Armstrong World Industries INC Schedule 13G passive stakes
Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.
NYSE
Vanguard Capital Management has reported beneficial ownership of 5.24% of Armstrong World Industries' common stock as of March 31, 2026.
NYSE
Vanguard Portfolio Management has reported beneficial ownership of 5.23% of Armstrong World Industries' common stock as of March 31, 2026.
NYSE
The Vanguard Group has filed an amended Schedule 13G, indicating it no longer holds beneficial ownership in Armstrong World Industries Inc. following an internal realignment.
NYSE
SCHEDULE 13G/A: London Co. Discloses 4.94% Stake in Armstrong World
The London Company, an investment adviser, reported a 4.94% beneficial ownership stake in Armstrong World Industries Inc. common stock as of September 30, 2025.
NYSE
BlackRock, Inc. has filed an amended Schedule 13G, reporting beneficial ownership of 11.5% of Armstrong World Industries Inc.'s common stock.