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The Daily Insight

What is the misappropriation theory?

Author

Ava Robinson

Published Feb 19, 2026

Misappropriation theory postulates that a person who uses insider information in trading securities has committed securities fraud against the information source. In the United States, a person who is guilty according to the misappropriation theory will likely be convicted of insider trading.

What is the difference between the classic and misappropriation theories of insider trading?

The main difference between the two theories has to do with the beneficiary of the fiduciary duty in question—the shareholder-counterparty in the case of the classical theory and the source of the information in the case of the misappropriation theory.

What are two main theories of insider trading?

Third, we will analyze the two key insider trading theories: the classical theory, and the misappropriation theory and look at liability of both the “tipper” and “tippee.” Finally, we will identify regulations and special rules that help prevent insider trading.

What is classical insider trading?

Under the classical theory of insider trading, corporate insiders, such as the directors, officers, and employees of a company, are prohibited from trading based on material non-public information (MNPI) that they have obtained in connection with their positions in the company.

Is misappropriation a crime?

California Penal Code 424 establishes criminal penalties for the misappropriation of funds, which is very similar under state laws for embezzlement. This crime is always a felony under California law. You can receive anywhere from two to four years in prison and fine up to $10,000.

Is theft and misappropriation the same?

Difference Between Theft and Misappropriation Mainly, theft involves actively taking something that belongs to someone else. With misappropriation, there is no direct stealing of property per se. A person wants to steal something, and then he steals it – crime committed.

Who is exempt from liability under insider trading laws?

Examples of transactions that are exempt from both reporting and liability are employer or employee contributions to the stock fund in 401(k) plans, company matches to the stock fund in a 401(k) plan and acquisitions under an employee stock purchase plan that is qualified under Section 423 of the Internal Revenue Code.

What is scienter in law?

Intent or knowledge of wrongdoing. When a person has knowledge of the wrongness of an act or event prior to committing it.

What is insider trading SEC?

“Insider trading” refers generally to buying or selling a security, in breach of a fiduciary duty or other relationship of trust and confidence, while in possession of material, nonpublic information about the security.

What is scienter evidence?

Scienter can be proved by the presentation of evidence to show the perpetrator’s state of mind. The evidence must typically show that the perpetrator acted knowingly, willfully, intentionally or in reckless disregard of the law.

What is the theory of respondeat superior?

Respondeat superior, (Latin: “that the master must answer”) in Anglo-American common law, the legal doctrine according to which an employer is responsible for the actions of its employees performed during the course of their employment.

What kind of trading is illegal?

The U.S. Securities and Exchange Commission (SEC) defines illegal insider trading as: “The buying or selling a security, in breach of a fiduciary duty or other relationship of trust and confidence, on the basis of material, nonpublic information about the security.”

How does SEC prosecute insider trading?

In a civil action, the SEC files a complaint with a US District Court and seeks a sanction or injunction against the individual that prohibits any further acts that violate securities law, plus civil monetary penalties and disgorgement of illegal profits.

What is classical wage theory?

Classical wage theory attempted to explain wages in a given period, to identify those factors which would influence the trend of wages over time and to account for the eventual level of subsistence wages in the approaching “stationary state” in which economic growth would cease.

What qualifies as misappropriation of funds?

Misappropriation of funds means the intentional, illegal use of the funds of another person for one’s own use or other unauthorized purpose.

What is the difference between the traditional theory of insider trading liability and the misappropriation theory?

In a “classical” insider trading case, the sine qua non of the violation is wrongdoing by the source of the information in disclosing it for his or her personal benefit; in a misappropriation case, the essence of the violation is wrongdoing against the source of the information by betraying an agreement or …

What are the 2 main theories of insider trading?

What are the penalties for insider trading?

The maximum prison sentence for an insider trading violation is now 20 years. The maximum criminal fine for individuals is now $5,000,000, and the maximum fine for non-natural persons (such as an entity whose securities are publicly traded) is now $25,000,000.

Theft is a crime characterized by the unlawful taking of another person’s money or property without authorization and there are many different types of crimes that can be prosecuted as federal theft, including misappropriation.

Difference Between Theft and Misappropriation Mainly, theft involves actively taking something that belongs to someone else. With misappropriation, there is no direct stealing of property per se.

What is the mosaic theory of insider trading?

The mosaic theory is a style of financial research in which the analyst uses a variety of resources to determine the value of a company, stock or other security. The mosaic theory necessitates that the analyst gathers public, non-public, and non-material information about a company.

What is a constructive insider?

A person who is not considered an insider of a publicly-traded company but may still have access to nonpublic information that is expected to remain nonpublic. For example, a lawyer working for a firm retained by a publicly-traded company may be a constructive insider.

Is the misappropriation theory applicable to securities fraud?

After more than fifteen years of applying the misappropriation theory in civil and criminal enforcement actions, courts have yet to define with precision and predictability the range of relationships that can be breached to produce the predicate fraud for securities fraud liability under the theory.

Who is guilty according to the misappropriation theory?

In the United States, a person who is guilty according to the misappropriation theory will likely be convicted of insider trading.

Can a person be convicted of insider trading under the misappropriation theory?

In the United States, a person who is guilty according to the misappropriation theory will likely be convicted of insider trading. Though not expressly forbidden U.S. securities laws, insider trading is considered to fall under the prohibition against deceptive trading practices.

When did the 4th Circuit reject the misappropriation theory?

Bryan, 58 F.3d 933 (4th Cir. 1995), the Fourth Circuit broke ranks with its sister circuits by rejecting the misappropriation theory of securities fraud liability under rule 10b-5 of the Exchange Act.