Departure to come early next month, with no replacement yet chosen.

Geoffrey Aronow, now a Bingham McCutchen partner, said to be leading candidate.

Geoffrey Aronow, now a Bingham McCutchen partner, said to be leading candidate.

Obama names SEC Commissioner Elisse Walter to replace Schapiro as chairman.

Obama names SEC Commissioner Elisse Walter to replace Schapiro as chairman.

As FSOC action looms, several firms will meet with the SEC today to discuss a possible compromise.

As FSOC action looms, several firms will meet with the SEC today to discuss a possible compromise.

SEC chairwoman fails to turn around the agency's image as a failed watchdog.