{"url_path":"/sec/brunw/8-k/2026-05-14/item-4-01","section_key":"item-4-01","section_title":"Item 4.01 Changes in Registrant’s Certifying Accountant","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-05-14","source_url":"https://www.sec.gov/Archives/edgar/data/2090646/0001493152-26-023208-index.html","accession_number":"0001493152-26-023208","cik":"0002090646","ticker":"BRUN","issuer_name":"Boost Run Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/2090646/0001493152-26-023208-index.html","primary_entity_key":"0002090646","primary_entity_name":"Boost Run Inc."},"word_count":225,"has_tables":true,"body_markdown":"Item\n4.01 Changes in Registrant’s Certifying Accountant\n\n \n\nUpon\nthe consummation of the Business Combination, Pubco appointed Elliott Davis, PLLC as Pubco’s independent registered public\naccounting firm to audit Pubco’s consolidated financial statements as of and for the year ending December 31, 2026.\n\n \n\nAccordingly,\nWithumSmith+Brown, PC, the independent registered public accounting firm for Willow Lane prior to the Business\nCombination, was dismissed as of the date of the consummation of the Business Combination.\n\n \n\nThere\nwere no “disagreements” (as such term is defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) with\nthe prior auditor on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedures,\nwhich disagreements, if not resolved to the satisfaction of the prior auditor, would have caused the prior auditor to make reference\nthereto in its report on the pre-merger financial statements for such periods. There have been no “reportable events” (as\nsuch term is defined in Item 304(a)(1)(v) of Regulation S-K).\n\n \n\nPubco\nprovided the prior auditor with a copy of the foregoing disclosures and has requested that the prior auditor furnish Pubco with\na letter addressed to the SEC stating whether it agrees with the statements made by Pubco set forth above. A copy of the prior\nauditor’s letter, dated May 14, 2026, is filed as Exhibit 16.1 to this Current Report on Form 8-K."}