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](https://www.welton.com/wp-content/uploads/2022/09/Patrick_Welton.png)
Dr. Patrick Welton
Founder & Chief Investment Officer
![Guillaume Detrait](https://www.welton.com/wp-content/uploads/2021/06/Guillaume-Detrait-v2.jpg)
Guillaume Detrait
President & Chief Risk Officer
![Todd Merrell, CPA, CA](https://www.welton.com/wp-content/uploads/2022/09/Todd_Merrell.png)
Todd Merrell, CPA, CA
Chief Financial Officer
![Emily Fry, CAIA](https://www.welton.com/wp-content/uploads/2022/09/Emily_Bowers-1.png)
Emily Fry, CAIA
Head of Trading Operations & Oversight
![Alexandra Burke](https://www.welton.com/wp-content/uploads/2022/09/Alexandra_Burke-1.png)
Alexandra Burke
Head of Software Engineering
![Dr. Oren Rosen, PhD, CAIA](https://www.welton.com/wp-content/uploads/2022/09/Oren_Rosen.png)
Dr. Oren Rosen, PhD, CAIA
Portfolio Manager, Systematic Macro and Trend Strategies
![Dr. François Chevallier-Gravezat, PhD](https://www.welton.com/wp-content/uploads/2022/09/Francois_Chevallier-1.png)
Dr. François Chevallier-Gravezat, PhD
Research Strategist, Machine Learning Strategies
![Purva Chhabra, CFA, CAIA](https://www.welton.com/wp-content/uploads/2022/09/Purva_Chhabra-1.png)
Purva Chhabra, CFA, CAIA
ESG Data Analyst, Trader
![Adam Roach, CAIA](https://www.welton.com/wp-content/uploads/2022/09/Adam_Roach.png)
Adam Roach, CAIA
Senior Quantitative Developer
![Matthieu Claudel](https://www.welton.com/wp-content/uploads/2022/09/Matthieu_Claudel-1.png)
Matthieu Claudel
Research Strategist, Systematic Macro
![Rushui Guan](https://www.welton.com/wp-content/uploads/2022/10/Rushui_Guan.png)
Rushui Guan
Senior Software Architect
![Fiona Wu](https://www.welton.com/wp-content/uploads/2022/12/fiona_wu.png)
Fiona Wu
Senior Software Engineer
![Katie He](https://www.welton.com/wp-content/uploads/2022/09/Katie_He-1.png)
Katie He
Quantitative Analyst
![Sion Daniel](https://www.welton.com/wp-content/uploads/2023/08/Sion_Daniel.png)
Sion Daniel
Quantitative Trading Analyst
![Christopher Keenan](https://www.welton.com/wp-content/uploads/2020/11/Chistopher-Keenan.jpg)
Christopher Keenan
Director of Marketing
![William Marr](https://www.welton.com/wp-content/uploads/2023/09/bill_marr_2.png)
William Marr
Senior Managing Director, Wealth Management Group
![Scott H. Merkel, CFA](https://www.welton.com/wp-content/uploads/2022/10/Scott_Merkel.png)
Scott H. Merkel, CFA
Senior Managing Director, Portfolio Solutions
![Sebastian E. “Sam” Cassetta](https://www.welton.com/wp-content/uploads/2020/11/Sam-Cassetta.jpg)
Sebastian E. “Sam” Cassetta
Senior Managing Director, International
![David Nowlin, CRCP](https://www.welton.com/wp-content/uploads/2020/11/David-Nowlin.jpg)
David Nowlin, CRCP
Chief Compliance Officer
![Daniel Gallagher](https://www.welton.com/wp-content/uploads/2022/10/Dan_Gallagher.png)
Daniel Gallagher
Head of Operations and Investor Services
![Hunter Leighton](https://www.welton.com/wp-content/uploads/2023/04/Hunter_Leighton.png)
Hunter Leighton
Chief Information Security Officer and Head of Infrastructure
![Debbie Pyles](https://www.welton.com/wp-content/uploads/2020/11/Debbie-Pyles.jpg)
Debbie Pyles
Senior Associate, Accounting
Board of Directors
![Annette Welton](https://www.welton.com/wp-content/uploads/2020/11/Annette-Welton.jpg)
Annette Welton
Board Chair
![Don Putnam](https://www.welton.com/wp-content/uploads/2021/05/DonPutnam.jpg)
Don Putnam
Board Member
![Mel Lindsey, CFA](https://www.welton.com/wp-content/uploads/2022/03/melvin-lindsay-v2.png)
Mel Lindsey, CFA
Board Observer
![Arthur F. Bell, Jr., CPA](https://www.welton.com/wp-content/uploads/2021/05/ArtBell.jpg)
Arthur F. Bell, Jr., CPA
Board Member
![Guillaume Detrait](https://www.welton.com/wp-content/uploads/2021/06/Guillaume-Detrait-v2.jpg)
Guillaume Detrait
Board Member
![Dr. Patrick Welton](https://www.welton.com/wp-content/uploads/2022/09/Patrick_Welton.png)
Dr. Patrick Welton
Board Member