Our Team
Purposeful and passionate
Inquisitive problem solvers working for you
We’re passionate about combining data-driven financial insights with science, mathematics, and economics to address your most complex investment challenges.

Dr. Patrick Welton
Founder & Chief Investment Officer

Guillaume Detrait
President & Chief Risk Officer

Todd Merrell, CPA, CA
Chief Financial Officer

Emily (Bowers) Fry, CAIA
Head of Trading Operations & Oversight

Alexandra Burke
Head of Software Engineering

Dr. Oren Rosen, PhD, CAIA
Portfolio Manager, Systematic Macro and Trend Strategies

Dr. François Chevallier-Gravezat, PhD
Research Strategist, Machine Learning Strategies

Purva Chhabra, CFA
ESG Data Analyst, Trader

Adam Roach, CAIA
Senior Quantitative Developer

Matthieu Claudel
Research Strategist, Systematic Macro

Rushui Guan
Senior Software Architect

Fiona Wu
Senior Software Engineer

Katie He
Quantitative Analyst

Christopher Keenan
Director of Marketing

William Marr
Senior Managing Director, Wealth Management Group

Scott H. Merkel, CFA
Senior Managing Director, Portfolio Solutions

Sebastian E. “Sam” Cassetta
Senior Managing Director, International

David Nowlin, CRCP
Chief Compliance Officer

Daniel Gallagher
Head of Operations and Investor Services

Hunter Leighton
Chief Information Security Officer and Head of Infrastructure

Debbie Pyles
Senior Associate, Accounting
Board of Directors

Annette Welton
Board Chair

Don Putnam
Board Member

Mel Lindsey, CFA
Board Observer

Arthur F. Bell, Jr., CPA
Board Member

Guillaume Detrait
Board Member

Dr. Patrick Welton
Board Member