Tang Kevin
10% owner
Buy
Calculated transaction value
$597.6
249 shares @ $2.4
Traded
Nov 10, 2026
Filed
Nov 10, 2026
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Boundless Bio, Inc.
BOLD
Transactions reported in official disclosures
46 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Tang Kevin 10% owner | Nov 10, 2026 Same-day filing | Buy Nov 10, 2026 | $597.6 Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Nov 10, 2026 4-day lag | Buy Nov 6, 2026 | $4.08K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Nov 5, 2026 Same-day filing | Buy Nov 5, 2026 | $20.14K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Nov 5, 2026 1-day lag | Buy Nov 4, 2026 | $1.24K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Nov 5, 2026 2-day lag | Buy Nov 3, 2026 | $5.41K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 29, 2026 2-day lag | Buy Oct 27, 2026 | $25.7K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 26, 2026 Same-day filing | Buy Oct 26, 2026 | $22.86K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 26, 2026 3-day lag | Buy Oct 23, 2026 | $14.84K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 26, 2026 4-day lag | Buy Oct 22, 2026 | $13.92K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 20, 2026 Same-day filing | Buy Oct 20, 2026 | $521.4 Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 20, 2026 1-day lag | Buy Oct 19, 2026 | $42.59K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 20, 2026 1-day lag | Buy Oct 19, 2026 | $29.93K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Oct 20, 2026 4-day lag | Buy Oct 16, 2026 | $276.55K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Aug 28, 2026 2-day lag | Sale Aug 26, 2026 | $54.35K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 21, 2026 Same-day filing | Buy Jul 21, 2026 | $7.26K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 21, 2026 1-day lag | Buy Jul 20, 2026 | $3.96K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 21, 2026 4-day lag | Buy Jul 17, 2026 | $646.6 Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 16, 2026 Same-day filing | Buy Jul 16, 2026 | $45.12K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 16, 2026 1-day lag | Buy Jul 15, 2026 | $3.9K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 16, 2026 2-day lag | Buy Jul 14, 2026 | $106.62K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 13, 2026 Same-day filing | Buy Jul 13, 2026 | $116.67K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 13, 2026 3-day lag | Buy Jul 10, 2026 | $105.38K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 13, 2026 4-day lag | Buy Jul 9, 2026 | $17.36 Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 8, 2026 Same-day filing | Buy Jul 8, 2026 | $35.27K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 8, 2026 1-day lag | Buy Jul 7, 2026 | $39.21K Filed shares x price | SEC Form 4 View filing | |
| Tang Kevin 10% owner | Jul 8, 2026 2-day lag | Buy Jul 6, 2026 | $67.38K Filed shares x price | SEC Form 4 View filing | |
| Arch Venture Fund Ix, L.p. 10% owner | Jul 6, 2026 5-day lag | Exercise Jul 1, 2026 | $16.48K Filed shares x price | SEC Form 4 View filing | |
| Crandell Keith 10% owner | Jul 6, 2026 5-day lag | Exercise Jul 1, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Crandell Keith 10% owner | Jul 6, 2026 5-day lag | Exercise Jul 1, 2026 | $16.48K Filed shares x price | SEC Form 4 View filing | |
| Arch Venture Fund Ix, L.p. 10% owner | Jul 6, 2026 5-day lag | Exercise Jul 1, 2026 | $0 Filed shares x price | SEC Form 4 View filing |
Tang Kevin
10% owner
Buy
Calculated transaction value
$4.08K
1,700 shares @ $2.4
Traded
Nov 6, 2026
Filed
Nov 10, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$20.14K
8,390 shares @ $2.4
Traded
Nov 5, 2026
Filed
Nov 5, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$1.24K
517 shares @ $2.4
Traded
Nov 4, 2026
Filed
Nov 5, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$5.41K
2,255 shares @ $2.4
Traded
Nov 3, 2026
Filed
Nov 5, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$25.7K
10,707 shares @ $2.4
Traded
Oct 27, 2026
Filed
Oct 29, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$22.86K
9,606 shares @ $2.38
Traded
Oct 26, 2026
Filed
Oct 26, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$14.84K
6,234 shares @ $2.38
Traded
Oct 23, 2026
Filed
Oct 26, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$13.92K
5,800 shares @ $2.4
Traded
Oct 22, 2026
Filed
Oct 26, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$521.4
220 shares @ $2.37
Traded
Oct 20, 2026
Filed
Oct 20, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$42.59K
18,279 shares @ $2.33
Traded
Oct 19, 2026
Filed
Oct 20, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$29.93K
12,790 shares @ $2.34
Traded
Oct 19, 2026
Filed
Oct 20, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$276.55K
118,185 shares @ $2.34
Traded
Oct 16, 2026
Filed
Oct 20, 2026
Tang Kevin
10% owner
Sale
Calculated transaction value
$54.35K
18,300 shares @ $2.97
Traded
Aug 26, 2026
Filed
Aug 28, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$7.26K
2,975 shares @ $2.44
Traded
Jul 21, 2026
Filed
Jul 21, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$3.96K
1,623 shares @ $2.44
Traded
Jul 20, 2026
Filed
Jul 21, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$646.6
265 shares @ $2.44
Traded
Jul 17, 2026
Filed
Jul 21, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$45.12K
18,491 shares @ $2.44
Traded
Jul 16, 2026
Filed
Jul 16, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$3.9K
1,600 shares @ $2.44
Traded
Jul 15, 2026
Filed
Jul 16, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$106.62K
43,878 shares @ $2.43
Traded
Jul 14, 2026
Filed
Jul 16, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$116.67K
48,211 shares @ $2.42
Traded
Jul 13, 2026
Filed
Jul 13, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$105.38K
43,367 shares @ $2.43
Traded
Jul 10, 2026
Filed
Jul 13, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$17.36
7 shares @ $2.48
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$35.27K
14,338 shares @ $2.46
Traded
Jul 8, 2026
Filed
Jul 8, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$39.21K
15,810 shares @ $2.48
Traded
Jul 7, 2026
Filed
Jul 8, 2026
Tang Kevin
10% owner
Buy
Calculated transaction value
$67.38K
27,062 shares @ $2.49
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Arch Venture Fund Ix, L.p.
10% owner
Exercise
Calculated transaction value
$16.48K
16,000 shares @ $1.03
Traded
Jul 1, 2026
Filed
Jul 6, 2026
Crandell Keith
10% owner
Exercise
Calculated transaction value
$0
16,000 shares @ $0
Traded
Jul 1, 2026
Filed
Jul 6, 2026
Crandell Keith
10% owner
Exercise
Calculated transaction value
$16.48K
16,000 shares @ $1.03
Traded
Jul 1, 2026
Filed
Jul 6, 2026
Arch Venture Fund Ix, L.p.
10% owner
Exercise
Calculated transaction value
$0
16,000 shares @ $0
Traded
Jul 1, 2026
Filed
Jul 6, 2026