The question is can he liquidate his holdings without causing a market crash? Not just because of economics of demand and supply but because of the psychological effects on the market.
Perhaps folks more knowledgable could weigh in if a large liquidation event could happen by darkpools or some other means that wouldn't cause an oversupply "market run."
considering the cause for him needing to liquidate is known, he has major tax penalties he has to pay, exchanging them now won't cause as big of a stir as if he did it when he was anonymous and would lead to suspicion of some sort of problem with the protocol. and a run to cash in.
