Severino signed a minor-league contract with the Mariners on Tuesday and was assigned to Triple-A Tacoma.
Severino asked for and was granted his release from the Padres on Wednesday, Jeff Sanders of The San Diego Union-Tribune reports.
Severino signed a contract with the Padres on Monday, Robert Murray of FanSided.com reports.
Severino was released by the Brewers on Friday, Rich Dubroff of BaltimoreBaseball.com reports.
Severino cleared waivers and was outrighted to Triple-A Nashville on Friday, Curt Hogg of the Milwaukee Journal Sentinel reports.
Severino was designated for assignment by the Brewers on Wednesday, Todd Rosiak of the Milwaukee Journal Sentinel reports.
The Brewers reinstated Severino (suspension) from the restricted list Sunday.
Severino (suspension) had his rehab assignment transferred to Triple-A Nashville on Friday.