According to the Los Angeles County Probation Department, Dunn was taken into custody by the Los Angeles Sheriff's Department's Major Crimes Division Wednesday at approximately 10:30 a.m.
"Mr. Dunn's arrest was the result of the diligent efforts lead by the Los Angeles County Probation Department's Special Enforcements Operation and the Los Angeles Sheriff's Department's Major Crimes Division," the L.A. County Probation Department told ET in a statement.
Dunn, 27, was reportedly found in an alley in Santa Monica, Calif., which ended the manhunt that began on Saturday evening.
Dunn was arrested twice in 2012 after trying to contact Kunis. The first time being in Feb. 2012 when he was found living in an unoccupied condo owned by the actress and the other arrest taking place in May 2012, which is when prosecutors charged him with stalking and violating a restraining order. He pleaded no contest and was sentenced to six months in a live-in rehabilitation program.