TOKYO, April 13 (Reuters) - Japanese technology investor SoftBank Group Corp (9984.T) has moved to sell almost all of its remaining shares in Alibaba Group Holding Ltd (9988.HK), , the Financial Times reported, sending the Chinese e-commerce major's stock tumbling.
Alibaba, one of the most valuable assets in SoftBank's portfolio, tumbled as much as 5.2% in Hong Kong after the report before paring the loss to 2.8%.
SoftBank has been seeking ways to monetise its stake in Alibaba, which the Japanese conglomerate bought into more than two decades ago with just $20 million spending.
On Wednesday, the FT said forward sales based on filings at the U.S. Securities and Exchange Commission showed SoftBank's Alibaba stake would eventually fall to 3.8% from almost 15%.
The Japanese group, led by billionaire founder Masayoshi Son, has sold about $7.2 billion worth of Alibaba shares this year through prepaid forward contracts, the newspaper said.