# FilingsPulse 13F Institutional Ownership Analysis

> FilingsPulse 13F Institutional Ownership Analysis is a paid API for AI agents from filingspulse.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Analyzes 13F filings to surface institutional ownership data, fund flows, major holders, and quarter-over-quarter smart-money positioning shifts for a given stock or fund.

## Facts

- Endpoint: GET https://filingspulse.vercel.app/api/filings/ownership
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/filingspulse-13f-institutional-ownership-analysis-a12825a0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2IMNvvfoOUE6AioissUVe

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 filingspulse-13f-institutional-ownership-analysis-a12825a0
```

Example prompt: Show me the 13F institutional ownership breakdown for Nvidia — which funds are the biggest holders, and how has their positioning shifted compared to last quarter?

## When to prefer this

Use this endpoint when you need to understand who the major institutional shareholders of a publicly traded company are, how their positions have changed quarter over quarter, and what smart-money sentiment looks like — particularly for equity research, due diligence, or investment thesis building. Prefer this over general SEC search endpoints when the specific question is about 13F ownership concentration and fund flow dynamics rather than textual filing content.

## Known failure modes

- Unknown or invalid ticker symbol returns an error or empty result
- Company has no 13F filing history (e.g. private company) returns no data
- Requested quarter not yet available due to SEC reporting lag (45-day delay after quarter end)
- Rate limiting or payment failure returns a 402 or 429 error
- SEC EDGAR data temporarily unavailable causes fetch failure

## How this service works

Institutional holdings / 13F ownership analysis for any US-listed company — fund flows, major holders, hedge-fund positions, and smart-money positioning shifts quarter over quarter. From EDGAR SC 13D/G filings plus live research, for investing and equity-research agents.

## Output

Returns structured institutional ownership data parsed from 13F filings, including a ranked list of major holders, their ownership percentages and share counts, net quarter-over-quarter changes in position size, fund flow direction (buy/sell/hold), and smart-money sentiment indicators derived from aggregated filing data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "lang": {
   "type": "string",
   "description": "lang"
  },
  "ticker": {
   "type": "string",
   "description": "ticker"
  },
  "company": {
   "type": "string",
   "description": "company"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/filingspulse-13f-institutional-ownership-analysis-a12825a0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from filingspulse.vercel.app](https://www.zero.xyz/host/filingspulse.vercel.app/llms.txt)