Institutional Holders (2026 Q1)
614 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in AOS. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Regents Gate Capital LLP | 3.71% | 263,951 | $17.4M |
| 2 | Impax Asset Management Group plc | 1.97% | 4,278,219 | $282.1M |
| 3 | Collaborative Fund Advisors, LLC | 1.24% | 30,438 | $2.0M |
| 4 | SCHWARTZ INVESTMENT COUNSEL INC | 1.21% | 517,733 | $34.1M |
| 5 | Hunter Perkins Capital Management, LLC | 1.19% | 77,043 | $5K |
| 6 | Illumine Investment Management, LLC | 1.19% | 23,437 | $1.5M |
| 7 | BERKSHIRE ASSET MANAGEMENT LLC/PA | 1.12% | 397,432 | $26.2M |
| 8 | Sarasin & Partners LLP | 0.97% | 1,200,917 | $79.2M |
| 9 | Madison Asset Management, LLC | 0.93% | 1,142,604 | $75.3M |
| 10 | Lionshead Wealth Management, LLC | 0.92% | 18,976 | $1.3M |
| 11 | Atwater Malick LLC | 0.88% | 49,255 | $3.2M |
| 12 | Thrive Capital Management, LLC | 0.84% | 57,945 | $3.8M |
| 13 | Eukles Asset Management | 0.74% | 25,153 | $1.7M |
| 14 | Vest Financial, LLC | 0.65% | 815,872 | $53.8M |
| 15 | Arbejdsmarkedets Tillaegspension | 0.63% | 387,114 | $25.5M |
| 16 | Lafayette Investments, Inc. | 0.62% | 46,161 | $3.0M |
| 17 | Fairtree Asset Management (Pty) Ltd | 0.59% | 19,526 | $1.3M |
| 18 | Boston Trust Walden Corp | 0.57% | 1,050,930 | $69.3M |
| 19 | MARIETTA INVESTMENT PARTNERS LLC | 0.56% | 42,392 | $2.8M |
| 20 | Foyston, Gordon & Payne Inc | 0.54% | 35,276 | $2.3M |
| 21 | HARVEY INVESTMENT CO LLC | 0.53% | 73,650 | $5K |
| 22 | MOKAN Wealth Management Inc. | 0.53% | 18,258 | $1.2M |
| 23 | NICHOLAS COMPANY, INC. | 0.50% | 385,643 | $25.4M |
| 24 | WELCH & FORBES LLC | 0.49% | 579,780 | $38.2M |
| 25 | THOMPSON INVESTMENT MANAGEMENT, INC. | 0.48% | 56,211 | $3.7M |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|