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Significant Ownership

Significant Ownership of ARCH Venture Fund XII, L.P.

Signature - Title: ARCH Venture Partners XII, L.P. - its General Partner
Location: Chicago, IL
Summary: This page shows a list of all the recent SCHEDULE 13D/G filings made by ARCH Venture Fund XII, L.P..

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Significant Ownership of ARCH Venture Fund XII, L.P.

Sym	Company	Class	Ownership	Holdings Value	Net Change	Nb Shares	Change %	Reporting Name	Report Period
NMRA	Neumora Therapeutics, Inc.	Common Stock, $0.0001 par value	21%	$61,805,320		33,958,967		Kristina Burow	27 Oct 2025
PRME	Prime Medicine, Inc.	Common Stock, $0.00001 par value	10%	$80,853,607		18,587,036		Robert Nelsen	07 Aug 2025
MTSR	Metsera, Inc.	Common Stock, $0.00001 par value	0%	$0	-$1,403,973,083	0	-100%	ARCH Venture Fund XII, L.P.	13 Nov 2025

Schedules 13D/G Reported by ARCH Venture Fund XII, L.P.:

Sym	Target	Class	Ownership	Change	Current Shares	Change	Value	Reporting name	Form	Report Period	Filing Date

* An asterisk sign (*) next to the price indicates that the price is likely invalid.