• DATA
  • CLEANUP
  • VALIDATION
  • HUMAN

How to convert stock tickers to CIK numbers with your AI

Connect the SEC EDGAR Companies MCP to your agent. Once it's live, you can turn any list of symbols into CIK numbers.

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Short answer

How do I turn stock tickers into CIK numbers using AI?

Your agent uses the lookup_ticker tool to pull CIK identifiers from the SEC EDGAR database for each symbol you provide. You'll get a clean list of IDs ready for your data processing. Here is how it works.

The conversion outcomes

The results of the conversion

This is what happens after your AI processes the tickers.

DATA

Mapped CIK identifiers

The AI finds the exact CIK for every ticker in your list. You get a direct link between the symbol and the SEC ID.

CLEANUP

Structured data lists

The agent organizes the results into a format you can use. You can move this data straight into a spreadsheet or database.

VALIDATION

Verified company matches

The tool checks the SEC database to ensure the ticker exists. This helps catch typos or delisted symbols early.

HUMAN

Manual review required

You'll need to check cases where a ticker maps to multiple entities. The AI flags these so you can make the final call.

The workflow

What your AI does when the list arrives.

The AI handles the database queries so you don't have to.

  1. Parse input

    The agent reads your text or file to find all the stock symbols you want to convert.

    lookup_ticker

  2. Query SEC

    The AI uses the lookup_ticker tool to search the EDGAR database for each symbol.

    lookup_ticker

  3. Retrieve CIK

    The agent pulls the specific CIK number from the SEC response for every match.

    lookup_ticker

  4. Format output

    The AI builds a final list pairing each ticker with its corresponding CIK.

    lookup_ticker

Try it

Copy these to start.

Use these prompts to begin the conversion.

Starting points

Swap out the bracketed text for your actual ticker symbols or file names.

U.S. Securities and Exchange Commission (SEC) Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_g8dMblFFyvEkOpaaHMt9CdX5kmLp9BcRxUiDaB2d/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — U.S. Securities and Exchange Commission (SEC) capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "sec-edgar-companies-ticker-lookup-company-search-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_g8dMblFFyvEkOpaaHMt9CdX5kmLp9BcRxUiDaB2d/mcp"
    }
  }
}
Copy into chat04

  • Convert this list of tickers to CIK numbers: [AAPL, MSFT, TSLA]

  • Find the CIK for every ticker in my spreadsheet named [tickers.csv]

  • Use the SEC EDGAR tool to give me the CIKs for these symbols: [AMD, NVDA, INTC]

  • Create a table with the Ticker and CIK for [GOOGL, META, AMZN]

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Start here

Connect SEC EDGAR Companies once, then ask.

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FAQ

How this task behaves

  • 01

    Can the AI convert symbols to CIKs automatically?

    Yes. Once the MCP is connected, your agent uses the lookup_ticker tool to perform the conversion.

  • 02

    Does the AI update the SEC database?

    No. The AI only reads data from the SEC EDGAR system. It cannot change or add any regulatory records.

  • 03

    What happens if a ticker is invalid?

    The AI will report that the ticker could not be found. You'll have to verify the symbol yourself.

  • 04

    Can the AI delete my files?

    No. The AI only reads the data you provide. It has no ability to delete or modify your local files.

  • 05

    Can I use company names instead of tickers?

    Yes, the agent can search for company information using names if you provide them.

  • More questions about SEC EDGAR Companies? The Connector page answers them. See everything the SEC EDGAR Companies Connector can do

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