When and at what price did MicroStrategy buy BTC?

There were many purchases, but here are the largest of them:

The company first bought Bitcoin for $250 million at a price of 11,000 per BTC...

→$650 million at a price of 21 thousand per BTC;

→$700 million at a price of $21 thousand per BTC;

→1 billion at a price of 52 thousand per BTC;

→489 million at a price of 37 thousand per BTC;

→$242 million at a price of 48 thousand per BTC;

→$821 million at $68 thousand per BTC;

→$623 million at a price of 67 thousand per BTC;

→$786 million at a price of 65 thousand per BTC;

→$1.1 billion at 60k per BTC.

#btc