CytomX Therapeutics, Inc. (NASDAQ:CTMX) is one of the 10 Best US Penny Stocks to Buy. On December 5, Piper Sandler reaffirmed its Buy rating on CytomX Therapeutics, Inc. (NASDAQ:CTMX) with a price target of $6.50. Also on December 5, H.C. Wainwright reiterated its Buy rating on CytomX Therapeutics, Inc. (NASDAQ:CTMX) with a price target of$10. This update comes as the company approaches an important data readout for its CX-2051 therapy in colorectal cancer. H.C. Wainwright outlined specific performance b ...