Apex Hosiery Co. v. Leader

1940-05-27

Headline: Violent sit-down strike does not trigger federal antitrust law unless it aims to control the market, limiting manufacturers’ ability to use the Sherman Act to stop local union seizures that halt shipments.

Holding: The Court held that a violent local sit-down strike that temporarily stopped a manufacturer's interstate shipments did not violate the Sherman Antitrust Act because it lacked intent or effect to restrain market competition or control prices.

Real World Impact:

Limits manufacturers’ ability to sue unions under the Sherman Act for local strikes.
Requires proof that union actions aimed to control the market or prices.
Leaves state criminal and civil remedies primary for violent plant seizures.

Topics: labor strikes, antitrust law, interstate commerce, union tactics

Summary

Background

A Pennsylvania hosiery manufacturer sued a labor federation after union members seized its Philadelphia plant in a violent “sit-down” strike. The strikers wrecked machinery, occupied the plant for weeks, and refused three requests to let the company remove about 130,000 dozen finished stockings (about $800,000), about 80% of which were for out-of-state orders. A jury awarded the company damages that were trebled under the statute, but the Court of Appeals reversed and the Supreme Court took the case to decide an antitrust question.

Reasoning

The Court framed the question in simple terms: when does a disruption that stops interstate shipments fall under the Sherman Antitrust Act? The majority said the Act targets restraints that harm competition in the marketplace — for example, schemes that monopolize supply, fix prices, or otherwise damage consumers. A local strike that stops a factory’s shipments, however violent, does not fall under the Sherman Act unless its purpose or effect is to restrain market competition or control prices. The Court therefore affirmed the reversal, holding that the sit-down strike lacked the market-control purpose or effect needed to make it an antitrust violation.

Real world impact

After this ruling, manufacturers cannot automatically rely on the Sherman Act to sue unions for local strikes that interrupt shipments; they must show the union intended or achieved market control or price effects. The opinion leaves state criminal and civil remedies as the primary way to address violent seizures of plants. The Court also noted Congress has not rewritten the law to exclude or to expand unions’ antitrust exposure.

Dissents or concurrances

Chief Justice Hughes dissented, arguing the union deliberately and repeatedly blocked interstate shipments and that such direct, intentional interference should fall within the Sherman Act.