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SEC Stock Signals + Le Chat: a new 8-K or insider filing explained in plain words, from Europe

SEC Stock Signals reads real 8-K and Form 4 filings on SEC EDGAR and links each one. Le Chat, Mistral's assistant, can explain what a filing says in everyday language. Here is what Mistral documents for custom connectors, and what works today if you cannot add one.

AgentStructure.AI5 min read

Works with

  • Muse.ai
  • Instinct
  • Grok
  • Claude
  • ChatGPT
  • Any MCP-capable assistant
Following a U.S. company from Europe? Paste a new 8-K or insider filing alert into Le Chat and ask what it says in plain words.
Example alert. Names and numbers are illustrative.

Key takeaways

The short version.

  • SEC Stock Signals reports real 8-K and Form 4 filings from SEC EDGAR, each with a link to the original, so you can check any explanation against the source.
  • Mistral's documentation says custom MCP connectors in Le Chat are an administrator-only feature, and that on the Free, Pro and Student plans the account owner is the administrator.
  • The same documentation lists three authentication options: none, a bearer token or basic authentication, and OAuth 2.1. The app's address needs no key, which matches the no-authentication option.
  • If you cannot add a connector, paste the filing alert and its EDGAR link into Le Chat and ask for a plain-language explanation. That works today.
  • This is not an official Le Chat integration, and neither the app nor Le Chat gives investment advice.

Who it is for

Who is this pairing for?

  • It is for people who follow U.S.

  • SEC Stock Signals works from real filings on SEC EDGAR, mainly 8-Ks (the form companies use to report significant events) and Form 4s…

  • The app finds and reports the filings.

It is for people who follow U.S. public companies from outside the United States: European holders of American shares, students of the market, and anyone who finds an SEC filing hard to read. A filing arrives in U.S. legal English, often when your own working day is ending, and a plain explanation helps you decide whether it deserves your time.

SEC Stock Signals works from real filings on SEC EDGAR, mainly 8-Ks (the form companies use to report significant events) and Form 4s (reports of purchases and sales by insiders). Le Chat is the AI assistant from Mistral, a company based in France.

The app finds and reports the filings. Le Chat explains them. You read the original and make your own decisions.

Use cases

4 ways people use SEC Stock Signals + Le Chat.

  1. 8-K explained

    1. Explain a new 8-K in plain words

    An 8-K can report anything from a routine contract to a change of chief executive. Give Le Chat the alert and ask what happened, who is affected and which section of the original to read first.

    Every filing links back to EDGAR, so you can open the source and compare it with the explanation.

  2. Form 4 explained

    2. Make sense of an insider filing

    A Form 4 reports a purchase or sale by a company insider. The table of codes and share counts is dense. Ask Le Chat to say in two sentences what the filing reports, and to explain any code you do not recognise.

    A single insider transaction can have many reasons. Ask Le Chat to list what the filing states and to avoid guessing at motives.

  3. Routine or notable

    3. Tell a routine filing from a notable one

    The Premium tools rank recent 8-Ks by attention and flag chief executive and chief financial officer changes. Ranking by attention points you to what to read first. It is not a verdict on whether the news is good or bad.

    Ask Le Chat to put the flagged filings first and explain each in everyday language.

  4. Past events

    4. Read the history before you form a view

    The free tools include event-study results, integrity checks and 20-day results for each family of 8-K events. They describe what happened after similar filings in the past.

    Ask Le Chat to explain the figures and to say plainly that a historical average is not a prediction. The numbers describe the past, and they do not say what a filing will do next.

On your phone

What the alerts look like.

Illustrative

Figure 1

An example exchange. The company and filing are made up.

Example alerts. Every name, number and event shown is illustrative.

How to

How do I use SEC Stock Signals with Le Chat?

  1. Step 1

    Start with what works today. Get the filing alert and its EDGAR link from SEC Stock Signals, paste both into a chat at [chat.mistral.ai](https://chat.mistral.ai/) and ask for a plain-language explanation.

  2. Step 2

    To try a live connection, the app's address is https://secstocksignals.com/mcp. The site says no API key and no sign-up form are needed.

  3. Step 3

    In Le Chat, per Mistral's [MCP connectors documentation](https://docs.mistral.ai/le-chat/knowledge-integrations/connectors/mcp-connectors), open the Connectors page, click Add Connector and choose the Custom MCP Connector tab.

  4. Step 4

    Enter a unique connector name without spaces or special characters, then the server address, and click Connect. Choose no authentication, as the app needs no key.

Mistral's documentation says adding a custom connector is an administrator-only feature, and that its server must be reachable over HTTPS. Only connect servers you trust. Whether this works with the app's address has not been tested, and rules for other plans were not confirmed. There is no official partnership, listing or built-in integration between SEC Stock Signals and Mistral.

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FAQ

Frequently asked questions.

Is SEC Stock Signals an official Le Chat integration?

No. There is no partnership, listing or built-in integration. Mistral documents custom MCP connectors for administrators, and any connection is one you add yourself. The app is an AgentStructure.AI app.

Can I add it to Le Chat myself?

Mistral's documentation says custom connectors are administrator-only. On the Free, Pro and Student plans, the account owner is the administrator. For other plans, check with your own administrator.

What if I cannot add a connector?

Paste the filing alert and its EDGAR link into Le Chat and ask for a plain-language explanation. That needs no setup. Open the original filing before you rely on any summary.

Will I get automatic alerts in Le Chat?

Not yet. The site says automatic watchlist alerts are being tested and are not open for sign-up, and text alerts are coming soon. Today you ask what is new, or paste an alert.

Does it tell me to buy or sell?

No. It reports filings and past results and never says buy, sell or hold. A historical average is not a prediction, and this post is not investment advice.

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