- Tesla's valuation could grow between four- and fivefold between now and 2030, according to Ron Baron.
- "In the funds that I manage, I've been maxed out," the billionaire investor said Wednesday.
- Baron also disclosed that he holds a stake in SpaceX worth over $1 billion.
Ron Baron remains a huge backer of Tesla – and the billionaire investor revealed for the first time Wednesday that he also has over $1 billion riding on Elon Musk's spacecraft and satellite manufacturing firm SpaceX.