{
 "company": "Blackrock",
 "ticker": "BLK",
 "page": "https://www.moatshark.com/s/blk",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "ValueAct",
   "moatshark_slug": "valueact",
   "period": "2026-06-30",
   "portfolio_pct": 9.93,
   "value_usd": 559339452,
   "change": "ADD",
   "share_change_pct": 6.5,
   "quarters_held": 3
  },
  {
   "manager": "Cantillon Capital Management",
   "moatshark_slug": "cantillon-capital-management",
   "period": "2026-06-30",
   "portfolio_pct": 3.02,
   "value_usd": 20070642,
   "change": "REDUCE",
   "share_change_pct": -95.4,
   "quarters_held": 7
  },
  {
   "manager": "Markel Group",
   "moatshark_slug": "markel-group",
   "period": "2026-06-30",
   "portfolio_pct": 1.61,
   "value_usd": 211735512,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 7
  },
  {
   "manager": "Harris Associates (Oakmark)",
   "moatshark_slug": "harris-associates-oakmark",
   "period": "2026-06-30",
   "portfolio_pct": 0.06,
   "value_usd": 42861537,
   "change": "REDUCE",
   "share_change_pct": -18.3,
   "quarters_held": 7
  },
  {
   "manager": "Dodge & Cox",
   "moatshark_slug": "dodge-cox",
   "period": "2026-06-30",
   "portfolio_pct": 0,
   "value_usd": 683669,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 7
  }
 ]
}