{
 "company": "Canadian National Railway",
 "ticker": "CNI",
 "page": "https://www.moatshark.com/s/cni",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "Gates Foundation Trust",
   "moatshark_slug": "gates-foundation-trust",
   "period": "2026-06-30",
   "portfolio_pct": 17.95,
   "value_usd": 6179825963,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 53
  },
  {
   "manager": "Troy Asset Management",
   "moatshark_slug": "troy-asset-management",
   "period": "2026-06-30",
   "portfolio_pct": 8.99,
   "value_usd": 322255093,
   "change": "REDUCE",
   "share_change_pct": -2.5,
   "quarters_held": 11
  },
  {
   "manager": "TCI Fund Management",
   "moatshark_slug": "tci-fund-management",
   "period": "2026-06-30",
   "portfolio_pct": 2.13,
   "value_usd": 1124534915,
   "change": "REDUCE",
   "share_change_pct": -4.2,
   "quarters_held": 32
  },
  {
   "manager": "Fairfax Financial Holdings",
   "moatshark_slug": "fairfax-financial-holdings",
   "period": "2026-06-30",
   "portfolio_pct": 0.11,
   "value_usd": 2952402,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 3
  },
  {
   "manager": "Markel Group",
   "moatshark_slug": "markel-group",
   "period": "2026-06-30",
   "portfolio_pct": 0.05,
   "value_usd": 6379340,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 4
  },
  {
   "manager": "First Eagle Investment Management",
   "moatshark_slug": "first-eagle-investment-management",
   "period": "2026-06-30",
   "portfolio_pct": 0,
   "value_usd": 279327,
   "change": "REDUCE",
   "share_change_pct": -2.4,
   "quarters_held": 19
  }
 ]
}