According to an announcement by MicroStrategy co-founder Micro Saylor and a public document filed with the SEC:
MicroStrategy purchased 1,045 $BTC between March 24 and April 4, 2023, (average price $28,016, value $29.3 million);
As of now, MicroStrategy holds a total of 140,000 $BTC (average price of $29,803, total value of $4 billion), and is about to break even;
MicroStrategy started buying $BTC in 2020, ranking first among global listed companies holding $BTC.