Cuban has sold the Mavs to Adelson-Dumont Family

[F Gump]

Is there is a confirmation about minority owners selling their part? I don't remember reading that but I missed a lot of news lately. 
If not, then maybe Cuban actually only sold 61% of the Mavs (he owned 86%) and the 2.625B was paid for him?
The reports mistaken the valuation of the team and Cuban actually got the Mavs valued at 4.3B which sounds about the right price? 
https://www.forbes.com/sites/mikeozanian...0c71f209d7

Forbes valued the Mavs at 4.5B and 7th most valuable Franchise in NBA, and in most cases the NBA teams were sold higher than Forbes estimates rather than lower. 

I mean looking at the Math, Cuban and Adelson can't force minority owners to accept to sell their stake at 1B less valuation , that is 140M loss. And if Cuban cover for it from his share, that is 0.75B loss? For what? To control Basketball operations? I know he loves the Mavs but he doesn't love it as much.

Something is simply miss reported, either about minority stake, the numbers or a separate deal for something else that cover for such numbers (the whole casino stuff) 

One last question I've, I know in many countries,  25% is the exact needed amount for a "veto right" but is that the case in USA? Because if it is then it is interesting number for him to keep

Yes the minority owners sold. They own 0% now.

I have explained how the numbers worked, both early on, and now after this latest article, and it's all ending up in the same concept and numbers. The numbers are the numbers. Franchise is valued at 4.03B, but Adelson's are paying 75% of $3.5B for their 75% share. The 'Why would Cuban sell for cheaper' has already been explained too (he wants to retain basketball control, and paid extra to make that happen). 

What did the minority owners net? We don't know.

I'll speculate answers to your speculated issues. I would guess they got 15% of the 4.03B value for their shares. Yes, that would mean Cuban's extra cost being paid to retain basketball control is a bit higher than my prior calculation that glossed over the fuzziness of missing details and fine points. Keep in mind that your numbers were about 85 and about 15, which adds more fuzziness we are glossing over. 

But we don't have precise info to answer such questions.

If you believe in round numbers, maybe the franchise was formally appraised for 4.03B, the MO's were given 604,500,000 for their 15%, Cuban was given a flat 2B for his 60% (which matches the reported $2B liquidation by the A's), and that gave the A's the "approx" sale valuation of 3.5B which is how it has been reported (with those as the numbers, it would land at 3,472,665,798).

Finally let's note none of this is a real issue. Cuban sold willingly. So he was agreeable to what he had to 'pay' for retaining control of the team, even if it looks "too big" to our tastes. And the minority owners sold willingly. So they were agreeable to how their share price was determined, even if it was calculated in a different way than we would have suggested. That's all that really matters.