---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-455563"
form_type: "8-K"
ticker: "WMS"
cik: "0001604028"
company_name: "ADVANCED DRAINAGE SYSTEMS, INC."
filed_at: "2026-11-10T21:28:58+00:00"
generated_at: "2026-11-10T21:30:07.452419+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Advanced Drainage adds $300M to revolver, lifting total revolving commitments to $1.05B

## Summary
- Fifth Amendment to the July 31, 2019 credit agreement, dated November 6, 2026, increases aggregate revolving commitments by $300.0M to $1.05B via an incremental revolving facility.
- Amendment adds provisions permitting supply chain financing and receivables financing arrangements, with conforming changes to the Guarantee and Collateral Agreement.
- Guarantors Infiltrator Water Technologies, StormTech and Orenco reaffirm first-priority liens on substantially all assets; no default permitted before or after the increase.
- Each existing revolving lender receives a fee equal to 0.17% of revolving commitments held above its pre-amendment amount; Latham & Watkins advised the lenders.
- Bank of America agents the term facility and PNC Bank the revolving facility; closing conditions include a CFO solvency certificate and KYC documentation.

## SEC filing metadata
- accession: 0001193125-26-455563
- form_type: 8-K
- ticker: WMS
- cik: 0001604028
- company_name: ADVANCED DRAINAGE SYSTEMS, INC.
- filed_at: 2026-11-10T21:28:58+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1604028/000119312526455563/0001193125-26-455563-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1604028/000119312526455563/d387290d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-455563
- JSON: https://secwatch.observer/filing/0001193125-26-455563.json
- Plain text: https://secwatch.observer/filing/0001193125-26-455563.txt

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