13D Filings

ARCH Venture Fund XII, L.P.

CIK

1906837

13D Filings

6

Companies

4

Latest Filing

May 6, 2026, 04:26 PM

Filing History
Company
% Owned
Type
Filed
Seaport Therapeutics, Inc.

11.90%

NEW

May 6, 2026, 04:26 PM

Neumora Therapeutics, Inc.
NMRA

18.70%

-2.00%

Amendment

Apr 1, 2026, 04:10 PM

Metsera, Inc.

0.00%

-25.50%

Amendment

Nov 14, 2025, 06:22 PM

Neumora Therapeutics, Inc.
NMRA

20.70%

Amendment

Oct 29, 2025, 07:07 PM

Prime Medicine, Inc.
PRME

10.40%

Amendment

Aug 11, 2025, 09:48 PM

Metsera, Inc.

25.50%

NEW

Feb 10, 2025, 09:30 PM

Rows:

16 of 6

1