The director of the Treasury Department’s Financial Crimes Enforcement Network is leaving the agency to become global head of sanctions at Citigroup, Reuters reported.

Andrea Gacki, who has led FinCEN since 2023, is departing after 25 years across the Treasury Department and the Justice Department, including a stint as the head of the Office of Foreign Assets Control (OFAC), the news agency said. She will stay at FinCEN for several weeks to assist with the leadership transition.

The Treasury Department named Jenna Casanova, a career official and former FBI forensic accountant, as acting FinCEN director, Reuters said. Casanova most recently was senior adviser to the undersecretary for terrorism and financial intelligence, where she worked on illicit finance and coordinated policy across FinCEN, OFAC, and other Treasury offices.

Casanova previously worked on FinCEN enforcement matters and helped lead the case that produced a record $1.3-billion Treasury Department penalty against TD Bank, according to the report. That penalty was part of roughly $3 billion in total sanctions assessed against the bank for violations of the Bank Secrecy Act.

Citigroup said Gacki will begin October 1 and join the leadership team of its Independent Compliance Risk Management unit, where the bank said she will help clients navigate an increasingly complex sanctions environment. Brent McIntosh, Citigroup’s chief legal officer and corporate secretary, served alongside Gacki at the Treasury Department during the first Trump administration, when he was undersecretary for international affairs, according to Reuters. He said Gacki is well-regarded in both government and the banking industry.

“Few leaders can match Andrea Gacki’s depth of experience in sanctions and financial crime,” McIntosh said in a LinkedIn post cited in the story.