The former chief executive officer of Morgan Stanley was appointed to head Disney's succession planning in August.
His son Lachlan Murdoch will become sole chairman of News Corp.
He wants to devote money to fighting climate change and to those seeking to unify people in polarized times.
The shares are gaining amid speculation that Twitter will strike a deal that is more palatable to shareholders.
The allegations point to a pattern of surveillance of perceived opponents and those of strategic importance to the Saudis.
The question, as so often with Amazon, is whether investors will calm down once they’ve digested the earnings report.
The second thoughts are coming in reaction to heated opposition to the plan, the Washington Post reported.
Arthena wants to democratize a traditionally opaque market in an era of record art auctions.