(Reuters) - Mattel Inc (MAT.O) had received a subpoena in December from the U.S. Securities and Exchange Commission seeking documents related to a whistleblower letter and subsequent investigation, the U.S. toymaker said in a filing on Tuesday.
In connection with the letter, an independent investigation by Mattel's audit committee and a separate probe by the company's external auditor found that the lead audit partner of the external auditor violated SEC rules. (bit.ly/2VyctQ7)
Mattel had disclosed in August that it received the anonymous letter.
Reporting by Sanjana Shivdas in Bengaluru, Editing by Sherry Jacob-Phillips