The Executive Team

Matthew Wosk

Matthew Wosk is a founder, partner, and Chief Executive Officer of PROFICIO CAPITAL PARTNERS.  Matthew holds a Masters in Business Administration from Harvard Business School, and an undergraduate degree in Business from the University of Western Ontario.  Matthew spent 15 years on Wall Street working for both Goldman Sachs and Credit Suisse.   At Credit Suisse, he rose through the ranks to quickly become a Managing Director in the equity division.  Most recently, Matthew was responsible for managing Credit Suisse’s entire institutional equity team in Boston.  Matthew has experience in a diverse range of equity products from single stock equities, ETFs, indexes, derivatives, prime brokerage, trading, and capital market activities.  In addition, Matthew worked closely with the Credit Suisse Private Bank and received five intra-divisional awards during his tenure.  Matthew has worked with a variety of clients including hedge funds, insurance companies, pension funds, endowments, mutual funds, and other institutional money managers.  His clients typically managed assets ranging from $1billion on the low end, to well over $2 trillion. Matthew currently serves on the Board of Advisors for The New England Center for Children – a school for autism (NECC).  In addition, Matthew currently serves as the Co-Chair of the  Financial Advisory Committee for Combined Jewish Philanthropies (CJP) in Boston.


Bob Haber

Bob Haber is a founder, partner, and Chief Investment Officer of PROFICIO CAPITAL PARTNERS. Bob was most recently the CEO and CFO of Haber Trilix Advisors. Previously, he was the Chief Investment Officer for Fidelity Investments Canada (12 year tenure) and Head of Equities for Pyramis Global Advisors, the institutional arm of Fidelity Investments. Bob was also portfolio manager of both the Fidelity Canadian Disciplined Equity Fund and the Fidelity Canadian Balanced Fund since their inception in 1998, until March 2009. These funds each earned a prestigious Lipper Fund Award as the top-performing fund of the decade in each of their respective Lipper categories. Before joining Fidelity, Bob was a management consultant at McKinsey, and a chemical and engineering analyst for Exxon Corporation. Bob holds a Masters in Business Administration from Harvard Business School, a Bachelor’s and Master’s of Science in Chemical Engineering from Tufts University, and is a Chartered Financial Analyst. Bob is currently an owner of the NBA Boston Celtics and member of its Board of Directors.


Justin Sussman

Justin Sussman is a partner and Chief Operating Officer of PROFICIO CAPITAL PARTNERS.  Justin spent 12 years on Wall Street, working for both Goldman Sachs and Credit Suisse.  At Credit Suisse, he was a Director in their Equities Division based in Boston.  Most recently, Justin was responsible for Senior Global Institutional Equities coverage of the largest Mutual Funds, Pension Funds, and Hedge funds throughout the Boston and Toronto markets.  Justin has extensive knowledge of a variety and diverse range of equity products, including, single stocks, ETFs, indexes, derivatives, prime brokerage, and capital market activities.  Before Credit Suisse, Justin worked in New York at Goldman Sachs in their specialist trading division, where he sat on the New York Stock Exchange in various trading roles.  Justin holds a BSBA in Business Management from Bucknell University where he was an All-American and Academic All-American on their Nationally-ranked Men’s Lacrosse team.  He is also a member of the Bucknell Athletics Hall of Fame.


Lauren Maughan

Lauren Maughan is the Head of Client and Business Development of PROFICIO CAPITAL PARTNERS.  Lauren has extensive experience in both client-focused sales management and internally-focused business development. Most recently, Lauren was a Director in Global Corporate Development at Willis Towers Watson, where she worked with the firm’s Operating Committee to shape the combined business portfolio and with senior executives to generate strategy and guide implementation across all divisions and geographies. Lauren previously spent more than eight years on Wall Street, working for Lehman Brothers and Credit Suisse in various sales, client strategy, and senior management advisory roles across Fixed Income and Equities. She holds a Bachelors of Business Administration in Finance and Bachelors of Accountancy from Villanova University.



Andy Wester

Andy Wester is the senior investment analyst of PROFICIO CAPITAL PARTNERS. Andy holds a Bachelor’s of Business Administration degree from the Isenberg School of Management at the University of Massachusetts – Amherst with a concentration in Accounting. Andy spent two years interning and later working full-time for State Street Bank in their Global Services division with several of State Street’s institutional mutual fund clients. Andy successfully passed his CFA Level 1 Exam in December of 2015, his CFA Level 2 Exam in June of 2016, and is currently a CFA level 3 Candidate.proficio picture

Gregory Burke

Gregory Burke is the junior investment analyst of PROFICIO CAPITAL PARTNERS. Greg holds a Bachelor’s of Business Administration from Northeastern University, with a concentration in Finance and Economics. While at Northeastern, Greg completed 3 six-month internships at Wellington Management Company, 2 of which were spent working with Wellington’s fixed income trading team in Boston and London. Greg is currently a candidate for CFA Level 1.

David Goodman

David Goodman is the CPA of PROFICIO CAPITAL PARTNERS. David performs all finance, accounting, & tax functions for the company. He acts as Controller and manages all functions including accounting systems and account structures.   David also handles all facets of payroll.   David holds an MSA in Accounting from Bentley College and graduated Magna Cum Laude, Philosophy and Political Science from Boston University.  Prior to Proficio, David has held several senior financial positions with Olde Northeast Ltd, 7-Eleven, Christy’s Market, and KPMG.



Michelle Silk Aronson

Michelle Silk Aronson is the Office Manager of PROFICIO CAPITAL PARTNERS.  Michelle manages all general office duties including account payable/recievable,  sourcing , negotiating and purchasing office equipment and supplies. Michelle spent 15 years in the advertising and marketing business on both the client and agency sides. She worked with large companies including Arnold Brand Promotions and Reebok International. Additionally she spent several years as a Business Operations Manager in a smaller owner/operator wholesale produce business. Michelle received her Bachelor of Arts from the University of Miami in Coral Gables, FL.


Peter Kronberg

Peter Kronberg is the Chief Compliance Officer & General Counsel of PROFICIO CAPITAL PARTNERS.

Prior to joining Proficio, he served as Chief Compliance Officer and General Counsel for Haber Trilix Advisors, LP. Prior to joining Haber, he served as Chief Compliance Officer, General Counsel, Chair of the Management Committee and Financial Officer of Ten Asset Management, Inc. Prior to that, Mr. Kronberg was Vice President of Citi Fund Services where he headed a team that provided administrative and regulatory services related to establishing and maintaining investment companies, fund mergers and reorganizations, proxies, registration statements, fund governance, exemptive applications, no-action letters and legal issues concerning investment company operations and services. Prior to joining Citi in January 2007, Mr. Kronberg was Director and Counsel in the Mutual Fund Administration group of Investors Bank & Trust. Periodically, Mr. Kronberg also serves as general counsel and consultant for small to mid-sized biotechnology, green energy, manufacturing and design companies and as a hedge fund consulting CCO. He is an adjunct faculty member of Tufts University where he teaches a business law course in the Economics Department.

Mr. Kronberg received his Juris Doctorate from Boston University School of Law and his Bachelor of General Studies and Bachelor of Fine Arts Degrees from The University of Kansas. He has been admitted to practice law in the Commonwealth of Massachusetts and the First Circuit since 1988. He lives with his family in Newton.