The investment firm Sport Republic, backed by Serbian billionaire Dragan Solak, has completed a takeover of Southampton by picking up an 80% stake in the club, it was announced on Tuesday.
Solak, who owns the United Group, a telecom company, acquired the club from Chinese businessman Gao Jisheng, who bought his 80% stake in August 2017.
"Over the last two years, together with the shareholders of our club, we have searched for the right partner to take the club forward. Today we have found the perfect solution for our club," Southampton chief executive Martin Semmens told the club's website.
"Sport Republic are experienced investors, but also experienced within the world of elite professional sports. That combination is very hard to find, and we are thrilled to have reached an agreement that secures our short and long-term future."
Katharina Liebherr, who inherited the club from her late father Markus in 2010 when they were in English football's third-tier League One, will retain the other 20%.
The deal is the latest takeover of a Premier League club in a space of months after Czech billionaire investor Daniel Kretinsky acquired a stake in West Ham United in November.
Southampton are 14th in the Premier League with 21 points from 19 games. They travel to second-tier Swansea City in the third round of the FA Cup on Saturday.