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Advisor Information for MBNAX

Fund Inception01/02/2004
Name of IssuerNew York Life Investment Management LLC
Fund Advisor(s)New York Life Investment Management LLC
Sub-Advisor(s)Wellington Management Company LLP
NYL Investors LLC

Fund Managers for MBNAX

Jonathan Swaney
Portfolio Manager since 02/28/2017
Jonathan Swaney was an employee of New York Life Investments from 1997-2009 and was responsible both for managing quantitative equity portfolios and performing research at New York Life Investments’ Equity Investors Group. Also within New York Life Investments, Mr. Swaney previously worked with the Investment Consulting Group and was a portfolio manager with the Quantitative Strategies unit. In 2009, Mr. Swaney joined Madison Square Investors LLC, an indirect, wholly-owned subsidiary of New York Life. While at Madison Square Investors LLC, Mr. Swaney was responsible both for managing quantitative equity portfolios and performing research. In January 2011, Mr. Swaney re-joined New York Life Investments as part of the Investment Consulting Group. Mr. Swaney began his career in financil services working on the fixed income desk at the Vanguard Group after earned his B.A. in Political Science from The College of William & Mary in 1991. He also spent several years with a hedge fund of funds before coming to New York Life Investments in 1997.
Kenneth Sommer
Portfolio Manager since 11/06/2017
Ken Sommer joined New York Life Investment Management LLC (predecessor of NYL Investors LLC) in 2005. Mr. Sommer is a Managing Director in the Investment Grade Portfolio Management team of NYL Investors' Fixed Income Investors. He assumed this role in 2018 and has over 15 years of investment experience. Previously, Mr. Sommer was a sector specialist overseeing all corporate bond execution for the Investment Grade Portfolio Management team. Prior to joining New York Life, he was an Investment Analyst at MetLife Investments. Mr. Sommer received a B.S. from Binghamton University and an M.B.A. from Fordham University.
Adam Illfelder
Portfolio Manager since 03/05/2021
Adam H. Illfelder, CFA, is Senior Managing Director and Portfolio Manager and joined Wellington in 2005. He has been involved in portfolio management for the equity portion of the Fund since 2017 and has been involved in securities analysis for the Fund since 2008. He has 23 years of investment management experience. Mr. Illfelder earned his MBA from Northwestern University (Kellogg, 2001) and his BS in economics from the University of Pennsylvania (1997). Additionally, he holds the Chartered Financial Analyst designation and is a member of the CFA Institute.
Matthew Downs
Portfolio Manager since 02/28/2023
Mr. Downs is a Senior Director of NYL Investors LLC. He joined New York Life Investment Management LLC in 2005 and is a portfolio manager in the Investment Grade Portfolio Management Group. Mr. Downs earned his BBA from Fordham University and a MBA from Pace University Lubin School of Business.
Betsy George
Portfolio Manager since 02/28/2025
Ms. George has managed MainStay WMC Value Fund since February 2024. She is Managing Director and Equity Research Analyst and joined Wellington in 2017. Ms. George has been in the investment management industry since 2004. She earned an MBA from Harvard Business School and a BS in economics, with honors, from the Wharton School at the University of Pennsylvania.
Ravi Gill
Portfolio Manager since 02/28/2025
Mr. Gill has managed the MainStay WMC Value Fund since February 2024. He joined Wellington in 2019 and is currently a Managing Director and Equity Research Analyst. Prior to joining Wellington, he worked as a research analyst at Capital Group from 2013 to 2018. Mr. Gill earned his MSc in accounting and BBA in finance and investments, summa cum laude, from Baruch College of the City University of New York. Additionally, Mr. Gill holds the Chartered Financial Analyst designation and is a member of the CFA® Institute.
Migene Kim
Portfolio Manager since 04/16/2025
Migene Kim, CFA is the Head of Systematic Equity and a Portfolio Manager & Senior Analyst. Her responsibilities include portfolio management, investment research & strategy development. Migene joined the firm in 2005 as a PM. Previously, she spent 7 yrs as a quantitative analyst in INVESCO's Structured Products Group. She started her career as an Analyst at Chase Manhattan Bank in 1993. She received her BA in Mathematics, graduating summa cum laude from the University of Pennsylvania. She earned her MBA from the MIT Sloan School of Management. She has been working in industry since 1993.