# SEC Form 144 Insider Intent-to-Sell Notices by Ticker

> SEC Form 144 Insider Intent-to-Sell Notices by Ticker is a paid API for AI agents from agents.x402stock.xyz, paid per call via MPP, $0.02/call, status unknown (last checked 2026-09-10).

Returns SEC Form 144 filings (insider intent-to-sell notices) for a US-listed company, showing proposed insider sales before they are executed and reported on Form 4.

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/form-144/{ticker}
- Price: $0.02/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-09-10
- Activations on Zero: 0
- Provider: agents.x402stock.xyz
- Website: https://agents.x402stock.xyz
- Canonical page: https://www.zero.xyz/c/agents-x402stock-xyz-sec-form-144-insider-intent-to-sell-notices-by-3da784b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AK36gCEDRwN17rPq0CC6u

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 agents-x402stock-xyz-sec-form-144-insider-intent-to-sell-notices-by-3da784b0
```

Example prompt: Pull the latest SEC Form 144 insider intent-to-sell notices for NVDA — show me up to 10 filings, including who is planning to sell, how many shares, the approximate sale date, and what they sold in the past 3 months.

## When to prefer this

Use this endpoint when you need a leading indicator of insider selling activity before Form 4 (executed trade) is filed. Ideal for monitoring proposed insider dispositions, screening for unusual insider selling ahead of price moves, or building an insider activity dashboard. Prefer this over Form 4 endpoints when you want to catch planned sales before execution. Best suited for US-listed tickers on major exchanges with SEC EDGAR filing obligations.

## Known failure modes

- Invalid or unknown ticker returns empty data or error
- Ticker not in SEC EDGAR system (e.g. OTC-only) may return no filings
- limit parameter exceeding 25 is rejected
- No recent Form 144 filings for the ticker results in empty notices array
- Unstructured filings may have null values across most fields (structured=false)
- Network or upstream SEC EDGAR unavailability causes timeout or 5xx error

## 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 JSON object containing a list of Form 144 notices for the requested ticker, each with: insider name and relationship to company, security name, number of shares proposed for sale, aggregate market value, approximate sale date, broker, shares outstanding, exchange, notice and filing dates, acquisition history for those shares, and a record of any shares sold by that insider in the prior 3 months. Also includes total count of parsed filings and source/as-of metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "ticker"
 ],
 "properties": {
  "limit": {
   "type": "integer",
   "default": 5,
   "maximum": 25,
   "exclusiveMinimum": 0
  },
  "ticker": {
   "type": "string",
   "description": "US-listed ticker symbol (uppercase), e.g. AAPL."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "ticker",
  "data",
  "source",
  "as_of"
 ],
 "properties": {
  "data": {
   "type": "object",
   "required": [
    "filings_parsed",
    "count",
    "notices"
   ],
   "properties": {
    "count": {
     "type": "number"
    },
    "notices": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "filing_date",
       "accession",
       "form",
       "url",
       "structured",
       "insider_name",
       "relationships",
       "security",
       "broker",
       "shares_to_be_sold",
       "aggregate_market_value",
       "shares_outstanding",
       "approx_sale_date",
       "exchange",
       "notice_date",
       "acquisitions",
       "sold_past_3_months"
      ],
      "properties": {
       "url": {
        "type": "string"
       },
       "form": {
        "type": "string"
       },
       "broker": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "exchange": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "security": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "accession": {
        "type": "string"
       },
       "structured": {
        "type": "boolean"
       },
       "filing_date": {
        "type": "string"
       },
       "notice_date": {
        "anyOf": [
         {
          "type": "string"
         },
         {
          "type": "null"
         }
        ]
       },
       "acquisitions": {
        "type": "array",
        "items": {
         "type": "object",
         "required": [
          "security",
          "acquired_date",
          "nature_of_acquisition",
          "amount_acquired"
         ],
         "properties": {
          "security": {
           "anyOf": [
            {
             "type": "string"
            },
            {
             "type": "null"
            }
           ]
          },
          "acquired_date": {
           "anyOf": [
            {
             "type": "string"
            },
            {
             "type": "null"
            }
           ]
          },
          "amount_acquired": {
           "anyOf": [
            {
             "type": "number"
            },
            {
             "type": "null"
         
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agents-x402stock-xyz-sec-form-144-insider-intent-to-sell-notices-by-3da784b0/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)