Generate Biomedicines, Inc. - GENB

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
May 15, 2026 SCHEDULE 13G Flagship Pioneering Fund VI, L.P. 9.9% 12,723,940 View
May 15, 2026 SCHEDULE 13G Flagship Pioneering Fund VI General Partner LLC 9.9% 12,723,940 View
May 15, 2026 SCHEDULE 13G Pioneering Medicines 02, LLC 1.2% 1,562,500 View
May 15, 2026 SCHEDULE 13G Flagship Pioneering Fund VII, L.P. 13.1% 16,827,224 View
May 15, 2026 SCHEDULE 13G Flagship Pioneering Fund VII General Partner LLC 13.1% 16,827,224 View
May 15, 2026 SCHEDULE 13G Nutritional Health LTP Fund, L.P. 0.8% 987,491 View
May 15, 2026 SCHEDULE 13G Nutritional Health LTP Fund General Partner LLC 0.8% 987,491 View
May 15, 2026 SCHEDULE 13G Flagship Pioneering Special Opportunities Fund II, L.P. 2.2% 2,777,752 View
May 15, 2026 SCHEDULE 13G Flagship Pioneering Special Opportunities Fund II General Partner LLC 2.2% 2,777,752 View
May 15, 2026 SCHEDULE 13G FPN II, L.P. 3.4% 4,340,252 View
May 15, 2026 SCHEDULE 13G FPN General Partner LLC 3.4% 4,340,252 View
May 15, 2026 SCHEDULE 13G Flagship VentureLabs VI, LLC 19.5% 25,016,458 View
May 15, 2026 SCHEDULE 13G Flagship VentureLabs VI Manager LLC 19.5% 25,016,458 View
May 15, 2026 SCHEDULE 13G Flagship Pioneering, LLC 48.9% 62,673,117 View
May 15, 2026 SCHEDULE 13G Afeyan Noubar 48.9% 62,701,915 View
May 15, 2026 SCHEDULE 13G Nally Michael 5.2% 6,919,051 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.