According to PANews, Michael Sonnenshein, the former CEO of Grayscale Investments, has officially joined Securitize as the Chief Operating Officer (COO) as of December 9. Sonnenshein's tenure at Grayscale spanned a decade, during which he played a pivotal role in transforming the company into the world's largest crypto asset management firm. Under his leadership, Grayscale managed assets worth tens of billions of dollars and was instrumental in securing approval for the first spot Bitcoin ETF in the United States.