Assets are held in the US as a share in the company
After the IPO, you can transfer and hold your shares in your US brokerage account
Disadvantages
Fee for international money transfer
Requires passing the know-your-customer (KYC) process in the USA
Personal responsibility for tax reporting and payments
Advantages
Shares protected by the Swiss regulator
Shares are visible in the investor’s brokerage account
No need to withdraw the money
No need to pass KYC* in the USA
Taxes can be paid through the broker
Disadvantages
Brokerage fee can exceed the international money transfer fee
When the company makes it to IPO, investors can exit the deal, but they can receive only monetary payment; it is impossible to transfer shares to a brokerage account