Institutional ownership summary for a stock

Code snippets

curl "https://api.oanor.com/institutions-api/v1/ownership" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/institutions-api/v1/ownership", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/institutions-api/v1/ownership");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/institutions-api/v1/ownership",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "One US stock's institutional (13F) ownership summary: institutional_ownership_pct is the share of the company held by institutions, with the total shares outstanding, the total dollar value of institutional holdings and the number of institutional holders. A high and rising institutional ownership signals strong professional conviction. 13F data is disclosed quarterly. Source data is live from Nasdaq.",
        "source": "Nasdaq public institutional-holdings feed (api.nasdaq.com), keyless",
        "symbol": "AAPL",
        "total_shares_outstanding": 14687000000,
        "total_institutional_shares": 11014219744,
        "institutional_ownership_pct": 74.99,
        "total_institutional_holders": 6438,
        "total_institutional_value_usd": 3256134000000
    },
    "meta": {
        "timestamp": "2026-06-12T19:35:53.837Z",
        "request_id": "50efff3b-8677-49ce-b5e8-b290d12a9e5a"
    },
    "status": "ok",
    "message": "Ownership retrieved successfully",
    "success": true
}