L.P. is a privately held pharmaceutical company founded by John Purdue Gray. It is owned principally by descendants of Mortimer and Raymond Sackler. In 2007, it paid out one of the largest fines ever levied against a pharmaceutical firm for mislabeling its product OxyContin, and three executives were found guilty of criminal charges. Although the company shifted its focus to abuse-deterrent formulations, Purdue continued to market and sell opioids, and continued to be involved in lawsuits around the opioid epidemic in the United States. Purdue filed for Chapter 11 bankruptcy protection on September 15, 2019 in New York.