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Boundless Bio, Inc.

BOLD Net buying
CIK 0001782303 #4584 in the set updated 17 Sep 2026
Bought (12 mo)
$1.52M
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$134.03K
$0.00 on a plan · $79.68K straight out of an exercise
Sold at will
$54.35K
1 of 3 sales
Net
+$1.38M
+$1.46M against sales at will

By person

3 insiders · 25 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
TANG KEVIN
10% owner
$1.52M (22)
$54.35K (1)
+$1.46M
5,699,570
25.06%
$16.93M
+11.6%
ARCH Venture Fund IX, L.P. entity
10% owner
—
$39.84K (1) scheduled
−$39.84K
0
0.0000%
$0.00
—
CRANDELL KEITH
10% owner
—
$39.84K (1) scheduled
−$39.84K
0
0.0000%
$0.00
—

Individual transactions

2
Insider
Date
Role
Action
Shares
Price
Amount
ARCH Venture Fund IX, L.P.
1 Jul 2026
10% owner
Sold after exercise indirect
16,000
$2.49
$39.84K
CRANDELL KEITH
1 Jul 2026
10% owner
Sold after exercise indirect
16,000
$2.49
$39.84K
Show all 25 transactions →

What was left out

Form 4 filings counted 18
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 9
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 2
Sales at will 1
Transactions with no price 0
Shares from compensation/vesting 32,000
History held since 29 Mar 2024