HODL15Capital revealed on social media that the mysterious address "Mr.100", which had previously made multiple purchases of about 100 BTC in a single day, added to its holdings five times on February 27th. The amounts were: 110.94, 103.35, 101.35, 101.44, and 103.09 respectively, accumulating an additional purchase of 520 BTCs in total. This address currently holds approximately 47,712.99 BTCs worth around $2.717 billion USD.