Send the following on WhatsApp
Continue to Chathttps://www.marketscreener.com/quote/stock/MERRIMACK-PHARMACEUTICALS-37705478/news/Merrimack-Pharmaceuticals-Inc-NasdaqGM-MACK-added-to-Russell-2500-Index-44218591/?utm_source=whatsapp&utm_medium=social&utm_campaign=share