A Texas health care analytics startup purchased a majority interest in Cobalt Talon LLC from Blue Cross and Blue Shield of Kansas City and the insurer's for-profit subsidiary. Health Lumen LLC bought a controlling stake in Cobalt Talon and is giving its name to the combined operation. Darren Taylor, president and COO of Cobalt Talon and now of Health Lumen, would not disclose terms of the transaction, including the percentage of interest that was sold. Health Lumen will retain Cobalt Talon's...