---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-058488"
form_type: "8-K"
ticker: "IRHO"
cik: "0002051985"
company_name: "Iron Horse Acquisition II Corp."
filed_at: "2026-05-18T20:31:32+00:00"
generated_at: "2026-05-18T20:47:52.418420+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Iron Horse (IRHO) files S-4 for merger with ELECTRA AI; deal value ~$250M, ticker AIBR

## Summary
- Registration statement on Form S-4 filed with SEC on May 14, 2026, for business combination with ELECTRA AI.
- Implied equity value of approximately $250 million+, including earn-out targets; expected close in H2 2026.
- Amendment to merger agreement revises calculation of Aggregate Merger Consideration and Conversion Ratio.
- Lock-up for ELECTRA shareholders: staggered release in four equal quarterly installments starting ~120 days post-close.
- Combined company to trade on Nasdaq under ticker "AIBR" upon closing.

## SEC filing metadata
- accession: 0001213900-26-058488
- form_type: 8-K
- ticker: IRHO
- cik: 0002051985
- company_name: Iron Horse Acquisition II Corp.
- filed_at: 2026-05-18T20:31:32+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2051985/000121390026058488/0001213900-26-058488-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2051985/000121390026058488/ea0290877-8k425_iron2.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-058488
- JSON: https://secwatch.observer/filing/0001213900-26-058488.json
- Plain text: https://secwatch.observer/filing/0001213900-26-058488.txt

## Key facts
- Material Agreements
  Iron Horse Acquisition II Corp. amended Amendment with Electra Vehicles, Inc. (effective 2026-05-14).
  - Action: amendment
  - Agreement: merger
  - Counterparty: Electra Vehicles, Inc.
  - Effective: 2026-05-14
  source text: On May 14, 2026, Iron Horse Acquisition II Corp. (“ IRHO ”) entered into an Amendment (the “ Amendment ”) to the Merger Agreement by and among IRHO, IRHO Merger Sub Inc., a Delaware corporation and a direct, wholly owned subsidiary of IRHO (“ Merger Sub ”), and Electra Vehicles, Inc., a Delaware corporation (“ Electra ”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/2051985/000121390026058488/0001213900-26-058488-index.htm

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