Health Sema4|GeneDx to Participate in the 41st Annual J.P. Morgan Globe News Wire Dec 31, 2022 STAMFORD, Conn., Dec. 30, 2022 (GLOBE NEWSWIRE) -- Sema4 (Nasdaq: SMFR), a health insights company, today announced the company will participate in the 41st Annual J.P. Morgan Healthcare Conference in San Francisco. Katherine Stueland,…