HistoRx Inc., of New Haven, Conn., appointed Paul Stroobant vice president and head of research.

PTC Therapeutics Inc., of South Plainfield, N.J., promoted William Baird to chief financial officer.

Reata Pharmaceuticals Inc., of Dallas, appointed Charles Sanders to its board.

Sangamo BioSciences Inc., of Richmond, Calif., appointed Steven Mento to its board.

Sciona, of Boulder, Colo., appointed Roy Whitfield to its board and chairman of the science and business advisory board.

Senomyx Inc., of La Jolla, Calif., appointed Michael Herman to its board.

Sofinnova Ventures, of San Francisco, appointed Jeffrey Stein life science venture partner and Kauffman Fellow.

Sunesis Pharmaceuticals Inc., of South San Francisco, appointed Matthew Fust to its board, and promoted Gradon Knotts to vice president, business development.

Symphogen A/S, of Copenhagen, Denmark, appointed Ronald Levy, Stanley Falkow, Harry Greenberg, Thomas Monath and Daniel Levitt to its medical advisory board.

TargeGen Inc., of San Diego, appointed Phillip Schneider to its board.

Tercica Inc., of South San Francisco, appointed Susan Wong acting chief financial officer.