---
schema_version: "secwatch.filing_event.v1"
accession: "0001604028-26-000002"
form_type: "8-K"
ticker: "WMS"
cik: "0001604028"
company_name: "ADVANCED DRAINAGE SYSTEMS, INC."
filed_at: "2026-02-02T23:59:59+00:00"
generated_at: "2026-05-16T05:36:41.291599+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Advanced Drainage Systems completes $1.0B acquisition of Norma Group's water management business NDS

## Summary
- All-cash deal closed Feb 2, 2026; purchase price ~$1.0B plus adjustments.
- NDS adds residential water management, access box, and irrigation solutions to ADS portfolio.
- Transaction strengthens ADS' Allied Products segment, distribution network, and customer reach.
- CEO Scott Barbour cites disciplined integration and long-term value creation in growing end markets.

## SEC filing metadata
- accession: 0001604028-26-000002
- form_type: 8-K
- ticker: WMS
- cik: 0001604028
- company_name: ADVANCED DRAINAGE SYSTEMS, INC.
- filed_at: 2026-02-02T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1604028/000160402826000002/0001604028-26-000002-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1604028/000160402826000002/wms-20260202.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001604028-26-000002
- JSON: https://secwatch.observer/filing/0001604028-26-000002.json
- Plain text: https://secwatch.observer/filing/0001604028-26-000002.txt

## Source-grounded claims
- claim_id: b274be280a3dae43e7ce07250984535cfe68c3a0
  claim: ADVANCED DRAINAGE SYSTEMS, INC. completed an acquisition involving NORMA Group SE for all cash transaction for consideration of approximately $1.0 billion, subject to certain purchase price adjustments (closed 2026-02-02).
  evidence_excerpt: On 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 substantially all of Norma Group’s water management business known as National Diversified Sales (“NDS”), subject to the terms and conditions set forth in the Master Share Purchase Agreement dated September 23, 2025 (the “Purchase Agreement”) between the Company and Norma Group. The acquisition was an all cash transaction for consideration of approximately $1.0 billion, subject to certain purchase price adjustments.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1604028/000160402826000002/0001604028-26-000002-index.htm

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