Berkshire Hathaway paid an $896,000 civil penalty to settle Federal Trade Commission (FTC) charges that it violated premerger reporting and waiting requirements when it acquired voting securities of USG Corporation in December 2013. According to the FTC, Berkshire Hathaway changed convertible notes it owned in USG into 21.4 million voting securities on December 9, 2013. As a result of the conversion, the value of its USG holdings exceeded $283.6 million, the premerger reporting threshold under the law at the time. The company subsequently made a corrective filing, and acknowledged that the transaction should have been reported under the Hart-Scott-Rodino Act.