AWI: Armstrong World Inds Inc New insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Institutional ownership (Q2 2026)
479 institutions reported holding $6.74B of Armstrong World Inds Inc New on Form 13F (475 the quarter before). 58 opened a new position and 56 sold out. Shares held by institutions: same.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 5,156,705 | $827.24M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,219,754 | $356.09M |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,923,943 | $308.64M |
| LONDON CO OF VIRGINIA | 1,644,407 | $263.78M |
| STATE STREET CORP | 1,438,537 | $230.75M |
| BANK OF MONTREAL /CAN/ | 1,104,610 | $177.20M |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1,101,986 | $176.78M |
| GEODE CAPITAL MANAGEMENT, LLC | 1,043,316 | $167.40M |
| CITADEL ADVISORS LLC | 1,030,421 | $165.30M |
| Egerton Capital (UK) LLP | 925,394 | $148.45M |
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