The IPO is expected to take place after U.S. regulators complete their review.
Redditor and YouTube personality Roaring Kitty has also been summoned.
In retaliation for restricting GME trades.
The online brokerage announced the controversial measures earlier today.
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The move could significantly affect trading price when it goes public.
Robinhood has three million users and is currently valued at $1.3 billion.
The app will launch with Bitcoin and Ethereum first.
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