Experience

Tim Gray manages investments for high net-worth individuals as VP of The Gray Group at UBS, a decades-old family wealth management practice in Central MA.  Born and raised in Massachusetts, Tim left the area in 1987 but then returned in 2007 to join The Gray Group practice and to raise his own family in the same city where he grew up.  He originally left New England to attend Pomona College in Claremont California, where he received his undergraduate degree in 1991.  During this 20-year period out west, he also received two graduate degrees, including a M.A. in Communications from the University of California, Santa Barbara and a MBA from the Haas School of Business, University of California, Berkeley. 

Professionally, Tim spent 15 years as a quantitative market research executive, primarily in the mass media and new media spaces.  During this time, he worked for major global television, advertising, and public relations agencies, including the National Broadcasting Company (NBC), and Omnicom, a leading global advertising and marketing communications services company.  He also directed consumer research activities for a successful San Francisco start-up that was eventually acquired by Nielsen Media Research. 

Tim volunteers for several organizations in the area, serving as Clerk and Board Vice-Chair of the Ecotarium museum of science and nature.  He is immediate Past-President and current member of the Executive Committee of the Worcester Economic Club, which was incepted in 1903.  In the recent past he has served as President of the New England Alumni Chapter for the Haas School of Business and as President of the Worcester Tennis Club.  He has also served on the Alumni Awards Committee for his high-school alma mater (Bancroft School) and on volunteer committees for the Mohegan Council of the Boy Scouts of America, Worcester Family Health Center and the Worcester Polytechnic Institute Venture Forum.  

As the longest-tenured member of The Gray Group at UBS, Bob manages a select number of intergenerational relationships.  He formulates a course of action and helps clients pass on their wealth to succeeding gnerations, becoming a trusted advisor to their children and grandchildren.

Bob began his career in financial services 50 years ago at Kinsley & Adams in Worcester.  A graduate of Assumption College with a degree in History and Economics, he has continuted his education in financial and legacy planning to better serve the individuals and chartitable institutions with whom he has built long-term relationships.

Bob focuses his volunteer efforts on several community organizations, among them the Boy Scouts Mohegan Council.  He has served on the Board of Trustees for Assumption College for more than a decade.

Thaddeus Niemiec joined The Gray Group in 2022 and serves as a Senior Wealth Strategy Associate. A CERTIFIED FINANCIAL PLANNER™ professional, Thad is dedicated to helping clients simplify complexity and make more informed financial decisions.

He focuses on delivering a highly personalized client experience, drawing on his resourcefulness and strong problem-solving skills to help clients fully benefit from the breadth of UBS resources. Thad is passionate about building lasting relationships and plays a key role in aligning clients’ financial strategies with their broader life goals.

Thad earned a Bachelor of Science in Finance and Management from the Ryan School of Business at Providence College, where he also studied Chinese.

He holds his Series 7, Series 66, Series 9 and 10 securities licenses, as well as a Life Insurance license.

Outside of the office, Thad enjoys cooking, hiking, fishing, and traveling abroad.

Sandra Wahlgren is a Client Service Associate with The Gray Group, having joined the team in 2025. She is dedicated to delivering exceptional client service and takes great pride in creating a seamless and positive experience for every client.

In her role, Sandra supports clients and advisors across a range of needs, including managing cash flow requests, coordinating asset transfers, establishing new accounts, and assisting with day-to-day operational matters. She is known for her responsiveness, attention to detail, and commitment to helping clients feel informed and supported.

Prior to joining The Gray Group, Sandra began her career at UBS in 2020, where she was part of the Greater Boston Service Suite. In that fast-paced environment, she developed a strong foundation as a Client Service Associate, supporting both advisors and clients while gaining valuable industry experience.

Sandra earned a Bachelor of Science from the University of Bridgeport and a Master’s degree in International Higher Education from Lesley University.

Outside the office, she enjoys traveling, spending time with family and friends, and cooking.