{
 "company": "Black Stone Minerals LP",
 "ticker": "BSM",
 "page": "https://www.moatshark.com/s/bsm",
 "note": "Source: SEC filings via moatshark. Values and changes are estimates; not investment advice.",
 "holders": [
  {
   "manager": "Tweedy, Browne",
   "moatshark_slug": "tweedy-browne",
   "period": "2026-06-30",
   "portfolio_pct": 0.09,
   "value_usd": 1166914,
   "change": "ADD",
   "share_change_pct": 8,
   "quarters_held": 5
  },
  {
   "manager": "Horizon Kinetics",
   "moatshark_slug": "horizon-kinetics",
   "period": "2026-06-30",
   "portfolio_pct": 0.02,
   "value_usd": 2112795,
   "change": "HOLD",
   "share_change_pct": 0,
   "quarters_held": 30
  },
  {
   "manager": "First Eagle Investment Management",
   "moatshark_slug": "first-eagle-investment-management",
   "period": "2026-06-30",
   "portfolio_pct": 0,
   "value_usd": 409111,
   "change": "REDUCE",
   "share_change_pct": -2.4,
   "quarters_held": 13
  }
 ]
}