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All GSB locations are closed today, November 26th. Normal business hours will resume on Friday, November 27th. Enjoy your holiday!

All branches are open for drive-up and appointment only. Call your branch to schedule an appointment. Drive-ups and video tellers will continue to be open with normal business hours. We apologize for any inconvenience this may cause.

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Katherine Coster

Chair, Board Member Since 2012
Photo of Katherine Coster, GSB Board Chair

Kathy Coster has experience as a board member at both for-profit and nonprofit institutions. Since April, 2018 she has served as Chair of the Board of Gorham Savings.

On the Board at Maine Medical Center since 2013, Kathy is Local Board Vice Chair and a member of the Finance, Quality and Safety and Credentials committees. As a board member of MaineHealth, Kathy is Chair of the Education and Research Committee, and serves on the Executive and Governance Committees as well.

She has had a long affiliation with the Boys and Girls Clubs of Southern Maine, having served as President of the Board and co-chair of the $3 million Great Futures Campaign. Kathy has also held a number of roles as a volunteer for her alma mater, Dartmouth College, including representative to the Alumni Council and President of the Dartmouth Alumni Club of Maine.

Professionally, Kathy worked as a commercial banker at institutions in New York, California, and Massachusetts. She and her husband Mike live in Falmouth and have three adult children.