Prometheus Biosciences, Inc. completed the previously announced merger of Splash Merger Sub, Inc. (Merger Sub) and a wholly owned subsidiary of Merck & Co., Inc. (Merck), with and into Prometheus (the Merger), with Prometheus surviving the Merger as a wholly owned subsidiary of Merck. In connection with the Merger, at the Effective Time, Keith W. Marshall, CFO ceased to be executive officers of Prometheus. In accordance with the terms of the Merger Agreement, at the Effective Time, the officers of Merger Sub became the officers of Prometheus.