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Sherman Antitrust Act of 1890

Federal & State Law Editorial TeamLast reviewed: April 2026

2 amendmentstracked · Side-by-side comparison of previous and amended text

October 15, 1914

Clayton Act supplemented the Sherman Act by specifying particular prohibited business practices.

Previous

Every contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce among the several States, is declared to be illegal.

Amended

Specific practices are prohibited where their effect may be to substantially lessen competition: price discrimination, tying arrangements, exclusive dealing, and mergers that tend to create monopolies. Labor unions are exempted from antitrust prosecution.

June 22, 2004

Antitrust Criminal Penalty Enhancement and Reform Act increased maximum criminal penalties.

Previous

Criminal violations of the Sherman Act are punishable by fines up to $10 million for corporations and $350,000 for individuals, with imprisonment up to 3 years.

Amended

Criminal violations are punishable by fines up to $100 million for corporations and $1 million for individuals, with imprisonment up to 10 years.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.