Block is a Delaware corporation with its principal offices at 1955 Broadway in Oakland, California, and commission file number 001-37622. Its Class A common stock trades on the New York Stock Exchange under the symbol XYZ. The company was called Square, Inc. until 10 December 2021, when it filed a certificate of amendment in Delaware changing the corporate name to Block, Inc.
It dates itself precisely. "We started Block with the Square ecosystem in February 2009 to enable businesses to accept card payments," the annual report for the year ended 31 December 2025 says. Payments are still most of the business, and Square and Cash App are the two reportable segments.
Bitcoin is a reported revenue category rather than a side project. For 2025 Block reported total net revenue of 8.50 billion, down 18 per cent on 2024. Most of that is Cash App customers buying and selling bitcoin, reported gross, so the figure is far larger than the margin behind it: bitcoin ecosystem costs were $8.08 billion in the same year.
Three parts of it matter to people outside the company. Bitkey is a self-custody wallet that combines a mobile app, a hardware device and recovery options. Proto designs mining systems and open-source firmware, which puts a listed company into a business that had been concentrated in a handful of manufacturers. Spiral is described in the filing as "an independent team focused on contributing to bitcoin open source work", and it pays developers who work on Bitcoin software without those developers reporting into a product line.
Block also holds bitcoin on its own balance sheet. As of 31 December 2025 it held approximately 8,883 bitcoin for long-term investment, with a fair value of 292.6 million, plus roughly 238 more held briefly to service Cash App trades. All figures here are from the 2025 Form 10-K, filed 26 February 2026.