{"uid":"cap_6qVYEF4f3MQYqPsjlx8QU","slug":"insidewell-api-sec-form-4-cluster-buys-af863c93","name":"Insidewell API: SEC Form 4 Cluster Buys","description":"SEC Form 4 insider trading API: the latest insider transactions (open-market buys and sales, grants, option exercises and more) from EDGAR, refreshed about once a minute, with ticker, insider, role, transaction code, shares, price, dollar value, shares owned after, Rule 10b5-1 flag and the filing link. Filters: ticker, insider, code, minimum value, date range, role, 10b5-1 plan. Plus cluster buys (2+ insiders buying within 7 days). REST + MCP server. Information only, not investment advice.","url":"https://insidewell-api.cybermax-tools.workers.dev/x402/api/cluster-buys?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"],"type":"string"},"queryParams":{"type":"object","properties":{"days":{"type":"integer","default":14,"description":"Look back N days of filings (1-45)"},"limit":{"type":"integer","default":25,"description":"Clusters (1-100)"},"ticker":{"type":"string","description":"Only these tickers (comma separated)"},"window":{"type":"integer","default":7,"description":"Buys must fall within this many days of each other (1-30)"},"minValue":{"type":"number","default":0,"description":"Only clusters whose buys add up to at least this many US dollars"},"minInsiders":{"type":"integer","default":2,"description":"Distinct insiders buying (2-10)"}}}}},"output":{"type":"object","properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wIXEq4w-VqBNIeTlv4L6Y","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns clusters of 2+ insiders buying the same stock within a configurable time window, sourced from SEC Form 4 EDGAR filings refreshed ~every minute.","exampleAgentPrompt":"Show me any cluster insider buys from the last 14 days where at least 3 different insiders bought within a 7-day window and the total value adds up to at least $250,000 — limit results to the top 20 clusters.","exampleUseCases":[{"title":"Bullish insider cluster screen","prompt":"Pull all cluster insider buys from the past 30 days where at least 2 insiders bought within 7 days of each other and the combined purchases total at least $1,000,000 — show me up to 50 results."},{"title":"Single-ticker insider conviction check","prompt":"Has there been any coordinated insider buying in NVDA over the last 45 days? I want to see clusters of 2 or more insiders buying within a 7-day window, any dollar amount."},{"title":"Daily insider cluster monitoring alert","prompt":"Check for any new cluster insider buys filed in the last 1 day — at least 2 insiders, any value, up to 25 results — so I can flag unusual coordinated buying activity for my morning report."}],"resultDescription":"A JSON list of cluster buy events, each describing the ticker, the distinct insiders involved, their roles, individual and aggregate transaction details (shares, price, dollar value), the date range of the cluster, Rule 10b5-1 plan flags, and links to the underlying SEC Form 4 filings.","failureModes":["Invalid or unsupported ticker returns empty results or error","days parameter outside 1–45 range returns validation error","minInsiders below 2 or above 10 is rejected","Payment not included or insufficient USDC results in 402 response","No clusters found for given filters returns empty array","EDGAR data lag may mean very recent filings are not yet indexed"],"whenToPreferThis":"Use this endpoint when you specifically want to detect coordinated or conviction-signaling insider buying — multiple insiders at the same company buying within a short window — rather than single insider transactions. Prefer this over the general transactions endpoint when the investment thesis depends on cluster behavior as a signal of insider consensus.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:34:54.339Z","isFirstParty":false,"canonicalSlug":"insidewell-api-sec-form-4-cluster-buys-af863c93"}