[2] On November 19, 2011, Pearson scored a hat trick, including the game winner in overtime, in a 6–5 win over the Ottawa 67's.

[3] On March 18, 2012, it was announced that Pearson would miss the remainder of the season and any Colts' playoff games due to a broken fibula.

[6] In 2013, the Kings recalled Pearson after completion of his first professional season with their American Hockey League (AHL) affiliate, the Manchester Monarchs, to be one of their "black aces" on their taxi squad during the Stanley Cup playoffs.

[11] In October 2016, during the Kings training camp, Pearson was suspended for four games for an illegal hit to the head of Brandon Davidson of the Edmonton Oilers.

[17] As an impending restricted free agent following the 2016–17 season, having established career bests with 24 goals and 44 points, Pearson agreed to a four-year contract extension worth $15 million on May 8, 2017.

[21] On November 14, 2018, Pearson ended his seven-year tenure with the Kings as he was traded to the Pittsburgh Penguins in exchange for winger Carl Hagelin.

[22] Pearson made his Penguins debut on November 15 in a 4–3 loss to the Tampa Bay Lightning, skating on a line with Evgeni Malkin and Patric Hornqvist.

[26] On February 25, 2019, the Penguins traded Pearson to the Vancouver Canucks in exchange for defenceman Erik Gudbranson.

On January 12, 2023, the Canucks organization announced via Twitter that the winger had undergone his third hand surgery since November,[32] and would miss the remainder of the 2022–23 season.

[37] On September 19, Pearson was traded to the Montreal Canadiens along with a 2025 third-round pick in exchange for goaltender Casey DeSmith.

[38] As a free agent ahead of the 2024–25 season, Pearson signed a professional tryout (PTO) agreement with the Vegas Golden Knights on August 20, 2024.

[40] Pearson played for Canada at the 2012 World Junior Ice Hockey Championships, where he was a part of the bronze medal winning team.