Rigel to Present at the Jefferies Global Healthcare Conference in LondonRigel to Present at the Jefferies Global Healthcare Conference in London Rigel to Present at the Jefferies Global Healthcare Conference in LondonPR NewswireSOUTH SAN FRANCISCO, Calif., Nov. 10, 2026 SOUTH SAN FRANCISCO, Calif., Nov. 10, 2026 /PRNewswire/ -- Rigel Pharmaceuticals,Inc. (Nasdaq...