+ IRVIN KESSLER - Founding and Managing Partner

As a Founding Partner of Walleye, Mr. Kessler is primarily involved in setting the strategic direction of the firm. Mr. Kessler is also the founding member and Chief Investment Officer of Provident Advisors LLC, which is a registered investment adviser that provides discretionary management services to private funds.

Prior to co-founding Walleye in 2005 and founding Provident Advisors LLC in 2002, Mr. Kessler was CEO and CIO of Deephaven Capital Management, a multi-strategy hedge fund he co-founded in 1994. Mr. Kessler founded and co-founded several other companies in the past. In 1995, he co-founded Arbitrade, a global market maker in exchange traded derivatives. When Arbitrade and Deephaven were sold to Knight Trading Group in 2000, Mr. Kessler joined Knight’s executive oversight committee.

Mr. Kessler also co-founded Kessler-Asher Group in 1986, a firm that offered clearing, training, and financial backing to professional traders. The firm was sold to Spear, Leeds & Kellogg in 1998. He also founded Provident Real Estate Advisors to invest in distressed real estate. PREA began purchasing and managing single family homes for rent in 2009. These portfolios morphed into a public REIT, Silver Bay Realty Trust Corp. (NYSE: SBY), of which Mr. Kessler was one of the founders and currently serves as Chairman of the Board of Directors.

Mr. Kessler began his career as a floor trader in 1978, trading and making markets in equity and index options, treasuries, foreign exchange and grains on the CBOE, CBOT, and CME until 1990. He was elected to the Board of Directors of the CBOE and Cincinnati Stock Exchange in 1988.

+ ANDREW CARNEY - Partner, Chief Executive Officer

Mr. Carney has been with Walleye since 2006, and a Partner since 2015. He has been an integral part of building Walleye’s US options market making business since its inception. As CEO, Mr. Carney oversees all aspects of the firm’s activities, with operational responsibility for monitoring and maintaining firm-wide risk levels and controls.

Prior to joining Walleye, Andy was an actuary at Towers Watson (formerly Towers Perrin). Andy graduated magna cum laude from Luther College with a B.A. in Mathematics/Statistics. Additionally, he is an Associate in the Society of Actuaries.

+ MARK ZELDIS - Partner, Head of Technology

Mr. Zeldis has been with the Walleye since 2005, and a Partner since 2015. He has been instrumental in designing and developing the firm’s competitive technology infrastructure as well as some of its trading strategies.

As a Partner, Mark continues to manage the infrastructure and support needs of the trading groups. Prior to joining Walleye, Mr. Zeldis was Vice President at Lehman Brothers in Equities Technology. He was responsible for reengineering the company’s Position/PNL/Risk system and in providing assistance in platform and logic development behind Lehman’s execution strategies.

Early on in his career, Mr. Zeldis founded SeekImage. Here, he was able to invent and develop algorithms behind content-based image retrieval and recognition on a large scale. Mr. Zeldis graduated from Brown University with a B.S. in Computer Science.

+ WILL ENGLAND - Partner, Head of Twin Coves' Strategy Group

Mr. England joined Walleye in 2013 and became a Partner in 2017. As head of the Twin Coves group, he leads a team of quantitative researchers developing statistical arbitrage strategies in global equities and futures markets.

As a Partner, Mr. England is responsible for overseeing Walleye’s fundraising activities as well as identifying strategic opportunities for the firm. Will began his career as a Quantitative Researcher for the AHL division of London-based Man Group Plc, researching and implementing algorithmic trading strategies across global futures and equity instruments.

Will earned a BSE in Operations Research and Financial Engineering from Princeton University (Academic All-Ivy honors) and a Master’s degree in Mathematical and Computational Finance from Oxford University. Throughout his time at Princeton and Oxford, Will was an accomplished rower, appearing in multiple World Championships for the U.S. National Team and winning the Oxford-Cambridge Boat Race.

+ MARK LYONS - Partner, Trader

Mr. Lyons is a Partner and founding member of Walleye. As a Partner, he has operational responsibility for monitoring and maintaining firm-wide risk levels and controls. He has been working with Mr. Kessler since 1984 and was also a Partner in Arbitrade.

