Management tracks: Gilead, Tango, Rubius, Bicycle

Gilead Sciences Inc. (NASDAQ:GILD) said COO Kevin Young will retire, effective early 2018. Young returned to Gilead as COO in May 2016 after brief retirement during which he acted as an advisor. He was Gilead's EVP of commercial operations from 2004-14.

Cancer company Tango Therapeutics Inc. (Cambridge, Mass.) named Barbara Weber CEO. Weber has been interim CEO since Third Rock Ventures launched Tango in March. She is also a venture partner at Third Rock...