Pinto notched two assists, three shots on goal and a plus-2 rating in Thursday's 4-3 overtime loss to the Kings.
Pinto scored a power-play goal and added an even-strength assist in Friday's 5-3 loss to the Coyotes.
Pinto scored the game-winning goal and added an assist in Wednesday's 3-2 overtime win over the Red Wings.
Pinto scored his first goal of the season in Tuesday's 4-1 win over the Canadiens.
Pinto has completed serving his 41-game suspension for violating the NHL's sports wagering rules.
Pinto (suspension) secured a one-year, $775,000 contract with Ottawa on Friday.
Coach Jacques Martin said Friday that he expects Pinto to be in the lineup Jan. 21 versus the Flyers when he completes his suspension, Claire Hanna of TSN reports.
Pinto (suspension), who is still a restricted free agent, is allowed to resume practicing with the Senators, Bruce Garrioch of The Ottawa Sun reports Wednesday.
The NHL announced Thursday that Pinto has been suspended 41 games for activities related to sports wagering.
Pinto, a restricted free agent, remains unsigned ahead of Wednesday's season opener versus Carolina, Wayne Scanlan of the Ottawa Citizen reports.