Consistent With its Long-Term Financial Plan NiSource Inc. Announces its Intention to Remarket the Series C Mandatory Convertible Preferred Stock Relating to its 2021 Equity Units Offering

MERRILLVILLE, Ind., Sept. 15, 2023 /PRNewswire/ -- NiSource Inc. (NYSE: NI) ("NiSource") announced today its intention to remarket, subject to market and other conditions, up to 862,500 shares of its Series C Mandatory Convertible Preferred Stock, par value $0.01 per share, with a liquidation preference of $1,000 per share (the "Mandatory Convertible Preferred Stock"), originally issued on April 19, 2021 as part of NiSource's equity units ("2021 Equity Units"). The remarketing of the Series C Mandatory Convertible Preferred Stock is in accordance with NiSource's long-term financial plan but is subject to market and other conditions. NiSource intends to designate the period beginning on October 2, 2023 and ending on October 23, 2023 for the remarketing.