The former bank executive, David Aufhauser, had previously been the top in-house lawyer at the Treasury Department and also served on the Justice Department’s corporate fraud task force.

The former general counsel of UBS’s investment bank will give up a $6 million bonus he received from UBS to the state of New York under the terms of the settlement in the insider-trading case.

The Swiss bank UBS said that David Aufhauser, general counsel for its investment bank and for the Americas, had resigned.