The deal lands the Eagles an extra pick in the 2018 NFL Draft, as they now have two fifth-round picks.
Tobin was signed by the Eagles as an undrafted free agent back in 2013.
Berkshire nudged out of Oncor by Sempra Energy's $9.45-bn bid
Sempra Energy said it expects the deal to be completed in the first half of 2018 and to add to earnings beginning next year. Allen Nye, who is now Oncor's general counsel, will succeed Bob Shapard as the company's CEO.
The 6-foot-6, 290-pound lineman was placed on injured reserve on December 12, 2016 after suffering a knee injury in Week 14 with the Eagles.
The Seahawks said tight end Marcus Lucas was waived/injured to make room on the 90-man roster.
The starter at left tackle going for the rest of the year for the Seahawks will be either Luke Odhiambo, who filled in after Fant went down, or Luke Joeckel. Seattle now has a choice regarding how it rearranges its line: keep free agent acquisition Luke Joeckel at left guard or relocate him to left tackle, his original National Football League position. The Seahawks expect Senior to clear waivers and then revert to Injured Reserve. Seahawks coach Pete Carroll announced Fant is expected to undergo season-ending ACL/MCL surgery on Monday.