---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-058613"
form_type: "8-K"
ticker: "PLMK"
cik: "0002030482"
company_name: "Plum Acquisition Corp, IV"
filed_at: "2026-05-18T22:48:02+00:00"
generated_at: "2026-05-19T10:07:01.149636+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Plum Acquisition Corp. IV amends business combination agreement, extends key deadlines

## Summary
- Company financial statements deadline extended to June 15, 2026 (audited) and June 30, 2026 (pro forma).
- Antitrust filing deadline extended to July 31, 2026.
- Material consent delivery deadlines extended per updated Schedule 8.01(m).
- Parties: Plum IV, Plum IV Merger Sub, and Controlled Thermal Resources Holdings Inc.

## SEC filing metadata
- accession: 0001213900-26-058613
- form_type: 8-K
- ticker: PLMK
- cik: 0002030482
- company_name: Plum Acquisition Corp, IV
- filed_at: 2026-05-18T22:48:02+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2030482/000121390026058613/0001213900-26-058613-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2030482/000121390026058613/ea0291365-8k425_plum4.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-058613
- JSON: https://secwatch.observer/filing/0001213900-26-058613.json
- Plain text: https://secwatch.observer/filing/0001213900-26-058613.txt

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