{"filing":{"accession_number":"0001604028-26-000014","cik":"0001604028","ticker":"WMS","company_name":"ADVANCED DRAINAGE SYSTEMS, INC.","form":"8-K","filing_date":"2026-05-21","report_date":null,"primary_document":"wms-20260521.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1604028/000160402826000014/wms-20260521.htm"},"events":[{"id":9550,"run_id":8380,"accession_number":"0001604028-26-000014","anchor_item_number":"2.02","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.95,"summary":"Advanced Drainage Systems disclosed unaudited financial results for the fourth quarter and fiscal year ended March 31, 2026 via press release (Exhibit 99.1) and announced a conference call with presentation slides (Exhibit 99.2) where management will discuss the results.","company_name":"ADVANCED DRAINAGE SYSTEMS, INC.","ticker":"WMS","filing_date":"2026-05-21","form":"8-K","submitted_at":null,"items":[{"id":1209,"accession_number":"0001604028-26-000014","item_number":"2.02","item_title":"Results of Operations and Financial Condition","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"The filing discloses unaudited financial results for the fourth quarter and fiscal year ended March 31, 2026 via a press release furnished as Exhibit 99.1. This is a classic earnings release disclosure under Item 2.02, reporting quarterly and annual results to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:03:46.690601+00:00","company_name":"","ticker":null,"filing_date":""},{"id":1210,"accession_number":"0001604028-26-000014","item_number":"7.01","item_title":"Regulation FD Disclosure","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"The disclosure announces a conference call and webcast where the CEO and CFO will discuss \"the Company's unaudited results for the fourth quarter and fiscal year ended March 31, 2026,\" with presentation slides furnished as Exhibit 99.2. This is a standard earnings announcement disclosure under Regulation FD, disclosing the timing and format of financial results presentation to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:03:46.690601+00:00","company_name":"","ticker":null,"filing_date":""}]},{"id":9551,"run_id":8380,"accession_number":"0001604028-26-000014","anchor_item_number":"8.01","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"summary":"The Board of Directors approved a cash dividend of $0.20 per share payable on June 15, 2026.","company_name":"ADVANCED DRAINAGE SYSTEMS, INC.","ticker":"WMS","filing_date":"2026-05-21","form":"8-K","submitted_at":null,"items":[{"id":1211,"accession_number":"0001604028-26-000014","item_number":"8.01","item_title":"Other Events","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"reasoning":"The disclosure announces Board approval of a cash dividend of $0.20 per share payable June 15, 2026. While dividend declarations are routine corporate actions, this is material to investors as it affects shareholder returns and cash flow. However, it does not fit neatly into the more specific event categories (not an earnings release, executive change, M\u0026A, impairment, or other defined event types), warranting classification as other_material.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:03:46.690601+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":1209,"accession_number":"0001604028-26-000014","item_number":"2.02","item_title":"Results of Operations and Financial Condition","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"The filing discloses unaudited financial results for the fourth quarter and fiscal year ended March 31, 2026 via a press release furnished as Exhibit 99.1. This is a classic earnings release disclosure under Item 2.02, reporting quarterly and annual results to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:03:46.690601+00:00","company_name":"ADVANCED DRAINAGE SYSTEMS, INC.","ticker":"WMS","filing_date":"2026-05-21"},{"id":1210,"accession_number":"0001604028-26-000014","item_number":"7.01","item_title":"Regulation FD Disclosure","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"The disclosure announces a conference call and webcast where the CEO and CFO will discuss \"the Company's unaudited results for the fourth quarter and fiscal year ended March 31, 2026,\" with presentation slides furnished as Exhibit 99.2. This is a standard earnings announcement disclosure under Regulation FD, disclosing the timing and format of financial results presentation to investors.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:03:46.690601+00:00","company_name":"ADVANCED DRAINAGE SYSTEMS, INC.","ticker":"WMS","filing_date":"2026-05-21"},{"id":1211,"accession_number":"0001604028-26-000014","item_number":"8.01","item_title":"Other Events","event_type":"other_material","event_domain":"catchall","is_material":true,"confidence":0.65,"reasoning":"The disclosure announces Board approval of a cash dividend of $0.20 per share payable June 15, 2026. While dividend declarations are routine corporate actions, this is material to investors as it affects shareholder returns and cash flow. However, it does not fit neatly into the more specific event categories (not an earnings release, executive change, M\u0026A, impairment, or other defined event types), warranting classification as other_material.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:03:46.690601+00:00","company_name":"ADVANCED DRAINAGE SYSTEMS, INC.","ticker":"WMS","filing_date":"2026-05-21"}]}