | 191,276 (+11.30%) | Filing History |
| 2024-07-08 4:32 pm Sale | 2024-06-30 | 13G | 908 Devices Inc. MASS | BlackRock Inc. BLK | 1,693,204 4.900% | -93,549 (-5.24%) | Filing History |
| 2024-02-14 12:02 pm Sale | 2023-12-31 | 13G | 908 Devices Inc. MASS | Eventide Asset Management, LLC | 1,430,995 4.420% | -799,670 (-35.85%) | Filing History |
| 2024-02-14 10:46 am Purchase | 2023-12-31 | 13G | 908 Devices Inc. MASS | AMERIPRISE FINANCIAL INC AMP | 1,889,627 5.840% | 1,889,627 (New Position) | Filing History |
| 2024-02-14 09:00 am Purchase | 2023-12-31 | 13G | 908 Devices Inc. MASS | Granahan Investment Management LLC | 2,038,658 6.300% | 2,038,658 (New Position) | Filing History |
| 2024-02-13 4:55 pm Purchase | 2023-12-29 | 13G | 908 Devices Inc. MASS | The Vanguard Group | 1,744,330 5.390% | 1,744,330 (New Position) | Filing History |
| 2024-02-09 5:34 pm Purchase | 2023-12-31 | 13G | 908 Devices Inc. MASS | ARCH Venture Fund VII, L.P. | 5,756,442 17.800% | 11,843 (+0.21%) | Filing History |