Sign in
latestOpenAPI 3.0.02026-08-2010141507.9 KB

3d5897270d8a

Ownership

Ownership summary

Stock Pro

Returns an aggregate ownership breakdown for a stock: total institutional ownership percentage, holder count, top 10 holders, beneficial owner count, and insider count. Institutional data is from the latest 13F quarter. Ownership percentage is calculated against shares outstanding.

For symbols without an issuer-level shares-outstanding figure (e.g. ETFs, funds), the sharesOutstanding, institutional.pctOfSharesOutstanding, and per-holder pctOfShares fields are omitted from the response.

get/api/ownership/summary

Query parameters

symbolstring

Stock ticker symbol. Identify the entity by exactly one of: symbol, cik, cusip, composite_figi, or share_class_figi. At least one is required.

cikinteger

SEC Central Index Key (CIK).

cusipstring

CUSIP identifier (9 characters).

composite_figistring

Composite OpenFIGI identifier.

share_class_figistring

Share-class OpenFIGI identifier.

Response

Aggregate ownership breakdown

sharesOutstandingnumber

Total shares outstanding from the latest filing. Omitted when no issuer-level shares-outstanding figure is available (e.g. for ETFs/funds).

beneficialOwnerCountinteger

Number of 5%+ beneficial owners (Schedule 13D/13G filers)

insiderCountinteger

Number of distinct company insiders (officers and directors)

Example response

{
  "sharesOutstanding": 14700000000,
  "institutional": {
    "holderCount": 2847,
    "totalShares": 10234567890,
    "totalValue": 2891234567000,
    "pctOfSharesOutstanding": 69.62,
    "reportDate": "2025-12-31",
    "topHolders": [
      {
        "managerName": "BlackRock, Inc.",
        "managerCik": 2012383,
        "shares": 1157054556,
        "value": 314465315556,
        "pctOfShares": 7.87
      }
    ],
    "votingAuthority": {
      "sole": 8123456789,
      "shared": 234567890,
      "none": 12345678
    },
    "topQoqMovers": {
      "increases": [
        {
          "managerName": "BlackRock, Inc.",
          "managerCik": 2012383,
          "shares": 1157054556,
          "prevShares": 1100000000,
          "deltaShares": 57054556,
          "deltaPct": 5.2,
          "pctOfShares": 7.87
        }
      ],
      "decreases": [
        {
          "managerName": "Vanguard Group Inc.",
          "managerCik": 102909,
          "shares": 980000000,
          "prevShares": 1050000000,
          "deltaShares": -70000000,
          "deltaPct": -6.7,
          "pctOfShares": 6.67
        }
      ]
    }
  },
  "beneficialOwnerCount": 3,
  "insiderCount": 12
}