{
 "company": "Norfolk Southern",
 "ticker": "NSC",
 "page": "https://www.moatshark.com/s/nsc",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "Markel Group",
   "moatshark_slug": "markel-group",
   "period": "2026-06-30",
   "portfolio_pct": 0.68,
   "value_usd": 88871675,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 53
  },
  {
   "manager": "Dodge & Cox",
   "moatshark_slug": "dodge-cox",
   "period": "2026-06-30",
   "portfolio_pct": 0.41,
   "value_usd": 789031988,
   "change": "REDUCE",
   "share_change_pct": -59.9,
   "quarters_held": 53
  },
  {
   "manager": "Horizon Kinetics",
   "moatshark_slug": "horizon-kinetics",
   "period": "2026-06-30",
   "portfolio_pct": 0.01,
   "value_usd": 969881,
   "change": "ADD",
   "share_change_pct": 1.6,
   "quarters_held": 30
  },
  {
   "manager": "Mairs & Power",
   "moatshark_slug": "mairs-power",
   "period": "2026-06-30",
   "portfolio_pct": 0.01,
   "value_usd": 814788,
   "change": "REDUCE",
   "share_change_pct": -4.6,
   "quarters_held": 53
  }
 ]
}