Fowler agreed to terms on a contract with the Falcons on Wednesday, Vaughn McClure of ESPN.com reports.
Fowler Jr. finished the season with 58 tackles (40 solo), 11.5 sacks, six passes defensed, two forced fumbles, a fumble recovery and a touchdown.
Fowler recorded six tackles (five solo), 2.5 sacks, a pass breakup and a forced fumble in Saturday's 34-31 loss to the 49ers.
Fowler recorded two solo tackles, one sack and two defended passes during Sunday's 34-7 win over the Cardinals.
Fowler posted two tackles (one solo) and returned a fumble recovery for a touchdown in Sunday's loss to the Steelers.
Fowler posted four tackles (three solo) and 1.5 sacks during Sunday's 24-10 win over the Bengals.
Fowler notched seven tackles (six solo), three sacks, one defended pass and one forced fumble during Sunday's win over the Falcons.
Folwer Jr. racked up two sacks and three quarterback hits in Sunday's 30-27 win over the Panthers.
Fowler is signing a one-year, $14 million contract to stay with the Rams, Ian Rapoport of NFL Network reports.
Fowler agreed to re-sign with the Rams on Sunday, Myles Simmons of the Rams' official site reports.