Walt Disney Co. Chief Executive Bob Iger has resigned from the board of Apple Inc. , the Silicon Valley company said in a filing late Friday. Iger resigned on Tuesday, according to the filing, which contained no other information. Earlier this week, Apple revealed that it would charge $4.99 a month for its previously announced streaming service, set to launch Nov. 1, undercutting Disney as well as Netflix Inc.’s streaming businesses. Iger had joined the Apple board in 2011, according to Disney’s website. Other Apple board members include Chief Executive Tim Cook, former Genentech Chief Executive Arthur Levinson, who is the board’s chairman, and former Vice President Al Gore. Shares of Apple and Disney were flat in the extended session Friday after ending the regular trading day down 1.9% and 0.4% higher.