Synthetic biology and genomics company Twist Bioscience Corp. has appointed Dennis Cho as senior vice president, general counsel and chief ethics and compliance officer.

Cho brings more than 25 years of corporate legal experience, most of which has come in the biotech industry. He was most recently assistant general counsel at CytomX Therapeutics, where he was department head for all deals and contracts as well as day-to-day lead on compliance and other legal subject matters.

Prior to CytomX, Cho was the lead transactional attorney on antibody-related licenses and collaborations, major commercial agreements, and combination trials at Seattle Genetics. Before that, he spent nine years at Celgene as the lead West Coast attorney supervising more than 100 business transactions. Earlier, he served as general counsel for four private and public companies.