Pearson logged two assists and a plus-2 rating in Friday's 6-4 win over the Senators.
Pearson scored a goal and added an assist in Saturday's 4-3 overtime loss to the Panthers.
Pearson signed a one-year, $775,000 contract with the Golden Knights on Friday.
Pearson signed a professional tryout agreement with the Golden Knights on Tuesday.
Pearson scored the game-winning goal on his only shot in Tuesday's 4-2 win over the Coyotes. He also had a hit.
Pearson had an assist, four shots on net and two penalty minutes over 12:50 of ice time in Thursday's 7-4 loss to the Rangers.
Pearson had an assist and one shot on net over 13:02 of ice time in Tuesday's 5-0 win over the Ducks.
Pearson (upper body) will be activated off injured reserve and return to the lineup Tuesday versus the Senators.
Pearson (upper body) will travel with the Canadiens for the team's upcoming three-game road trip to continue to rehab, Eric Engels of Sportsnet reports.
Pearson (upper body) worked out prior to Monday's practice session, Herb Zurkowsky of the Montreal Gazette reports.