MicroStrategy Inc. said it didn’t buy any Bitcoin in the prior week, halting a string of 12 consecutive weekly purchases that began in late October.The purchases had coincided with a record-breaking rally in the digital currency that had been driven in part by Donald Trump’s embrace of digital assets and the subsequent industry-friendly agenda in the first weeks of his second presidential administration. MicroStrategy bought more than $20 billion in Bitcoin during the period, increasing its over...