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latestOpenAPI 3.0.02026-08-2010141507.9 KB

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Ownership

Recent ownership activity

Stock Pro

Combined feed of recent ownership changes for a stock:

  • Insider transactions from the last 90 days (deduplicated, officers/directors only)
  • Beneficial owner filings from the last 180 days (Schedule 13D/13G)
  • Institutional changes from the latest quarter (new positions, 25%+ increases/decreases)

Provides a single-call overview of all ownership activity without needing to hit multiple endpoints.

get/api/ownership/activity

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.

limitinteger

Maximum items per category

Response

Recent ownership activity across all categories

Example response

{
  "insiderTransactions": [
    {
      "ownerName": "Tim Cook",
      "transactionCode": "S",
      "shares": 50000,
      "pricePerShare": 245.5,
      "acquiredDisposed": "D",
      "transactionDate": "2025-12-15",
      "officerTitle": "Chief Executive Officer"
    }
  ],
  "beneficialOwnerFilings": [
    {
      "reportingPersonName": "The Vanguard Group",
      "percentOfClass": 9.47,
      "aggregateAmountOwned": 1415826462,
      "reportDate": "2025-07-29"
    }
  ],
  "institutionalChanges": [
    {
      "managerName": "BlackRock, Inc.",
      "managerCik": 2012383,
      "shares": 1157054556,
      "value": 314465315556
    }
  ]
}