New CMO, CSO at Black Diamond

Karsten Witt became SVP of clinical development and interim CMO at Black Diamond Therapeutics Inc. (NASDAQ:BDTX), succeeding Rachel Humphrey. Elizabeth Buck, the company’s co-founder and EVP of discovery and translational sciences, will become CSO on Aug. 11, replacing Christopher Roberts, who has resigned to take a CEO role at another company.

Adaptive Biotechnologies Corp. (NASDAQ:ADPT) hired Nitin Sood as chief commercial officer, a newly created position at the immune medicine platform company. Sood was SVP of product development at Guardant Health Inc. (NASDAQ:GH)...