# SEC Form 4 Insider Trading Decoded

> SEC Form 4 Insider Trading Decoded is a paid API for AI agents from x402-filings.datalayer.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Returns only genuine open-market insider buys (code P) and sales (code S) from SEC Form 4 filings, filtering out RSU vests and tax-withholding noise, with cluster-buy detection for a given ticker or CIK.

## Facts

- Endpoint: GET https://x402-filings.datalayer.workers.dev/v1/sec/insider-trading?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sec-form-4-insider-trading-decoded-37aec5e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GcHCtFceM8ah0ilW6lsyx

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sec-form-4-insider-trading-decoded-37aec5e4
```

Example prompt: Pull only the real insider buys and sells for NVDA — nothing from RSU vests or tax withholding — for the past 90 days, up to 15 filings, and flag if multiple insiders bought around the same time.

## When to prefer this

Choose this endpoint when you need signal-pure insider conviction data — open-market buys and sells only — rather than raw Form 4 dumps that mix RSU vests, ESPP purchases, and tax-withholding sales. Prefer this over generic SEC EDGAR scrapers when the goal is to distinguish true insider sentiment from automatic plan-driven transactions, or when cluster-buy detection across multiple insiders is needed for a single issuer.

## Known failure modes

- Missing ticker and CIK returns a validation error — at least one is required
- Invalid or unrecognized ticker returns empty results or a not-found error
- Date range with no filings returns an empty list
- Limit outside 1-25 range may return a parameter validation error
- CIK not zero-padded may still resolve but malformed values will fail
- SEC EDGAR upstream latency or outages may cause delayed or failed responses

## How this service works

Real insider conviction from SEC Form 4 filings. Classifies every transaction by its one-letter code, so an RSU vest is not reported as an insider buy and the automatic tax withholding that follows is not reported as a sale. Returns only codes P and S — the trades where someone chose to move money at the market price — plus cluster-buy detection when several insiders buy the same issuer within a window. Query by ticker or CIK.

## Output

A list of filtered Form 4 transactions classified as genuine open-market buys (code P) or sells (code S), with transaction date, price, shares, insider identity, and role. Also includes a cluster-buy detection signal when multiple insiders buy the same issuer within a short time window.

## Request schema (JSON Schema)

```json
{
 "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": {
      "cik": {
       "type": "string",
       "examples": [
        "0000320193"
       ],
       "description": "SEC CIK, zero-padded or not. Use when the ticker is ambiguous."
      },
      "end": {
       "type": "string",
       "examples": [
        "2026-08-15"
       ],
       "description": "ISO date, inclusive. Defaults to today."
      },
      "limit": {
       "type": "integer",
       "examples": [
        10
       ],
       "description": "Max filings to read, 1-25. Default 10."
      },
      "start": {
       "type": "string",
       "examples": [
        "2026-05-01"
       ],
       "description": "ISO date, inclusive. Defaults to 90 days ago."
      },
      "ticker": {
       "type": "string",
       "examples": [
        "AAPL"
       ],
       "description": "US ticker, e.g. AAPL. Either ticker or cik is required."
      },
      "informativeOnly": {
       "type": "boolean",
       "examples": [
        true
       ],
       "description": "Return only open-market buys and sales (codes P/S). Default true."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-form-4-insider-trading-decoded-37aec5e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-filings.datalayer.workers.dev](https://www.zero.xyz/host/x402-filings.datalayer.workers.dev/llms.txt)