[UPDATED – 16:45Z] Twitter CEO Jack Dorsey To Step Down, Says Source

Twitter Chief Executive Officer Jack Dorsey will step down from his role and a successor has been lined up, a person familiar with the matter reported. The company’s board has been preparing for Dorsey’s departure since last year, the source said. [UPDATE – 16:45Z] Parag Agrawal will replace Dorsey as CEO Parag Agrawal, the company’s chief technology officer, is taking over as CEO effective immediately. Agrawal, who’s served as CTO since 2017, has been with Twitter for more than a decade. He had been in charge of strategy involving artificial intelligence and machine learning and he led projects to make…