Atmus Reports Strong Q4 Earnings and Acquires Koch Filter
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Nov 24 2025
0mins
Should l Buy ATMU?
Source: SeekingAlpha
Atmus Filtration Technologies Inc. saw its stock rise by 3.91%, reaching a 52-week high, following the release of its Q4 2025 financial results and the announcement of its acquisition of Koch Filter.
The company reported a non-GAAP EPS of $0.66 for Q4, exceeding expectations by $0.09, and net sales of $447 million, a 9.8% increase year-over-year. The acquisition of Koch Filter for $450 million is expected to enhance Atmus's competitiveness in the filtration market, particularly in the HVAC sector. Additionally, J.P. Morgan upgraded Atmus's rating, reflecting confidence in its growth potential.
This strong performance and strategic acquisition are likely to attract more investor interest, reinforcing Atmus's position in the market and potentially leading to further stock appreciation.
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Analyst Views on ATMU
Wall Street analysts forecast ATMU stock price to rise
5 Analyst Rating
4 Buy
1 Hold
0 Sell
Strong Buy
Current: 54.820
Low
54.00
Averages
60.00
High
64.00
Current: 54.820
Low
54.00
Averages
60.00
High
64.00
About ATMU
Atmus Filtration Technologies Inc. is engaged in filtration and media solutions. The Company designs and manufactures advanced filtration products, principally under the Fleetguard brand, that enable lower emissions and provide superior asset protection. It serves customers across the truck, bus, agriculture, construction, mining, marine and power generation vehicle, and equipment markets, along with providing comprehensive aftermarket support and solutions. Its products include fuel filters, lube filters, air filters, crankcase ventilation, hydraulic filters and coolants and other chemicals. It offers products for first fit and aftermarket applications to original equipment manufacturers, dealers/distributors, and end-users. The Company produces and sells Fleetguard branded products across North America, Europe, South America, Asia, Australia, and the African continents. Its Fleetguard branded products are available through distribution centers worldwide.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
Bayberry Capital Fully Exits Atmus Filtration Technologies Stake
- Position Change: According to a February 17, 2026 SEC filing, Bayberry Capital sold its entire holding of 282,500 shares in Atmus Filtration Technologies during Q4 2025, resulting in a $12.74 million decrease in its position, indicating a strategic portfolio adjustment.
- Company Performance: Atmus reported $1.76 billion in sales for 2025, up from $1.67 billion in 2024, with net income reaching $207 million, demonstrating solid financial performance amid stable industrial demand.
- Market Performance: As of now, Atmus shares are priced at $56.72, reflecting a 51% increase over the past year, significantly outperforming the S&P 500's approximately 21% gain during the same period, indicating strong market confidence in its growth prospects.
- Investor Analysis: Bayberry's exit does not imply a negative outlook on Atmus's fundamentals but may reflect portfolio management considerations, as its largest holdings remain concentrated in companies like Lionsgate and Churchill Downs, showcasing a diversified investment strategy.
See More
Bayberry Capital Fully Exits Atmus Filtration Technologies Stake
- Shareholding Change: Bayberry Capital sold 282,500 shares of Atmus Filtration Technologies in Q4 2026, resulting in a $12.74 million decrease in its position value, fully exiting its investment in the company.
- Financial Performance: Despite Bayberry's exit, Atmus achieved $1.76 billion in sales for 2025, a 5.4% increase year-over-year, with net income of $207 million and adjusted EBITDA of $354 million, indicating stability in the industrial filtration market.
- Market Demand: Atmus's Fleetguard products cater to transportation, construction, agriculture, and power generation sectors, which, while not explosive in growth, generate consistent cash flows and strong replacement demand, suggesting robust fundamentals.
- Portfolio Adjustment: Bayberry's exit appears to be a strategic portfolio decision, as its largest holdings are concentrated in companies like Lionsgate Studios, Churchill Downs, and WESCO International, indicating a preference for other investment opportunities.
See More
Port Capital Increases Stake in Atmus Filtration Technologies
- Stake Increase: Port Capital LLC filed with the SEC on February 17, 2026, revealing an increase of 446,260 shares in Atmus Filtration Technologies, with an estimated transaction value of $21.60 million, reflecting confidence in the company's growth potential and investment strategy.
- Value Growth: The value of Atmus Filtration's position rose by $26.10 million at quarter-end, indicating a positive impact from both share purchases and price changes, which further solidifies Port Capital's investment stance in the company.
- Market Performance: As of March 9, 2026, Atmus Filtration shares were priced at $58.21, up 55.7% over the past year, with a one-year alpha of 36 percentage points compared to the S&P 500, showcasing its strong market performance.
- Strategic Acquisition: Atmus's recent $450 million acquisition of Koch Filter allows entry into the rapidly growing air filtration market, particularly in data centers and power generation, indicating the company's strategy to leverage AI trends for new growth opportunities and enhance its competitive edge.
See More
Port Capital Increases Stake in Atmus Filtration Technologies
- Increased Holdings: Port Capital LLC reported an increase of 446,260 shares in Atmus Filtration Technologies as of February 17, 2026, with an estimated transaction value of $21.60 million, reflecting confidence in the company's growth potential.
- Quarter-End Value Growth: As of December 31, 2025, the value of Port Capital's position in Atmus rose by $26.10 million, indicating the dual impact of trading activity and price movements, bringing its stake to 1.96% of reported assets under management.
