Large holders of the flagship cryptocurrency Bitcoin ($BTC) accumulated a total o $4.4 billion worth of the cryptocurrency when it started to rise from the $16,000 level seen last month to its current $21,000 mark.

According to data from on-chain analytics firm Santiment, Bitcoin shark addresses holding between 10 and 100 $BTC were the first to start accumulating, adding 105,600 coins, worth over $2.2 billion, in just 10 weeks and halting $BTC’s decline at $16,000.