The U.S. Securities and Exchange Commission awarded more than $27 million on Thursday to a whistleblower credited with tipping the agency off to misconduct that played out partially overseas and providing critical leads in an investigation that resulted in a successful enforcement action.

The bounty was by far the largest of the nine awards issued so far this year, vaulting the SEC’s program for rewarding tipsters past a notable milestone. In the decade since the Dodd-Frank financial reforms created the whistleblower program, the SEC has now doled out more than $400 million in awards.