Dier joining Ultragenyx as CFO; plus Magenta, Galectin, Immunicum, BrainStorm, Vaccinex   

Ultragenyx Pharmaceutical Inc. (NASDAQ:RARE) hired Mardi Dier as EVP and CFO. She will succeed Shalini Sharp, who will remain CFO until the former CFO and CBO of Portola Pharmaceuticals Inc. starts Nov. 2.

Stem cell therapy play Magenta Therapeutics Inc. (NASDAQ:MGTA) hired Lisa Olson as CSO and Kevin Johnson as SVP, head of regulatory and quality; and announced Jason Ryan will transition to a consulting role from his position as chief operating and financial officer as the company searcher for a successor. Olson was VP of immunology discovery and site head at AbbVie Inc. (NYSE:ABBV) and Johnson was SVP of regulatory Affairs, quality and pharmacovigilance at Imara Inc. (NASDAQ:IMRA)...