Adriana Kugler, a former U.S. Federal Reserve governor, has come under scrutiny for violating trading rules during her tenure at the central bank. Disclosures reveal that Kugler engaged in improper stock trades and was subjected to an ethics probe prior to her resignation. Documents indicate that she was investigated for her trading activities, which included transactions in stocks such as Apple and Caterpillar, raising concerns about compliance with Fed regulations. Following these findings, Kugler resigned from her position, marking a significant development in the oversight of trading practices among key financial officials.