// company-profile
Boundless Bio, Inc.
BOLD// activity-summary
Recent insider activity is bullish. Over the last 30 days, 4 insiders purchased shares. Buying was led by Christensen James.
// 90-day insight
Over the last 90 days, Boundless Bio, Inc. insiders bought $0 across 4 transactions with no open-market sales.
- Most active insider: Christensen James with 1 transaction totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Boundless Bio, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 15, 2026 | Christensen James | BOLD | Award | 32,000 | $0.00 | $0K |
| Jun 15, 2026 | Whiting Nancy | BOLD | Award | 32,000 | $0.00 | $0K |
| Jun 15, 2026 | Lew Jennifer | BOLD | Award | 32,000 | $0.00 | $0K |
| Jun 15, 2026 | Lim Jonathan E | BOLD | Award | 48,000 | $0.00 | $0K |
| Jan 23, 2026 | Doebele Robert | BOLD | Award | 230,000 | $0.00 | $0K |
45 more transactions hidden
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