On May 15, Binance CEO Changpeng Zhao (widely known as CZ) created a tweet thread in which he attempted to speak nonchalantly about questions that had "just occurred to [him]" about whether Binance held any UST. In the thread he attempted to distance himself from decisions or knowledge around such holdings, speaking cavalierly about how "we probably do have some". Former FBI agent James Harris wrote an interesting analysis of the thread, concluding, "If people weren't worried before, they will be now. If investigators weren't suspicious before, they should be now."
The following day, CZ tweeted, "Binance received 15,000,000 LUNA (at peak worth $1.6 billion USD, now not much) as part of the original ($3m) invest. 560x return at peak." In this tweet, "not much" glossed over the fact that these LUNA, obtained in return for a $3 million investment and at one point nominally worth $1.6 billion, are now worth $2,900.
He also wrote that Binance had 12,000,000 UST—worth $12 million when UST was properly pegged, and now worth $1.16 million (assuming liquidity exists to sell it at all).