Yesform Co., Ltd acquired 5.4% stake in IBKS No. 4 Special Purpose Acquisition Company (KOSDAQ:A230980) on November 28, 2016. Yesform acquired 0.46 million shares of IBKS. Yesform Co., Ltd completed the acquisition of 5.4% stake in IBKS No. 4 Special Purpose Acquisition Company (KOSDAQ:A230980) on November 28, 2016.