Who is ARCH Venture Partners XII, LLC?

ARCH Venture Partners XII, LLC has filed 5 SEC Form 4 insider transaction reports across 2 companies. Form 4 disclosures are required by law whenever a corporate insider buys, sells, or receives company stock.

How many insider transactions has ARCH Venture Partners XII, LLC filed?

ARCH Venture Partners XII, LLC has 5 SEC Form 4 transactions on record at EdgarLookup, sourced from the SEC EDGAR public database. These span 2 companies.

ARCH Venture Partners XII, LLC

Insider transactions at 2 companies

This page shows all SEC Form 4 filings attributed to ARCH Venture Partners XII, LLC. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.

PRME NMRA

Company	Type	Shares	Price	Value	Date
0002040807	Disposition	18,503,128	—	—	Nov 13, 2025
NMRA	Purchase	1,915,700	$2.61	$4,999,977	Oct 27, 2025
PRME	Purchase	3,200,000	$6.25	$20,000,000	Feb 15, 2024
NMRA	Other	1,176,593	—	—	Dec 8, 2023
NMRA	Purchase	22,420	$11.38	$255,140	Nov 7, 2023