The person spoke on condition of anonymity because the team did not announce the move.
Mims fits a major need for a Jets offense that lost its top wideout, Robby Anderson, to Carolina in free agency. Chosen 59th overall, he’ll get a four-year deal worth about $5.5 million.
The New York Daily News first reported the Mims agreement.
New York has signed only one other of its nine 2020 draftees, fifth-round cornerback Bryce Hall of Virginia.
Mims will join a receiving group that includes free agent addition Breshad Perriman and slot receiver Jamison Crowder. Mims comes off a strong 2019 season with 66 catches for 1,020 yards and 12 touchdowns.