NEW YORK (AP) — Lawyers for a former portfolio manager say prosecutors’ recommendation that he serve up to 20 years in prison for insider trading is “outrageous” and “irrational.”

Mathew Martoma’s lawyers said in papers filed late Tuesday that a judge at his sentencing next month would have to believe Martoma teamed up with his billionaire boss, Steven A. Cohen, to conclude he deserves such stiff punishment.