EDGAR 13F-HR holdings (institutional positions)

Top holdings from an institutional investment manager's most recent 13F-HR filing (managers >$100M AUM file quarterly). Parses the standard SEC informationtable.xml attached to the filing - returns issuer, CUSIP, shares, USD value, and voting authority for each position. Sorted by USD value, descending. Source: data.sec.gov + filing archive. ?cik=1067983 (Berkshire) or ?ticker=BRK-B

Input

Example output

{
  "cik": "0001067983",
  "managerName": "Berkshire Hathaway Inc",
  "accessionNumber": "0000950123-25-001234",
  "filedDate": "2025-11-14",
  "reportDate": "2025-09-30",
  "informationTableUrl": "https://www.sec.gov/Archives/edgar/data/1067983/000095012325001234/informationtable.xml",
  "totalHoldings": 38,
  "returned": 10,
  "totalValueUsd": 312456000000,
  "holdings": [
    {
      "issuer": "APPLE INC",
      "titleOfClass": "COM",
      "cusip": "037833100",
      "valueUsd": 176558000000,
      "valueRaw": 176558000000,
      "shares": 905560000,
      "sharesOrPrincipalAmountType": "SH",
      "putCall": null,
      "investmentDiscretion": "DFND",
      "votingSole": 905560000,
      "votingShared": 0,
      "votingNone": 0
    }
  ]
}

Try it - see the 402 challenge (free)

curl -i "https://agent402.tools/api/edgar-13f-holdings?cik=1067983&limit=10"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/edgar-13f-holdings?cik=1067983&limit=10");

Part of these workflows

This tool is one step in 2 curated multi-tool workflows - agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• SEC filings deep-dive - Pull the full EDGAR picture of a US public company in one workflow: recent filings, key financial time series, insider trades, and full-text search across the corpus.
• SEC regulatory monitoring - The 'who just filed / who just bought / what just IPO'd / what does the full-text search say' monitoring loop. Five EDGAR tools composed: full-text search for a keyword, surface recent filings on the matched companies, pull insider Form 4 transactions, pull 13F institutional holdings changes, and check the IPO calendar. Different from sec-filings-deep-dive (which goes deep on one company's earnings) - this is the wide-and-recent radar.

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