{
 "company": "Aon",
 "ticker": "AON",
 "page": "https://www.moatshark.com/s/aon",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "Weitz Investment Management",
   "moatshark_slug": "weitz-investment-management",
   "period": "2026-06-30",
   "portfolio_pct": 4.91,
   "value_usd": 70935223,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 25
  },
  {
   "manager": "Baupost Group",
   "moatshark_slug": "baupost-group",
   "period": "2026-06-30",
   "portfolio_pct": 4.21,
   "value_usd": 227871000,
   "change": "REDUCE",
   "share_change_pct": -10.7,
   "quarters_held": 2
  },
  {
   "manager": "First Pacific Advisors (FPA)",
   "moatshark_slug": "first-pacific-advisors-fpa",
   "period": "2026-06-30",
   "portfolio_pct": 2.79,
   "value_usd": 226002620,
   "change": "REDUCE",
   "share_change_pct": -3.1,
   "quarters_held": 25
  },
  {
   "manager": "Dodge & Cox",
   "moatshark_slug": "dodge-cox",
   "period": "2026-06-30",
   "portfolio_pct": 1.49,
   "value_usd": 2850259933,
   "change": "ADD",
   "share_change_pct": 5.9,
   "quarters_held": 4
  },
  {
   "manager": "Polen Capital Management",
   "moatshark_slug": "polen-capital-management",
   "period": "2026-06-30",
   "portfolio_pct": 0.47,
   "value_usd": 54408954,
   "change": "REDUCE",
   "share_change_pct": -87.9,
   "quarters_held": 24
  },
  {
   "manager": "Markel Group",
   "moatshark_slug": "markel-group",
   "period": "2026-06-30",
   "portfolio_pct": 0.34,
   "value_usd": 45043503,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 23
  },
  {
   "manager": "Jensen Investment Management",
   "moatshark_slug": "jensen-investment-management",
   "period": "2026-06-30",
   "portfolio_pct": 0.21,
   "value_usd": 8553953,
   "change": "ADD",
   "share_change_pct": 0.9,
   "quarters_held": 15
  },
  {
   "manager": "Yacktman Asset Management",
   "moatshark_slug": "yacktman-asset-management",
   "period": "2026-06-30",
   "portfolio_pct": 0.05,
   "value_usd": 4283776,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 10
  },
  {
   "manager": "Cantillon Capital Management",
   "moatshark_slug": "cantillon-capital-management",
   "period": "2026-06-30",
   "portfolio_pct": 0,
   "value_usd": 0,
   "change": "EXIT",
   "share_change_pct": null,
   "quarters_held": 24
  },
  {
   "manager": "Matrix Asset Advisors",
   "moatshark_slug": "matrix-asset-advisors",
   "period": "2026-09-30",
   "portfolio_pct": 0,
   "value_usd": 0,
   "change": "EXIT",
   "share_change_pct": null,
   "quarters_held": 7
  }
 ]
}