Yet its previous losses prevented SoftBank from securing outside investors for Vision Fund 2 (VF2), whose $56 billion in capital came from the Japanese firm and its management, including Chief Executive Masayoshi Son.
A big windfall for VF1 investors could boost SoftBank's chances of tapping them for capital again in the future.
It has been considering raising a third Vision Fund.
VF1's investment committee and SoftBank's investment advisory board, attended by fund investor representatives, are handling the negotiations, one of the sources added.
SoftBank, VF1 and Arm declined to comment.
Persons:
SoftBank, Abu Dhabi's Mubadala, Didi Global, VF1, Masayoshi Son, Raine
Organizations:
Financial Times, Vision Fund, Nasdaq, Saudi Arabia's Public Investment Fund