When a CEO buys shares of their own company with their personal money, that is a signal, and it is one that everyday investors can legally track and act on. According to a study published in the Pacific-Basin Finance Journal in 2025 by Washington State University researchers, insider purchases consistently correlated with stronger stock performance in the following year. When insiders bought, the stock performed better; when they sold, it performed worse.
However, the challenge for most beginners is not finding the data, but understanding what it means and knowing what to do with it next. According to the U.S. Securities and Exchange Commission, every insider stock purchase must be publicly disclosed, making that data available to any investor who knows where to look.
This beginner’s guide to insider trading walks you through what insider buying is, how to use Form 4 data, and how insider trading for investors works by using this public data to make smarter trade decisions.
Key Takeaways:
- According to a 2025 study published in the Pacific-Basin Finance Journal, stocks consistently performed better after insider purchases, making insider buying one of the most reliable signals available to retail investors.
- Legal insider trading data refers to publicly disclosed stock purchases made by company executives and directors through SEC Form 4 filings.
- Insider buying signals a real financial commitment. When an executive buys with personal funds, that is conviction, not noise.
- Raw data alone is not enough. Knowing which signals are worth acting on is what separates informed trades from guesses.
- Insider Trading Alerts filters, ranks, and delivers high-probability picks to your inbox before the next market open.
What Is Insider Buying and Why Does It Matter?
Insider buying is when a company executive, director, or major shareholder purchases shares of their own company using their personal funds. It is fully legal and must be reported to the SEC within two business days of the transaction.
When an insider puts their own money into the stock, it is a signal worth paying attention to. They understand the business from the inside, and a meaningful purchase often reflects confidence in what is ahead.
Here is a beginner’s guide to insider trading, as to why insider buying matters to you as an investor:
- It is one of the few unfiltered signals available directly to retail investors.
- It reflects real financial commitment, not just public statements or media headlines.
- Historical data show that certain types of insider purchases have preceded significant price increases.
- It is based on publicly available information, making it legal and accessible to anyone.
Not every insider purchase leads to a price move, but the right ones, filtered correctly, are among the most reliable signals available.
Who Is Considered an Insider?
An insider is anyone with access to material information about a company because of their role within it. For Form 4 reporting purposes, insiders typically include:
- CEOs, CFOs, and other C-suite executives
- Board of directors members
- Shareholders who own more than 10% of outstanding shares
These individuals must file their personal stock purchases with the SEC within two business days. Their filings are public and form the core of all insider trading data for investors who track it.
How Do Beginners Use Insider Trading Data?
Start with the source. Form 4 filings are the foundation of all insider trading data basics, and they are publicly available through the SEC’s EDGAR database. Every open market purchase made by a company insider is documented there.
Here is a beginner’s guide to insider trading, on what to look for when reviewing a filing:
- Who bought? CEO, CFO, and board-level purchases carry more weight than lower-level insiders.
- How much? A large purchase relative to their existing holdings signals a stronger conviction.
- What’s the transaction type? Look for open market purchases only. Stock options and automatic trading plans are not the same as a deliberate personal buy.
- What’s the timing? A purchase made shortly after a dip or during a quiet period can signal a stronger intent.
- What’s the pattern? Multiple insiders buying around the same time is a much stronger signal than a single transaction.
Once you know what to look for, the next challenge is filtering out the noise across hundreds of filings every day.
How Do Insider Trading Alerts Make This Easier for You?
Sorting through Form 4 filings manually is not realistic for most insider trading for investors. Insider Trading Alerts does that work before your inbox opens each morning. Here is what you receive as a subscriber:
- A daily ranked list of the insider purchases most likely to lead to next-day price movement.
- Supporting data on each pick, including historical performance context for similar insider buys.
- Alerts delivered before the next market open so you can prepare your trades in advance.
- A weekly recap of the best-performing picks.
You are not getting a raw, real-time data dump. You are getting a curated, filtered list built on tested patterns so you can focus on decisions, not on sorting filings.
Your First Step Into Insider Trading Data Basics Starts Here
This beginner’s guide to insider trading covers the foundation of what insider buying means, who qualifies as an insider, how Form 4 filings work, and how to read your first one. Knowing this puts you ahead of most retail investors who never look at this publicly available data at all.
The gap between knowing the data exists and knowing how to act on it is where most beginners get stuck. Insider Trading Alerts bridges that gap by delivering a daily ranked list of high-probability picks before the market opens, so you spend your morning making decisions, not sorting through hundreds of filings.
Ready to put insider trading data to work for you? Start your free trial at Insider Trading Alerts today.
