The SEC's Office of the Whistleblower, created in 2010 by the Dodd-Frank Act, is aggressively looking to file its first retaliation lawsuit against a company that fired an employee who offered a tip, the head of that office said this week to a group of attorneys in Philadelphia.

The Office of the Whistleblower has been up and running for about three years and its so-called "bounty" program has just this year paid out awards to the first four whistleblowers whose tips of original information led to a damages award for the Securities and Exchange Commission of $1 million or more.