Companies / Armstrong World Industries Inc / Activity
Activity — Armstrong World Industries Inc
156 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | AllianceBernstein L.P. 13F manager | Trim | Common stock | $-110.14M | -576K -93.98% | 36,948 0.09% of shares | high |
| Q1 2026 as of | Norges Bank 13F manager | Exit | Common stock | $-107.72M | -564K -100.00% | 0 | high |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | Common stock | $89.96M | +546K +229.44% | 783,763 1.85% of shares | high |
| Q1 2026 as of | Adage Capital Partners Gp, L.L.C. 13F manager | Add | Common stock | $47.30M | +287K +99.65% | 575,000 1.36% of shares | medium |
| Q1 2026 as of | Millennium Management LLC 13F manager | Add | Common stock | $47.23M | +287K +464.08% | 348,379 0.82% of shares | medium |
| Q1 2026 as of | Balyasny Asset Management L.P. 13F manager | Exit | Common stock | $-39.99M | -209K -100.00% | 0 | medium |
| Q1 2026 as of | Kayne Anderson Rudnick Investment Management, LLC 13F manager | Trim | Common stock | $-36.37M | -221K -18.31% | 984,320 2.33% of shares | medium |
| Q2 2026 as of | SG Capital Management LLC 13F manager | New | Common stock | $26.61M | +166K | 165,862 0.39% of shares | medium |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common stock | $25.45M | +158K +16.48% | 1,119,557 2.65% of shares | medium |
| Q1 2026 as of | London Co of Virginia 13F manager | Trim | Common stock | $-23.55M | -143K -7.66% | 1,723,367 4.08% of shares | medium |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | Common stock | $-23.17M | -144K -2.72% | 5,156,705 12.20% of shares | medium |
| Q1 2026 as of | Discovery Capital Management, LLC 13F manager | Exit | Common stock | $-22.55M | -118K -100.00% | 0 | medium |
| Q1 2026 as of | Los Angeles Capital Management LLC 13F manager | Trim | Common stock | $-20.34M | -123K -68.54% | 56,642 0.13% of shares | medium |
| Q1 2026 as of | Zacks Investment Management 13F manager | Exit | Common stock | $-15.50M | -81K -100.00% | 0 | medium |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | New | Common stock | $13.10M | +80K | 79,517 0.19% of shares | medium |
| Q1 2026 as of | Gates Capital Management, L.P. 13F manager | Add | Common stock | $11.62M | +71K +16.48% | 498,268 1.18% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $10.52M | +66K +4.77% | 1,438,537 3.40% of shares | medium |
| Q1 2026 as of | Scopus Asset Management, L.P. 13F manager | Add | Common stock | $9.89M | +60K +100.00% | 120,000 0.28% of shares | medium |
| Q1 2026 as of | ING Groep NV 13F manager | Add | Common stock | $9.70M | +59K +140.87% | 100,683 0.24% of shares | medium |
| Q2 2026 as of | Victory Capital Management, Inc. 13F manager | Trim | Common stock | $-9.13M | -57K -74.45% | 19,542 0.05% of shares | medium |
| Q1 2026 as of | Hotchkis and Wiley Capital Management, LLC 13F manager | Exit | Common stock | $-6.50M | -34K -100.00% | 0 | medium |
| Q1 2026 as of | Fuller & Thaler Asset Management, Inc. 13F manager | Add | Common stock | $5.91M | +36K +3.57% | 1,041,354 2.46% of shares | medium |
| Q1 2026 as of | Schroder Investment Management Group 13F manager | Trim | Common stock | $-5.91M | -37K -14.16% | 224,263 0.53% of shares | medium |
| Q4 2025 as of | Norges Bank 13F manager | Trim | Common stock | $-5.56M | -29K -4.91% | 563,661 1.33% of shares | medium |
