# x402stock Beneficial Ownership (Schedule 13D/13G) Filings

> x402stock Beneficial Ownership (Schedule 13D/13G) Filings is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).

Returns recent Schedule 13D and/or 13G SEC EDGAR filings for a given US-listed ticker, disclosing beneficial ownership stakes above 5% and activist intent

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/beneficial-ownership/:ticker?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402stock-beneficial-ownership-schedule-13d-13g-filings-72f9a7bd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oWH7n4SwIvBJEWQrhXqF-

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-beneficial-ownership-schedule-13d-13g-filings-72f9a7bd
```

Example prompt: Pull the latest SEC Schedule 13D and 13G beneficial ownership filings for TSLA from EDGAR — show me up to 10, including the reporting persons, their percent of class, and any activist intent disclosed.

## When to prefer this

Use this endpoint when you need to identify beneficial owners holding 5%+ of a US-listed company's shares, detect activist investor positions via 13D filings, or surface passive institutional stakes via 13G filings — all sourced directly from SEC EDGAR. Prefer this over general institutional holdings databases when regulatory-grade disclosed ownership at the 5% threshold is required, especially for M&A research, activist tracking, or governance analysis.

## Known failure modes

- Invalid or unknown ticker returns empty results or 404
- Limit exceeds 25 returns a validation error
- No 13D/13G filings on record returns an empty array
- EDGAR data lag may mean very recent filings are not yet indexed
- Derivatives-based holdings may show percent below 5% threshold, which can be confusing

## How this service works

Schedule 13D/13G filings — triggered when a holder crosses 5% of a class — disclosing beneficial-ownership and activist stakes in a US-listed company, from SEC EDGAR. Per filing: the reporting person, filer-reported percent of class (can be <5% if held via derivatives), shares, voting/dispositive power, and (for 13D) the activist intent. `?type=13D|13G|all`, `?limit=` max 25. From x402stock

## Output

A list of up to 25 Schedule 13D/13G filings for the requested ticker, each including the reporting person's name, the filer-reported percent of class (which may be below 5% if derivatives are involved), total shares held, voting power, dispositive power, and (for 13D filings) the activist intent statement, all sourced from SEC EDGAR.

## 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": {
      "type": {
       "enum": [
        "13D",
        "13G",
        "all"
       ],
       "type": "string",
       "default": "all"
      },
      "limit": {
       "type": "integer",
       "default": 5,
       "maximum": 25,
       "exclusiveMinimum": 0
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402stock-beneficial-ownership-schedule-13d-13g-filings-72f9a7bd/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)