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BOLD
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Boundless Bio, Inc.

BOLD · Healthcare · Boundless Bio, Inc., a clinical-stage oncology company, develops interrogating extrachromosomal DNA (ecDNA) directed therapies for treating…

Boundless Bio, Inc. (BOLD), in the Healthcare sector, has 5 disclosed filings on Paydirt over the trailing twelve months from 1 corporate insider: 5 purchases and 0 sales. Filers took a median of 3 days from execution to disclosure, and the most recent trade was executed Oct 16 and filed Oct 20. The most active filer was Kevin Tang with 5 filings. Data as of Nov 8 2026.

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Filings, ttm
5
5 buys · 0 sells
Traders, ttm
1
1 insider
Volume, ttmiDollar value disclosed in the window
$1.5M
estimated for Congress, as filed for insiders
Median delay
3d
execution to disclosure
Last traded
Oct 16
Filed Oct 20
ADViAverage daily dollar volume
$3.1M
market data
Share price · 12M
$2.36 (+95.0%)
$3.00$2.02$1.05Nov 10 2025May 5Oct 23

Adjusted for splits and dividends.

Volume by month
$711K$356K$0Dec 2024Jun 2025Dec 2025Jun 2026Jun 2026 · buys $711KJul 2026 · buys $507KOct 2026 · buys $277K
Buys $1.5M Sells $0

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months
KT Kevin Tang Director 5 filings · 5 buys, 0 sales
Recent filings
Kevin TangPURCHASE 10% owner $277K
118,185 sh × $2.34
Exec Oct 16
Filed Oct 20 · 5:49 PM ET Kevin TangPURCHASE 10% owner $107K
43,878 sh × $2.43
Exec Jul 14
Filed Jul 16 · 8:10 PM ET Kevin TangPURCHASE 10% owner $222K
91,578 sh across 2 lots
Exec Jul 10
Filed Jul 13 · 7:06 PM ET Kevin TangPURCHASE 10% owner $178K
71,612 sh × $2.49
Exec Jul 1
Filed Jul 2 · 7:45 PM ET Kevin TangPURCHASE 10% owner $711K
284,912 sh across 3 lots
Exec Jun 25
Filed Jun 29 · 7:56 PM ET