Reports are that the Euro 2020 winner has already agreed personal terms with the French giants and could complete his move to the Ligue 1 soon.
After talks for a contract extension with the Rossoneri thwarted, the bulky goalkeeper has always fancied a move away from the Serie A.
However, Donnarumma releasing a statement in this kind could mean the 22-year-old is on his way out of the club despite guiding AC Milan back to Champions League football last term.
"Some choices are difficult, but they are part of a man's growth.
arrived at Milan when I was little more than a child, for eight years I wore this shirt with pride, we fought, suffered, won, cried, celebrated, together with my teammates, my coaches, all those who have made and are part of the Club, together with our fans who are an integral part of what has been a family for many years.
"In the Rossoneri shirt I also achieved personal goals, such as my debut at 16 in Serie A. I lived through extraordinary years that I will never forget.
"Now the time has come to say goodbye, a choice that was not easy, indeed, and certainly a post is not enough to explain it, or perhaps it cannot even be explained because the deepest feelings can hardly be translated into words. What I can say is that sometimes it is right to choose to change, to face different challenges, to grow, to complete oneself.
"All the Rossoneri I met, from the first to the last day, will always remain in my heart as an important, indeed fundamental part of the life path that made me what I am.
"I wish Milan all possible successes and I do it with my heart, for the affection that binds me to these colors, a feeling that distance and time cannot erase."
Donnarumma, since joing AC Milan at age 17 has developed to become of the best goalkeepers in the world of football, playing a key role in Italy's Euro 2020 success story.