ARCH Venture Partners IX, LLC
10% Owner · 2 filings · Latest: Jul 1, 2026
Boundless Bio, Inc.
Lyell Immunopharma, Inc.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
BOLD | ARCH Venture Partners IX, LLC | 10% Owner | Jul 1, 2026 | Sale | $2.49 | 16,000 | $39.8K | 0 | |
BOLD | ARCH Venture Partners IX, LLC | 10% Owner | Jul 1, 2026 | Option Exercise | $1.03 | 16,000 | $16.5K | 16,000 | |
LYEL | ARCH Venture Partners IX, LLC | 10% Owner | Mar 6, 2026 | Purchase | $25.61 | 488,090 | $12.5M | 1,426,528 |