In Gerry's freshman year he had 32 tackles, including 18 stops. In Gerry's sophomore season he switched from linebacker to safety. Gerry started every game and led the Huskers with five interceptions and was second on the team for tackles with 88. Gerry started every game in 2015 and led the Huskers with 79 tackles and 4 interceptions. He also had 7 pass breakups. In 2016, Gerry was named Third-team All-Big Ten Conference by the coaches and Second-team All-Big Ten by the media.[2]
He was ruled ineligible for his final game with the Huskers, the Music City Bowl versus Tennessee Volunteers.
Gerry was drafted by the Philadelphia Eagles in the fifth round, 184th overall, in the 2017 NFL draft.[4] He signed a four-year rookie contract with the Eagles on May 12, 2017.[5] He was waived on September 2, 2017 and was signed to the Eagles' practice squad the next day.[6][7] He was promoted to the active roster on October 19, 2017.[8] On February 4, 2018, Gerry won Super Bowl LII with the Eagles.[9]
In week 5 of the 2019 season against the New York Jets, Gerry recorded an interception off Luke Falk and returned it for a 51 yard touchdown in the 31–6 win.[10] In week 11 against the New England Patriots, Gerry recorded a team high 10 tackles and sackedTom Brady once in the 17–10 loss.[11]
Gerry was placed on the reserve/COVID-19 list by the Eagles on July 29, 2020.[12] He was activated on August 9, 2020.[13] He was placed on injured reserve on October 30, 2020 with an ankle injury.[14]
San Francisco 49ers
On March 29, 2021, Gerry signed a one-year contract with the San Francisco 49ers.[15] He was released with an injury waiver on July 6, 2021.[16] He was re-signed to the practice squad on September 8, 2021, but was released on November 2, 2021.[17]
Washington Commanders
Gerry signed with the Washington Commanders on August 7, 2022.[18] He was placed on injured reserve on August 23, 2022, and was released with an injury settlement two days later.[19][20] He signed with the Commanders' practice squad on November 3.[21] On January 4, 2023, he was signed to the active roster.[22]
Gerry signed a one-year contract extension on March 1, 2023, but was released on May 23, 2023.[23][24]