Jonathan Symonds, Sir John Chisholm, John Mattick, Mark Caulfield

Jonathan Symonds has been appointed as chair of Genomics England, replacing Sir John Chisholm, who stepped down this week. Symonds had been a senior non-executive director of the company since 2014.

In addition, John Mattick stepped down as CEO of Genomics England. He is temporarily replaced by Mark Caulfield, the company's chief scientist, who will serve as interim chief executive while a search for a permanent new CEO is ongoing.