Before the start of the 2015–16 season, Pellissier, at the age of 36, was "surprised" to get a three-year contract extension until June 2018. When he signed the contract he was expecting "to repay in full", seeking to reach the mark of 100 goals in Serie A. He had score 93 goals so far, and he was not able to reach the mark, scoring five goals in 19 appearances. During the season, he would "take the scene", as reported by Mediaset, scoring a brace in a 5–1 win against Frosinone. In the following season (2016–17), he would reach his 400th Serie A match on 6 November 2016 during a 2–1 defeat against Juventus when he also scored his 99th goal. His 100th Serie A goal, all of which came with Chievo, would be scored on 11 December 2016 in a 2–0 away win over Palermo. He also scored in consecutive Serie A matches twice—in the 16th and 17th round, and in the 19th and 20th round. In 2017–18, he played 20 matches and scored two goals, both goals were scored against Hellas Verona; the first, on 22 October 2017, in a Serie A 3–2 victory, and the other on 29 November in a Coppa Italia 1–1 draw, when he also missed a decisive penalty shot.