# x402stock Form 144 Insider Intent-to-Sell Notices

> x402stock Form 144 Insider Intent-to-Sell Notices is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns SEC Form 144 insider intent-to-sell notices for a US-listed company, providing advance warning of planned insider share sales before they execute.

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/form-144/:ticker
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402stock-form-144-insider-intent-to-sell-notices-e811f671
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U6HHYGaJpmM5cH2X0RmwN

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 x402stock-form-144-insider-intent-to-sell-notices-e811f671
```

Example prompt: Pull the latest SEC Form 144 insider intent-to-sell notices for NVDA — show me up to 10, including who's planning to sell, how many shares, the approximate sale date, and their broker.

## When to prefer this

Use this endpoint when you need early-warning signals of insider selling intent — before Form 4 executed-trade disclosures appear. Ideal for pre-trade analysis, momentum screening, and governance research on US-listed equities. Prefer this over Form 4 endpoints when the user specifically wants proposed or planned sales rather than confirmed executed transactions.

## Known failure modes

- Invalid or unknown ticker returns empty results or a 404-style error
- Limit parameter of 0 or above 25 is rejected
- Company has no recent Form 144 filings, returning an empty list
- SEC EDGAR data lag may mean very recent filings are not yet available
- Private companies or non-US-listed tickers will not have EDGAR Form 144 data

## How this service works

Insider intent-to-sell notices (SEC Form 144) for one US-listed company — the leading indicator that front-runs the Form 4. Per notice: the insider and relationship, shares to be sold, aggregate market value, approximate sale date, broker, shares outstanding, and any sales in the past 3 months. A PROPOSED sale, not an executed trade. `?limit=` max 25. From SEC EDGAR. From x402stock

## Output

A list of up to 25 SEC Form 144 proposed-sale notices for the specified ticker. Each record includes the insider's name and relationship to the company, the number of shares intended to be sold, the aggregate market value of those shares, the approximate sale date, the broker through which the sale will occur, the total shares outstanding, and a summary of any sales the insider made in the prior 3 months. These are proposed sales, not confirmed executed trades.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "ticker": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "default": 5,
       "maximum": 25,
       "exclusiveMinimum": 0
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402stock-form-144-insider-intent-to-sell-notices-e811f671/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.x402stock.xyz](https://www.zero.xyz/host/agents.x402stock.xyz/llms.txt)