[5] Gummer attended Vassar College, her mother's alma mater, and received a degree in art history and Italian in 2008.
[6] Gummer made her screen acting debut (billed as Jane Grey) in the 1993 film The House of the Spirits, as the younger version of her mother's character, Clara del Valle.
She had her next professional acting job after graduating college; in 2008, she starred Off-Off-Broadway in Lukas Bärfuss's The Sexual Neuroses of Our Parents.
In December 2010, Gummer played the role of Hero in a Los Angeles production of Much Ado About Nothing, opposite Helen Hunt.
In the spring of 2011, Gummer made her Broadway debut, performing the role of Chloë Coverly in the revival of Arcadia by Tom Stoppard at the Ethel Barrymore Theatre in New York.
Gummer appeared as Katie Rand on the NBC television series Smash on March 26, 2012, in the episode entitled "The Coup"; her character is a humanitarian attempting to bring peace to her divorcing parents, including her mother, played by Anjelica Huston.
Beginning in 2013, Gummer began having more, and higher profile, roles on television, having been cast in a series of recurring and main parts.
Gummer had a recurring role as FBI agent Paige Willis on the television series Zero Hour, which aired in the early Spring of 2013.
Robot, Gummer acted in the comedy The Long Dumb Road and the action-thriller Beast of Burden in which she co-starred opposite Daniel Radcliffe; both films premiered in 2018.
Robot during the first half of 2019, Gummer joined the cast of The Public Theater's production of A Bright Room Called Day, which opened in November 2019.
[20] On September 4, 2021, it was announced that Gummer married British-American musician and record producer Mark Ronson after one year of dating.