Boundless Bio, Inc.
2026 Annual Meeting
of Stockholders

The secure way to view our proxy materials and to vote online.

Meeting Materials

Annual Report

View an enhanced version of our Annual Report on Form 10-K.

Proxy Statement

View an enhanced version of our Proxy Statement.

Request Materials

Request paper copies of our Proxy Materials online, by email, or by phone by dialing 866-648-8133.

Voting

Your vote is IMPORTANT!
Vote your shares online now or by phone by dialing 866-390-5243. 
Please vote by 8:59 PM Pacific Time on June 14, 2026.

Voting

Meeting Details

The meeting will be held entirely online via live audio webcast.
You must register to attend the meeting online and/or to participate in the meeting by 2:00 PM Pacific Time on June 14, 2026.
After registering below, further instructions will be emailed to you, including a unique link to access the meeting.

Date:

June 15, 2026

Virtual Meeting:

Time:

11:00 AM Pacific Time

Who We Are

Guided by science, we are relentlessly committed to bringing transformative new medicines to patients with oncogene amplified cancer. Requisite to our success are boldness, creativity, and collaboration.

United in purpose, we are a team of experienced precision oncology leaders with deep scientific, clinical, diagnostic, and business expertise. We are applying this experience to develop an entirely new vertical of cancer therapeutics, ecDNA-directed therapies (ecDTx).

At Boundless, we’re all in. We are unbound by convention, bound to save lives.

About Us