BOLD

Boundless Bio, Inc.

Boundless Bio, Inc. (BOLD) has 6 SEC Form 4 filings (20 transaction rows) in the rolling window, disclosed by 3 distinct insiders. Most recent filing: Jul 13, 2026.

The most active filer is 10% Owner TANG KEVIN with 12 filings. Insiders have net bought $1.3M over the trailing 6 months.

  • Industry:Biotechnology
  • CEO:Zachary Hornby
  • Employees:64
  • HQ:San Diego, CA, US
  • IPO:2016-07-20

Insider Buying

$1.3M

reported purchases (SEC code P)

Insider Selling

$80K

reported sales (SEC code S)

Unique Insiders

3

in the rolling window

Market Cap

$55.3M

latest known value

Source
Purchase$17Jul 13SEC ↗
Purchase$105KJul 13SEC ↗
Purchase$117KJul 13SEC ↗
Purchase$67KJul 9SEC ↗
Purchase$39KJul 9SEC ↗
Purchase$35KJul 9SEC ↗
CRANDELL KEITHFirst filing
Sale$40KJul 6SEC ↗
Sale$40KJul 6SEC ↗
Purchase$66KJul 2SEC ↗
Purchase$178KJul 2SEC ↗
Purchase$24KJul 2SEC ↗
Purchase$363KJun 29SEC ↗
Purchase$192KJun 29SEC ↗
Purchase$160KJun 29SEC ↗

Related companies

Boundless Bio, Inc. is in the Healthcare sector.