<ul data-eligibleForWebStory="false">Strategy, the Bitcoin proxy firm co-founded by Michael Saylor, has halted Bitcoin purchases for the first time since late March.The company's impressive treasury currently holds 597,325 Bitcoin, valued at about $64.71 billion.Strategy's stock saw a slight decline, correlating with the drop in Bitcoin prices; however, it has risen by 38.5% in 2021.Strategy plans to potentially issue and sell up to $4.2 billion in preferred stock for future BTC acquisitions among other corporate purposes.