CIK 0001782303 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company
Boundless Bio, Inc.
Sign in to watch- Ticker
- BOLD
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 830751369
- Phone
- (858) 766-9912
- Business address
- 11099 NORTH TORREY PINES ROAD, SUITE 150, LA JOLLA, CA, 92037
- Open-market buys, last 90 days
- $458,375
- in 5 filings
- Open-market sales, last 90 days
- $54,351
- in 1 filing
Net +$404,024. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-07-13 | TANG KEVIN 10% owner | Purchase | +48,211 | $2.42 | $117K | 2,790,103 |
| 2026-07-10 | TANG KEVIN 10% owner | Purchase | +43,367 | $2.43 | $105K | 2,741,892 |
| 2026-07-09 | TANG KEVIN 10% owner | Purchase | +7 | $2.48 | $17 | 2,698,525 |
| 2026-07-08 | TANG KEVIN 10% owner | Purchase | +14,338 | $2.46 | $35K | 2,698,518 |
| 2026-07-07 | TANG KEVIN 10% owner | Purchase | +15,810 | $2.48 | $39K | 2,684,180 |
| 2026-07-06 | TANG KEVIN 10% owner | Purchase | +27,062 | $2.49 | $67K | 2,668,370 |
| 2026-07-02 | TANG KEVIN 10% owner | Purchase | +9,821 | $2.49 | $24K | 2,641,308 |
| 2026-07-01 | CRANDELL KEITH 10% owner | Option exercise | +16,000 | $1.03 | $16K | 16,000 |
| 2026-07-01 | CRANDELL KEITH 10% owner | Sale | −16,000 | $2.49 | $40K | 0 |
| 2026-07-01 | CRANDELL KEITH 10% owner | Option exercise · Stock Option (right to buy) | −16,000 | 0 | ||
| 2026-07-01 | ARCH Venture Fund IX, L.P. 10% owner | Option exercise | +16,000 | $1.03 | $16K | 16,000 |
| 2026-07-01 | ARCH Venture Fund IX, L.P. 10% owner | Sale | −16,000 | $2.49 | $40K | 0 |
| 2026-07-01 | ARCH Venture Fund IX, L.P. 10% owner | Option exercise · Stock Option (right to buy) | −16,000 | 0 | ||
| 2026-07-01 | TANG KEVIN 10% owner | Purchase | +71,612 | $2.49 | $178K | 2,631,487 |
| 2026-06-30 | TANG KEVIN 10% owner | Purchase | +25,930 | $2.54 | $66K | 2,559,775 |
| 2026-06-30 | TANG KEVIN 10% owner | Purchase | +100 | $2.50 | $250 | 2,559,875 |
| 2026-06-29 | TANG KEVIN 10% owner | Purchase | +63,985 | $2.47 | $158K | 2,533,068 |
| 2026-06-29 | TANG KEVIN 10% owner | Purchase | +777 | $2.48 | $2K | 2,533,845 |
| 2026-06-26 | TANG KEVIN 10% owner | Purchase | +75,047 | $2.55 | $191K | 2,468,949 |
| 2026-06-26 | TANG KEVIN 10% owner | Purchase | +134 | $2.54 | $340 | 2,469,083 |
Page 2 of 10 · 185 trades