Investor ARCH Venture Fund XII, L.P.
13D/G Filings

This page shows a list of all the recent 13D/G filings made by ARCH Venture Fund XII, L.P. . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

Date Form Target Prev
Shares
Current
Shares
Change
(Percent)
Ownership
(Percent)
Change
(Percent)
2025-02-10 13D MTSR / Metsera, Inc.
2024-11-22 13D/A NMRA / Neumora Therapeutics, Inc. 31,966,207 31,979,111
2024-11-22 13D/A PRME / Prime Medicine, Inc. 15,472,674 15,511,736
2024-11-14 13G RAPP / Rapport Therapeutics, Inc. 3,728,738
2024-02-22 13D PRME / Prime Medicine, Inc. 15,472,674
2023-12-15 13D/A NMRA / Neumora Therapeutics, Inc. 29,797,376 31,966,207
2023-10-02 13D NMRA / Neumora Therapeutics, Inc. 29,797,376