Den Hartog has exhibited since 1991 and her work has been included in exhibitions at the Corcoran Gallery, Washington, D.C. in the "Painting Outside Painting: 44th Biennial Exhibition of Contemporary American Painting,” European galleries in the Netherlands, Denmark and the Czech Republic. Her work is in the collection of The Museum of Modern Art. Den Hartog received a Guggenheim Fellowship in the field of Fine Arts in 2012. She received the Pollock-Krasner Foundation Artists Grant, the Art Matters, Inc. Artists Grant, and the City of Los Angeles Individual Artist Fellowship Award. Den Hartog received her BA in Fine Art at Linfeld College and her MFA in sculpture at Claremont Graduate School. She is a professor at Otis College of Art and Design, and the Program Director of Sculpture/New Genres.