Tatupu's first two interceptions early in the first quarter both led to Seattle touchdowns, while the last came at the Seahawks' own four-yard line in the last minute of the game. Tatupu, the son of former NFL player Mosi Tatupu, was a second-round draft pick in 2005.
Matt Hasselbeck managed two touchdowns on 19-of-34 passing for the Seahawks (8-4), who have now won four straight.
Feeley completed 19 of 42 passes for 220 yards, one touchdown and four interceptions for Philadelphia.
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