{"uid":"cap_argg7Vpq7s8V5q52SoGnJ","slug":"financial-datasets-ai-activist-ownership-sec-schedule-13d-27c6eb35","name":"Financial Datasets AI — Activist Ownership (SEC Schedule 13D)","description":"Activist stakes from SEC Schedule 13D (holders above 5% with intent to influence control), by subject ticker or filer CIK: holder, shares held, percent of class, voting power and filing date, with optional amendment history. Use when an agent asks which activists hold a company, or where an activist is active. Non-Professional use; Professional use needs a plan at financialdatasets.ai.","url":"https://api.financialdatasets.ai/activist-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":{"limit":{"type":"integer","default":10,"description":"The total number of rows to return (default: 10; no maximum)."},"cursor":{"type":"string","description":"Opaque pagination cursor from a previous response's next_page_url."},"ticker":{"type":"string","description":"The ticker symbol of the subject company."},"history":{"type":"boolean","default":false,"description":"When true, returns the full amendment history of each stake instead of only its current state."},"filer_cik":{"type":"string","description":"The SEC CIK of the filer (the beneficial owner)."},"filing_date":{"type":"string","description":"Filter by exact filing date in YYYY-MM-DD format."},"filing_date_gt":{"type":"string","description":"Filter by filing date greater than this date (YYYY-MM-DD)."},"filing_date_lt":{"type":"string","description":"Filter by filing date less than this date (YYYY-MM-DD)."},"filing_date_gte":{"type":"string","description":"Filter by filing date greater than or equal to this date (YYYY-MM-DD)."},"filing_date_lte":{"type":"string","description":"Filter by filing date less than or equal to this date (YYYY-MM-DD)."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gl_8KigPfIYFx99T230I_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns activist ownership stakes (SEC Schedule 13D filers above 5% with intent to influence control) for a subject company ticker or filer CIK, including holder details, shares held, percent of class, voting power, and filing date.","exampleAgentPrompt":"Which activist investors currently hold stakes in Apple — pull the latest Schedule 13D filings showing their percent of class and voting power.","exampleUseCases":[{"title":"Track activist interest in a target company","prompt":"Show me all the activist investors who have filed a Schedule 13D on Southwest Airlines, including how many shares each holds and their percent of the float."},{"title":"Monitor where an activist fund is active","prompt":"Where does Elliott Management currently have activist positions? Give me the full list of companies they've filed 13Ds on and their stake sizes."},{"title":"Research recent activist filings timeline","prompt":"Pull all SEC Schedule 13D filings from the last 30 days with their filing dates so I can see which companies have attracted new activist attention recently."}],"resultDescription":"A paginated list of activist ownership records from SEC Schedule 13D filings, each containing the holder name, filer CIK, subject company ticker, number of shares held, percent of class owned, voting power, and filing date. When history=true, each record also includes the full amendment history showing how the stake has evolved over time. A next_page_url cursor is provided for pagination.","failureModes":["Missing both ticker and filer_cik — at least one must be provided","Invalid ticker symbol returns empty results","Invalid filer_cik format returns empty results or error","Date filter typos (wrong format, not YYYY-MM-DD) return validation error","Non-Professional use attempting to access plan-restricted data may be blocked","Pagination cursor from a different query context may return unexpected results","Payment failure (x402) if USDC balance is insufficient"],"whenToPreferThis":"Use this endpoint specifically when you need Schedule 13D activist ownership data — i.e., beneficial owners above 5% who have declared intent to influence corporate control. Prefer this over the general beneficial ownership endpoint (13D+13G) when you want to isolate only activist investors, not passive large holders. Choose this when building activist tracking dashboards, M&A intelligence tools, or corporate governance monitors.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T12:43:34.034Z","isFirstParty":false,"canonicalSlug":"financial-datasets-ai-activist-ownership-sec-schedule-13d-27c6eb35"}