StableFinance SEC 13F Institutional Holdings

x402

StableFinance SEC 13F Institutional Holdings is a paid API for AI agents from stablefinance.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Retrieves SEC 13F institutional holdings data, filterable by stock ticker or filer CIK, with date range support

Price / call$0.02

Seller volume →—

Success—

StatusUnknown

How this service works

SEC 13F positions. Pivot by held security (ticker) or by filer (filer_cik).

Output

Returns an array of institutional holdings records including the ticker, filer CIK, and detailed position data drawn from SEC 13F filings. Results can be scoped to a specific security or a specific filer institution, optionally filtered to a date range.

Example use cases

Example prompt

“Show me all institutional holders of NVDA from 13F filings for the report period ending 2024-06-30, up to 50 results.”

Technical details

Endpoint

GEThttps://stablefinance.dev/api/institutional-holdings

When to prefer

Use this endpoint when you need SEC-sourced 13F institutional ownership data for a specific stock or institutional filer, especially when you want to filter by reporting period. Prefer this over general news or market data sources when you need regulatory-grade, timestamped institutional position data rather than estimated or real-time ownership.

Side effects

Unknown ticker returns empty holdings array
Invalid filer_cik returns empty results
Malformed report_period date (not YYYY-MM-DD) returns validation error
No matching holdings for date range returns empty array
Exceeding limit maximum of 200 returns schema validation error
Missing both ticker and filer_cik may return unfiltered or large result set

Input

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "limit": 50,
      "ticker": "AAPL",
      "report_period_gte": "2024-01-01",
      "report_period_lte": "2024-06-30"
    }
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "_truncated": true,
  "_originalSize": 35900
}

Schema · Response

{
  "type": "json",
  "example": {
    "ticker": "AAPL",
    "institutional_holdings": [
      {
        "cusip": "037833100",
        "shares": 905560000,
        "ticker": "AAPL",
        "form_type": "13F-HR",
        "value_usd": 174580000000,
        "filer_name": "BERKSHIRE HATHAWAY INC",
        "filing_date": "2026-02-14",
        "report_period": "2025-12-31",
        "name_of_issuer": "APPLE INC",
        "accession_number": "0000950123-26-001234"
      }
    ]
  }
}

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How this service works

SEC 13F positions. Pivot by held security (ticker) or by filer (filer_cik).

Output

Technical details

Endpoint

GEThttps://stablefinance.dev/api/institutional-holdings

When to prefer

Side effects

Unknown ticker returns empty holdings array
Invalid filer_cik returns empty results
Malformed report_period date (not YYYY-MM-DD) returns validation error
No matching holdings for date range returns empty array
Exceeding limit maximum of 200 returns schema validation error
Missing both ticker and filer_cik may return unfiltered or large result set

Input

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "limit": 50,
      "ticker": "AAPL",
      "report_period_gte": "2024-01-01",
      "report_period_lte": "2024-06-30"
    }
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "_truncated": true,
  "_originalSize": 35900
}

Schema · Response

{
  "type": "json",
  "example": {
    "ticker": "AAPL",
    "institutional_holdings": [
      {
        "cusip": "037833100",
        "shares": 905560000,
        "ticker": "AAPL",
        "form_type": "13F-HR",
        "value_usd": 174580000000,
        "filer_name": "BERKSHIRE HATHAWAY INC",
        "filing_date": "2026-02-14",
        "report_period": "2025-12-31",
        "name_of_issuer": "APPLE INC",
        "accession_number": "0000950123-26-001234"
      }
    ]
  }
}