Independent corporate advisory firm Lexicon Partners said Henry "Hal" Clark III will join the firm as a senior adviser in New York. He will help to expand advisory activities in North America, focusing on power and utilities. Clark has 33 years of investment and corporate banking experience at Citigroup Inc., where he was group head and most recently chairman of its global power group.

Credit Suisse Group hired Benjamin Happ (pictured) as head of capital services, Asia-Pacific, for hedge fund client coverage. Happ arrives from Hong Kong alternative investment fund Abax Global Capital, where he was head of business development. Happ will report regionally to Kevin Meehan, head of prime services coverage in Asia-Pacific, and functionally to Edgar Senior, global head of capital services.

New York wealth management firm Lenox Advisors Inc. tapped Scott Greenfield as a senior vice president, sales management. Before this, he spent 10 years at Morgan Stanley and MetLife Inc.

Check The Deal Pipeline for updates on these Movers & shakers:

• Oppenheimer & Co. said Ed Tappan joined the firm as head of agency CDOs and MBS trading.
• CIBC World Markets Inc. enlisted Natasha Crago as a director, reporting to executive director Barnie Hartley.
• Morrison & Foerster LLP said Jerry Marlatt, formerly with Clifford Chance LLP, joined its capital markets group.