---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-117909"
form_type: "8-K"
ticker: "AWI"
cik: "0000007431"
company_name: "ARMSTRONG WORLD INDUSTRIES INC"
filed_at: "2024-10-29T23:59:59+00:00"
generated_at: "2026-05-30T09:29:11.866366+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Armstrong Q3 net sales up 11% to record $387M; raises FY2024 guidance

## Summary
- Record Q3 net sales $386.6M (+11.3% YoY); diluted EPS $1.75 (+12.2%), adjusted diluted EPS $1.81 (+13.1%).
- Mineral Fiber net sales $258M (+3.3%), Adj. EBITDA margin 43.9%; Architectural Specialties $128.6M (+31.8%) driven by 3form and BOK acquisitions.
- Full-year 2024 guidance raised: Adj. EBITDA $482-490M (12-14% growth), Adj. diluted EPS $6.15-6.25 (16-17% growth).
- Year-to-date operating cash flow increased $4M; Q3 share repurchases $15M, $677M remaining under authorization.
- CEO cites favorable AUV, operational execution, and market stabilization as growth drivers despite muted conditions.

## SEC filing metadata
- accession: 0000950170-24-117909
- form_type: 8-K
- ticker: AWI
- cik: 0000007431
- company_name: ARMSTRONG WORLD INDUSTRIES INC
- filed_at: 2024-10-29T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/7431/000095017024117909/0000950170-24-117909-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/7431/000095017024117909/awi-20241029.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-117909
- JSON: https://secwatch.observer/filing/0000950170-24-117909.json
- Plain text: https://secwatch.observer/filing/0000950170-24-117909.txt

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