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13F Tracker – SEC Institutional Holdings Lookup
x402
13F Tracker – SEC Institutional Holdings Lookup is a paid API for AI agents from api.timzinin.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Looks up SEC 13F institutional filing history for a given fund manager by CIK, ticker, or company name, returning recent filings and a summary
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call data & tool APIs
Output
Returns a JSON object with metadata (run time, settlement status, item count) and a results array containing: the resolved CIK, company name, match basis, match confidence, filing count over the requested lookback period, a plain-English summary, and an array of recent filings each with form type, filing date, accession number, and a direct SEC EDGAR URL.
Example use cases
Research hedge fund SEC disclosure history
“Pull up the 13F filing history for Renaissance Technologies — I want to know how many they've filed in the last year and when the most recent one was submitted.”
Verify institutional manager by CIK
“I have CIK 0001067983 — can you confirm which fund manager that is and show me their recent 13F filings with accession numbers?”
Monitor portfolio manager regulatory filings
“Check if Vanguard has filed any new 13F-HR forms in the last 365 days and give me a summary of what was found.”
Technical details
Endpoint
POSThttps://api.timzinin.com/api/thirteen-f-trackerWhen to prefer
Use this endpoint when you need a fast, pay-per-call lookup of SEC 13F institutional filing history without setting up your own EDGAR scraper. Ideal for agents that need to verify whether a fund manager is actively filing, retrieve the latest accession number for downstream processing, or resolve a company name or ticker to a canonical CIK. Prefer this over raw EDGAR queries when you want structured JSON output with confidence scoring and match basis already resolved.
Side effects
- Manager not found — found:false returned with empty filings array
- Ambiguous name match — multiple candidates returned with lower confidence scores
- Invalid or malformed CIK — resolution fails or returns no results
- SEC EDGAR unavailable — upstream timeout causing elevated run_ms or error
- Payment not settled — request rejected before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| managers | array | |
| sinceDays | integer | |
| maxConcurrency | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"meta": {
"run_ms": 1200,
"settled": true,
"item_count": 1
},
"results": [
{
"cik": "0001067983",
"found": true,
"manager": "0001067983",
"summary": "BERKSHIRE HATHAWAY INC (CIK 0001067983) — 5 13F filings in the last 365 day(s), most recent 13F-HR on 2026-05-15. Resolved from the CIK given, exact.",
"checkedAt": "2026-07-26T13:23:45.028Z",
"candidates": [],
"matchBasis": "cik",
"companyName": "BERKSHIRE HATHAWAY INC",
"filingsCount": 5,
"recentFilings": [
{
"url": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001067983&type=13F",
"form": "13F-HR",
"filedAt": "2026-05-15",
"accessionNumber": "0001193125-26-226661"
}
],
"matchConfidence": 1
}
]
}
}Tags
x402
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