Winnipeg has 48 hours to accept the ruling or turn it down and make Trouba an unrestricted free agent.
The team re-signed Lowry to a three-year, $8.75-million contract and Hellebuyck to a six-year, $37-million deal before announcing Sunday that Tanev re-signed a one-year deal worth $1.15 million.
Winnipeg was scheduled for an arbitration hearing with Tanev on July 25 before announcing the deal. Dano still has a hearing pending on July 30.
Trouba, a native of Rochester, Mich., had a hearing in Toronto on Friday.
He had 24 points during an injury-plagued campaign with the Jets last season.
The six-foot-three, 202-pound defenceman scored a career-high 33 points in 60 games during 2016-17. He sat out training camp and the start of the season over a dispute with the team, before signing a two-year, $6-million contract that expired on July 1.
Trouba was the Jets’ first-round pick at ninth overall in the 2012 NHL Draft.