get_top_institutional_holders

THE RISK

Low Risk

Why get_top_institutional_holders needs a policy

This is a read-only operation that retrieves publicly available institutional holding information from SEC filings. There are no side effects, no data modification, and no capability to execute code or trigger external actions. The blast radius of misuse is minimal, as an AI agent could only retrieve information already in the public domain through SEC filings.

From the tool's definition Tool name 'get_top_institutional_holders' and description 'Get top institutional holders and their positions' indicate data retrieval only.

Documented attack patterns abuse exactly the kind of access get_top_institutional_holders gives an agent:

POLICY

How to control get_top_institutional_holders

PolicyLayer is an MCP gateway — it sits between your AI agents and SEC MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_top_institutional_holders:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_top_institutional_holders": {}
  }
}

get_top_institutional_holders is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register SEC MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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FAQ

Questions about get_top_institutional_holders

What does the get_top_institutional_holders tool do? +

Get top institutional holders and their positions. It is categorised as a Read tool in the SEC MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_top_institutional_holders? +

Register the SEC MCP server in PolicyLayer and add a rule for get_top_institutional_holders: 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 SEC MCP. Nothing to install.

What risk level is get_top_institutional_holders? +

get_top_institutional_holders is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_top_institutional_holders? +

Yes. Add a rate_limit block to the get_top_institutional_holders 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.

How do I block get_top_institutional_holders completely? +

Set action: deny in the PolicyLayer policy for get_top_institutional_holders. 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.

What MCP server provides get_top_institutional_holders? +

get_top_institutional_holders is provided by the SEC MCP server (luisrincon23/sec-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every SEC MCP tool call.

Start from SEC MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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