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Asset Owners

Japan Post Bank departing portfolio investment chief appoints successors

Kunio Tahara, a senior managing director at Japan Post Bank, and Taiichi Hoshino, a managing director, will take the helm of Japan Post Bank's ¥207.7 trillion ($1.9 trillion) investment portfolio, effective Wednesday, said Katsunori Sago, representative executive vice president.

Mr. Sago, the former senior Goldman Sachs executive who joined Japan Post Bank three years ago with the mission of building up the financial giant's portfolio investment capabilities, said in an emailed statement that Tuesday was "my last day" at the bank.

Starting Wednesday, Messrs. Tahara and Hoshino, "my successors, will take over the bank's investment portfolio optimization initiatives," he said. Their official titles could not be learned by press time.

Mr. Sago said he will take on a new role at technology investment giant SoftBank on the board of directors, noting that it had been his "dream to go back to the technology space someday."