https://www.cnbc.com/2018/09/17/kimbal-musk-elon-working-hard-for-tesla-shareholders.html > Elon Musk is working hard for Tesla shareholders and the company's focus remains on delivering the Model 3, said Musk's brother and Tesla board member Kimbal Musk on Monday. > Kimbal Musk made the remarks during an appearance on CNBC's "Closing Bell." He said his brother is "doing a great job."