Advanced Drainage Systems to Acquire StormTrap for $530 Million

Key Facts

1Advanced Drainage Systems announced an agreement to acquire StormTrap for approximately $530 million.

2The deal is expected to be accretive to ADS's adjusted earnings per share in the first year following the expected Q4 2026 close.

3StormTrap generated approximately $165 million in revenue and $40 million in adjusted EBITDA over the past year.

Advanced Drainage Systems announced an agreement to acquire StormTrap for approximately $530 million. Stormwater Solutions reported that the cash transaction is expected to close in the fourth quarter of 2026, as ADS seeks to expand its portfolio into large-volume stormwater storage solutions for space-constrained applications.

StormTrap generated approximately $165 million in revenue and $40 million in adjusted EBITDA over the 12 months ending July 2026. Regarding equity performance, WMS closed at $129.43 on October 5, 2026, having reached a session high of $131.31.