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SEC 13F Holders: Who Owns a Stock

Pricing

$0.30 / 1,000 holders

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SEC 13F Holders: Who Owns a Stock

SEC 13F Holders: Who Owns a Stock

Every institutional manager reporting a security on Form 13F in a quarter, from the SEC's official 13F data sets. Search by CUSIP or issuer name. Shares, value, put/call, quarter-over-quarter change and filing dates.

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$0.30 / 1,000 holders

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The reverse of a 13F lookup: give a CUSIP or issuer name and get every institutional manager that reported it on Form 13F-HR for a quarter. The source is the SEC's official Form 13F data sets.

What you get

Per manager and position: manager name and CIK, shares, value in USD, put/call, share type, filing date, form (13F-HR or 13F-HR/A), accession number, and each holder's share of all reported shares. Turn on includeChange for previous-quarter shares, share change and a new-position flag.

Use cases

  • Institutional ownership and crowding for any stock.
  • New and exited positions quarter over quarter.
  • Put and call holders by fund.

Input examples

{"cusips": ["037833100"], "includeChange": true, "maxItems": 100}
{"issuerName": "GAMESTOP", "positionType": "options"}
{"cusips": ["67066G104"], "period": "2026-03-31", "minValueUsd": 100000000}

Notes

  • Managers must file within 45 days of quarter end. The SEC publishes each quarter's data set after that window closes.
  • Sub-account rows from one filing are combined into one position.
  • When an amendment restates a filing, the latest filing is used. "New holdings" amendments add rows.
  • Pricing: per holder row returned.