# ARMSTRONG WORLD INDUSTRIES INC — DEFA14A

ARMSTRONG WORLD INDUSTRIES INC of LANCASTER, PA filed a DEFA14A with the SEC on 2024-04-29. Industry: Plastics Products, NEC.

## Filing

- Filed: 2024-04-29
- Form: DEFA14A
- Accession: 0001193125-24-119742
- Registrant: ARMSTRONG WORLD INDUSTRIES INC
- CIK: 0000007431
- Industry (SIC): Plastics Products, NEC (3089)
- State of incorporation: PA
- Location: LANCASTER, PA

## Documents (4)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
| 4 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (46)

_Showing 12 of 46 filings._

| Filed | Form |
| --- | --- |
| [2026-04-30](https://search.stillhousedata.com/proxy/0001193125-26-193763) | DEFA14A |
| [2026-04-30](https://search.stillhousedata.com/proxy/0001193125-26-193741) | DEF 14A |
| [2025-04-28](https://search.stillhousedata.com/proxy/0001193125-25-100552) | DEFA14A |
| [2025-04-28](https://search.stillhousedata.com/proxy/0001193125-25-100540) | DEF 14A |
| 2024-04-29 | DEFA14A |
| [2024-04-29](https://search.stillhousedata.com/proxy/0001193125-24-119727) | DEF 14A |
| [2023-05-01](https://search.stillhousedata.com/proxy/0001193125-23-130386) | DEFA14A |
| [2023-05-01](https://search.stillhousedata.com/proxy/0001193125-23-130357) | DEF 14A |
| [2022-04-27](https://search.stillhousedata.com/proxy/0001193125-22-123780) | DEFA14A |
| [2022-04-27](https://search.stillhousedata.com/proxy/0001193125-22-123766) | DEF 14A |
| [2021-04-28](https://search.stillhousedata.com/proxy/0001193125-21-134725) | DEFA14A |
| [2021-04-28](https://search.stillhousedata.com/proxy/0001193125-21-134720) | DEF 14A |

## More

- [CIK 7431 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=7431&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001193125-24-119742.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.