SymbolBOLD
NameBOUNDLESS BIO, INC.
SectorHEALTH CARE
RegionNorth America
IndustryBiotechnology: Pharmaceutical Preparations
Address9880 CAMPUS POINT DRIVE,SUITE 120, SAN DIEGO, California, 92121, United States
Telephone(858) 766-9912
Fax
Email
Websitehttps://www.boundlessbio.com
IncorporationUNDEFINED
Incorporated On
Employees
Fiscal Year
Public Since
ExchangesNASDAQ
Auditor
Audit StatusNOT PROVIDED
Reporting Status
CIK
Description

Boundless Bio, Inc., a clinical-stage oncology company, develops cancer therapeutics to address the unmet need of patients with oncogene amplified tumors by targeting extrachromosomal DNA. Its lead product candidate is BBI-355, an oral inhibitor of checkpoint kinase 1 that is in Phase 1/2 clinical trial in patients with oncogene amplified cancers. The company is also developing BBI-825, an oral inhibitor of ribonucleotide reductase, which is in Phase 1/2 clinical trial in cancer patients with resistance gene amplifications; and ecDTx 3 program targeting a kinesin involved with the cellular mechanism for segregation of ecDNA. Boundless Bio, Inc. was formerly known as Pretzel Therapeutics, Inc. and changed its name to Boundless Bio, Inc. in July 2019. The company was incorporated in 2018 and is headquartered in San Diego, California.

Additional info from NASDAQ:
Boundless Bio, Inc., a clinical-stage oncology company, develops cancer therapeutics to address the unmet need of patients with oncogene amplified tumors by targeting extrachromosomal DNA. Its lead product candidate is BBI-355, an oral inhibitor of checkpoint kinase 1 that is in Phase 1/2 clinical trial in patients with oncogene amplified cancers. The company is also developing BBI-825, an oral inhibitor of ribonucleotide reductase, which is in Phase 1/2 clinical trial in cancer patients with resistance gene amplifications; and ecDTx 3 program targeting a kinesin involved with the cellular mechanism for segregation of ecDNA. Boundless Bio, Inc. was formerly known as Pretzel Therapeutics, Inc. and changed its name to Boundless Bio, Inc. in July 2019. The company was incorporated in 2018 and is headquartered in San Diego, California.

2026-04-28 17:05

New Form DEFA14A - Boundless Bio, Inc. <b>Filed:</b> 2026-04-28 <b>AccNo:</b> 0001193125-26-186925 <b>Size:</b> 1 MB

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2026-04-28 17:01

New Form DEF 14A - Boundless Bio, Inc. <b>Filed:</b> 2026-04-28 <b>AccNo:</b> 0001193125-26-186884 <b>Size:</b> 5 MB

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2026-04-17 20:49

Boundless Bio Presents Preclinical Breast Cancer Data from its Oral Kinesin Degrader Program at 2026 AACR Annual Meeting

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2026-04-13 21:15

(99% Neutral) BOUNDLESS BIO, INC. (BOLD) Announces Business Combination

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2026-03-17 20:52

Boundless Bio Announces Upcoming Presentation of Oral Kinesin Degrader Program at the American Association for Cancer Research Annual Meeting 2026

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2026-03-09 11:00

Boundless Bio Reports Fourth Quarter and Full Year 2025 Financial Results and Business Highlights

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Trial ID Title Phase Indication Status Start Date Completion Date Source
NCT07408089 Study of the Kinesin Oral Molecular Degrader BBI-940 in Subjects With Advanced … Phase1 Breast Cancer Recruiting 2026-02-25 2029-05-31 ClinicalTrials.gov
NCT06299761 Study of the RNR Inhibitor BBI-825 in Subjects With Tumors With Resistance Gene… Phase1 Solid Tumor Terminated 2024-03-28 2025-06-25 ClinicalTrials.gov
Total clinical trials: 2