Armstrong World Industries designs and manufactures ceiling and wall systems, including acoustic tiles and suspension grids, for commercial and residential buildings.
| Filer | 13FScore | This quarter | Shares | Value | % of their book |
|---|---|---|---|---|---|
| Ancora | 42 | Added +17% | 1,451 | $239,125 | 0.0% |
| Bridgewater | 55 | Added +74% | 30,757 | $5,068,754 | 0.0% |
| Trade date | Who | Type | Amount | |
|---|---|---|---|---|
| 2026-07-01 | Trump, Donald J President | SELL | $15,001 - $50,000 | PTR |
| 2026-07-01 | Trump, Donald J President | SELL | $15,001 - $50,000 | PTR |
| 2026-05-14 | Trump, Donald J President | SELL | $1,004 - $15,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $15,001 - $50,000 | PTR |
Every tracked holder of this name, sorted new → added → flat → trimmed. Shares = reported 13F share count; Value as reported (a few managers file values in $thousands). Generated 2026-07-20.