Ahlstrom’s net sales in the third quarter of 2025 amounted to €743.1 million ($864.3 million). At constant currency, reported net sales increased by 4%, primarily driven by the acquisition of Stevens Point. Adjusted for business portfolio changes, including the acquisition of Stevens Point in May 2025 and the divestment of the Aspa pulp mill in October 2024, as well as currency fluctuations, net sales declined by 2%.

Filtration & Life Sciences net sales increased to €191.1 million ($222 million) in Q3 2025, compared to $182 million ($211.7 million) in Q3 2024. In the Protective Materials segment, net sales decreased to €190.4 million ($221.5 million) in Q3 2025, compared to $199 million ($231 million) in Q3 2024. Food & Consumer Packaging net sales increased to €228.2 million ($265.4 million) in Q3 2025, compared to $172.1 million ($200.2 million) in Q3 2024. The Performance Materials Cluster reported net sales of €145.3 million ($169 million) in Q3 2025, down from $176.6 million ($205.4 million) in Q3 2024.