MerckMerck (NYSE:MRK) announced today that it completed the acquisition of vaccine and immune-modulation therapy developer Themis for an undisclosed amount.

In connection with the acquisition, the U.S. Federal Trade Commission granted early termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, while Merck gained merger control from the Austrian Federal Competition Authority, making Themis now a wholly-owned subsidiary of Merck.

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