SIRI SIRIUS XM HOLDINGS INC Company Mergers 8-K Filing 2024 - Merger Announcement Sirius XM Holdings Inc. and Liberty Media announced a merger and stock exchange plan, where SiriusXM shareholders will receive shares of a new entity, SplitCo, with trading expected to start on September 10, 2024.Get access to all SEC 8-K filings of the SIRIUS XM HOLDINGS INC