Seattle signed Harden on Wednesday, Ari Horton of the Seahawks' official site reports.
Just a couple days after being cut by Cleveland, Harden is already getting another chance with a new squad. He's likely a long shot to make the 53-man roster, competing with names like Zach Charbonnet (knee), rookie first-rounder Jadarian Price, George Holani and free agent acquisition Emanuel Wilson.