An unknown buyer acquired 5.36% stake in Petrovietnam Securities Incorporated (HNX:PSI) from Hong Ngan JSC on October 14, 2019. The buyer acquired 3.21 million shares. An unknown buyer completed the acquisition of 5.36% stake in Petrovietnam Securities Incorporated (HNX:PSI) from Hong Ngan JSC on October 14, 2019.