I'm probably missing some points but just ask and I will do my best to answer...
Where are the monthly dividends coming from? Here I'd like to see some solid proof.
Where is the IPO BTC wallet? This is important to check that it is not going towards buying your own IPO over and over.
When is the IPO ending?
1. A mix of income from what businesses are operational so far and Marks personal assets (so is my understanding I am not in accounting). Solid proof of what?
2. There is no such thing since this is a private investment to private investors most of which is not done with BTC. We gain nothing by buying our, own that's silly.
3. When the remaining shares are sold.