Biography

SĆ©bastien AndrĆ© is a Portfolio Manager on the Structured Finance Team at Loomis, Sayles & Company, where he co-manages a suite of Euro ABS products. He joined Loomis Sayles in 2024 from Ostrum Asset Management, where he was a structured credit investment fund manager and analyst responsible for European ABS, CLOs and covered bond investments. Previously, SĆ©bastien was an ABS fund manager and analyst at Natixis Investment Managers. Prior to that, he was an ABS quantitative and surveillance analyst at IXIS Asset Management responsible for credit analysis of European ABS & CLO investments. Prior to this, SĆ©bastien was a credit risk manager at CDC IXIS Asset Management Advisors. He began his career as a business analyst at Carat France. SĆ©bastien earned a master’s degree in applied mathematics for social sciences and a master’s degree in finance engineering and statistics from Paris Dauphine University.

Latest Insights by SƩbastien AndrƩ

Alpha Engine Perspectives
May 5, 2026 • 16 min read

European ABS: A Generational Allocation Shift?

European ABS markets are on the verge of a generational shift. In a new article from Natixis Investment Managers, SĆ©bastien AndrĆ©, Euro[…]
Structured Finance
Alpha Engine Perspectives
May 5, 2026 • 15 min read

European ABS: No Losses for a Quarter Century and a Proven Inflation-Buster

Volatility and inflation pose significant challenges for investors today. In a new article for Natixis Investment Managers, SĆ©bastien AndrĆ©, Euro ABS Portfolio[…]
Structured Finance
Alpha Engine Perspectives
October 17, 2025 • 2 min read

Tracking a Likely Expansion of the European Securitisation Market

The Loomis Sayles Structured Finance Team discusses new legislation that they believe has the potential to unlock significant investments and spur growth[…]
Structured Finance