About Tetragon
Directors & Management
Management Team
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Paddy Dear
Founder and Principal of Polygon Credit Management LP
Director of Tetragon Financial Group
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Mr. Dear co-founded Polygon Investment Partners LLP in 2002 (with Reade Griffith and Alex Jackson) and Polygon Credit Management LP in 2005. He was previously managing director and the global head of Hedge Fund Coverage for UBS Warburg Equities. As global head of Hedge Fund Coverage and Chairman of the Global Hedge Fund Committee, Mr. Dear was responsible for the delivery of all of the bank’s products and services to hedge fund clients globally. He was on the board of UBS Netherlands, and was a member of both the European Equity Business Committee and the Extended Global Equity Business Committee. Prior to this, Mr. Dear was co-head of European sales trading, execution, arbitrage sales and flow derivatives. He had been with UBS since 1988, including six years in New York. Mr. Dear was in equity sales at Prudential Bache before joining UBS. Prior to working in investment banking, he was a petroleum engineer with Marathon Oil Co. Mr. Dear holds an undergraduate degree in Petroleum Engineering from Imperial College in London. His responsibilities at Polygon include risk management, overseeing Polygon’s non-trading activities, managing investment bank interfaces and relationships and new business development.
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Reade Griffith
Founder and Principal of Polygon Credit Management LP
Director of Tetragon Financial Group
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Mr. Griffith co-founded Polygon Investment Partners LLP in 2002 (with Alex Jackson and Paddy Dear) and Polygon Credit Management LP in 2005. He was previously the founder and former chief executive officer of the European office of Citadel Investment Group, a multi-strategy hedge fund that he joined in 1998. He was a partner and senior managing director responsible for running the Global Event Driven arbitrage team in Tokyo, London and Chicago for the firm. He was previously with Baker, Nye, where he was an analyst working on an arbitrage and special situations portfolio. Mr. Griffith holds a JD degree from Harvard Law School and an undergraduate degree in Economics from Harvard College. He also served as an officer in the U.S. Marine Corps and left as a Captain following the 1991 Gulf War. At Polygon, he is primarily focused on the equity trading businesses, including merger arbitrage and event-driven arbitrage, trading and risk management.
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Alex Jackson
Founder and Principal of Polygon Credit Management LP
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Mr. Jackson co-founded Polygon Investment Partners LLP in 2002 (with Reade Griffith and Paddy Dear) and Polygon Credit Management LP in 2005. He was previously the chief executive officer of the European office of Highbridge Capital Management. During his nine years at Highbridge, Mr. Jackson invested and supervised the Asian and European convertible and credit books and provided insight and input to the U.S. team. Prior to joining Highbridge, he worked for Taylor & Company in Texas where he was responsible for equity derivative investments in Japan. He started his career at Paine Webber. Mr. Jackson holds an MBA degree from Columbia University and an undergraduate degree in Mathematics from Tufts University.
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Jeff Herlyn
Founder and Principal of Polygon Credit Management LP
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Mr. Herlyn joined Polygon Credit Management LP as a principal upon its formation in May 2005. Prior to that, he was a managing director and co-head (with Michael Rosenberg) of the Global CDO Group at UBS AG, responsible for a group focused on structuring, originating and distributing CDOs in addition to managing the secondary CDO trading desk. Prior to joining UBS, he was a managing director at JPMorgan and a co-head (also with Mr. Rosenberg) of the firm’s North American CDO Group. Previously, Mr. Herlyn was a managing director at CIBC World Markets where he held various positions within the North American Capital Markets Group, including National Sales Manager and head of the U.S. Government Primary Dealer Trading Desk. He also served on the firm’s benefits and compliance committees. Prior to joining CIBC, Mr. Herlyn was a Fixed Income sales person at Chase Securities and Manufacturers Hanover Securities Corp. Before joining the Manufacturers Fixed Income Sales Group, he was a Corporate Lending Officer for Manufacturers Hanover Trust Co. responsible for Large and Middle Market Lending. Mr. Herlyn holds an MBA from Fordham University and a Bachelor in Administration from St. Lawrence University.
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Michael Rosenberg
Founder and Principal of Polygon Credit Management LP
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Mr. Rosenberg joined Polygon Credit Management LP as a principal upon its formation in May 2005. Prior to that, he was a managing director and co-head (with Jeff Herlyn) of the Global CDO Group at UBS AG, responsible for a group focused on structuring, originating and distributing CDOs in addition to managing the secondary CDO trading desk. Prior to joining UBS, he was a managing director at JPMorgan and a co-head (also with Mr. Herlyn) of the firm’s North American CDO Group. Prior to working in investment banking, Mr. Rosenberg worked in the mortgage banking industry both in the United States and internationally. He helped start the first private mortgage bank in Poland and worked with various private and public institutions in the development of a mortgage banking market in the former Soviet Union. Mr. Rosenberg holds an MBA degree from George Washington University and an undergraduate degree in Finance from the University of Delaware.
