Leadership

Nathaniel August
Ward Dietrich
Philip Lee
Cameron Ross

Investment

Steve Schembri
Ryan Polisi
Jawaad Mahmood
Patrick Manning
Tiffany Marchell
Jim Tse
Alex Warmath

Business Operations

Jessica Cass
Sean Holloway
Ryan Casey
Feng Li
Ben Ling
Andrew Rollins
Joel Friedman
Brigida Vanegas
 

Team

Nathaniel August
President and Chief Investment Officer

Mr. August founded Mangrove in 2010. Prior to Mangrove, Mr. August was a director at White Eagle Partners, a senior analyst at Brahman Capital Partners, an investment analyst at K Capital Partners, and an analyst at Goldman Sachs. Mr. August received his bachelor’s degree from Brown University.

Ward Dietrich
Chief Operating Officer and Chief Compliance Officer

Mr. Dietrich joined Mangrove in April 2011. Prior to joining Mangrove, Mr. Dietrich was a principal at Madison Capital Management. Mr. Dietrich received his bachelor’s degree from Pratt Institute and his master’s degree from New York University.

Philip Lee
Executive Managing Director, Senior Analyst

Mr. Lee joined Mangrove in June 2011. Prior to joining Mangrove, Mr. Lee was a senior analyst at Brightpoint Capital Partners, an investment analyst at Overland Park Capital, an analyst at Brahman, and an investment associate at Citadel Investment Group. Mr. Lee received his bachelor’s degree from the University of Pennsylvania.

Cameron Ross
Senior Managing Director, Director of Research

Mr. Ross joined Mangrove in April 2015.  Prior to joining Mangrove, Mr. Ross was an investment banking analyst at Credit Suisse.  Mr. Ross received his bachelor’s degree from Columbia University.

Steve Schembri
Senior Analyst

Mr. Schembri joined Mangrove in January 2022. Prior to joining Mangrove, Mr. Schembri was a partner and head of research at Marble Ridge, an analyst at Glade Brook, an analyst at Highland Capital, and an analyst at Wachovia Securities. Mr. Schembri received his bachelor’s degree from Arizona State University and his master’s degree from the University of Pennsylvania.

Ryan Polisi
Senior Analyst

Mr. Polisi joined Mangrove in February 2022. Prior to joining Mangrove, Mr. Polisi was a managing director at York Capital Management, a principal at Realm Partners, and an associate at Lehman Brothers. Mr. Polisi received his bachelor’s degree from Yale University.

Jawaad Mahmood
Head of Quantitative Investments

Mr. Mahmood joined Mangrove in May 2024. Prior to joining Mangrove, Mr. Mahmood provided quantitatively oriented consulting services to investment firms. Earlier in his career, he was the portfolio manager at Systematic Research Advisors and a senior quantitative associate at Ziff Brother’s Investments. Mr. Mahmood received his bachelor’s degrees from the University of Pennsylvania.

Patrick Manning
Investment Analyst

Mr. Manning joined Mangrove in May 2023.  Prior to joining Mangrove, Mr. Manning was a research analyst at 801 West Capital.  Mr. Manning received his bachelor’s degree from Oregon State University and his master’s degree from Columbia Business School.

Tiffany Marchell
Investment Analyst

Dr. Marchell joined Mangrove in December 2023. Prior to joining Mangrove, Dr. Marchell was a biotechnology equity research associate at William Blair and a gene therapy technician at Weill Cornell Medical College. Dr. Marchell received her bachelor’s degree in biochemistry from Vassar College and her doctorate in immunology from the University of Chicago.

Jim Tse
Investment Analyst

Mr. Tse joined Mangrove in May 2024. Prior to joining Mangrove, Mr. Tse was a private equity associate at Apollo Global Management and an investment banking analyst at Moelis & Company. Mr. Tse received his bachelor’s degree from the University of Pennsylvania.

Alex Warmath
Investment Analyst

Mr. Warmath joined Mangrove in September 2024. Prior to joining Mangrove, Mr. Warmath was an analyst at Analysis Group. Mr. Warmath received his bachelor's degree from the University of Chicago

Jessica Cass
Head of Investor Relations

Ms. Cass joined Mangrove in May 2023. Prior to joining Mangrove, Ms. Cass was the chief operating officer at SomeraRoad, the director of investor relations at Jones Road Capital Management, and an investor relations and marketing professional at Gruss Capital Management. Ms. Cass received her bachelor’s degree from Georgetown University.

Sean Holloway
Controller

Mr. Holloway joined Mangrove in June 2021.  Prior to joining Mangrove, Mr. Holloway was a director of finance at Quest Partners, the controller at Aidennlair Capital Management, a controller at LionEye Capital Management, and an assistant vice president at Citi Hedge Fund Services.  Mr. Holloway received his bachelor’s degree from The Ohio State University and is a licensed CPA.

Ryan Casey
Trader

Mr. Casey joined Mangrove in June 2018. Prior to joining Mangrove, Mr. Casey was a trader at Stelliam Investment Management, an equity sales-trader at Wolfe Research Securities, a cross asset trader at AIG Advisor Group, and a fixed income junior analyst/trader at Cohen & Company Securities. Mr. Casey received his bachelor’s degree from Syracuse University.

Feng Li
Assistant Controller

Ms. Li joined Mangrove in July 2018. Prior to joining Mangrove, Ms. Li was a tax associate at RSM US LLP. Ms. Li received her bachelor's and master’s degrees from Baruch College and is a licensed CPA.

Ben Ling
Assistant Controller

Mr. Ling joined Mangrove in July 2024. Prior to joining Mangrove, Mr. Ling was an assistant controller at P. Schoenfeld Asset Management, a controller at Bloom Tree Partners and a financial controls manager at Sculptor Capital Management. Mr. Ling received his bachelor’s degree from Hofstra University and is a licensed CPA.

Andrew Rollins
Assistant Trader and Operations Associate

Mr. Rollins joined Mangrove in May 2022. Prior to joining Mangrove, Mr. Rollins was an operations associate at Clearfield Capital Management, a senior fund accountant at Highline Capital Management, and a fund accountant at SEI Investments. Mr. Rollins received a bachelor’s degree from the University of Arizona.

Joel Friedman
Senior Accountant

Mr. Friedman joined Mangrove in July 2023. Prior to joining Mangrove, Mr. Friedman was a senior audit associate at KPMG. Mr. Friedman received his bachelor's degree from Touro University.

Brigida Vanegas
Office Manager

Ms. Vanegas joined Mangrove in June 2022. Prior to joining Mangrove, Ms. Vanegas held a number of administrative roles at organizations including GGCP, Owl Creek, and Point 72. Ms. Vanegas received her bachelor’s degree from Mercy College.