Biography

Dawn Mangerson is the Head of Municipal Portfolio Management and a Portfolio Manager for the municipal bond product suite at Loomis, Sayles & Company. She has 38 years of investment industry experience and joined Loomis Sayles in 2019 as part of the firm’s acquisition of McDonnell Investment Management, where she had most recently served as managing director and director of the municipal portfolio management team. In this role, Dawn managed the team responsible for developing and executing tax-exempt investment strategies for the company’s client portfolios. Previously, she was managing director and senior portfolio manager of the municipal client group. Prior to this, Dawn was managing director and fixed income portfolio manager at ABN AMRO/Chicago Capital Management, where she was responsible for actively managing both taxable and tax-exempt bond portfolios for institutional, mutual fund and private clients. Prior to that, she was a fund manager for INVESCO Funds Group in Denver, where she was responsible for managing a long duration municipal bond fund. Dawn has also held portfolio management positions at NationsBank and Stein Roe & Farnham. She earned a BS in Finance from DePaul.

Latest Insights by Dawn Mangerson

Alpha Engine Perspectives
February 10, 2026 • 15 min read

Fixed Income Unscripted: Real Talk on Market Narratives & Dynamics

Loomis Sayles investment professionals share their candid thoughts on the forces driving the cycle, the implications for credit and the most compelling[…]