---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-051802"
form_type: "8-K"
ticker: "GPAT"
cik: "0001834526"
company_name: "GP-Act III Acquisition Corp."
filed_at: "2026-05-05T23:59:59+00:00"
generated_at: "2026-05-14T23:33:05.134617+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# GP-Act III Acquisition eliminates dual-class structure; all 7.2M Founder Shares converted to Class A

## Summary
- Sponsor HoldCo and three independent directors converted all 7,187,500 Class B shares into Class A shares on a one-for-one basis.
- After conversion, approximately 35,937,500 Class A shares outstanding; zero Class B shares remain.
- Conversion does not change shareholder voting power or vote counting at any meeting.
- Letter Agreement terms on voting, transfer restrictions, and trust waiver continue to apply to converted shares.

## SEC filing metadata
- accession: 0001213900-26-051802
- form_type: 8-K
- ticker: GPAT
- cik: 0001834526
- company_name: GP-Act III Acquisition Corp.
- filed_at: 2026-05-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1834526/000121390026051802/0001213900-26-051802-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1834526/000121390026051802/ea0288746-8k_gpact3.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-051802
- JSON: https://secwatch.observer/filing/0001213900-26-051802.json
- Plain text: https://secwatch.observer/filing/0001213900-26-051802.txt

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