{"url_path":"/sec/bold/10-q/2026/item-5","section_key":"item-5","section_title":"Item 5 Other Information.","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-08","source_url":"https://www.sec.gov/Archives/edgar/data/1782303/0001193125-26-213321-index.html","accession_number":"0001193125-26-213321","cik":"0001782303","ticker":"BOLD","issuer_name":"Boundless Bio, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1782303/0001193125-26-213321-index.html","primary_entity_key":"0001782303","primary_entity_name":"Boundless Bio, Inc."},"word_count":74,"has_tables":true,"body_markdown":"Item 5. Other Information.\n\nRule 10b5-1 Trading Arrangements\n\nFrom time to time, our officers (as defined in Rule 16a-1(f) of the Exchange Act) and directors may adopt, modify, or terminate Rule 10b5-1 trading arrangements or non-Rule 10b5-1 trading arrangements (as each such term is defined in Item 408 of Regulation S-K). During the three months ended March 31, 2026, none of our officers or directors adopted, modified, or terminated such a trading arrangement.\n\n26"}