Insider Trading
Definition
Insider trading is the illegal practice of buying or selling a security while in possession of material nonpublic information about it.
Detailed Explanation
Two elements have to be present for a trade to cross the line. The information has to be material (meaning a reasonable investor would consider it significant in deciding whether to buy or sell the stock) and it has to be nonpublic, meaning it hasn't been released to the market.
Trading on a hunch drawn from a company's financial statements is research. Trading on next quarter's earnings figure before it's announced is not. The prohibition comes from Rule 10b-5 under Section 10(b) of the Securities Exchange Act of 1934, which the SEC and federal courts have built the modern insider trading framework on top of.
Not all insider trading is illegal, and this is where most confusion lives. Executives, directors, and employees buy and sell their own company's stock constantly, and it's perfectly legal when they aren't sitting on inside information. Corporate insiders disclose those trades to the SEC on Form 4, generally within two business days. Many schedule sales in advance through a Rule 10b5-1 plan, which provides an affirmative defense if the plan was adopted in good faith while the insider had no material nonpublic information. Since February 2023, directors and officers must also wait out a cooling-off period of 90 days, or two business days after the company files results for the quarter in which the plan was adopted, capped at 120 days.
Liability reaches further than corporate officers. Under the classical theory, an insider breaches a duty owed to the company's shareholders. Under the misappropriation theory, endorsed by the Supreme Court in United States v. O'Hagan (1997), an outsider is liable for trading on confidential information taken from a source who trusted them, which is how lawyers, bankers, consultants, printers, and IT contractors end up as defendants.
Tippers and tippees can both be liable when the tipper breached a duty for personal benefit and the recipient knew or should have known.
Penalties are steep. Section 32(a) of the Exchange Act, as amended by the Sarbanes-Oxley Act of 2002, allows up to 20 years in prison and criminal fines up to $5 million for individuals and $25 million for entities. On the civil side, the SEC can seek disgorgement plus a penalty of up to three times the profit gained or loss avoided.
Example
Consider an employee in a company's finance department who learns internally that the firm will badly miss its quarterly earnings target. She sells her shares two days before the announcement and avoids a 20% drop. She never told anyone, but she still traded on material nonpublic information obtained through her job. This is textbook insider trading according to the SEC.
Even if she had instead tipped her brother and he traded, they could face liability.
Key Articles Related To Insider Trading
Related Terms
Material Nonpublic Information: Information not yet released to the market that a reasonable investor would consider significant in deciding whether to buy or sell a security.
Rule 10b5-1 Plan: A pre-arranged trading schedule that gives corporate insiders an affirmative defense against insider trading claims when adopted in good faith without inside information.
Tippee: Someone who receives inside information from an insider and can be held liable for trading on it if they knew or should have known the tipper breached a duty.
Form 4: The SEC filing corporate insiders use to report purchases and sales of their own company's stock, generally due within two business days of the trade.
Disgorgement: A remedy requiring a violator to surrender profits gained or losses avoided, separate from any civil penalty or criminal fine.
FAQs
Is all insider trading illegal?
No. Corporate insiders legally buy and sell their own company's shares all the time and report those trades to the SEC. It becomes illegal when the trade is made on material nonpublic information in breach of a duty of trust or confidence.
What counts as material nonpublic information?
Anything a reasonable investor would weigh in a buy-or-sell decision that hasn't been made public — unreleased earnings, a pending merger or acquisition, clinical trial results, the loss of a major customer, an unannounced executive departure, or a coming regulatory action.
What are the penalties for insider trading?
Criminal penalties run up to 20 years in prison and fines up to $5 million for individuals ($25 million for entities). The SEC can separately seek disgorgement of the profit plus a civil penalty of up to three times the profit gained or loss avoided, along with officer-and-director bars.
Can I get in trouble for trading on a stock tip from a friend?
Potentially, yes. If the person who gave you the tip breached a duty of confidence for some personal benefit, and you knew or had reason to know that, you can be liable as a tippee. The same applies to information passed along by a financial advisor, attorney, or company employee.
How can I see when insiders buy or sell their company's stock?
Insiders file Form 4 with the SEC, generally within two business days of the transaction. Those filings are free and searchable on the SEC's EDGAR database.
Does insider trading law apply to members of Congress?
Yes. The STOCK Act of 2012 confirmed that members of Congress and federal employees are not exempt from insider trading prohibitions and imposed periodic trade disclosure requirements on them.