Use when an agent must see what an institutional manager (Berkshire, hedge funds...
https://1gateway.dev/v1/filings/us/13fOverview
Use when an agent must see what an institutional manager (Berkshire, hedge funds, banks) holds and what it bought or sold. Input: cik (or ticker), optional period (quarter end), limit. Output: JSON manager, filing, total value, top holdings with value, shares, put/call and portfolio weight; changes vs the previous 13F-HR: new, added, reduced, exited with share change %. Organisations only. Example: ?cik=1067983&limit=10
Protocol
x402
Price
$0.0040
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
crypto/wallet
Provider
13F Institutional Holdings
Source
bazaar
Indexed
2026-11-12 23:08:03
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"cik": "1067983",
"limit": 10,
"period": "2026-06-30",
"ticker": "BRK-B"
},
"type": "http"
}
Output Schema
{
"example": {
"attribution": "Source: U.S. Securities and Exchange Com…",
"changes": {
"added": [],
"counts": {},
"exited": [],
"new": [],
"previousPeriod": "2026-03-31",
"reduced": []
},
"filing": {
"accession": "0001193125-26-352200",
"filed": "2026-08-14",
"period": "2026-06-30",
"url": "https://www.sec.gov/Archives/edgar/data/…"
},
"holdings": [
{}
],
"manager": {
"cik": 1067983,
"name": "BERKSHIRE HATHAWAY INC"
},
"notes": [
"Form 13F-HR lists U.S. exchange-traded l…"
],
"totals": {
"positions": 29,
"valueUsd": 299253556246
}
},
"type": "json"
}