---
schema_version: "secwatch.filing_event.v1"
accession: "0001604028-23-000029"
form_type: "8-K"
ticker: "WMS"
cik: "0001604028"
company_name: "ADVANCED DRAINAGE SYSTEMS, INC."
filed_at: "2023-07-21T23:59:59+00:00"
generated_at: "2026-06-13T04:57:29.973215+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Advanced Drainage Systems stockholders elect 12 directors, ratify auditor, approve executive pay

## Summary
- All 12 director nominees elected; D. Scott Barbour received highest 'for' votes (67.66M).
- Ratification of Deloitte & Touche as independent auditor for FY2024 approved: 63.83M for, 6.53M against.
- Advisory vote on executive compensation approved: 60.74M for, 6.57M against; 2.40M broker non-votes.
- Meeting held July 20, 2023; proposals described in June 7, 2023 proxy statement.

## SEC filing metadata
- accession: 0001604028-23-000029
- form_type: 8-K
- ticker: WMS
- cik: 0001604028
- company_name: ADVANCED DRAINAGE SYSTEMS, INC.
- filed_at: 2023-07-21T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1604028/000160402823000029/0001604028-23-000029-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1604028/000160402823000029/wms-20230720.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001604028-23-000029
- JSON: https://secwatch.observer/filing/0001604028-23-000029.json
- Plain text: https://secwatch.observer/filing/0001604028-23-000029.txt

## Key facts
- Shareholder Votes
  ADVANCED DRAINAGE SYSTEMS, INC. shareholders approved Ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for fiscal year 2024 at the 2023-07-20 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2023-07-20
  source text: Proposal Two : Ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for fiscal year 2024. The Company’s stockholders ratified the selection of Deloitte & Touche LLP, and the voting results are set forth below: For Against Abstentions Broker Non-Votes 63,828,969 6,526,464 275,809 —
  evidence_url: https://www.sec.gov/Archives/edgar/data/1604028/000160402823000029/0001604028-23-000029-index.htm
- Shareholder Votes
  ADVANCED DRAINAGE SYSTEMS, INC. shareholders approved Election of twelve directors to serve for a one-year term until the 2024 annual meeting of stockholders at the 2023-07-20 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2023-07-20
  source text: Proposal One : Election of twelve directors, including D. Scott Barbour, Anesa T. Chaibi, Michael B. Coleman, Robert M. Eversole, Alexander R. Fischer, Tanya D. Fratto, Kelly S. Gast, M.A. (Mark) Haney, Ross M. Jones, Manuel Perez de la Mesa, Carl A. Nelson, Jr., and Anil Seetharam, to serve for a one-year term until the 2024 annual meeting of stockholders, or until his or her successor has been elected and qualified. The Company’s stockholders elected each of the eight nominees for director, and the voting results are set forth below:
  evidence_url: https://www.sec.gov/Archives/edgar/data/1604028/000160402823000029/0001604028-23-000029-index.htm
- Shareholder Votes
  ADVANCED DRAINAGE SYSTEMS, INC. shareholders approved Advisory vote to approve the compensation of the Company’s executive officers as disclosed in the Company’s Proxy Statement at the 2023-07-20 meeting.
  - Proposal: say on pay
  - Outcome: passed
  - Meeting: 2023-07-20
  source text: Proposal Three : Advisory vote to approve the compensation of the Company’s executive officers as disclosed in the Company’s Proxy Statement. The Company’s stockholders gave advisory approval of the compensation of the Company’s executive officers as disclosed in the Proxy Statement, and the voting results are set forth below: For Against Abstentions Broker Non-Votes 60,739,902 6,572,275 923,416 2,395,649
  evidence_url: https://www.sec.gov/Archives/edgar/data/1604028/000160402823000029/0001604028-23-000029-index.htm

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