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x402stock Fund Holdings by CIK (13F SEC Filing)
x402
x402stock Fund Holdings by CIK (13F SEC Filing) is a paid API for AI agents from x402stock.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-08).
Retrieves the latest 13F institutional fund holdings for a given SEC filer identified by CIK number, including all portfolio positions, values, and voting details.
Price / call$0.03
Success—
StatusUnknown
How this service works
Pay-per-call market and economic data API for AI agents: US stocks, ETFs and options, forex, crypto and on-chain perps, energy commodities, US and global macro (Fed, CPI, jobs, GDP, Treasury, World Bank), SEC filings, congressional trades, and market sentiment. No API keys, no accounts. Pay per request in USDC via x402 on Base.
Output
Returns the most recent 13F filing for the specified CIK, including filer name, filing date, report date, accession number, total portfolio value, total number of positions, and an array of individual holdings each with issuer name, CUSIP, share count, market value, share type, put/call indicator, investment discretion classification, and voting authority breakdown (sole, shared, none).
Example use cases
Analyze hedge fund portfolio positions
“I want to see what hedge fund Bridgewater Associates is currently holding — look up their latest 13F filing by CIK and give me the full list of positions with share counts, market values, and any put/call indicators.”
Track institutional ownership of a stock
“Can you pull the most recent 13F for Renaissance Technologies and tell me whether they hold any shares of Nvidia, how many shares they own, and what the reported market value is?”
Compare fund's total portfolio value
“Fetch the latest 13F filing for Pershing Square Capital Management using their SEC CIK number and summarize the total portfolio value, number of positions, and their top 10 largest holdings by market value.”
Technical details
Endpoint
GEThttps://x402stock.xyz/api/v1/fund-holdings/%7Bcik%7DWhen to prefer
Use this endpoint when you need structured 13F institutional holdings data for a specific SEC filer identified by CIK, especially when you want pay-per-call access without API key setup. Prefer over direct SEC EDGAR scraping when you need clean, parsed JSON output with voting and discretion breakdowns already structured.
Side effects
- Invalid or unknown CIK returns 404 or empty result
- CIK with no 13F filings on record returns no data
- Limit parameter out of range (<=0 or >1000) returns validation error
- Payment failure via x402/USDC results in 402 response before data is returned
- SEC EDGAR upstream outage may cause delayed or failed responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"cik": "0001067983",
"data": {
"form": "13F-HR",
"count": 1,
"holdings": [
{
"cusip": "037833100",
"value": 75000000000,
"issuer": "APPLE INC",
"shares": 300000000,
"put_call": null,
"shares_type": "SH",
"voting_none": 0,
"voting_sole": 300000000,
"voting_shared": 0,
"title_of_class": "COM",
"investment_discretion": "DFND"
}
],
"accession": "0000950123-26-005678",
"filing_date": "2026-05-15",
"report_date": "2026-03-31",
"total_value": 299000000000,
"total_positions": 42
},
"as_of": "2026-05-15T00:00:00.000Z",
"filer": "BERKSHIRE HATHAWAY INC",
"source": "sec_edgar"
}
}Tags
x402
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