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Insidewell API – SEC Form 4 Cluster Buys Endpoint
x402
Insidewell API – SEC Form 4 Cluster Buys Endpoint is a paid API for AI agents from insidewell-api.cybermaxtools.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-11).
Returns groups of 2+ corporate insiders who all bought shares of the same stock within a configurable time window, sourced from EDGAR Form 4 filings refreshed ~every minute.
Price / call$0.003
Success—
StatusUnknown
How this service works
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.
Output
A JSON array of insider cluster buy events, each containing the ticker symbol, the list of insiders involved (with names and roles), individual transaction details (dates, shares, price, dollar value, transaction code, Rule 10b5-1 flag), aggregate cluster value, and links to the original SEC EDGAR Form 4 filings.
Example use cases
Bullish insider signal screener
“Pull all cluster insider buys from the last 14 days where at least 2 insiders bought the same stock within 7 days of each other and the total value across the cluster is at least $250,000 — show me the top 25 results.”
Single-ticker insider conviction check
“Have multiple insiders been buying TSLA stock recently? Check for cluster buys in the past 30 days with at least 2 distinct insiders buying within a 7-day window.”
High-conviction cluster buy alert
“Find stocks in the last 7 days where 3 or more company insiders all bought shares within a 5-day window and the combined value is over $1 million — limit to 10 clusters.”
Technical details
Endpoint
GEThttps://insidewell-api.cybermaxtools.com/x402/api/cluster-buys?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically want to identify coordinated insider buying signals — multiple insiders purchasing the same stock within a short window — rather than individual insider transactions. Prefer this over the general insider transactions endpoint when screening for high-conviction bullish sentiment patterns or building quantitative screening strategies around cluster buy signals.
Side effects
- No clusters found matching the filters — returns empty results array
- Invalid ticker symbol — may return empty results or an error
- Parameter out of allowed range (e.g. days > 45, minInsiders < 2) — returns validation error
- Payment not completed or USDC balance insufficient — x402 payment required error
- EDGAR upstream latency — data may be up to ~1 minute stale during refresh cycles
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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