Maremont was born in Michigan. His father was president of the Chicago-based M. D. Maremont Company, a commercial real estate firm. He graduated with a bachelor's degree in history with honors and Phi Beta Kappa from Brown University and a master's degree from the Columbia University Graduate School of Journalism.
Maremont became telecommunications editor at Business Week in August 1983. He served as London correspondent from in July 1986 until July 1992, when he became the magazine's Boston bureau chief. While at Business Week, Maremont was a 1996 National Magazine Awards finalist the reporting category for a 1995 cover story on Bausch & Lomb and won the 1997 Gerald Loeb Award in the magazine category for "Abuse of Power," a 1996 cover story on sexual abuse at Astra USA.
In 2003, Maremont was a member of the Wall Street Journal team that wrote a series of articles for which the paper staff won the Pulitzer Prize for Explanatory Reporting. The citation read: "for its clear, concise and comprehensive stories that illuminated the roots, significance and impact of corporate scandals in America. This was originally nominated in the Public Service category, but was moved by the jury."
Maremont was a member of a Journal team that wrote a five-part series used statistical modeling to detect stock-option rigging and resulted in at least 70 executives losing their jobs. The series won the first Pulitzer Prize for Public Service for the Wall Street Journal. The citation read: "for its creative and comprehensive probe into backdated stock options for business executives that triggered investigations, the ouster of top officials and widespread change in corporate America." For the same series, Maremount and colleagues Charles Forelle and James Bandler shared the 2006 George Polk Award for Business Journalism and the 2007 Goldsmith Prize for Investigative Reporting. Additionally, Maremount, Forelle, Bandler, and Steve Stecklow were finalists for the 2007 Michael Kelly Award.
- Past Finalists: Mark Maremont. UCLA Anderson School of Management.
- "Emily Dreifus Wed to Mark Maremont" (August 13, 1984). New York Times.
- James Shapiro, "Two alums win Pulitzer Prizes" (April 22, 2007). Brown Daily Herald.
- Audit Interview: Mark Maremont (interview with Ryan Chittum) (February 6, 2009), Columbia Journalism Review.
- "The 2003 Pulitzer Prize: Explanatory Reporting." Pulitzer Prizes.
- "Michael Kelly Award - 2007 Winner and Finalists." Atlantic Media Company.
- Leslie Friday, "Coolidge Avenue resident wins Pulitzer for public service" (May 7, 2007). GateHouse Media.
- "The 2007 Pulitzer Prize: Public Service Reporting." Pulitzer Prizes.
- "2006 George Polk Award Winners." Long Island University.
- "Wall Street Journal wins 2007 Goldsmith reporting prize" (March 16, 2007). Joan Shorenstein Center on the Press, Politics and Public Policy
- Q&A: Mark Maremont, senior editor, Wall Street Journal, at the Donald W. Reynolds Center for Business Journalism at Arizona State University (January 21, 2010)
- Audit Interview: Mark Maremont (interview with Ryan Chittum, February 6, 2009), Columbia Journalism Review