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David Wishnow
Founder and Principal of Polygon Credit Management LP
Director of Tetragon Financial Group
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Mr. Wishnow joined Polygon Credit Management LP as a principal upon its formation in May 2005. Prior to that, he was a managing director and head of European and Asian Hedge Company Client Management for the Fixed Income, Rates and Currency (FIRC) division at UBS AG in London. Mr. Wishnow chaired FIRC’s Global Hedge Fund Committee, was co-chairman of the European Distribution Committee and a member of the European Management Committee. Prior to these positions, he was European co-head of UBS’s Banks/Insurance Credit Fixed Income Sales and global head of Short Duration Sales, responsible for the distribution of financing, money market and short-term fixed income products. Previously, Mr. Wishnow served as global head of Fixed Income Collateral Trading/Financing in London, global head of Money Markets and Repurchase Transactions in New York and was treasurer and head of trading for UBS (Canada) in Toronto. Prior to joining UBS, he was head of Short Date Derivatives for Midland Montagu. Mr. Wishnow holds an undergraduate degree in Business Administration with a concentration in Finance from the University of Vermont.
Independent Directors
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Rupert Dorey
Independent Director
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Mr. Dorey, who is based in Guernsey, has over 22 years of experience in debt capital markets, specializing in credit-related products, including derivative instruments. Mr. Dorey’s expertise is principally in the areas of debt distribution, origination and trading, covering all types of debt from investment grade to high yield and distressed debt. Mr. Dorey currently acts as a director on a number of hedge funds, fund of hedge funds and private equity funds. He was at Credit Suisse (and its predecessor firms) for 17 years from 1988 until 2006 and from 2000 until he left Credit Suisse, he was head of sterling credit sales. Previously, Mr. Dorey held a number of positions at Credit Suisse, including establishing Credit Suisse’s high yield debt distribution business in Europe, fixed income credit product coordinator for European offices and head of UK Credit and Rates Sales.
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David Jeffreys
Independent Director
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Mr. Jeffreys, who is based in Guernsey, provides directorship services to a small number of fund groups. From 1993 until June 2004, Mr. Jeffreys was managing director of Abacus Fund Managers (Guernsey) Limited, where he was involved with private client trust arrangements, corporate administration, pension schemes and fund administration. He was a board member of Abacus’ principal administration operating companies and served on the boards of various administrated client companies. Previously, Mr. Jeffreys worked as an auditor and accountant for 12 years with Coopers & Lybrand (and its predecessor firms). He has an undergraduate degree in Economics and Accounting from the University of Bristol and is a fellow of the Institute of Chartered Accountants in England and Wales.
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Byron Knief
Independent Director
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Mr. Knief is Managing Director of Court Square Capital Advisor, LLC. Since 1989, he has raised and invested over $3 billion of capital through a series of mezzanine and leveraged debt funds. Prior to 1989, he ran a variety of businesses for Citigroup in the United States, Europe, Canada and Latin America. Mr. Knief received an undergraduate degree from Northwestern University and an MBA from Columbia University. He has served as a director on the boards of several public and private companies. Current corporate board memberships include DavCo Restaurants, Inc., JAC Products, Inc., Olameter, Inc., Polygon Global Opportunities Fund and Polygon Global Opportunities Master Fund. Mr. Knief’s charitable board memberships include The Milbank Memorial Fund and The Mountain Top Arboretum.
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Lee Olesky
Independent Director
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Mr. Olesky is the president of Thomson TradeWeb and co-founder of the TradeWeb business, a fixed income electronic trading platform. He has over 17 years' experience in the global fixed income markets and seven years leading TradeWeb and another fixed income electronic brokering platform, BrokerTec, from start-up through to successful global businesses. Prior to his time managing electronic brokers, Mr. Olesky worked for seven years in a variety of management positions at Credit Suisse First Boston, most recently as chief operating officer for the Fixed Income division in the Americas. He has served on the boards of directors of a number of private companies, including: TradeWeb, BrokerTec and Coalition Development Limited, and on various Bond Market Association advisory committees. Mr. Olesky has a JD degree from the National Law Center at the George Washington University in Washington D.C. and an undergraduate degree in History from Tulane University. He also attended the University College in London as an undergraduate.
