908 Devices Inc. Common Stock (MASS)

About 908 Devices Inc. Common Stock

908 Devices Inc develops a suite of purpose-built handheld devices for point-of-need chemical analysis. Leveraging mass spectrometry, optical spectroscopy, analytics and machine learning technologies, the company makes devices that are smaller and more accessible than conventional laboratory instruments. Its devices, including MX908, ThreatID, XplorIR and VipIR, are used to analyze unknown materials and provide actionable answers in health, safety and defense technology applications, addressing the fentanyl and illicit drug crisis, toxic carcinogen exposure and security threats. The company reimagines mass spectrometry technology by developing smaller, lower-cost and simpler-to-operate devices compared to conventional instruments, and generates maximum revenue from the United States.

Institutional ownership

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. The largest reported holder was First Light Asset Management, with 6.3 million shares worth $54.7 million. Of the 5 largest holders listed below, 4 added shares and 1 reduced its position during the quarter.

Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.

Frequently asked questions