Here are some other stocks moving lower in pre-market trading. U.S. stock futures were lower this morning, with the Dow futures falling around 100 points on Monday. Shares of Ultragenyx Pharmaceutical Inc. RARE fell sharply in pre-market trading. Ultragenyx received a Complete Response Letter from the FDA for UX111 AAV gene therapy to treat Sanfilippo Syndrome Type A (MPS IIIA). Ultragenyx Pharmaceutical shares dipped 8% to $27.15 in the pre-market trading session. Loading... MiNK Therapeutics, Inc. INKT sh ...