- Strong Market Performance: As of March 9, 2026, Atmus Filtration's stock was priced at $58.21, representing a 55.7% increase over the past year, with a 36 percentage point alpha over the S&P 500, showcasing its robust performance in the heavy asset sector.
- Strategic Acquisition: Atmus, spun off from Cummins in 2023, acquired Koch Filter for $450 million, entering the rapidly growing air filtration market, particularly in data centers and power generation, thereby solidifying its market position and laying the groundwork for future growth.
See More
Stocks Recover Losses from Iran
- Market Reaction: The S&P 500 index has returned to its previous levels prior to the attacks in Iran.
- Impact of Events: The market's recovery indicates resilience despite geopolitical tensions.
See More
Trade Court Clears Path for Widespread Tariff Reimbursements
Court Ruling: A judge in the Court of International Trade ordered Customs and Border Protection to refund tariffs imposed under the International Emergency Economic Powers Act.
Implications for Importers: This ruling, stemming from a case brought by Atmus Filtration, may lead to refunds for other importers affected by similar tariff impositions.
See More
Bayberry Capital Fully Exits Atmus Filtration Technologies Stake
- Position Change: According to a February 17, 2026 SEC filing, Bayberry Capital sold its entire holding of 282,500 shares in Atmus Filtration Technologies during Q4 2025, resulting in a $12.74 million decrease in its position, indicating a strategic portfolio adjustment.
- Company Performance: Atmus reported $1.76 billion in sales for 2025, up from $1.67 billion in 2024, with net income reaching $207 million, demonstrating solid financial performance amid stable industrial demand.
- Market Performance: As of now, Atmus shares are priced at $56.72, reflecting a 51% increase over the past year, significantly outperforming the S&P 500's approximately 21% gain during the same period, indicating strong market confidence in its growth prospects.
- Investor Analysis: Bayberry's exit does not imply a negative outlook on Atmus's fundamentals but may reflect portfolio management considerations, as its largest holdings remain concentrated in companies like Lionsgate and Churchill Downs, showcasing a diversified investment strategy.
See More
Bayberry Capital Fully Exits Atmus Filtration Technologies Stake
- Shareholding Change: Bayberry Capital sold 282,500 shares of Atmus Filtration Technologies in Q4 2026, resulting in a $12.74 million decrease in its position value, fully exiting its investment in the company.
- Financial Performance: Despite Bayberry's exit, Atmus achieved $1.76 billion in sales for 2025, a 5.4% increase year-over-year, with net income of $207 million and adjusted EBITDA of $354 million, indicating stability in the industrial filtration market.
- Market Demand: Atmus's Fleetguard products cater to transportation, construction, agriculture, and power generation sectors, which, while not explosive in growth, generate consistent cash flows and strong replacement demand, suggesting robust fundamentals.
- Portfolio Adjustment: Bayberry's exit appears to be a strategic portfolio decision, as its largest holdings are concentrated in companies like Lionsgate Studios, Churchill Downs, and WESCO International, indicating a preference for other investment opportunities.
See More
Port Capital Increases Stake in Atmus Filtration Technologies
- Stake Increase: Port Capital LLC filed with the SEC on February 17, 2026, revealing an increase of 446,260 shares in Atmus Filtration Technologies, with an estimated transaction value of $21.60 million, reflecting confidence in the company's growth potential and investment strategy.
- Value Growth: The value of Atmus Filtration's position rose by $26.10 million at quarter-end, indicating a positive impact from both share purchases and price changes, which further solidifies Port Capital's investment stance in the company.
- Market Performance: As of March 9, 2026, Atmus Filtration shares were priced at $58.21, up 55.7% over the past year, with a one-year alpha of 36 percentage points compared to the S&P 500, showcasing its strong market performance.
- Strategic Acquisition: Atmus's recent $450 million acquisition of Koch Filter allows entry into the rapidly growing air filtration market, particularly in data centers and power generation, indicating the company's strategy to leverage AI trends for new growth opportunities and enhance its competitive edge.
See More
Port Capital Increases Stake in Atmus Filtration Technologies
- Increased Holdings: Port Capital LLC reported an increase of 446,260 shares in Atmus Filtration Technologies as of February 17, 2026, with an estimated transaction value of $21.60 million, reflecting confidence in the company's growth potential.
- Quarter-End Value Growth: As of December 31, 2025, the value of Port Capital's position in Atmus rose by $26.10 million, indicating the dual impact of trading activity and price movements, bringing its stake to 1.96% of reported assets under management.
- Strong Market Performance: As of March 9, 2026, Atmus Filtration's stock was priced at $58.21, representing a 55.7% increase over the past year, with a 36 percentage point alpha over the S&P 500, showcasing its robust performance in the heavy asset sector.
- Strategic Acquisition: Atmus, spun off from Cummins in 2023, acquired Koch Filter for $450 million, entering the rapidly growing air filtration market, particularly in data centers and power generation, thereby solidifying its market position and laying the groundwork for future growth.
See More
Stocks Recover Losses from Iran
- Market Reaction: The S&P 500 index has returned to its previous levels prior to the attacks in Iran.
- Impact of Events: The market's recovery indicates resilience despite geopolitical tensions.
See More
Trade Court Clears Path for Widespread Tariff Reimbursements
Court Ruling: A judge in the Court of International Trade ordered Customs and Border Protection to refund tariffs imposed under the International Emergency Economic Powers Act.
Implications for Importers: This ruling, stemming from a case brought by Atmus Filtration, may lead to refunds for other importers affected by similar tariff impositions.
See More
