Alison Mackey

Chief Investment Officer at

Massachusetts Financial Services Co.

Finance

Consumer Services

Profile

Ms. Alison O.
Mackey is a Chief Investment Officer at Massachusetts Financial Services Co. She oversees the firm's global investment platform, which comprises more than 300 investment professionals across investment research, portfolio management, trading and investment risk.
She is also a portfolio manager and a member of the firm's Enterprise Leadership Team.
She was named CIO in 2025.
She joined MFS in 2005 as an equity research analyst.
She was named director of research for North America in 2016, assumed her portfolio manager role in 2018 and was named co-CIO of Equity in 2020.
She has worked in the industry since 2000.
She earned a Bachelor of Arts degree cum laude from Harvard University and a Master of Business Administration degree from the Massachusetts Institute of Technology.

Alison Mackey active positions

Companies	Position	Start
Massachusetts Financial Services Co. Massachusetts Financial Services Co. Investment ManagersFinance MFS focuses on identifying businesses with durable, long-term value through their active investment platform. The firm uses various methods to evaluate securities, including fundamental analysis and quantitative analysis.	Chief Investment Officer	2024-12-31

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Linked companies

Private companies	3
Massachusetts Financial Services Co. Massachusetts Financial Services Co. Investment ManagersFinance MFS focuses on identifying businesses with durable, long-term value through their active investment platform. The firm uses various methods to evaluate securities, including fundamental analysis and quantitative analysis.	Finance
Massachusetts Institute of Technology Massachusetts Institute of Technology Finance/Rental/LeasingFinance Functions as a College/University	Finance
Harvard College Harvard College Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services