Wall Street 50 – 2010

Mary Ann Callahan/Depository Trust & Clearing Corp.

Mary Ann Callahan, managing director of global relations and development at DTCC, has cultivated DTCC’s strategic business relationships and alliances for over 20 years. As president of the Americas’ Central Securities Depositories Association since 2007, she leads a regional forum of 25 national market infrastructures in business developments worldwide. She was head of DTCC’s London office for four years, and last year, Global Custodian magazine named her to its 20th anniversary hall of fame as a financial industry “legend.”
A third-generation Irish American, Mary Ann earned a BA at Manhattanville College and an MBA in finance at NYU’s Stern School of Business. Her maternal grandfather, whose parents emigrated from Dublin, served with the Fighting 69th during WWI. During her childhood, her grandfather marched each year with his Irish-heritage regiment at the front of New York’s St. Patrick’s Day Parade. Her paternal great-grandparents hailed from Mayo.

Regularly in touch with Invest Northern Ireland’s U.S. team, Mary Ann is also a supporter of International Center in New York and Covenant House.