Fetch 13F-HR quarterly institutional holdings by parsing the SEC EDGAR information table XML. Use ticker_or_cik to look up an institution (e.g., "Vanguard Group" or its CIK) and see what it holds — or pass a company ticker/CIK to find which institutions filed 13Fs covering that period. The 13F in...
Part of the Secedgar server.
Free to start. No card required.
AI agents call secedgar_get_institutional_holdings to retrieve information from Secedgar without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though secedgar_get_institutional_holdings only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"secedgar_get_institutional_holdings": {}
}
}See the full Secedgar policy for all 10 tools.
These attack patterns abuse exactly the kind of access secedgar_get_institutional_holdings gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Fetch 13F-HR quarterly institutional holdings by parsing the SEC EDGAR information table XML. Use ticker_or_cik to look up an institution (e.g., "Vanguard Group" or its CIK) and see what it holds — or pass a company ticker/CIK to find which institutions filed 13Fs covering that period. The 13F information table lists each position: issuer name, CUSIP, shares held, market value (in whole USD), and put/call designation for options. Sub-lines for the same security are consolidated into distinct positions sorted by value by default (set consolidate=false for raw filing rows). Institutions with less than $100M in 13(f) securities are exempt and may not file. Use secedgar_search_filings with forms=["13F-HR"] for broader search.. It is categorised as a Read tool in the Secedgar MCP Server, which means it retrieves data without modifying state.
Register the Secedgar MCP server in PolicyLayer and add a rule for secedgar_get_institutional_holdings: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Secedgar. Nothing to install.
secedgar_get_institutional_holdings is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the secedgar_get_institutional_holdings rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for secedgar_get_institutional_holdings. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
secedgar_get_institutional_holdings is provided by the Secedgar MCP server (@cyanheads/secedgar-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 10 Secedgar tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.