If Tesla (EM) did not sell all that BTC, then it would be more accurate to say that it is an unrealized profit - and EM has stated that it has no intention of selling that BTC, although this may change at any time. In addition, Tesla appears to have bought a total of 46 000 BTC at an average price of $32 610, but sold 10%, so the total amount of BTC is now 41 400 currently worth 2.375 billion.
In Q4 of last year, Musk purchased $1.5 billion in Bitcoin in one of the most adventurous moves ever undertaken by a corporate treasury. CFO Zach Kirkhorn praised the gambit as "a good place to place some of our cash that's not being used, and get a good return on that." By my math, Tesla bought 46,000 coins at an average price of $32,610. In mid-March, it sold 10% of its holdings, around 4,100 coins, at an average price of almost $60,000, booking a profit of $128 million (reduced to $101 million by an "impairment" charge).