The complaints reportedly came from current and former members of staff, the report, which did not quote sources by name, said.

Citigroup has appointed law firm Paul Weiss to investigate complaints about the conduct of Andy Sieg, the US bank's wealth-management chief, Bloomberg reported yesterday, citing “ people with direct knowledge of the matter.” The newswire did not identify its sources by name.

Citi declined to comment to FWR about the specifics of the story about Sieg. However, in an emailed statement, it said: “Andy is a highly respected leader with more than 25 years operating at the most senior levels of the wealth management industry. When he joined Citi in 2023, it was with a clear mandate for change and Wealth has been transformed under his leadership. Andy is a hard-charging leader who has established a strong, client-focused franchise that is delivering revenue growth and improved returns. He also continues to attract, retain and promote industry-leading talent, including the more than 40% of accomplished women on Wealth’s Senior Leadership Team. We look forward to Andy continuing to drive strong business performance.”

Sieg has drawn complaints from existing and former staff accusing him of intimidating and unfairly sidelining employees since he arrived almost two years ago, including allegations of expletive-filled rants and sarcastic comments, the Bloomberg report said. 

Paul Weiss has completed its investigation. More than a dozen people have been interviewed, including some as recently as July. The report said that Citigroup declined to comment on the outcome of the probe.

Sieg runs the global division and also sits on the bank’s 18-person executive management team.

Bloomberg said the law firm’s inquiry was opened after a request from human-resources chief Sara Wechter. The bank’s board, led by chair John Dugan, also received anonymous complaints critical of Sieg’s conduct at Citigroup and during earlier periods of his career, the report said, citing correspondence it has seen.