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x402stock SEC 13F-HR Institutional Fund Holdings
x402
x402stock SEC 13F-HR Institutional Fund Holdings is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-19).
Returns the latest 13F-HR institutional holdings report for a fund or investment manager by SEC CIK, listing every reported position with issuer, CUSIP, market value, share count, option type, and voting authority.
Price / call$0.03
Success—
StatusUnknown
How this service works
The latest 13F-HR institutional holdings for a fund or investment manager, looked up by its SEC CIK. Returns every reported position with issuer, CUSIP, market value, share count, option type, and voting authority, plus the portfolio's total value, sorted largest first. ?limit= positions. Sourced from SEC EDGAR. From x402stock, a market & economic data API (x402, USDC).
Output
A ranked list of every position reported in the fund's most recent 13F-HR filing, each entry including issuer name, CUSIP, market value in USD, share count, option type (if applicable), and voting authority category. The response also includes the portfolio's total reported market value, sorted largest position first. The number of positions returned can be limited via the `limit` query parameter (default 100, max 1000).
Example use cases
Hedge fund portfolio transparency check
“What are the top 50 positions in Citadel Advisors' latest 13F filing? Their SEC CIK is 0001423298 — show me each holding's issuer, market value, and share count.”
Tracking a specific fund's equity positions
“Get me the complete list of stock positions reported by ARK Investment Management in their most recent 13F-HR — their SEC CIK is 0001579982. I want to see every position with CUSIP and voting authority.”
Comparing portfolio size and concentration
“Look up the latest 13F institutional holdings for Renaissance Technologies using CIK 0001037389 and give me the top 10 holdings so I can see how concentrated their portfolio is and what the total reported value is.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/fund-holdings/:cik?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, position-level detail from a fund's official SEC 13F-HR filing, including CUSIP identifiers, option types, and voting authority breakdowns. It is the right choice when you have a SEC CIK and want the most recent complete institutional holdings snapshot sourced directly from EDGAR. Prefer this over scraping SEC's website or using higher-latency data providers when you need machine-readable, per-position data with market values sorted by size.
Side effects
- Invalid or unknown CIK returns a not-found or empty result
- CIK exists but the fund has not filed a 13F-HR (e.g. it is not a qualifying institutional manager) — returns empty or error
- Stale data if SEC EDGAR has not yet processed the most recent quarterly filing
- limit parameter out of range (≤0 or >1000) returns a validation error
- Payment failure (insufficient USDC balance or x402 protocol error) prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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