Odaily News Rich Rosenblum, co-CEO of crypto market maker GSR, and CTO John MacDonald announced their resignation. This leadership change is another major executive change for GSR this year. On June 26 of this year, the company's then CEO Jakob Palmstierna became president, while Rosenblum and Xin Song served as co-CEOs. The new structure is in line with the company's "carefully planned creativity." GSR pointed out that Rich Rosenblum left the company to "seek new entrepreneurial opportunities" and will continue to stay in touch with GSR. It is reported that Rich Rosenblum and Cristian Gil founded GSR in 2013, and Cristian Gil is currently the chairman. (TheBlock)