The filing late Sunday night in White Plains, New York, was anticipated before and after the tentative deal, which could be worth up to $12 billion over time, was struck.
But legal battles still lie ahead for Purdue. About half the states have not signed onto the proposal. Several of them plan to object to the settlement in bankruptcy court and to continue litigation in other courts against members of the Sackler family, which owns the company.
The bankruptcy means that Purdue will likely be removed from the first federal opioid trial, scheduled to start in Cleveland on Oct. 21.