Shares of Merrimack Pharmaceuticals Inc. MACK, +212.75% skyrocketed 199.5% toward a 4 1/2-year high in morning trading Wednesday, after the France-based biopharmaceutical company Ipsen IPSEY, +3.10% I...
Shares of Merrimack Pharmaceuticals Inc. MACK, +212.75% skyrocketed 199.5% toward a 4 1/2-year high in morning trading Wednesday, after the France-based biopharmaceutical company Ipsen IPSEY, +3.10% I...