---
schema_version: "secwatch.filing_event.v1"
accession: "0001604028-26-000014"
form_type: "8-K"
ticker: "WMS"
cik: "0001604028"
company_name: "ADVANCED DRAINAGE SYSTEMS, INC."
filed_at: "2026-05-21T11:06:01+00:00"
generated_at: "2026-05-21T11:11:42.134361+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ADS Q4 net sales up 9.9% to $676.8M; adjusted EPS $1.07 (+3.9%); dividend raised 11% to $0.20/quarter

## Summary
- Q4 GAAP EPS from continuing ops $0.43 (down 56.6% YoY), adjusted EPS $1.07 (up 3.9%); adjusted EBITDA $188M (+6.4%).
- Full-year FY2026 net sales up 5%; adjusted EBITDA margin 31.6%; cash from ops $819.1M; returned $155.4M to shareholders.
- Closed NDS acquisition in Q4 contributed $48.8M of stormwater revenue; organic stormwater sales up 2%.
- Board approved 11% dividend increase to $0.80 annual; $0.20 quarterly payable June 15, 2026 to holders of record June 1.
- Management cautious on FY2027 due to geopolitical uncertainty, elevated interest rates; pricing actions to offset inflation.

## SEC filing metadata
- accession: 0001604028-26-000014
- form_type: 8-K
- ticker: WMS
- cik: 0001604028
- company_name: ADVANCED DRAINAGE SYSTEMS, INC.
- filed_at: 2026-05-21T11:06:01+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1604028/000160402826000014/0001604028-26-000014-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1604028/000160402826000014/wms-20260521.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001604028-26-000014
- JSON: https://secwatch.observer/filing/0001604028-26-000014.json
- Plain text: https://secwatch.observer/filing/0001604028-26-000014.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.