ARCH Venture Fund IX, L.P.
Activist investor & 5%+ owner · SC 13D/13G filings
Total Filings
10
Stocks Covered
4
Latest Filing
Nov 14, 2025
Filings
N/A
Lyell Immunopharma, Inc.
SC 13G/A · Nov 14, 2025
13.0%
2.8M shares
N/A
Singular Genomics Systems, Inc.
SC 13G/A · May 15, 2025
0.0%
0 shares
N/A
Boundless Bio, Inc.
SC 13D · Oct 29, 2024
12.1%
2.7M shares