| Q4 2024 as of | Danske Bank A/S 13F manager | Trim | Common stock | $-5.35M | -38K -56.81% | 28,797 0.07% of shares | medium |
| Q1 2026 as of | Prudential Financial Inc 13F manager | Trim | Common stock | $-4.77M | -29K -33.67% | 57,026 0.13% of shares | low |
| Q1 2026 as of | CPPIB Crestone Peak Resources Canada Inc. 13F manager | Add | Common stock | $4.66M | +28K +1768.75% | 29,900 0.07% of shares | low |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Trim | Common stock | $-4.39M | -23K -5.01% | 435,142 1.03% of shares | low |
| Q2 2026 as of | Quadrature Capital Ltd 13F manager | New | Common stock | $4.34M | +27K | 27,032 0.06% of shares | low |
| Q1 2026 as of | First Trust Advisors LP 13F manager | Trim | Common stock | $-4.21M | -26K -24.10% | 80,481 0.19% of shares | low |
| Q1 2026 as of | Amundi 13F manager | Trim | Common stock | $-3.64M | -22K -11.99% | 162,038 0.38% of shares | low |
| Q1 2025 as of | Barclays PLC 13F manager | Add | Common stock | $3.32M | +24K +136.78% | 40,831 0.10% of shares | low |
| Q1 2026 as of | Natixis 13F manager | Exit | Common stock | $-3.26M | -17K -100.00% | 0 | low |
| Q4 2025 as of | Danske Bank A/S 13F manager | Add | Common stock | $3.09M | +16K +56.23% | 44,989 0.11% of shares | low |
| Q1 2026 as of | Public Sector Pension Investment Board 13F manager | Add | Common stock | $2.95M | +18K +9.86% | 199,777 0.47% of shares | low |
| Q1 2026 as of | Calamos Advisors LLC 13F manager | Exit | Common stock | $-2.87M | -15K -100.00% | 0 | low |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $-2.73M | -17K -16.96% | 81,208 0.19% of shares | low |
| Q2 2026 as of | Mml Investors Services, LLC 13F manager | Trim | Common stock | $-2.57M | -16K -49.60% | 16,308 0.04% of shares | low |
| Q1 2026 as of | Magnetar Financial LLC 13F manager | New | Common stock | $2.50M | +15K | 15,200 0.04% of shares | low |
| Q2 2026 as of | AlphaQuest LLC 13F manager | Exit | Common stock | $-2.45M | -13K -100.00% | 0 | low |
| Q1 2026 as of | Graham Capital Management, L.P. 13F manager | Add | Common stock | $2.36M | +14K +209.22% | 21,194 0.05% of shares | low |
| Q1 2026 as of | Lazard Asset Management LLC 13F manager | Add | Common stock | $2.27M | +14K +210.45% | 20,282 0.05% of shares | low |
| Q1 2026 as of | Bridgewater Associates, LP 13F manager | Add | Common stock | $2.16M | +13K +74.26% | 30,757 0.07% of shares | low |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Add | Common stock | $1.92M | +12K +3.10% | 387,256 0.92% of shares | low |
| Q1 2026 as of | California State Teachers Retirement System 13F manager | Add | Common stock | $1.72M | +10K +25.38% | 51,456 0.12% of shares | low |
| Q2 2026 as of | Deutsche Bank AG 13F manager | Trim | Common stock | $-1.60M | -10K -4.34% | 220,034 0.52% of shares | low |
| Q3 2024 as of | Danske Bank A/S 13F manager | Trim | Common stock | $-1.53M | -12K -14.86% | 66,679 0.16% of shares | low |
| Q1 2026 as of | Capital International Sarl 13F manager | Exit | Common stock | $-1.37M | -7K -100.00% | 0 | low |
| Q1 2026 as of | Cookson Peirce & Co Inc 13F manager | Exit | Common stock | $-1.20M | -6K -100.00% | 0 | low |
| Q3 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-1.17M | -6K -12.73% | 41,037 0.10% of shares | low |