Boundless Bio, Inc.
BOLD
17 insider filings · Latest: Jul 17, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Jul 21, 2026 | Jul 21 11:38 PM | Kevin Tang10% Owner | Purchase | 2,975 | $2.44 | $7.3K | 2,858,935(I) | View → |
| Jul 20, 2026 | Jul 21 11:38 PM | Kevin Tang10% Owner | Purchase | 1,623 | $2.44 | $4.0K | 2,855,960(I) | View → |
| Jul 17, 2026 | Jul 21 11:38 PM | Kevin Tang10% Owner | Purchase | 265 | $2.44 | $647 | 2,854,337(I) | View → |
| Jul 16, 2026 | Jul 17 12:10 AM | Kevin Tang10% Owner | Purchase | 18,491 | $2.44 | $45.1K | 2,854,072(I) | View → |
| Jul 15, 2026 | Jul 17 12:10 AM | Kevin Tang10% Owner | Purchase | 1,600 | $2.44 | $3.9K | 2,835,581(I) | View → |
| Jul 14, 2026 | Jul 17 12:10 AM | Kevin Tang10% Owner | Purchase | 43,878 | $2.43 | $106.6K | 2,833,981(I) | View → |
| Jul 13, 2026 | Jul 13 11:06 PM | Kevin Tang10% Owner | Purchase | 48,211 | $2.42 | $116.7K | 2,790,103(I) | View → |
| Jul 10, 2026 | Jul 13 11:06 PM | Kevin Tang10% Owner | Purchase | 43,367 | $2.43 | $105.4K | 2,741,892(I) | View → |
| Jul 9, 2026 | Jul 13 11:06 PM | Kevin Tang10% Owner | Purchase | 7 | $2.48 | $17 | 2,698,525(I) | View → |
| Jul 8, 2026 | Jul 9 12:06 AM | Kevin Tang10% Owner | Purchase | 14,338 | $2.46 | $35.3K | 2,698,518(I) | View → |
| Jul 7, 2026 | Jul 9 12:06 AM | Kevin Tang10% Owner | Purchase | 15,810 | $2.48 | $39.2K | 2,684,180(I) | View → |
| Jul 6, 2026 | Jul 9 12:06 AM | Kevin Tang10% Owner | Purchase | 27,062 | $2.49 | $67.4K | 2,668,370(I) | View → |
| Jul 1, 2026 | Jul 6 9:44 PM | Keith Crandell10% Owner | Sale | 16,000 | $2.49 | $39.8K | 0(I) | View → |
| Jul 1, 2026 | Jul 6 9:43 PM | ARCH Venture Fund IX, L.P.10% Owner | Sale | 16,000 | $2.49 | $39.8K | 0(I) | View → |
| Jul 2, 2026 | Jul 2 11:45 PM | Kevin Tang10% Owner | Purchase | 9,821 | $2.49 | $24.5K | 2,641,308(I) | View → |
| Jul 1, 2026 | Jul 2 11:45 PM | Kevin Tang10% Owner | Purchase | 71,612 | $2.49 | $178.3K | 2,631,487(I) | View → |
| Jun 30, 2026 | Jul 2 11:45 PM | Kevin Tang10% Owner | Purchase | 26,030 | $2.54 | $66.1K | 2,559,875(I) | View → |
| Jun 29, 2026 | Jun 29 11:56 PM | Kevin Tang10% Owner | Purchase | 64,762 | $2.47 | $160.0K | 2,533,845(I) | View → |
| Jun 26, 2026 | Jun 29 11:56 PM | Kevin Tang10% Owner | Purchase | 75,181 | $2.55 | $191.7K | 2,469,083(I) | View → |
| Jun 25, 2026 | Jun 29 11:56 PM | Kevin Tang10% Owner | Purchase | 146,390 | $2.48 | $363.1K | 2,393,902(I) | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Jul 1, 2026 | Jul 6 9:44 PM | Keith Crandell10% Owner | Option Exercise | 16,000 | $1.03 | 0(I) | View → |
| Jul 1, 2026 | Jul 6 9:43 PM | ARCH Venture Fund IX, L.P.10% Owner | Option Exercise | 16,000 | $1.03 | 0(I) | View → |
| Jun 15, 2026 | Jun 15 11:40 PM | Nancy WhitingDirector | Grant/Award | 32,000 | $1.40 | 32,000(D) | View → |
| Jun 15, 2026 | Jun 15 11:36 PM | Jonathan E LimDirector | Grant/Award | 48,000 | $1.40 | 48,000(D) | View → |
| Jun 15, 2026 | Jun 15 11:31 PM | James ChristensenDirector | Grant/Award | 32,000 | $1.40 | 32,000(D) | View → |
| Jun 15, 2026 | Jun 15 11:28 PM | Jennifer LewDirector | Grant/Award | 32,000 | $1.40 | 32,000(D) | View → |
| Jan 23, 2026 | Jan 26 12:00 PM | Jessica OienChief Legal Officer and Corporate Secretary | Grant/Award | 220,000 | $1.26 | 220,000(D) | View → |
| Jan 23, 2026 | Jan 26 12:00 PM | Christian HassigChief Scientific Officer | Grant/Award | 230,000 | $1.26 | 230,000(D) | View → |
| Jan 23, 2026 | Jan 26 12:00 PM | Robert DoebeleChief Medical Officer | Grant/Award | 230,000 | $1.26 | 230,000(D) | View → |
| Jan 23, 2026 | Jan 26 12:00 PM | Zachary HornbyDirector, President & CEO | Grant/Award | 600,000 | $1.26 | 600,000(D) | View → |
| Jan 23, 2026 | Jan 26 12:00 PM | David A HinkleSenior VP, Finance, Controller and Treasurer | Grant/Award | 140,000 | $1.26 | 140,000(D) | View → |