Learn About Insider Trading Data
Corporate insiders — executives, directors, and major shareholders — must publicly disclose their stock transactions with the SEC. These guides explain how to find, read, and interpret that data to inform your investment research.
What Is a Form 4 Filing?
A complete guide to SEC Form 4 — who files it, what information it contains, and why it's one of the most closely watched regulatory disclosures on Wall Street.
Level 1: Fundamentals
What Form 4 filings are and how the SEC disclosure system works. Start here.
How to Read SEC Insider Trading Data
A practical walkthrough of transaction codes, derivative vs. non-derivative transactions, share ownership columns, and the patterns that matter most to investors.
Form 4 Filing Deadlines & What Late Filings Reveal
SEC Forms 3, 4, and 5 each have their own deadline. Learn the exact filing windows, what happens when insiders file late, and why delinquent filings are a signal of their own.
SEC Form 4 Transaction Codes: A Complete Reference
Every Form 4 transaction carries a single-letter code — P, S, A, M, F, G and more. A full reference to what each code means and which ones actually signal insider conviction.
Legal vs. Illegal Insider Trading — What's the Difference?
Executives buy and sell their own stock legally every day. Learn what separates lawful, disclosed insider trading from the illegal kind — it all comes down to material non-public information.
Level 2: Decoding Insider Signals
Turn raw filings into a read on insider conviction.
Insider Buying vs. Insider Selling — What It Means
Not all insider transactions carry the same signal. Learn why insider purchases are considered more informative than sales, and how to interpret both correctly.
CEO vs. CFO Stock Purchases — Which Signal Matters More?
The CEO sets strategy; the CFO owns the numbers. When both are buying, that's a compelling signal. But when only one is buying, which role's conviction should you weight higher?
What Is a 10b5-1 Plan? Scheduled Insider Sales Explained
Many large insider sales were scheduled months in advance under a 10b5-1 plan. Learn how these plans work, why they mute the signal in a Form 4, and how the SEC's 2023 reforms changed them.
Level 3: Advanced Strategies & Tools
Patterns, edge cases, and putting the data to work.
Why Tracking 10% Owners Can Beat the Market
Large shareholders who cross the 10% ownership threshold file a different category of disclosures. Here's why their trades carry outsized informational weight.
Cluster Buying: Why Multiple Insiders Buying at Once Matters
One insider buy is interesting; several insiders buying the same stock within days is one of the most reliable signals in insider data. How to spot and interpret cluster buys.
Use Insider Trading Data in Claude, Cursor & Other AI Tools
Connect the Insider Trades MCP server to Claude, ChatGPT, Cursor, or any AI assistant and ask for real-time SEC Form 4 insider data in plain English.
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