Saylor signaled yesterday, and the bill was announced today.

Last week, the strategy spent about $1 billion to buy 13,927 Bitcoin, with an average price of $71,902. As of April 12, the total holdings reached 780,897 BTC, with a total cost of about $59 billion, and an average price of $75,577.
One billion dollars in a week, without hesitation.
The current average price is $75,577, and Bitcoin's current quote remains below the cost line, still showing an unrealized loss on paper. But Strategy's logic has never been about short-term profit and loss—since the beginning of the year, Bitcoin's return has been 5.6%, and Saylor uses this figure to measure the strategy's effectiveness, not dollar profit and loss.
Nearly 780k Bitcoin are pressed there, and every additional purchase raises the sunk cost and reinforces the pressure of not losing.
The more you buy, the fewer options you have to retreat. This is faith, and also chips.