# Market Intelligence API – SEC Form 144 Insider Sale Notices

> Market Intelligence API – SEC Form 144 Insider Sale Notices is a paid API for AI agents from api.marketintelligenceapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Returns SEC Form 144 notices of proposed insider sales (officers, directors, 10% holders) for a given US-listed stock ticker over a configurable look-back period.

## Facts

- Endpoint: GET https://api.marketintelligenceapi.com/api/v1/sec/form-144/:symbol?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-intelligence-api-sec-form-144-insider-sale-notices-ef5a975a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M-uxP4t0TiI5Uw5HqXrIp

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 market-intelligence-api-sec-form-144-insider-sale-notices-ef5a975a
```

Example prompt: Can you pull up any SEC Form 144 insider sale notices for NVDA over the past 90 days — I want to see which executives or directors are planning to sell and how much?

## When to prefer this

Use this endpoint when you specifically need SEC Form 144 pre-sale notices filed by corporate insiders of US-listed companies. It is the right choice when you want advance warning of planned insider sales before they execute, as opposed to post-trade Form 4 disclosures. Prefer this over generic news or sentiment APIs when regulatory filing data is required for investment due diligence or compliance monitoring.

## Known failure modes

- 404 Not Found – ticker symbol is not recognized or has no SEC filings (no charge applied)
- Invalid days parameter – outside the 1–365 range returns a validation error
- Payment failure – x402 micropayment not completed, request blocked
- Rate limiting – too many calls in a short period
- Empty result set – ticker is valid but no Form 144 notices exist in the look-back window

## How this service works

SEC Form 144 insider sale notices of a US stock: proposed sales by officers, directors and 10% holders over days=1-365 - planned sale value, sellers, relationship and dates. Use to see insider sales before they happen.

## Output

A JSON list of SEC Form 144 notice records for the requested ticker, each containing the seller's name, their relationship to the company (officer, director, 10% holder), the planned sale value, proposed sale date, and other relevant filing details. Returns a 404 if the ticker is unknown, and no charge is made in that case.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "symbol"
     ],
     "properties": {
      "symbol": {
       "type": "string",
       "examples": [
        "AAPL"
       ],
       "description": "Any US ticker with SEC filings (about 10,000, e.g. AAPL, KO, JPM), not only the example. Unknown: 404, not charged."
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "default": 90,
       "maximum": 365,
       "minimum": 1,
       "description": "Look-back period in days"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "description": "Example JSON response returned by this endpoint"
    }
   },
   "additionalProperties": true
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-intelligence-api-sec-form-144-insider-sale-notices-ef5a975a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.marketintelligenceapi.com](https://www.zero.xyz/host/api.marketintelligenceapi.com/llms.txt)