908 Devices Inc. - MASS

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
Visible: 0
Filed Form Reporting person Percent Shares SEC
Aug 14, 2026 SCHEDULE 13G/A ARCH Venture Fund VII, L.P. 13.9% 5,725,045 View
Aug 14, 2026 SCHEDULE 13G/A ARCH Venture Partners VII, L.P. 13.9% 5,725,045 View
Aug 14, 2026 SCHEDULE 13G/A ARCH Venture Partners VII, LLC 13.9% 5,725,045 View
Aug 14, 2026 SCHEDULE 13G/A Keith Crandell 14.1% 5,824,877 View
Aug 14, 2026 SCHEDULE 13G/A Clinton Bybee 13.9% 5,725,045 View
Aug 14, 2026 SCHEDULE 13G/A Robert Nelsen 13.9% 5,725,045 View
Aug 14, 2026 SCHEDULE 13G/A ARK Investment Management LLC 5.32% 2,027,920 View
Aug 14, 2026 SCHEDULE 13G/A Catherine D. Wood 5.32% 2,027,920 View
Aug 14, 2026 SCHEDULE 13G/A AWM Investment Company, Inc. 11.8% 4,879,773 View
Jul 27, 2026 SCHEDULE 13G BlackRock, Inc. 5.1% 1,940,690 View
Jun 05, 2026 SCHEDULE 13G/A ARK Investment Management LLC 4.94% 1,883,206 View
Jun 05, 2026 SCHEDULE 13G/A Catherine D. Wood 4.94% 1,883,206 View
May 15, 2026 SCHEDULE 13G/A ARCH Venture Fund VII, L.P. 15.1% 5,725,045 View
May 15, 2026 SCHEDULE 13G/A ARCH Venture Partners VII, L.P. 15.1% 5,725,045 View
May 15, 2026 SCHEDULE 13G/A ARCH Venture Partners VII, LLC 15.1% 5,725,045 View
May 15, 2026 SCHEDULE 13G/A Keith Crandell 15.3% 5,809,216 View
May 15, 2026 SCHEDULE 13G/A Clinton Bybee 15.1% 5,725,045 View
May 15, 2026 SCHEDULE 13G/A Robert Nelsen 15.1% 5,725,045 View
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G. Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F). Amendments (/A) can repeat the same holder over time, so rows should not be summed. Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.