The 25 year-old has failed to make an impact under Nerazzurri head coach Andrea Stramaccioni aafter recovering from an injury picked up in November.
And now the two Serie A clubs have agreed a deal that will see the anchorman return to the Stadio Ennio Tardini for the next six months with Gialloblu being offered the possibility of joint ownership of the player in July.
Kenyan Mariga played at Parma for three years, scoring five goals in 73 games after joining them from Helsingborgs.
He has successfully undergone a medical and will be unveiled at a press conference on Friday.
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