Truelink to sell Koch Filter to Atmus for $450 million

LOS ANGELES - Truelink Capital announced Monday it has entered into a definitive agreement to sell Koch Filter Corporation to Atmus Filtration Technologies Inc. (NYSE:ATMU) for $450 million in cash. Atmus shares are currently trading at $48.90, having surged over 31% in the past six months, according to InvestingPro data.

Koch Filter, a subsidiary of Air Distribution Technologies, designs and manufactures air filtration products for commercial markets. The company produces pleated filters, high efficiency filters, and HEPA filters with manufacturing operations in Louisville, Kentucky, East Greenville, Pennsylvania, Houston, Texas, and Mira Loma, California.

The transaction is expected to close in the first quarter of 2026, subject to customary closing conditions.

"This transaction is a significant milestone for both Koch Filter and ADTi," said Todd Golditch, Co-Founder and Managing Partner of Truelink, in the press release statement.

Mark Mattingly, CEO of Koch Filter, stated, "Given all the recent investments we have made in our business, we are well positioned to accelerate our growth and continue delivering innovative, high-quality filtration solutions to the market."

The sale will allow Air Distribution Technologies to focus on its core business of engineered air distribution solutions, according to the company.

Founded in 1966, Koch Filter is described as one of the only nationwide independent scaled platforms in the air filtration space, offering products used across diverse applications.

Lincoln International is serving as the exclusive financial advisor to Truelink and Air Distribution Technologies for the transaction, while Benesch is serving as legal advisor. Jefferies LLC is acting as financial advisor to Atmus.

Truelink Capital acquired Air Distribution Technologies in 2024 through a corporate carve-out from Johnson Controls International plc.

In other recent news, Atmus Filtration Technologies reported impressive financial results for the third quarter of 2025. The company exceeded analysts’ expectations with an adjusted earnings per share of $0.69, compared to the forecasted $0.53. Revenue also surpassed projections, reaching $448 million against a forecast of $413 million. In addition to these strong earnings, Atmus announced a definitive agreement to acquire Koch Filter Corporation for $450 million in cash. This acquisition will expand Atmus’s product offerings into industrial air filtration and provide access to established customers in various sectors. Koch Filter generated $156 million in revenue in the fiscal year ending September 30, 2025. Furthermore, Atmus declared a quarterly cash dividend of $0.055 per common share, payable on December 10, 2025. These developments indicate significant growth and strategic moves for the company.

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