
Dirks Test
The Dirks test (also referred to as the personal benefits test) is a standard used by the Securities and Exchange Commission (SEC) to determine whether someone who receives and acts on insider information (a tippee) is guilty of insider trading. The Dirks test (also referred to as the personal benefits test) is a standard used by the Securities and Exchange Commission (SEC) to determine whether someone who receives and acts on insider information (a tippee) is guilty of insider trading. The Dirks test looks for two criteria: 1) whether the individual breached the company's trust (broke rules of confidentiality by disclosing material nonpublic information) and 2) whether the individual did so knowingly. Tippees can be found guilty of insider trading if they knew or should have known that the tipper had committed a breach of fiduciary duty. The Supreme Court ruled that a tipee may assume the insider's fiduciary duty to a corporation's shareholders not to trade on material nonpublic information if the tipee knows or should have known of the insider's breach. The Supreme Court ruled that a tipee assumes an insider's fiduciary duty to not trade on material nonpublic information if they knew or should have known of the insider's breach.

What Is the Dirks Test?
The Dirks test (also referred to as the personal benefits test) is a standard used by the Securities and Exchange Commission (SEC) to determine whether someone who receives and acts on insider information (a tippee) is guilty of insider trading. The Dirks test looks for two criteria: 1) whether the individual breached the company's trust (broke rules of confidentiality by disclosing material nonpublic information) and 2) whether the individual did so knowingly.
Tippees can be found guilty of insider trading if they knew or should have known that the tipper had committed a breach of fiduciary duty. The Dirks test originated from a 1983 Supreme Court ruling which stated that the breach of duty must result in a personal benefit for the insider. The Court provided guidance to determine what constitutes a personal benefit, creating a test that treats tipping differently depending on whether the tips are given to relatives and friends versus strangers.





Understanding the Dirks Test
The Dirks test is named after the 1983 Supreme Court case Dirks v. SEC. The Supreme Court ruling reversed a lower court's affirmation of the SEC's censure of Raymond Dirks, a securities analyst, who had acted as a whistleblower in a case involving fraud at a high-profile insurance company.
The Dirks test established the conditions under which tippees can be held liable for insider trading. An individual does not actually have to engage in a trade to be guilty of illegal insider trading. Merely facilitating an inside trade by disclosing material nonpublic information about a company is sufficient to be liable for illegal insider trading.
Material Nonpublic Information
Examples of material nonpublic information include:
This type of information can greatly impact a company's share price, causing it to swing up or down over several trading sessions. Some traders attempt to take advantage of this advanced knowledge by buying or selling a security before the information is made public.
It is not necessary to be a manager or employee of the company to be guilty of illegal insider trading. Friends and family members who have access to such information and disclose it can also be charged with committing an illegal act.
SEC rules require company insiders to disclose their transactions. They must disclose initial ownership, purchases and sales; and transaction prices.
Special Considerations
A key result of the Dirks v. SEC decision was that it established a blueprint for evaluating insider trading. The Supreme Court ruled that a tipee may assume the insider's fiduciary duty to a corporation's shareholders not to trade on material nonpublic information if the tipee knows or should have known of the insider's breach.
The Court ruled that there is no breach unless the insider tips for their own personal benefit, rather than the tipee's personal benefit. There are several things that can constitute a personal benefit for the tipper. This includes providing the tip in return for cash, reciprocal information, or a reputational benefit that the tipper anticipates will lead to future earnings. The Court ruled that tips to trading relatives or friends are considered gifts of confidential information and also constitute a personal benefit to the insider.
The Dirks test also provides protection for those whose job it is to ferret out and analyze information provided by corporate insiders. This includes market and financial analysts who in the course of performing their duties receive a tip that enables them to expose a fraud. In this case, the tippee does not personally benefit and would not be liable for insider trading.
Real World Example of the Dirks Test
In subsequent court cases, U.S. v. Newman and U.S. v. Salman, the focus on the definition of "personal benefit" provided clarification of the Dirks test. Mathew Martoma, a former portfolio manager at a large hedge fund, was convicted in 2014 for insider trading involving shares of a biotechnology company conducting pivotal trials of an Alzheimer's drug.
His lawyers appealed the conviction on the grounds that the tipper, a prominent doctor and researcher at the University of Michigan, did not receive personal benefit for sharing material nonpublic data with Martoma. However, the federal appeals court upheld the conviction in 2017, citing that at least one tipper received a personal benefit from disclosing inside information in the form of $70,000 in consulting fees. Therefore, the Dirks standard was met and the appeals court affirmed the 2014 conviction.
Related terms:
Hedge Fund
A hedge fund is an actively managed investment pool whose managers may use risky or esoteric investment choices in search of outsized returns. read more
Insider Trading Sanctions Act of 1984
The Insider Trading Sanctions Act of 1984 is a piece of federal legislation that allows the SEC to seek civil penalties for insider trading. read more
Insider
An insider is a director, senior officer, or any person or entity of a company that beneficially owns more than 10% of a company's voting shares. read more
Insider Trading
Insider trading is using material nonpublic information to trade stocks and is illegal unless that information is public or not material. read more
Material Nonpublic Information
Material nonpublic information is data relating to a company that has not been made public but could have an impact on its share price. read more
Misappropriation Theory
Misappropriation theory postulates that anyone using insider information to trade securities has committed fraud against the information source. read more
Securities and Exchange Commission (SEC)
The Securities and Exchange Commission (SEC) is a U.S. government agency created by Congress to regulate the securities markets and protect investors. read more
Security Analyst
A security analyst is a financial professional who studies various industries and companies, provides research and valuation reports, and makes buy, sell, or hold recommendations. read more
Shareholder
A shareholder is any person, company, or institution that owns at least one share in a company. read more
Stare Decisis
Stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar case. read more