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SEC 13F Holdings (FinzData)

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SEC 13F Holdings (FinzData)

SEC 13F Holdings (FinzData)

13F institutional holdings from SEC filings: a manager's full book with weights, every holder of a stock, or ownership history by quarter. Uses your FinzData API key.

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Get 13F institutional holdings from SEC filings as a clean dataset:

  • Ownership of a stock by quarter: managers holding it, shares, reported value, new / added / trimmed / exited positions (free FinzData key: latest quarter)
  • Every holder of a stock for a quarter
  • A manager's full book with portfolio weights (e.g. Berkshire Hathaway, CIK 1067983)
  • Search managers by name

Coverage: every 13F filer since 2013 Q2 (8,856 managers filed for 2026 Q2). Data from public SEC Form 13F filings, compiled by FinzData.

You need a FinzData API key (free). Manager books, holder lists and earlier quarters need a look-back bundle.

Guide: https://finzdata.com/guides/13f-holdings-api-python