ARCH Venture Partners VIII, LLC (CIK 0001616165)

Latest company ownership

Shares held
27,800,931
Last filed at
Oct 29, 2025
Confidence Score
83.8
2025Q4
Confidence Score History
2023Q3 2025Q4
Role: 10% Owner
Shares held
1,889
Last filed at
Nov 24, 2020
Confidence Score
50.0
2025Q4
Confidence Score History
2017Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Oct 27, 2025 Oct 29, 2025 Neumora Therapeutics, Inc. 10% Owner Buy 95.0 +1,915,700 6.00% $5M
Sep 19, 2023 Sep 20, 2023 Neumora Therapeutics, Inc. 10% Owner Buy 100.0 +1,500,000 70.62% $25.5M
Dec 11, 2017 Dec 13, 2017 Quanterix Corp 10% Owner Buy 100.0 +266,000 20.92% $4M