Marshawn Lynch, on the verge of becoming an unrestricted free agent, re-signs with the Seahawks. The Beast Mode back then puts together an All-Pro and Pro Bowl season while posting career-bests in rushing yards (1,590), per-carry average (5.0), longest run (77 yards) and 100-yard rushing games (10). Lynch continued to be a pivotal player in the run to the franchise's first Super Bowl championship in 2013, running for 1,257 yards and scoring a career-high 14 touchdowns during the regular season and adding 288 rushing yards and four TDs in three postseason games. He was even more productive during the 2014 season, when Lynch led the NFL with 17 TDs, rushed for 1,306 yards and caught 37 passes during the regular season and then led the league with 318 rushing yards in the playoffs.
The club re-signs unrestricted free agents Anthony Simmons and Antonio Cochran. Simmons then leads the Seahawks in tackles for the third time in four seasons.
Grant Wistrom signs with the Seahawks in free agency. The former Rams defensive end starts 41 games over the next three seasons and is selected a captain on the Seahawks' 2005 Super Bowl team.