Atmus to acquire Koch Filter Corp for $450M to enter industrial air filtration market

On November 21, 2025, Atmus Filtration Technologies Inc., a Delaware corporation (the “ Registrant, ” “ we ,” “ us ” or “ our ”), entered into a stock purchase agreement (the “ Purchase Agreement ”) with Cummins Filtration Inc., an Indiana corporation and a wholly-owned subsidiary of the Registrant (the “ Buyer ”), and Air Distribution Technologies, Inc., a Delaware corporation (the “ Seller ”), pursuant to which the Buyer agreed to purchase all of the issued and outstanding shares of Koch Filter Corporation, a Kentucky corporation and wholly owned subsidiary of the Seller (“ Koch ”), in exchange for $450 million, subject to certain adjustments as set forth in the Purchase Agreement (together with the other transactions contemplated thereby, the “ Transaction ”).