Twelve more firms have been dinged with fines by the Securities and Exchange Commission for failing to properly supervise employees who used off-channel communications to conduct company business. In this latest round of enforcement actions, nine investment advisers and three broker-dealers will pay a total of $63 million.

Among those firms fined by the SEC on Tuesday were:

Aaron Nicodemus is the Editor-in-Chief of Compliance Week. He previously worked as a reporter for Bloomberg Law and as business editor at the Telegram & Gazette in Worcester, Mass. Email: aaron.nicodemus@complianceweek.com LinkedIn:...