Christopher Hansen, 43, who has roots in Seattle and now heads Valiant Capital Management LLC, in San Francisco, is working with an investor group whose proposal has yet to be publicly unveiled.
Hansen, described by one source as a multimillionaire, could not be reached for comment Friday. He previously lived in Seattle's Leschi neighborhood, public records show.
Hansen is working with a Bellevue man who would like to bring an NHL professional hockey team to Seattle to play in the arena, according to the source, who did not know the name of the Eastside participant.
Christopher Hansen's two biggest positions in his 13F portfolio are Apple (AAPL) and Google (GOOG).