Hong-Kong based Birmingham International Holdings said today that it had reported the matter, which relates to an unnamed individual, to the Hong Kong police, who were now investigating.
"[The loss] may have a material impact on the operation and financial situation of the group," Birmingham International Holdings said in a statement.
The group also flagged concerns that financial discrepancies had been missed by its auditors. It's now considering launching an investigation committee to examine the misappropriation, while determining how to improve internal controls.
Birmingham International Holdings' shares have been suspended from trading on the Hong Kong stock exchange since December 4, and will remain so.
Birmingham City's former owner Carson Yeung was convicted of money laundering in Hong Kong in March, and jailed for six years.