• 2010 Then & Now: Abstraction in Latin American Art, 1950 to Present, Deutsche Bank, New York
• The Machine Eats, Latincollector, New York
• Geometric Illusion, Latincollector, New York
• 2009 Voces y Visiones, El Museo del Barrio, New York
• The Line is a Sign, Latincollector, New York
• The Object is Illuminated, Latincollector, New York
• 2008 ArteAmericas Art Fair, Latincollector, Miami
• 2004 Prismatic Spaces, Andre Zarre Gallery, New York
• 2003 Estrictamente Geometrico, Galeria Ganza, Miami
• 2002 Highlights of the Collection, Museo del Barrio, New York
• 1999 New Graphics, Taller Frances Wu, Lima, Peru
• 1998 New Works, New Visions, Taller Boricua Gallery, New York
• 1997 Colors: Contrasts and Cultures, Discovery Museum, Bridgeport, CT
• 1996 Creaciones en Papel, Museo de Arte, Universidad de Puerto Rico
• 1994 Reaffirming Spirituality, El Museo del Barrio, New York
• 1992 Museo Cautino, Puerto Rico
• 1990 A Force of Repetition, New Jersey State Museum, Trenton, New Jersey
• Galeria Marrozzini, San Juan, Puerto Rico
• 1988 Geometry and Structure, Robeson Center Gallery, Rutgers University, New Jersey
• Mira!, Los Angeles Municipal Museum, Los Angeles, California
• 1987 Arte Abstracto, Museo de la Universidad, San Juan, Puerto Rico
• 1986 Art, New York, Sneed Gallery, Rockford, Illinois
• 1985 Art of the 1970's & 1980's, Aldrich Museum, Ridgefield, Connecticut
• 1983 Surfaces, Creiger Sesen, Boston, Massachusetts
• 1981 Patterns & Systems, Yellowstone Art Center, Billings, Montana
• Recent Directions, Rutgers University, New Jersey
• Shaped Field; Eccentric Format, P.S.1, New York, H. Brockington, Curator
• 1980 Dialects, Franklin Furnace, New York
• Islamic Allusions, Alternative Museum, New York, A. Kingsley, Curator
• 1979 Latin American Painters, Queens Museum, New York
• Fifteen New Talents, Aldrich Museum of Contemporary Art, Connecticut
• Criss-Cross Patterns, Fine Arts Center, Boulder Colorado
• Five New Painters, Soho Center for Visual Arts, New York
• 1978 Bridges, Henry Street Settlement House, New York
• Resurgence '78, El Barrio Museum, New York
• 1977 Biennial, Whitney Museum of American Art, New York
• 1976 Magnet, New York, Center for Inter-American Relations, New York