iRhythm Holdings, Inc. announced that the expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act occurred on September 18, 2026, for its proposed acquisition of Vital Connect, Inc. The transaction involves iRhythm Technologies, a wholly owned subsidiary, merging Merger Sub with Target, which will survive as a wholly owned subsidiary. The acquisition is anticipated to close in early October 2026, subject to customary closing conditions. This development removes the primary regulatory hurdle for the strategic expansion into adjacent healthcare markets. iRhythm Holdings operates in the medical technology industry and develops cardiac monitoring solutions.