SCHEDULE 13G

INTEGRATED RAIL AND RES ACQ

Class A Common Stock, par value $0.0001 per share · CUSIP: 45827R106

Event date: 2024-12-31

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• DONDERO JAMES D

  Shares: 0.00 · Class: 0.0%

• NEXPOINT ASSET MANAGEMENT, L.P.

  Shares: 0.00 · Class: 0.0%

• NexPoint Merger Arbitrage Fund

  Shares: 0.00 · Class: 0.0%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.