Tesla investor Ross Gerber says he's planning to run for a seat on the board to revamp the company's image: 'I think it's time for Tesla to grow up'

• Ross Gerber, CEO of investment firm Gerber Kawasaki, is a Tesla shareholder.
• Gerber said he plans to run for a seat on Tesla's board in a Twitter Spaces audio conference hosted on Friday.
• "I think it's time for Tesla to grow up," Gerber said in the call.

Some investors are quiet, watching their shares in a company bob up and down with the stock market cycle. Others are more vocal, using their significant stake in a company to influence its management — they're often known as activist investors.