In May, the Federal Trade Commission (FTC) required Hikma Pharmaceuticals PLC to divest its 23 percent interest in Unimark Remedies, Ltd. and its US marketing rights to a generic drug under manufacture by Unimark as a condition to allowing Hikma to complete its acquisition of Roxane Laboratories. The FTC was concerned that Hikma’s continued holding of a 23 percent interest in Unimark after consummation of its proposed acquisition of Roxane would create the incentive and ability for Hikma to eliminate future competition between Roxane and Hikma/Unimark in the sale of generic flecainide tablets (a drug used to treat abnormally fast heart rhythms) in the United States.

The FTC’s divestiture requirement was unusual but not unprecedented. The Horizontal Merger Guidelines identify three theories of competitive harm associated with an acquisition or holding of a small but significant minority interest in a competitor.

1. Minority ownership, and any associated rights, such as veto rights over the competing firm’s budget or strategic decisions, or representation on its board of directors, may allow the shareholder to forestall, delay or otherwise hamper the competing firm’s further development or marketing of competitive products
2. The holder of a minority interest in a competing firm has diminished incentives to compete aggressively with the competitor firm because the holder obtains an economic benefit from the success of the competing firm through its partial ownership of that competitor.
3. The holder of a minority interest in a competing firm may have access to non-public, competitively sensitive information of the competing firm, and thus may be better able to coordinate its business decisions—such as pricing, output, or research and development efforts—with those of the competing firm, thus diminishing competition.

These theories of potential antitrust harm from minority interest acquisitions are not unique to the United States; other competition agencies, including the European Union’s competition directorate, accept and apply these theories when considering the competitive impact of a firm’s actual or proposed partial ownership interest in a competitor. However, the United States applies a significantly lower threshold than the European Union (and other competition agencies) for the pre-acquisition notification of an entity’s acquisition of a minority, non-controlling interest in another firm.

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