As the “Queen of Talk,” Winfrey has built a thriving media empire that includes Harpo Productions.
Despite his declining net worth, Motsepe remains one of South Africa's richest men.
Shares in the group rose 35.56 percent as a result.
Smith directs Vista's investment strategy.
Britam has classified its 48.2-percent stake in HF Group as held for sale.
The winding-up petition adds to the pressures on Ardova and its majority owner.
Datatec is a South African ICT services provider.
Mwangi's 3.38-percent stake has now risen in value to $51.71 million.
Kotecha has been charged alongside his father, Midland Hauliers Director Javesh Kumar Prabhudar Kotecha.
Chimphondah is known for his successful business turnarounds.