---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-049399"
form_type: "8-K"
ticker: "AWI"
cik: "0000007431"
company_name: "ARMSTRONG WORLD INDUSTRIES INC"
filed_at: "2025-04-02T23:59:59+00:00"
generated_at: "2026-05-24T00:09:24.761727+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Armstrong appoints Mark Hershey as SVP & COO effective April 1, 2025

## Summary
- Mark A. Hershey promoted to Senior Vice President & Chief Operating Officer effective April 1, 2025.
- Previously served as SVP, Americas since January 2022; prior roles include General Counsel and Secretary.
- Hershey, age 55, has been with Armstrong since July 2011 in various leadership positions.

## SEC filing metadata
- accession: 0000950170-25-049399
- form_type: 8-K
- ticker: AWI
- cik: 0000007431
- company_name: ARMSTRONG WORLD INDUSTRIES INC
- filed_at: 2025-04-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/7431/000095017025049399/0000950170-25-049399-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/7431/000095017025049399/awi-20250331.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-049399
- JSON: https://secwatch.observer/filing/0000950170-25-049399.json
- Plain text: https://secwatch.observer/filing/0000950170-25-049399.txt

## Key facts
- Executive change
  Mark A. Hershey was appointed as Senior Vice President & Chief Operating Officer at ARMSTRONG WORLD INDUSTRIES INC.
  - Action: appointed
  - Role: Senior Vice President & Chief Operating Officer
  source text: On March 31, 2025, the Board of Directors of Armstrong World Industries, Inc. (the “Company”) appointed Mark A. Hershey as Senior Vice President & Chief Operating Officer, effective April 1, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/7431/000095017025049399/0000950170-25-049399-index.htm

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