---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-028780"
form_type: "8-K"
ticker: "PONO"
cik: "0002108164"
company_name: "Pono Capital Four, Inc."
filed_at: "2026-03-17T23:59:59+00:00"
generated_at: "2026-05-15T11:08:34.550849+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Pono Capital Four closes $120M IPO; 12M units at $10 each

## Summary
- Gross IPO proceeds $120M from 12M units at $10/unit; each unit = 1 Class A share + 1 right to receive 1/5 share after business combination.
- Private placement raised $1.9M (190,000 units at $10) from sponsor (160k units) and institutional investor (30k units).
- Net proceeds of $120M (incl. deferred underwriting fees) deposited in trust for public shareholders; company will seek a business combination.
- Board gains four independent directors: Nakamoto, Sayama, Kazama, Bauer; audit and compensation committees formed.
- Underwriter D. Boral Capital has 45-day option to purchase up to 1.8M additional units for over-allotments.

## SEC filing metadata
- accession: 0001213900-26-028780
- form_type: 8-K
- ticker: PONO
- cik: 0002108164
- company_name: Pono Capital Four, Inc.
- filed_at: 2026-03-17T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 3.02, 5.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2108164/000121390026028780/0001213900-26-028780-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2108164/000121390026028780/ea0281918-8k_pono.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-028780
- JSON: https://secwatch.observer/filing/0001213900-26-028780.json
- Plain text: https://secwatch.observer/filing/0001213900-26-028780.txt

## Source-grounded claims
- claim_id: bbc41a6568db52c541be58a3865fbaa64f601423
  claim: Pono Capital Four, Inc.: Adopted amended and restated memorandum and articles of association in connection with the IPO (effective 2026-03-12).
  evidence_excerpt: On March 12, 2026, and in connection with the IPO, the Company adopted its Amended and Restated Memorandum and Articles of Association.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2108164/000121390026028780/0001213900-26-028780-index.htm

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