Alibaba's recent registration of additional American Depository Shares is not tied to any specific future transaction by SoftBank Group Corp , a spokesperson for the Japanese conglomerate said on Wednesday.
"The registration of the ADR conversion facility, including its size, is not tied to any specific future transaction by SBG," SoftBank said in a statement to Reuters.
E-commerce giant Alibaba last week filed to register an additional one billion American Depository Shares.
The move, Citigroup analysts said this week "might also suggest potential selling intention by SoftBank".
"Since Softbank has been a pre-IPO investor, we believe a large proportion of those shares have not been previously registered as ADS," Citi analysts including Alicia Yap wrote.
SoftBank Chief Executive Masayoshi Son told analysts he was "surprised" and had not requested the filing, according to a person familiar with the matter speaking on the condition of anonymity.
SoftBank's shares rose as much as 5.6 percent in Tokyo trading, with Alibaba's Hong Kong shares up 6 percent.
Alibaba "might have registered in advance a large number of ADS to support any future conversion plans of shareholders", Citi wrote in a note on Wednesday.
SoftBank's stake of around 25 percent in Alibaba is worth about $82 billion and has its origins in a $20 million investment in 2000.
That rivals SoftBank's own market capitalization of about $80 billion.
Alibaba's shares have fallen by 60 percent since highs in October 2020 amid a regulatory crackdown against tech firms in China.
SoftBank has used its Alibaba shares as collateral for loans and trimmed its stake using derivatives to capture upside from any rise in Alibaba's share price.
With SoftBank's fund raising plans in disarray after the collapse of the sale of chip designer Arm to Nvidia, the spotlight is on other potential asset sales as the group expands investing through its Vision Fund and buys back shares.
SoftBank's decision to list British chip designer Arm is good news for New York, bad news for London and the best option left for the Japanese group after the collapse of its blockbuster sale to Nvidia.
Arm, whose technology underpins the global smartphone industry, is most likely to float on the Nasdaq, SoftBank's CEO said, where it will tap into U.S. investor appetite and analyst expertise.
The move deals a blow to London where Arm traded, with a secondary listing on Nasdaq, from 1998 to 2016 before it was sold to SoftBank for $32 billion.
SoftBank's shares are down by about half from highs in March last year.
The group squeezed out a profit in the October-December quarter after an upswing in valuations in Vision Fund's private assets offset falling shares in its listed portfolio.
The group's loan-to-value ratio rose to 22 percent from 19 percent three months earlier as the net value of SoftBank's assets fell and debt rose. Son has pledged to keep the ratio below 25 percent in normal times.