Institutional Holders (2026 Q1)
1K + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in AON. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Cryder Capital Partners LLP | 6.78% | 321,689 | $103.8M |
| 2 | BloombergSen Inc. | 6.24% | 254,006 | $82.0M |
| 3 | DUDLEY & SHANLEY, INC. | 4.69% | 88,782 | $28.7M |
| 4 | GERBER, LLC | 3.52% | 19,553 | $6.3M |
| 5 | DIAMOND HILL CAPITAL MANAGEMENT INC | 3.00% | 1,487,887 | $480.3M |
| 6 | JLB & ASSOCIATES INC | 2.87% | 61,966 | $20.0M |
| 7 | MANAGED ASSET PORTFOLIOS, LLC | 2.77% | 71,613 | $23.1M |
| 8 | C WorldWide Group Holding A/S | 2.77% | 399,312 | $129K |
| 9 | Burkett Asset Management Ltd | 2.75% | 8,639 | $2.8M |
| 10 | Mawer Investment Management Ltd. | 2.67% | 1,277,088 | $412.2M |
| 11 | Ninety One North America, Inc. | 2.54% | 175,559 | $56.7M |
| 12 | SCHARF INVESTMENTS, LLC | 2.54% | 254,941 | $82.3M |
| 13 | Wealthspire Advisors, LLC | 2.49% | 984,075 | $317.6M |
| 14 | CANTILLON CAPITAL MANAGEMENT LLC | 2.35% | 1,095,574 | $353.6M |
| 15 | CENTRAL SECURITIES CORP | 2.13% | 80,000 | $25.8M |
| 16 | ABNER HERRMAN & BROCK LLC | 1.91% | 53,632 | $17K |
| 17 | Kampmann Melissa S. | 1.91% | 7,355 | $2.4M |
| 18 | Nippon Life Global Investors Americas, Inc. | 1.90% | 130,660 | $42.2M |
| 19 | CARDEROCK CAPITAL MANAGEMENT INC | 1.72% | 21,586 | $7.0M |
| 20 | Suncoast Equity Management | 1.72% | 44,390 | $14.3M |
| 21 | Bell Asset Management Ltd | 1.69% | 17,801 | $5.8M |
| 22 | Dash Acquisitions Inc. | 1.61% | 23,289 | $7.7M |
| 23 | ZEVIN ASSET MANAGEMENT LLC | 1.53% | 34,261 | $11.1M |
| 24 | BUCKHEAD CAPITAL MANAGEMENT LLC | 1.47% | 12,083 | $3.9M |
| 25 | Obermeyer Wealth Partners | 1.46% | 98,353 | $31.7M |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|