Genworth Financial, the $10 billion insurance holding company, named Amy Corbin CFO and senior vice president of its retirement and protection segment. She succeeds Kevin Walker, who left Genworth to become CFO of Fireman's Fund Insurance. Corbin, 44, most recently was controller and principal accounting officer for Richmond, Va.-based Genworth. Since joining the company in 2003, she has served in several financial positions. Earlier, she was an audit senior manager for Deloitte & Touche's national insurance practice.

Sempra Energy, the $9 billion energy services company in San Diego, Calif., named Joseph Householder CFO and executive vice president. He succeeds Mark A. Snell, who was named president of the company. Householder, 56, was most recently Sempra's chief accounting officer, controller and senior vice president. Prior to joining the company in 2006, he was a partner in the national tax office of PricewaterhouseCoopers and held key management positions at Unocal Corp.

Express, the $1.9 billion Columbus, Ohio-based clothing retailer, named D. Paul Dascoli CFO. He succeeds Matthew C. Moellering, who was named COO. Dascoli, 50, most recently was CFO for VF Jeanswear Limited Partnership, a division of VF Corp. Earlier, he was CFO and executive vice president at Thomasville Furniture Industries and vice president of financial operations at Revlon Consumer Products Co. Dascoli also served as CFO for two PepsiCo bottling operations, in St. Louis and Ontario.

Conexant Systems, a Newport Beach, Calif., semiconductor company with 2010 revenue of $240 million, named Carl Mills CFO. He succeeds Jean Hu, who left the company to become CFO at QLogic. Mills, 57, has been a finance executive for over 15 years and has served as CFO at SiPort, UPEC, Teknovus, QuickLogic, AltoWeb and WaferScale Integration.

DCT Industrial Trust, a $234 million industrial real estate company, named Matthew Murphy CFO. He succeeds Stuart B. Brown, who left the Denver-based company in August to become CFO at Red Robin Gourmet Burgers. Murphy, 47, joined DCT in 2003 and most recently served as treasurer and executive vice president. Earlier, he was controller at Pritzker Residential and held various positions at Security Capital Group and its affiliates.

Mattson Technology, a $138 million supplier of advanced process equipment used to manufacture semiconductors, named J. Michael Dodson CFO. He succeeds Andrew Moring, who will remain with the Fremont, Calif.-based company through the end of the year. Dodson, 50, joins Mattson from DDi Corp., where he had been CFO and senior vice president since 2010. Earlier, he was CFO and senior vice president at eTelecare Global Solutions, Electro Scientific Industries and Speedfam-IPEC, as well as chief accounting officer at Novellus.