SCHEDULE 13G 0001228922 XXXXXXXX LIVE Class A Common Stock, par value $0.0001 per share 12/31/2024 0001854795 INTEGRATED RAIL & RESOURCES ACQUISITION CORP 45827R106 400 W. MORSE BLVD., SUITE 220 WINTER PARK FL 32789 Rule 13d-1(b) DONDERO JAMES D b X1 0.00 0.00 0.00 0.00 0.00 0.0 IN HC NEXPOINT ASSET MANAGEMENT, L.P. b DE 0.00 0.00 0.00 0.00 0.00 0.0 IA PN NexPoint Merger Arbitrage Fund b DE 0.00 0.00 0.00 0.00 0.00 0.0 IV INTEGRATED RAIL & RESOURCES ACQUISITION CORP 400 W. MORSE BLVD., SUITE 220, WINTER PARK, FLORIDA, 32789. This Schedule 13G (this "Schedule 13G") is being filed on behalf of NexPoint Merger Arbitrage Fund, a Delaware statutory trust, NexPoint Asset Management, L.P., a Delaware limited partnership and James Dondero, a United States citizen (together, the "Reporting Persons"). On March 14, 2024, the Reporting Persons acquired 294,324 shares of common stock (the "Shares") and 147,162 warrants to purchase Shares of the Issuer. On November 21, 2024, the Reporting Persons exercised their right to redeem 294,324 Shares in connection with a special meeting held by the Issuer. After the redemption, the Reporting Person owns 147,162 warrants to purchase Shares of the Issuer, which are not exercisable within 60 days of December 31, 2024. 300 Crescent Court, Suite 700 Dallas, Texas 75201 NexPoint Merger Arbitrage Fund is a Delaware Statutory Trust. NexPoint Asset Management, L.P. is a Delaware limited partnership. James Dondero is a United States citizen. N IV IA HC NexPoint Merger Arbitrage Fund: 0 shares NexPoint Asset Management, L.P.: 0 shares James Dondero: 0 shares NexPoint Merger Arbitrage Fund: 0% NexPoint Asset Management, L.P.: 0% James Dondero: 0% NexPoint Merger Arbitrage Fund: 0 shares NexPoint Asset Management, L.P.: 0 shares James Dondero: 0 shares NexPoint Merger Arbitrage Fund: 0 shares NexPoint Asset Management, L.P.: 0 shares James Dondero: 0 shares NexPoint Merger Arbitrage Fund: 0 shares NexPoint Asset Management, L.P.: 0 shares James Dondero: 0 shares NexPoint Merger Arbitrage Fund: 0 shares NexPoint Asset Management, L.P.: 0 shares James Dondero: 0 shares N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Exhibit 1 - Joint Filing Agreement DONDERO JAMES D /s/ James D. Dondero 02/12/2025 NEXPOINT ASSET MANAGEMENT, L.P. /s/ James D. Dondero 02/12/2025 NexPoint Merger Arbitrage Fund /s/ Frank Waterhouse 02/12/2025