Jack Ross after Hibs moved late for the Scotland under-21 international. Magennis has been with the Buddies for 17 years, since joining the club's youth academy at the age of just five.
He made his St Mirren debut against his new club back in October 2016, scoring his first goal against Queen of the South in December of that year.
Speaking ahead of the move being confirmed, Saints boss Jim Goodwin said: "I made him our captain in the summer because I think he’s one of the best midfielders in the country. “ Hibs are very lucky to get him.
I am gutted to lose him. “It was out of my control. In the current climate financially things are tight for every club and we are no different.“I felt we could have held onto him and dug our heels in and.
Read more on dailyrecord.co.uk