Alec Litowitz-led hedge fund Magnetar Capital has emerged with an 11.3% shareholder in Teekay Offshore after participating in a series of financial moves by the Teekay Corp spinoff.

Magnetar told the US Securities & Exchange Commission that it now owns 15.6 million shares of Teekay Offshore, a Vancouver-headquartered owner of tankers, floating production units and offshore vessels.

The stake is worth $88.7m