Advanced Drainage Systems, Inc.: agrees to acquire StormTrap for $530,000,000

What happened The filing says that on Oct 1, 2026, Advanced Drainage Systems, Inc. and its subsidiary ADS Investment LLC entered into a Securities Purchase Agreement with StormTrap Investors, L.L.C., as representative of the sellers, and certain sellers, pursuant to which the Company will acquire StormTrap Investments, L.L.C. The Sellers agreed to sell all outstanding equity interests of StormTrap Investments, L.L.C. and its direct subsidiaries for approximately $530,000,000, or approximately $450,000,000 when adjusted for the present value of the expected tax benefits, subject to certain purchase price adjustments. The filing says the transaction will be funded by a combination of cash on hand and funds from the Company’s existing credit facility and remains subject to customary closing conditions, including efforts to obtain required antitrust approvals. The filing also says the Company obtained a representations and warranties insurance policy and that the Company issued a press release on Oct 5, 2026 announcing the proposed acquisition.

Key details

• purchase price: approximately $530,000,000 (approximately $450,000,000 when adjusted for present value of expected tax benefits), subject to purchase price adjustments
• agreement date: Oct 1, 2026; press release date: Oct 5, 2026
• funding: cash on hand and funds from the Company’s existing credit facility
• the Company obtained a representations and warranties insurance policy to provide recourse for breaches of the sellers’ representations and warranties, subject to retention, exclusions and policy limits

Why it may matter This filing reports Item 1.01 (entry into a material definitive agreement) covering the Securities Purchase Agreement to acquire StormTrap and Item 7.01 (Regulation FD disclosure) reporting the Oct 5, 2026 press release. A filing does not show why the insider traded or why the company acted.