Exhibit 99.1 Icahn Enterprises L.P. (Nasdaq: IEP) Today Announced Its First Quarter 2024 Financial Results Sunny Isles Beach, Fla, May 8, 2024 – · IEP declares first quarter distribution of 1.00perdepositaryunitFinancialSummary(NetlossandAdjustedEBITDAfiguresincommentarybelowareattributabletoIcahnEnterprises,unlessotherwisespecified)ForthethreemonthsendedMarch31,2024,revenueswere2.5 billion and net loss was 38million,oralossof0.09 per depositary unit. For the three ...