{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-091663","form_type":"8-K","ticker":null,"cik":"0001831978","company_name":"Newbury Street Acquisition Corp","filed_at":"2025-09-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.211575+00:00","generated_at":"2026-05-17T05:41:52.678101+00:00","sec_items":["5.03","5.07","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Newbury Street shareholders approve business combination extension to Mar 2026; 5,590 shares redeemed","bullets":["Extension proposal approved unanimously with 3,595,910 votes for, none against.","Deadline to complete initial business combination extended from Sep 25, 2025 to Mar 25, 2026.","Holders of 5,590 shares redeemed at ~$11.54/share, totaling ~$64,504 removed from trust.","After redemptions, 65,675 public shares remain outstanding.","Charter amendment filed with Delaware Secretary of State on Sep 24, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-091663","json":"https://secwatch.observer/filing/0001213900-25-091663.json","markdown":"https://secwatch.observer/filing/0001213900-25-091663.md","text":"https://secwatch.observer/filing/0001213900-25-091663.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1831978/000121390025091663/0001213900-25-091663-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1831978/000121390025091663/ea0258679-8k_newbury.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:41:52.678101+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"d3629ebbc1dbb644153a846e9bf91767dc6b4e63","claim":"Newbury Street Acquisition Corp: Amended Second Amended and Restated Certificate of Incorporation to extend business combination deadline from September 25, 2025 to March 25, 2026 (effective 2025-09-24).","evidence_excerpt":"On September 24, 2025, the Company filed an amendment to its Second Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware (the “Charter Amendment”) to extend the date by which the Company has to consummate a business combination from September 25, 2025 to March 25, 2026.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1831978/000121390025091663/0001213900-25-091663-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-09-24"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}