---
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"
generated_at: "2026-05-17T05:41:52.678101+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Newbury Street shareholders approve business combination extension to Mar 2026; 5,590 shares redeemed

## Summary
- 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.

## SEC filing metadata
- accession: 0001213900-25-091663
- form_type: 8-K
- cik: 0001831978
- company_name: Newbury Street Acquisition Corp
- filed_at: 2025-09-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.03, 5.07, 9.01
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-091663
- JSON: https://secwatch.observer/filing/0001213900-25-091663.json
- Plain text: https://secwatch.observer/filing/0001213900-25-091663.txt

## Key facts
- Governance Changes
  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).
  - Change: charter amendment
  - Effective: 2025-09-24
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/1831978/000121390025091663/0001213900-25-091663-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.