Armstrong World Industries
Makes ceilings, specialty walls, and exterior metal solutions for architectural applications.
$175.09
After-hours close−0.03 (−0.02%)
At close$175.12(−0.24%)
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Breakdown13F · Form 4
Institutions 124.61%Insiders 1.56%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 42.26M · Float 41.61M · 98.5% free float
Institutions13F, as of Jun 30, 2026
482 holders · 52.66M shares · 63 new positions · 235 increased · 191 reduced · 61 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 5.16M | 12.20% | −49.6K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 2.22M | 5.25% | −13.6K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 1.92M | 4.55% | +5.7K | Aug 13, 2026 |
| London Co of Virginia | 1.64M | 3.89% | −79.0K | Aug 14, 2026 |
| State Street Corp | 1.44M | 3.40% | +23.6K | Aug 7, 2026 |
| Bank of Montreal /Can/ | 1.10M | 2.61% | −120.7K | Aug 12, 2026 |
| Fuller & Thaler Asset Management, Inc. | 1.10M | 2.61% | +60.6K | Aug 12, 2026 |
| Geode Capital Management, LLC | 1.04M | 2.47% | +35.0K | Aug 12, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 11.50% | 5.01M | 13G | Jul 18, 2025 ↗ |
| Vanguard Capital Management | 5.24% | 2.25M | 13G | Apr 29, 2026 ↗ |
| Vanguard Portfolio Management | 5.23% | 2.24M | 13G | Apr 28, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Victor Grizzle | director, officer: Executive Chair | 505.8K | 1.20% | Apr 29, 2026 |
| Mark A. Hershey | officer: President & CEO | 64.8K | 0.15% | Apr 10, 2026 |
| Roy W. Templin | director | 20.7K | 0.05% | Jun 15, 2026 |
| Christopher P. Calzaretta | officer: SVP & CFO | 11.2K | 0.03% | Apr 10, 2026 |
| Wayne Shurts | director | 9.8K | 0.02% | Jun 15, 2026 |
| Barbara Loughran | director | 9.7K | 0.02% | Jun 15, 2026 |
| Austin So | officer: SVP, GC, Gov't. Rel., & CSO | 9.0K | 0.02% | Mar 2, 2026 |
| Jill A. Crager | officer: SVP Sales & Digital Mktg | 6.7K | 0.02% | Apr 10, 2026 |
| Richard D. Holder | director | 6.2K | 0.01% | Jun 15, 2026 |
| William H. Osborne | director | 4.8K | 0.01% | Jun 15, 2026 |
3 ten-percent owners hold 18.59M shares by Form 4, outside the officers-and-directors figure above · 34 people have not refiled in the last 18 months (1.02M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Feb 27, 2026 | Roy W. Templindirector | Purchase | 575 | $173.91 | 19,451 |
CongressHouse and Senate disclosures
Not reported.