Mr. Lyons was the head equity and index trader at Arbitrade from 1997 through 2005, as its ownership transferred to Knight and Citigroup, respectively. Mr. Lyons’ index group was in the top two in contract volume traded on the CBOE and the Chicago Mercantile Exchange for seven consecutive years.

Mr. Lyons originally was with Mr. Kessler as a trader with the Kessler Asher Group from 1984 to 1996 in Chicago on the CBOE, in New York on the Amex, and in Frankfurt Germany on the DTB.

+ PAUL MATTSON - Partner, Trader

Mr. Mattson joined Walleye in 2005 and became a Partner in 2017. Prior to joining the Walleye, Mr. Mattson had spent more than five years working for Towers Watson (formerly Towers Perrin) where he worked as a consulting actuary for large pension plans.

Mr. Mattson graduated from the University of Minnesota with a B.S. in Mathematics and a B.S. in Economics. He is a CFA charterholder.

+ MARK TUSLER - Chief Financial Officer

Mr. Tusler joined Walleye in 2005, and is responsible for accounting, finance, operations, tax and regulatory reporting requirements for each of the firm’s domestic and international entities.

Prior to joining Walleye, he had spent more than eight years in accounting capacities for multi-strategy hedge fund EBF & Associates, NRG Energy, and Ernst & Young.

Mr. Tusler graduated magna cum laude from University of Minnesota at Mankato with a B.S. in Accounting and Business Administration. He also earned a full scholarship to the University of Denver, where he received a Masters in Taxation.

+ JIM MOELLER - General Counsel

Mr. Moeller has been General Counsel and Chief Legal Officer of Walleye since January 2015. He manages the firm's legal department and is responsible for legal affairs of the company.

He is an integral part of company decision making in all areas, including regulatory, compliance, strategic direction and risk management. Prior to joining Walleye, Mr. Moeller was Assistant General Counsel of Advantus Capital Management, a registered investment adviser based in St. Paul, Minnesota, that focused on institutional asset management.

Prior to his work at Advantus, Mr. Moeller was an associate attorney in the corporate department of Dorsey & Whitney LLP, based in Minneapolis. Mr. Moeller received a J.D. from The George Washington University Law School in Washington, DC and a B.S., majoring in Finance, from the University of Minnesota’s Carlson School of Management.

+ ADIL ELAMRI - Chief Compliance Officer

Mr. Elamri is a specialist in derivative products and is responsible for oversight of regulatory compliance for all Walleye entities and affiliates.

Prior to joining the firm in 2009, he served as a Senior Compliance Officer at Citigroup.

From 2002 until 2005, Mr. Elamri worked in the Market Surveillance Department of the International Securities Exchange in New York. Mr. Elamri earned a B.A. in Finance from the Institute of High Studies of Management in Casablanca, Morocco, and a Master of International Business from Jacksonville University.

+ KEVIN MURPHY - Research Consultant to Twin Coves

Dr. Murphy is a research consultant to Twin Coves. Prior to beginning work with the Twin Coves group at Walleye in 2013, he was a co-founder of Axiom Investment Advisors, a quantitative hedge fund primarily focused on FX, which reached a peak AUM of over $1B.

He also serves as the George J. Stigler Distinguished Service Professor of Economics at the University of Chicago Booth School of Business and was the first professor at a business school to be chosen as a MacArthur Fellow. In addition to his position at the University of Chicago, Kevin works as a faculty research associate for the National Bureau of Economic Research. A fellow of the Econometric Society and an elected member of the American Academy of Arts & Sciences, Kevin was a John Bates Clark Medalist in 1997.

He has received fellowships from the Earhart Foundation, the Sloan Foundation, and the Friedman Fund. Kevin is also the author of two books and many academic articles. His writing also has been published in numerous mainstream publications including the Boston Globe, the New York Times, the Chicago Tribune, and two Wall Street Journal articles coauthored by Nobel laureate Gary Becker.

He earned his PhD in 1986 from the University of Chicago after graduating from the University of California at Los Angeles with a bachelor's degree in economics in 1981 and joined the Chicago Booth faculty in 1984.