Top backers PIF, Mubadala rethink role in new SoftBank Vision Fund

Top backers PIF, Mubadala rethink role in new SoftBank Vision Fund

Masayoshi Son. Photographer: Kiyoshi Ota/Bloomberg

The biggest backers of SoftBank Group Corp.’s gargantuan Vision Fund are reconsidering how much to commit to its next investment vehicle as an oversized bet on flexible workspace provider WeWork sours.