The Sherman Anti-trust Act has been amended several times over the years. This version includes amendments passed in 2004. Section 2. Every person who shall monopolize, or attempt to monopolize, or combine or conspire with any other person or persons, to monopolize any part of the trade or commerce among the several States, or with foreign nations, shall be deemed guilty of a felony, and, on conviction thereof, shall be punished by fine not exceeding $100,000,000 if a corporation, or, if any other person, $1,000,000, or by imprisonment not exceeding 10 years, or by both said punishments, in the discretion of the court.
–Sherman Antitrust Act (1890)
Why are corporations charged a larger fine than individuals are?
Corporations are usually larger and would require a steeper punishment for it to be effective.
Individuals wrote the act, so they made the punishment less for themselves.
Corporations are more likely than individuals to attempt to monopolize.
Individuals could not afford as large a fine as corporations could.