Sure they do, it's not a secret. I don't think for them it's a priority, but still do it.
Absolutely, they are sure to see the investment opportunity in bitcoin like Mike Novogratz that said he has about 10% in bitcoin.
Well, not just invest to Bitcoin, some Billionaires investing to Altcoin as Bill Gates with Factom, Putin with Ethereum ... They see cryptocurrency market can growth more in future and very potential, can make a huge profit if holding long-term 5-10 years
Wow , I only heard it now about Bill gates invest on Factom and it surprise me and realize how poor peoples most of them were to late to invest because they want proofs and they didn't recognize that billionaire already invested . They follow the market and technology unlike the old people who doesnt believe on it.