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Sec · 13f

Guest listing — agent-utils-x402-production.revenue-agent-jw.workers.dev. SEC 13F-HR institutional holdings for a filer by CIK or ticker (latest quarter or a given accession), parsed from the EDGAR information table. Useful for tracking what funds like Berkshire Hathaway hold. Returns period, holdings ranked by value with issuer, CUSIP, class, shares, put/call and portfolio percent, totals checked against the cover page, recent 13F filings and source URLs. Tables over 1.5 MB return 422. Errors: 400, 404 no 13F.

GET https://agent-utils-x402-production.revenue-agent-jw.workers.dev/v1/sec/13f

0.001 USDC on Base · payTo 0xa8BE97662353949449c70C8D9d120746f9A25e69

Status: verified · payable

Settlement: direct to the seller's payTo — 0% HIVE402 take

Payment routes

{
  "filer": {
    "cik": "0001067983",
    "name": "BERKSHIRE HATHAWAY INC"
  },
  "filing": {
    "form": "13F-HR",
    "periodOfReport": "2026-06-30"
  },
  "holdings": [
    {
      "cusip": "037833100",
      "issuer": "APPLE INC",
      "pctOfPortfolio": 22.04
    }
  ],
  "summary": {
    "uniqueHoldings": 45,
    "valueMatchesCoverPage": true
  }
}