# SEC EDGAR Ownership Stakes Lookup

> SEC EDGAR Ownership Stakes Lookup is a paid API for AI agents from sec-mcp-worker.stackstats.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).

Retrieves institutional and insider ownership stake filings for a given US stock ticker from SEC EDGAR over a configurable lookback window.

## Facts

- Endpoint: GET https://sec-mcp-worker.stackstats.workers.dev/v1/ownership-stakes/%7Bticker%7D?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sec-edgar-ownership-stakes-lookup-e48dbefc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q44AiXBoOcDGa8zxhGo-J

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-edgar-ownership-stakes-lookup-e48dbefc
```

Example prompt: Pull the ownership stakes for NVDA from SEC EDGAR filings over the last 90 days — I want to see who the major institutional and insider shareholders are.

## When to prefer this

Use this endpoint when you need structured ownership stake data — institutional and insider holders — for a specific US-listed stock, sourced directly from SEC EDGAR public filings. Prefer this over general financial data APIs when you want authoritative regulatory filing data (13F, 13D, 13G, Form 4) rather than aggregated third-party estimates. It is well-suited for agent workflows that need to verify beneficial ownership, track major shareholder changes, or perform due diligence on a company's cap table structure.

## Known failure modes

- Invalid or unrecognized ticker symbol returns an error or empty result
- Ticker with no filings in the requested time window returns empty data
- Days parameter out of range (less than 1 or greater than 365) results in validation error
- Network or worker timeout for thinly-traded or obscure tickers
- SEC EDGAR source data may lag real-time by days or weeks

## How this service works

Extractive data sourced from SEC EDGAR. Informational only, not investment advice. Data: SEC EDGAR (public domain). Verify at source; as-is, no warranty.

## Output

Returns structured ownership stake data extracted from SEC EDGAR filings for the requested ticker, including institutional and insider holders, share counts, percentage ownership, and filing dates, covering the specified lookback window (1–365 days, defaulting to 90).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "ticker"
     ],
     "properties": {
      "ticker": {
       "type": "string",
       "pattern": "^[A-Za-z0-9.\\-]{1,10}$",
       "description": "US stock ticker"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "default": 90,
       "maximum": 365,
       "minimum": 1
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-edgar-ownership-stakes-lookup-e48dbefc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sec-mcp-worker.stackstats.workers.dev](https://www.zero.xyz/host/sec-mcp-worker.stackstats.workers.dev/llms.txt)