What we need is the ability for people to do 1:1 forward or options trades on their existing private shares. So if you have 10,000 RSUs or options in Coinbase,

What we need is the ability for people to do 1:1 forward or options trades on their existing private shares. So if you have 10,000 RSUs or options in Coinbase, you can instead write an options contract and sell that to investors that will only exercise on IPO. The trick is making these contracts tradeable on a secondary market but I don't see how Coinbase or whoever else could regulate that, as long as there is a solid legal contract underlying it.