Boundless Bio, Inc. insider trading
BOLD$2.62+0.03 (+1.16%)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+116.5%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- DADavid A. Hinkle0.0004%
- TCTang Capital Management LLCNot reported
- KCKevin C. TangNot reported
- AVARCH Venture Fund IX, L.P.Not reported
- KCKeith CrandellNot reported
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| BOLD | Kevin C. Tang | Open market sell$54.4K | -0.6% | $2.97 | $54.4K | Aug 26, 2026 | Aug 28, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$7.26K | +0.1% | $2.44 | $7.26K | Jul 21, 2026 | Jul 21, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$3.96K | +0.1% | $2.44 | $3.96K | Jul 20, 2026 | Jul 21, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$647 | 0.0% | $2.44 | $647 | Jul 17, 2026 | Jul 21, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$45.1K | +0.7% | $2.44 | $45.1K | Jul 16, 2026 | Jul 16, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$3.9K | +0.1% | $2.44 | $3.9K | Jul 15, 2026 | Jul 16, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$107K | +1.6% | $2.43 | $107K | Jul 14, 2026 | Jul 16, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$117K | +1.8% | $2.42 | $117K | Jul 13, 2026 | Jul 13, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$105K | +1.6% | $2.43 | $105K | Jul 10, 2026 | Jul 13, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$17.4 | 0.0% | $2.48 | $17.4 | Jul 9, 2026 | Jul 13, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$35.3K | +0.5% | $2.46 | $35.3K | Jul 8, 2026 | Jul 8, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$39.2K | +0.6% | $2.48 | $39.2K | Jul 7, 2026 | Jul 8, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$67.4K | +1.0% | $2.49 | $67.4K | Jul 6, 2026 | Jul 8, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$24.5K | +0.4% | $2.49 | $24.5K | Jul 2, 2026 | Jul 2, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$178K | +2.8% | $2.49 | $178K | Jul 1, 2026 | Jul 2, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$250 | 0.0% | $2.50 | $250 | Jun 30, 2026 | Jul 2, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$65.9K | +1.0% | $2.54 | $65.9K | Jun 30, 2026 | Jul 2, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$1.93K | 0.0% | $2.48 | $1.93K | Jun 29, 2026 | Jun 29, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$158K | +2.6% | $2.47 | $158K | Jun 29, 2026 | Jun 29, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$340 | 0.0% | $2.54 | $340 | Jun 26, 2026 | Jun 29, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$191K | +3.1% | $2.55 | $191K | Jun 26, 2026 | Jun 29, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$1.31K | 0.0% | $2.56 | $1.31K | Jun 25, 2026 | Jun 29, 2026 |
| BOLD | Kevin C. Tang | Open market purchase$362K | +6.5% | $2.48 | $362K | Jun 25, 2026 | Jun 29, 2026 |