Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AWI held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.2M | $858.0M | -1.8% | 12.199% | 0.02% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.2M | $368.1M | — | 5.233% | 0.02% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $316.1M | — | 4.494% | 0.01% |
| 4 | LONDON CO OF VIRGINIA | 1.7M | $284.0M | -7.7% | 4.038% | 1.75% |
| 5 | STATE STREET CORP | 1.4M | $233.2M | +3.0% | 3.315% | 0.01% |
| 6 | BANK OF MONTREAL /CAN/ | 1.2M | $201.9M | -4.2% | 2.871% | 0.08% |
| 7 | AQR CAPITAL MANAGEMENT LLC | 1.1M | $179.9M | +16.5% | 2.623% | 0.08% |
| 8 | FULLER & THALER ASSET MANAGEMENT, INC. | 1.0M | $171.6M | +3.6% | 2.440% | 0.58% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.0M | $166.2M | -0.7% | 2.363% | 0.01% |
| 10 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 984K | $162.2M | -18.3% | 2.306% | 0.48% |
| 11 | Neuberger Berman Group LLC | 916K | $151.0M | -2.8% | 2.146% | 0.12% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 843K | $138.9M | -1.8% | 1.975% | 0.03% |
| 13 | CITADEL ADVISORS LLC | 804K | $132.5M | +45.4% | 1.884% | 0.06% |
| 14 | TWO SIGMA INVESTMENTS, LP | 784K | $129.2M | +229.4% | 1.836% | 0.10% |
| 15 | Capital International Investors | 776K | $127.9M | -66.6% | 1.818% | 0.03% |
| 16 | YACKTMAN ASSET MANAGEMENT LP | 742K | $122.3M | +0.0% | 1.738% | 1.63% |
| 17 | Alyeska Investment Group, L.P. | 741K | $122.1M | +38.9% | 1.736% | 0.35% |
| 18 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 575K | $94.8M | +99.7% | 1.347% | 0.15% |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 535K | $88.1M | +2.3% | 1.253% | 0.01% |
| 20 | Gates Capital Management, Inc. | 498K | $82.1M | +16.5% | 1.167% | 2.83% |
| 21 | FMR LLC | 461K | $76.0M | +69.7% | 1.080% | 0.00% |
| 22 | MORGAN STANLEY | 459K | $75.7M | -7.0% | 1.076% | 0.00% |
| 23 | BANK OF AMERICA CORP /DE/ | 458K | $75.4M | +5.2% | 1.072% | 0.01% |
| 24 | Egerton Capital (UK) LLP | 448K | $73.8M | — | 1.050% | 0.82% |
| 25 | Allianz Asset Management GmbH | 433K | $71.4M | +202.6% | 1.015% | 0.08% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AWI — a direct measure of their conviction.
Filings activity in AWI during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 459 | 9.5% | 101.05% | 20.55 pp | $6.65B | 17% |
| Q4 2025 | 507 | +3.5% | 121.60% | 1.34 pp | $8.00B | 1.1% |
| Q3 2025 | 490 | +19% | 122.94% | +21.34 pp | $8.09B | +21% |
| Q2 2025 | 412 | +5.4% | 101.60% | +15.29 pp | $6.69B | +18% |
| Q1 2025 | 391 | +8.3% | 86.31% | 3.20 pp | $5.68B | 3.6% |
| Q4 2024 | 361 | +7.1% | 89.51% | +9.52 pp | $5.89B | +12% |
| Q3 2024 | 337 | +5.6% | 79.99% | +11.60 pp | $5.26B | +17% |
| Q2 2024 | 319 | — | 68.39% | — | $4.50B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AWI stock.
Based on Q1 2026 13F filings, institutional ownership of Armstrong World Industries, Inc. stands at 101.0%, held across 459 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AWI, with approximately 5,206,270 shares worth $0.86B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of AWI, including CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for AWI is 33 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
65 institutions opened new positions in AWI during Q1 2026, while 113 fully exited. 93 added to existing positions and 297 trimmed.
AWI institutional ownership fell by 20.55 percentage points quarter-over-quarter, with a net change of -48 holders.
The top 10 institutions account for 44.2% of all reported 13F value in AWI, and the top 25 account for 67.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Armstrong World Industries, Inc. (AWI) Institutional Ownership