908 DEVICES INC (MASS) Institutional Ownership and Insiders Activity

908 DEVICES INC (MASS) is widely held by institutional investors, with 3 tracked firms reporting positions valued at approximately $18.24M based on SEC Form 13F filings for the quarter ended March 31, 2026.

ARK Invest is the largest disclosed holder, reporting approximately $11.91M in MASS holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with ARK Invest representing the majority of disclosed value.

Recent insider activity includes 26 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.