{"uid":"cap_v5OfHErFnlQfgNQcOgWk4","slug":"sec-schedule-13d-13g-beneficial-ownership-filings-c4f76775","name":"SEC Schedule 13D/13G Beneficial Ownership Filings","description":"Schedule 13D/13G beneficial-ownership filings: every >5% stake and every amendment to it.","url":"https://bryan-hermes.lenok-gorgon.ts.net:8443/v1/ownership?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"cik":{"type":"string","description":"CIK"},"days":{"type":"integer","default":730,"description":"Lookback window in days"},"limit":{"type":"integer","default":25,"description":"Max filings returned"},"ticker":{"type":"string","description":"Issuer ticker"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__opEhxLqg4PsuKEMiBRNo","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns Schedule 13D and 13G beneficial-ownership filings for a given issuer, covering every >5% stake and all amendments, sourced from SEC EDGAR.","exampleAgentPrompt":"Pull all Schedule 13D and 13G beneficial-ownership filings for Tesla (ticker TSLA) from the past two years — I want to see every major stakeholder who disclosed a position over 5% and any amendments they filed.","exampleUseCases":[{"title":"Activist investor surveillance for a portfolio stock","prompt":"Show me all 13D filings for Salesforce (ticker CRM) over the last 730 days — I want to know if any activist investors have built a stake above 5%."},{"title":"Due diligence on large shareholders before acquisition","prompt":"Who are the major beneficial owners that have filed 13D or 13G disclosures for Paramount Global (ticker PARA)? Give me the last 25 filings so I can understand the ownership landscape."},{"title":"Monitoring recent 13G amendments for a watchlist company","prompt":"Have there been any new or amended Schedule 13G filings for Rivian (ticker RIVN) in the past 90 days? I need to track whether any institutional holders changed their reported stakes."}],"resultDescription":"A list of Schedule 13D and 13G beneficial-ownership filings for the specified issuer, each entry including filer identity, ownership percentage, filing date, filing type (13D or 13G), and amendment status, up to the specified limit within the lookback window.","failureModes":["Invalid or unrecognized ticker returns no results or an error","CIK not found in EDGAR returns empty result set","Lookback window too narrow yields zero filings for infrequently reported issuers","Rate limit or payment failure returns 402 Payment Required","Requesting both ticker and CIK simultaneously may cause ambiguous resolution"],"whenToPreferThis":"Use this endpoint when you specifically need Schedule 13D or 13G beneficial-ownership disclosures — i.e., who owns more than 5% of an issuer and any amendments to those positions. Prefer this over general filing history endpoints when the focus is on large shareholders, activist investors, or ownership transparency. It is more targeted than a full EDGAR filing search and returns normalized ownership data rather than raw document links.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T06:32:18.108Z","isFirstParty":false,"canonicalSlug":"sec-schedule-13d-13g-beneficial-ownership-filings-c4f76775"}