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CIK 0001782303 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Boundless Bio, Inc.

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Ticker
BOLD
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
830751369
Phone
(858) 766-9912
Business address
11099 NORTH TORREY PINES ROAD, SUITE 150, LA JOLLA, CA, 92037
Open-market buys, last 90 days
$458,375
in 5 filings
Open-market sales, last 90 days
$54,351
in 1 filing

Net +$404,024. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. TANG KEVIN +$404K 10% owner sold <1% of stake
Date Insider Transaction Shares Price Value Owned after
2024-03-27 Burow Kristina Director Grant or award · Stock Option +26,438 26,438
2024-03-27 Hornby Zachary President & CEO Grant or award · Stock Option +162,343 162,343
2024-03-27 Abdollahian Neil Chief Business Officer Grant or award · Stock Option +23,191 23,191
2024-03-27 Whiting Nancy Director Grant or award · Stock Option +13,219 13,219
2024-03-27 Hassig Christian Chief Scientific Officer Grant or award · Stock Option +48,703 48,703

Page 10 of 10 · 185 trades