I too had a lot of respect for Cuban regarding this.
Article from Inc:
Mark Cuban Made Shark Tank Change Its Contracts After threatening not to return until an equity clause was removed from contestants' contracts, Mark Cuban finally got his way.
Just for appearing on the show, owners agree to give up 5% of their company or 2% of future royalties.
...
Cuban said the clause was removed retroactively, meaning every contestant who's appeared on the show since Season One will be relieved of the commitment. However, how that will work out logistically remains unclear.
Article from Inc:
Mark Cuban Made Shark Tank Change Its Contracts After threatening not to return until an equity clause was removed from contestants' contracts, Mark Cuban finally got his way.
Just for appearing on the show, owners agree to give up 5% of their company or 2% of future royalties.
...
Cuban said the clause was removed retroactively, meaning every contestant who's appeared on the show since Season One will be relieved of the commitment. However, how that will work out logistically remains unclear.
https://www.inc.com/will-yakowicz/mark-cuban-forces-shark-ta...