Boundless Bio ($BOLD) Insider Trading & Smart Money Activity
Boundless Bio, Inc. ($BOLD) has 11 insider trades on file. In the last 12 months on the open market, 1 insider bought ($714.77K) and no insider sold, net +$714.77K.
- Insider buyers (12 mo)
- 1
- Insider sellers (12 mo)
- 0
- Net insider $ (12 mo)
- +$714.77K
- Congress trades (12 mo)
- 0
- 13F moves on file
- 0
- Analyst ratings on file
- 0
BOLD insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 3 · $714.77K | 0 | 0 / 0 | 0 / 0 |
| Q3 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q4 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All BOLD insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Insider | Kevin Tang | Buy (Open-market buy) | 64.76K sh | $159.97K | +2.0% | +1.2% | — | ||||
| Insider | Kevin Tang | Buy (Open-market buy) | 75.18K sh | $191.71K | -2.3% | -3.1% | — | ||||
| Insider | Kevin Tang | Buy (Open-market buy) | 146.39K sh | $363.09K | -0.4% | -1.2% | Read | ||||
| Insider | Nancy Whiting | Buy (Grant or award) | 32K sh | 0.0% | +76.4% | — | |||||
| Insider | Nancy Whiting | Buy (Grant or award) | 32K sh | 0.0% | +76.4% | Read | |||||
| Insider | Jonathan Lim | Buy (Grant or award) | 48K sh | 0.0% | +76.4% | — | |||||
| Insider | Jonathan Lim | Buy (Grant or award) | 48K sh | 0.0% | +76.4% | Read | |||||
| Insider | Jennifer Lew | Buy (Grant or award) | 32K sh | 0.0% | +76.4% | — | |||||
| Insider | Jennifer Lew | Buy (Grant or award) | 32K sh | 0.0% | +76.4% | Read | |||||
| Insider | James Christensen | Buy (Grant or award) | 32K sh | 0.0% | +76.4% | — | |||||
| Insider | James Christensen | Buy (Grant or award) | 32K sh | 0.0% | +76.4% | Read |
1W / 1M / 6M = how BOLD moved from the trade or filing date.
Insider trading in BOLD: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Kevin Tang | 3 | +$714.77K | Jun 29, 2026 | ||
| Nancy Whiting | 2 | — | Jun 15, 2026 | ||
| Jonathan Lim | 2 | — | Jun 15, 2026 | ||
| Jennifer Lew | 2 | — | Jun 15, 2026 | ||
| James Christensen | 2 | — | Jun 15, 2026 |
Frequently asked questions
Are BOLD insiders buying or selling?
Over the last 12 months 1 insider made 3 open-market purchases worth $714.77K and 0 insiders made 0 open-market sales worth $0, a net +$714.77K.
What is the latest insider trade in BOLD?
Kevin Tang filed a buy (open-market buy) of 64.76K sh worth $159.97K on Jun 29, 2026.
Other biotechnology stocks
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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