PPF Group, the Czech investment company that Kellner co-founded, confirmed his death in a statement on Monday.
“With great sadness, PPF announces that … Petr Kellner tragically passed away in a helicopter accident in the Alaskan mountains,” the company said. “His professional life was known for his incredible work ethic and creativity, but his private life belonged to his family,” it added.
According to a statement from the Alaska State Troopers, four other people — including the helicopter pilot — were killed in the crash near Knik Glacier. One passenger was in a serious but stable condition. According to the statement, the chopper was an Airbus AS350 B3, owned by Soloy Helicopters. The company did not immediately respond to a request for comment outside normal business hours.
“The group is believed to have been heliskiing in the area,” the Alaska State Troopers’ statement said, adding that the National Transportation Safety Board will conduct an investigation into the cause of the crash.
— This is a developing story and will be updated.