NewConnect Claude, Cursor, ChatGPT, and other AI agents to API Ninjas via our MCP server
SEC API

Institutional Holdings Report (Form 13F-HR) SEC Filing API

Form 13F-HR is the quarterly holdings report that institutional investment managers exercising investment discretion over $100 million or more in Section 13(f) securities must file with the SEC. The information table discloses every reportable U.S.-listed equity position held at quarter-end — issuer name, CUSIP, security class, market value, shares, voting authority, and any put/call options. 13F filings are the primary source for tracking hedge-fund and asset-manager positioning ('whale watching') and quarter-over-quarter portfolio changes. Because a 13F is filed under the investment manager's CIK rather than the issuer's, the richest way to query it is by manager or by stock: see the Institutional Holdings API for parsed, queryable 13F holdings with quarter-over-quarter analytics.

(4.7)

From 3,289 users

600+

Applications using this API

API Status

Online - All Systems Operational

API Response Times

Average
P50
P75
P90
P95
402ms450ms496ms899ms1120ms

Didn't find what you were looking for? Suggest an improvement


/v1/sec GET

https://api.api-ninjas.com/v1/sec

Returns a list of 13F SEC filings (including the submission URL) for the given company. Set filing=13F-HR to search for 13F filings.

Parameters

  • ticker  required

    Ticker symbol of the company to search (e.g. BRK.B).

  • filing  required

    SEC filing form type. Use 13F-HR to search for 13F filings. See the full SEC API documentation for the complete list of supported form types.

  • start  optional premium only

    Start date to search. Must be in YYYY-MM-DD format (e.g. 2023-04-01).

  • end  optional premium only

    End date to search. Must be in YYYY-MM-DD format (e.g. 2023-04-01).

  • limit  optional premium only

    Number of results to return from 1 to 100. By default, up to 2 results are returned.

Headers

  • X-Api-Key  required

    API Key associated with your account.

Response

A JSON array of objects, each containing the following fields, or an error if the request is unsuccessful.

  • ticker

    Ticker symbol of the company.

  • filing_date

    Date of the SEC filing in YYYY-MM-DD format.

  • filing_url

    URL of the SEC filing.

  • form_type

    Type of SEC filing (e.g. 13F-HR).

Sample Request Live Demo!

ticker
filing
start
end
limit

Try this API endpoint with all available parameters in our API playground

https://api.api-ninjas.com/v1/sec?ticker=BRK.B&filing=13F-HR

Headers

X-Api-KeyLog in or sign up to get your API Key

Sample Response

JSON
[
    {
      ticker:"BRK.B",
      filing_date:"2025-05-15",
      filing_url:"https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001067983&type=13F-HR&dateb=&owner=include&count=40",
      form_type:"13F-HR"
    }
]

Code Examples

1 2 curl -X GET "https://api.api-ninjas.com/v1/sec?ticker=BRK.B&filing=13F-HR" \ -H "X-Api-Key: YOUR_API_KEY"

If your programming language is not listed in the Code Example above, you can still make API calls by using any HTTP request library and following the documentation above.