908 Devices Inc. Common Stock (MASS) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for MASS. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 107 institutions reported holding MASS, with 27.9 million shares worth $242.7 million in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| First Light Asset Management | 6,282,804 | $55M | INCREASED |
| Awm Investment Company | 4,879,773 | $42M | DECREASED |
| ARK Invest | 2,027,920 | $18M | INCREASED |
| BlackRock | 1,944,236 | $17M | INCREASED |
| Needham Investment Management | 1,820,620 | $16M | INCREASED |
Full institutional holdings, insider history, and congressional trades for 908 Devices Inc. Common Stock on SentiSense.