Mosher graduated from New York University's Tisch School of the Arts.[5][1] She worked as an assistant on films in Brazil and produced commercials.[6]
Mosher made her directorial debut with the 2004 documentary, Hummingbird,[1] a film about two organizations which work with Brazilian street children and women who are victims of domestic violence.[2] She produced Side Effects in 2005 and Money Talks: Profits Before Patient Safety in 2006. Mosher also co-produced Maybe Baby in 2007. She was executive producer of Vanishing of the Bees,[3] FREE FOR ALL! and Pay 2 Play: Democracy's High Stakes, a documentary about the influence of money in politics.[1][7] In 2011, she directed Bonsai People: The Vision of Muhammad Yunus, a feature-length documentary about the work of Muhammad Yunus and the lending system he founded for people in poverty.[8][9][10] In 2025 she executive produced The Invisible Mammal . Mosher also dabbles in real estate and is a partner in an eco, health wellness community called Belle Farm in Wisconsin.
She has also served on the boards for the Social Enterprise Alliance LA Chapter, Public Interest Pictures and serves as the Director of Outreach and Communications for Money Out Voters In.