Have Musk's companies collectively made an overall profit across their lifetimes?

I was explaining to someone the other day how it was that Sam Altman could be a billionaire despite OpenAI not coming close to profitability yet, by referencing the tech industry's model of leveraging huge VC funding via the promise of future market dominance. Whilst I was doing so the question above popped into my head, and I realised I had no idea whether the richest man in the world, who is regularly hailed as a genius, has actually made a total net profit across his companies. For this question I'm only counting the relatively mature ones, namely Tesla, Space X, Twitter, Starlink, SolarCity and The Boring Company. It doesn't seem fair to include Neuralink or any others than are still very much in R&D phase.

Two of these companies - SpaceX and Starlink - are doing very well currently, and look well set for future growth, Tesla is doing OK but there are warning lights flickering, and as for the others, well....

What I'm really interested though is, at this point in history, two specific questions:
1) have the companies listed above made a collective profit or loss across their lifetimes to date?

2) how the collective profits (if any) of these companies compares to the investment that they have taken in to date, ie their collective return on investment.

I appreciate these could be seen as unfair questions to ask, as that investment was premised on significant further growth far into the future (even when, as with Tesla, those projections stopped making much sense a long time ago), but nevertheless I still think its worth asking, given that in the here and now Musk himself is using the wealth accrued from these companies to such dramatic effect.