Institutional Ownership
Armstrong World Inds Inc New
CUSIP 04247X102COMAWIQ1 2026
13D / 13G Filings
22
Schedule 13D/13G on record
Beneficial Filers
7
Distinct reporting persons
Largest Stake
15.2%
Max % of class reported
Institutional Holders
460
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
22 filings · latest Jul 18, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Jul 18, 2025 | Blackrock, Inc. | 13G/A | 11.5% | 5.01M | SEC |
| 2 | May 10, 2024 | Capital International Investors | 13G/A | 6.0% | 2.62M | SEC |
| 3 | Feb 9, 2024 | Capital International Investors | 13G/A | 12.6% | 5.55M | SEC |
| 4 | Jan 10, 2024 | Vanguard Group Inc | 13G/A | 10.8% | 4.76M | SEC |
| 5 | Jan 8, 2024 | Blackrock Inc. | 13G | 12.6% | 5.56M | SEC |
| 6 | Feb 14, 2023 | Price T Rowe Associates Inc /Md/ | 13G/A | 0.1% | 90.5K | SEC |
| 7 | Feb 13, 2023 | Capital International Investors | 13G/A | 12.2% | 5.58M | SEC |
| 8 | Feb 9, 2023 | Vanguard Group Inc | 13G/A | 9.2% | 4.20M | SEC |
| 9 | Feb 11, 2022 | Capital International Investors | 13G/A | 11.2% | 5.30M | SEC |
| 10 | Feb 10, 2022 | Lazard Asset Management LLC | 13G/A | 4.8% | 2.30M | SEC |
12 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Armstrong World Inds Inc New.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 5.21M | $857.99M |
| 2 | London Co Of Virginia | 1.72M | $284.01M |
| 3 | State Street Corp | 1.41M | $233.18M |
| 4 | Bank Of Montreal /Can/ | 1.23M | $201.93M |
| 5 | Aqr Capital Management LLC | 1.12M | $179.89M |
| 6 | Fuller & Thaler Asset Management, Inc. | 1.04M | $171.62M |
| 7 | Geode Capital Management, LLC | 1.01M | $166.21M |
| 8 | Kayne Anderson Rudnick Investment Management LLC | 984.3K | $162.22M |
| 9 | Neuberger Berman Group LLC | 916.0K | $150.96M |
| 10 | Dimensional Fund Advisors LP | 843.0K | $138.90M |