软银完成对OpenAI的225亿美元追加投资，总持股比例约11%

Group 1 - SoftBank Group completed an additional investment of $22.5 billion in OpenAI on December 26, fulfilling its investment commitment made in March, resulting in a total ownership stake of approximately 11% in OpenAI [1][4] - The total investment commitment now stands at $41 billion, including $11 billion from other third-party co-investors, which has been fully realized [1][3] - The latest investment partially utilized loans secured against the equity of chip design company Arm and drew from a $11.5 billion unused credit line [3] Group 2 - In April, SoftBank secured a $15 billion bridge loan with 21 financial institutions and has raised a total of $9.3 billion through bond issuances in Japan and overseas markets for the fiscal year 2025 [3] - SoftBank's Vision Fund has been actively investing in OpenAI since September 2024, with a commitment to invest up to $30 billion in two phases [3] - SoftBank's CEO Masayoshi Son expressed confidence that OpenAI will eventually go public and become the highest-valued company globally [4]