ARCH Venture Fund XII, L.P.

2 filings 2 distinct issuers Active 2025-08-11 → 2026-04-01

Track Record

Total filings

1 SCHEDULE 13D/A · 1 SCHEDULE

Distinct issuers

100% issuer diversity

Median stake

14.55%

26,217,437 avg shares

AI briefs cached

0/2

intent-classified filings

Backtested Performance · post-filing returns (split + dividend adjusted)

Median 30d

+8.3%

across 2 filings · win rate 50%

Median 60d

-5.2%

across 2 filings · win rate 0%

Median 90d

-5.2%

across 2 filings · win rate 0%

Median 1y

—

across 0 filings · win rate —

Anchor: closest trading day on/after filing's date_of_event. Source: Yahoo Finance daily adj_close. Past performance is not indicative of future results.

Filings · 2 total

Filed	Form	Issuer	Stake	Shares	Intent
2026-04-01	SCHEDULE 13D/A	Neumora Therapeutics, Inc.NMRA	18.70%	33,847,838		view →
2025-08-11	SCHEDULE	Prime Medicine, Inc.PRME	10.40%	18,587,036		view →

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