ARMSTRONG WORLD INDUSTRIES INC of LANCASTER, PA filed a DEFA14A with the SEC on 2026-04-30. Industry: Plastics Products, NEC.
| Seq | Type | Description |
|---|---|---|
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
Showing 12 of 46 filings.
| Filed | Form |
|---|---|
| 2026-04-30 | DEFA14A |
| 2026-04-30 | DEF 14A |
| 2025-04-28 | DEFA14A |
| 2025-04-28 | DEF 14A |
| 2024-04-29 | DEFA14A |
| 2024-04-29 | DEF 14A |
| 2023-05-01 | DEFA14A |
| 2023-05-01 | DEF 14A |
| 2022-04-27 | DEFA14A |
| 2022-04-27 | DEF 14A |
| 2021-04-28 | DEFA14A |
| 2021-04-28 | DEF 14A |