2007-08: Stefan Fournier had 27 points in 19 games for the Lac St-Louis Lions in Quebec AAA midget hockey as a 15-year-old. Missing much of the year after fracturing his femur, he scored 10 goals with 17 assists and had 18 penalty minutes. Fournier was selected by Acadie-Bathurst in the first round (17th overall) of the 2008 QMJHL Entry Draft.
2008-09: Fournier played 40 games for Acadie-Bathurst in his first QMJHL season and skated for Canada Quebec in the 2009 U17 World Hockey Challenge. He scored 2 goals with 1 assist for the Titan and was -12 with 18 penalty minutes. Acadie-Bathurst reached the playoffs despite winning just 20 games but Fournier did not play in the series against Gatineau.
2009-10: Fournier went from Acadie-Bathurst to Lewiston over the summer and played 52 games for the MAINEiacs in his second QMJHL season. He scored 12 goals with 13 assists and was -3 with 54 penalty minutes. Lewiston reached the playoffs despite finishing last in the Central Division. Fournier scored 1 goal with 2 assists and was -1 with 2 penalty minutes in four playoff games as the MAINEiacs were swept by Drummondville.
2010-11: Fournier returned to Lewiston for a second season and was joined by his younger brother Dillon Fournier, a defenseman who was the MAINEiacs first round pick in the 2010 QMJHL Entry Draft. Stefan Fournier scored 20 goals with 27 assists in 67 games and was +11 with 69 penalty minutes. Lewiston was one of the QMJHL's top teams, finishing second in the newly-aligned East Division and reaching the QMJHL semifinals. Fournier scored 4 goals with 6 assists and was +3 with 2 penalty minutes in 15 playoff games.
2011-12: Fournier attended training camp with the Pittsburgh Penguins before returning to the QMJHL for his fourth season. Acquired by Victoriaville after Lewiston folded, Fournier was one of seven players with 65 or more points on a Tigres team that scored a league-leading 311 goals. He had 32 goals with 33 assists in 64 games and was +14 with 96 penalty minutes. Victoriaville finished second in the East Division before being swept by Baie-Comeau in the playoffs. Fournier scored 1 goal with 1 assist and was -5 with 2 penalty minutes in four playoff games.
2012-13: Fournier returned to the QMJHL for an overage season and scored at a point-per-game pace while leading Memorial Cup champion Halifax in penalty minutes. A team captain, he scored 35 goals with 37 assists and was +17 with 100 penalty minutes in 66 games. After finishing first in the Maritimes Division with the QMJHL's best record, the Mooseheads lost just once in the QMJHL playoffs. Fournier scored 16 goals with 13 assists in 17 playoff games and was +11 with 31 penalty minutes. Halifax overcame a surprising loss to host Saskatoon in Memorial Cup round-robin play; defeating Portland in the championship game. Fournier scored 1 goal with 2 assists and was +1 with 4 penalty minutes in four games. He signed a three-year entry-level contract with Montreal in July of 2013.
Fournier should compete for a bottom-six forward position at the AHL level in Hamilton but could see time in the ECHL as he adjusts to the speed and size of the pro level. The physical winger has the hands around the net to play higher in the line-up and will need to drive the front of the opposition's net on a consistent basis to have success.