{
 "company": "Comcast",
 "ticker": "CMCSA",
 "page": "https://www.moatshark.com/s/cmcsa",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "First Pacific Advisors (FPA)",
   "moatshark_slug": "first-pacific-advisors-fpa",
   "period": "2026-06-30",
   "portfolio_pct": 2.63,
   "value_usd": 213012101,
   "change": "ADD",
   "share_change_pct": 1,
   "quarters_held": 35
  },
  {
   "manager": "Matrix Asset Advisors",
   "moatshark_slug": "matrix-asset-advisors",
   "period": "2026-09-30",
   "portfolio_pct": 1.82,
   "value_usd": 22136311,
   "change": "ADD",
   "share_change_pct": 2.6,
   "quarters_held": 27
  },
  {
   "manager": "First Eagle Investment Management",
   "moatshark_slug": "first-eagle-investment-management",
   "period": "2026-06-30",
   "portfolio_pct": 1.54,
   "value_usd": 937146775,
   "change": "ADD",
   "share_change_pct": 1,
   "quarters_held": 53
  },
  {
   "manager": "Dodge & Cox",
   "moatshark_slug": "dodge-cox",
   "period": "2026-06-30",
   "portfolio_pct": 1.49,
   "value_usd": 2845421719,
   "change": "ADD",
   "share_change_pct": 2.5,
   "quarters_held": 53
  },
  {
   "manager": "Greenlight Capital",
   "moatshark_slug": "greenlight-capital",
   "period": "2026-06-30",
   "portfolio_pct": 0.85,
   "value_usd": 33038899,
   "change": "NEW",
   "share_change_pct": null,
   "quarters_held": 1
  },
  {
   "manager": "Gardner Russo & Quinn",
   "moatshark_slug": "gardner-russo-quinn",
   "period": "2026-06-30",
   "portfolio_pct": 0.6,
   "value_usd": 53854350,
   "change": "REDUCE",
   "share_change_pct": -2.6,
   "quarters_held": 34
  },
  {
   "manager": "Yacktman Asset Management",
   "moatshark_slug": "yacktman-asset-management",
   "period": "2026-06-30",
   "portfolio_pct": 0.36,
   "value_usd": 28735775,
   "change": "ADD",
   "share_change_pct": 0.3,
   "quarters_held": 43
  },
  {
   "manager": "Harris Associates (Oakmark)",
   "moatshark_slug": "harris-associates-oakmark",
   "period": "2026-06-30",
   "portfolio_pct": 0.23,
   "value_usd": 176108542,
   "change": "REDUCE",
   "share_change_pct": -72.9,
   "quarters_held": 53
  },
  {
   "manager": "Markel Group",
   "moatshark_slug": "markel-group",
   "period": "2026-06-30",
   "portfolio_pct": 0.15,
   "value_usd": 19690917,
   "change": "REDUCE",
   "share_change_pct": -16.6,
   "quarters_held": 23
  },
  {
   "manager": "Weitz Investment Management",
   "moatshark_slug": "weitz-investment-management",
   "period": "2026-06-30",
   "portfolio_pct": 0.08,
   "value_usd": 1153850,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 43
  },
  {
   "manager": "Tweedy, Browne",
   "moatshark_slug": "tweedy-browne",
   "period": "2026-06-30",
   "portfolio_pct": 0.06,
   "value_usd": 769152,
   "change": "REDUCE",
   "share_change_pct": -0.5,
   "quarters_held": 43
  },
  {
   "manager": "Brave Warrior Advisors",
   "moatshark_slug": "brave-warrior-advisors",
   "period": "2026-06-30",
   "portfolio_pct": 0.02,
   "value_usd": 763358,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 18
  },
  {
   "manager": "Kahn Brothers",
   "moatshark_slug": "kahn-brothers",
   "period": "2026-06-30",
   "portfolio_pct": 0,
   "value_usd": 0,
   "change": "EXIT",
   "share_change_pct": null,
   "quarters_held": 4
  }
 ]
}