WMSAdvanced Drainage Systems, Inc.

1. Oct 5, 2026On October 1, 2026, Advanced Drainage Systems, Inc. and its subsidiary, ADS Investment LLC, a Delaware limited liability company, (together, the “Company”) entered into a Securities Purchase Agreement (the “Purchase Agreement”) with StormTrap Investors, L.L.C., a Delaware limited liability company, as representative …Material agreement entered · Form 8-K
2. Aug 6, 2026On August 6, 2026, the Company issued a press release announcing the approval by the Board of Directors (the "Board") of the Company of the declaration of a cash dividend of $0.20 per share, payable on September 15, 2026, to stockholders of record at the close of business on September 1, 2026.Earnings release · Form 8-K
3. Jun 18, 2026The presentation will be followed by a question-and-answer session. The presentation is scheduled to begin at 9:00 a.m. ET and will be webcast live at investors.ads-pipe.com. A replay will also be available on the website following the event.”Regulation FD disclosure · press release
4. May 21, 2026On May 21, 2026, the Company issued a press release announcing the approval by the Board of Directors (the "Board") of the Company of the declaration of a cash dividend of $0.20 per share, payable on June 15, 2026, to stockholders of record at the close of business on June 1, 2026.Earnings release · Form 8-K
5. Feb 27, 2026Senior Notes Due 2034 On February 27, 2026, Advanced Drainage Systems, Inc. (the “Company”) issued $500.0 million aggregate principal amount of its 5.375% senior notes due 2034 (the “Notes”) pursuant to an Indenture, dated February 27, 2026 (the “Indenture”), among the Company, the guarantors party thereto (as defined …Material agreement entered · Form 8-K
6. Feb 12, 2026For more information, please contact:.Regulation FD disclosure · press release
7. Feb 12, 2026For more information, please contact:.Regulation FD disclosure · press release
8. Feb 5, 2026On February 5, 2026, the Company announced a $1 billion increase in the size of the Company’s existing stock repurchase program (the “Repurchase Program”)Earnings release · Form 8-K
9. Feb 2, 2026On February 2, 2026, Advanced Drainage Systems, Inc. (the “Company”) completed its previously announced acquisition of the outstanding capital stock of certain indirect subsidiaries of NORMA Group SE (“Norma Group”), a European company ( Societas Europaea ) incorporated under the laws of Germany, which comprise …Acquisition or disposition completed · Form 8-K
10. Nov 6, 2025On November 6, 2025, the Company issued a press release announcing the approval by the Board of Directors (the "Board") of the Company of the declaration of a cash dividend of $0.18 per share, payable on December 15, 2025, to stockholders of record at the close of business on December 1, 2025.Earnings release · Form 8-K

Quoted from SEC EDGAR filings. A current report is filed within four business days of the event it describes.