# x402stock Form 144 SEC Filing Lookup

> x402stock Form 144 SEC Filing Lookup is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402 or MPP, $0.02/call, status unknown (last checked 2026-10-29).

Retrieves SEC Form 144 filings (proposed insider stock sales) for US-listed companies via pay-per-request USDC payment

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/form-144?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402stock-form-144-sec-filing-lookup-eaccd3c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2Q_rAo-JiGhvckeDqMQMH

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-sec-filing-lookup-eaccd3c6
```

Example prompt: Pull the latest SEC Form 144 filings for Tesla — I want to see which insiders have recently proposed to sell shares, how many shares they plan to sell, and through which brokers.

## When to prefer this

Use this endpoint when you need SEC Form 144 insider proposed-sale data specifically — it is distinct from Form 4 (reported completed transactions) and is the right choice when monitoring early signals of planned insider selling. Prefer this over general SEC EDGAR scraping when you need a clean, agent-ready JSON response without parsing HTML filings manually, and when paying per-request in USDC is acceptable.

## Known failure modes

- Invalid or unrecognized ticker symbol returns an error or empty result
- No Form 144 filings on record for the specified company returns empty dataset
- Payment failure in USDC via x402 results in request rejection
- Malformed request body returns a validation error
- Endpoint returns stale data if SEC EDGAR pipeline is delayed

## How this service works

Market-wide recent insider intent-to-sell notices (SEC Form 144) across all issuers

## Output

Returns SEC Form 144 filing data for the queried company, including proposed insider stock sales with details such as filer identity, relationship to the company, number of shares proposed for sale, estimated sale date, broker/dealer information, and the nature of the securities involved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "days": {
   "type": "integer",
   "default": 14,
   "maximum": 90,
   "exclusiveMinimum": 0
  },
  "enddt": {
   "type": "string",
   "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
  },
  "limit": {
   "type": "integer",
   "default": 20,
   "maximum": 50,
   "exclusiveMinimum": 0
  },
  "startdt": {
   "type": "string",
   "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "source",
  "as_of",
  "start_date",
  "end_date",
  "total_matches",
  "count",
  "notices"
 ],
 "properties": {
  "as_of": {
   "type": "string"
  },
  "count": {
   "type": "number"
  },
  "source": {
   "type": "string",
   "const": "sec_edgar"
  },
  "notices": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "ticker",
     "issuer",
     "issuer_cik",
     "insider_name",
     "relationships",
     "security",
     "shares_to_be_sold",
     "aggregate_market_value",
     "approx_sale_date",
     "filing_date",
     "accession",
     "url"
    ],
    "properties": {
     "url": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "issuer": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "ticker": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "security": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "accession": {
      "type": "string"
     },
     "issuer_cik": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "filing_date": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "insider_name": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "relationships": {
      "type": "array",
      "items": {
       "type": "string"
      }
     },
     "approx_sale_date": {
      "anyOf": [
       {
        "type": "string"
       },
       {
        "type": "null"
       }
      ]
     },
     "shares_to_be_sold": {
      "anyOf": [
       {
        "type": "number"
       },
       {
        "type": "null"
       }
      ]
     },
     "aggregate_market_value": {
      "anyOf": [
       {
        "type": "number"
       },
       {
        "type": "null"
       }
      ]
     }
    },
    "additionalProperties": false
   }
  },
  "end_date": {
   "type": "string"
  },
  "start_date": {
   "type": "string"
  },
  "total_matches": {
   "type": "number"
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402stock-form-144-sec-filing-lookup-eaccd3c6/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)