Exhibit 99.1 NEWS RELEASE FOR IMMEDIATE RELEASE Trinity Industries, Inc. Announces First Quarter 2024 Results Reports both quarterly GAAP and adjusted earnings from continuing operations of $0.33 per diluted share Lease fleet utilization of 97.5$57 million and $12 million, respectively Delivered 4,695 railcars in the quarter; backlog of$2.9 billion at quarter-end DALLAS, Texas – ...