SoftBank is planning to cut at least 30% of staff at its ambitious investment arm, the Vision Fund, a source confirmed to CNBC’s Deirdre Bosa. At least 150 out of 500 Vision Fund workers will be impacted by the cuts, according to Bloomberg, which first reported the news on Thursday. SoftBank Founder Masayoshi Son had foreshadowed cost cutting this summer after the company posted a $21.6 billion quarterly loss for the Vision Fund.