Our Board

As President and CEO of South Street Securities Holdings Inc., Mr. Tabacchi directly oversees all aspects of the business, including strategy, credit, market and liquidity risk, infrastructure, technology and clearing, compliance, finance, accounting and controls. In 2000, he raised the venture capital and founded South Street as an independent repo broker dealer and began building and expanding the franchise of products. Today, South Street remains one of the largest independent repo dealers and has added asset management of an Agency Mortgage REIT, an MBS TBA derivative dealer franchise, a fintech fixed income processing company, and an equity sec lending business. In 2018, He also invested in and continues to mentor a Disabled Veteran Owned Small Business (DVOSB) and minority owned broker dealer called AmeriVet, which underwrites and distributes corporate debt and equity. He continues to look for opportunities to expand the South Street franchise in the mid-market dealer community.

Prior to founding South Street, Mr. Tabacchi joined Citicorp/Citibank in 1980. Over a period of 20 years he worked in various customer interface and business head positions within the Investment, Corporate, and Consumer Banking Divisions. In 1987 Mr. Tabacchi became the regional business manager for the Northeast Division of Citicorp Mortgage, Inc. In 1989, he was a Division Financial controller in Citicorp's North American Investment Bank. During 1990, Mr. Tabacchi was asked to manage the day-to-day operations of Citibank's Municipal Trust business. He revamped the product lines and packaged the business for sale, which was completed in 1992. He then joined the Finance Desk and was named Treasurer of Citicorp Securities in 1995, adding Co-Head responsibilities of the Primary Dealer Desk a short time later.

In addition to his Board responsibilities at South Street, ACM Trust REIT and AmeriVet, Mr. Tabacchi is Chairman of the Board of the Independent Dealer and Trader Association (IDTA) and is a member of BNYM’s GSS Industry Advisory Council. In 2021, Mr. Tabacchi was elected to the DTCC Board of Directors. Outside the office, he is Vice Chair of the Borough of Demarest Planning Board, a Trustee of the St. Joseph’s Catholic School Endowment Fund and a youth hockey coach for the Englewood Field Club’s ‘Learn to Play Hockey’ program.

Mr. Tabacchi graduated from Iona College with a Bachelor of Business Administration in Accounting in 1977 and the John G. Hagen School of Business with an MBA in 1981. Mr. Tabacchi is FINRA Series 7, 63, 27 and 24 registered

Mr. Flynn joined South Street Securities LLC as a Board member in 2021. He is an executive at Allianz Global Corporate & Specialty’s Alternative Risk Transfer line of business (Allianz) since 1998.  At Allianz, Mr. Flynn is responsible for Operations, Claims and Deal Management globally.

He has a wealth of experience in all facets of structured risk transactions both in insurance and financial product form, as well as finance and accounting. Mr. Flynn has been involved with South Street for more than 15 years when Allianz became a South Street shareholder and has helped the firm with structured debt solutions. Prior to joining Allianz, he worked as an accountant at Cap MAC, AIG and Scor.

Mr. Flynn holds a master’s degree in accounting from Binghamton University.

Art is a Senior Advisor to the executive team at Broadridge Financial Solutions, a leading global financial technology firm. As part of his role with Broadridge, he is Chairman of the Board of LQX, a Trade Finance full service company, and he also represents the firm as a member of the Board of Directors for LTX, a Broadridge Company.

He is an active member of the Board of Directors for South Street Securities, a FINRA member broker/dealer. He is also a Senior Adviser to IntraFi, formerly Promontory Interfinancial Network, as well as start up tech companies FinopSys and New Level Derivatives and NEST Global Solutions. In addition, from 2002 to 2019 was Vice Chairman and a member of the Board of Advisors of Promontory Interfinancial Network, the leading provider of FDIC-insured deposit placement services in the USA.

Art retired from Bank of New York Mellon in December 2014 as a member of the Executive Committee and Operating Committee of the Company and as Senior Executive Vice President and CEO of Global Markets, leading the company’s foreign exchange, capital markets and derivatives trading businesses worldwide. Prior to this role, Art served as Chief Executive Officer of Alternative, Broker-Dealer and the Treasury Clearance Groups, where he played a major role in the 2001 911 recovery and the 2008 credit crisis. Before joining The Bank of New York in 1998, Art was a principal of Morgan Stanley Asset Management (MSAM). Prior to this, he was a vice president at The Chase Manhattan Bank’s Global Investor Services group.

During his 36-year career in International Banking and Capital Markets, Art served on a number of boards and committees dedicated to delivering actionable solutions to issues facing the financial services industry. Among them: he assisted the Federal Reserve Bank of New York in designing and implementing critical liquidity facilities to support the banking system, he was the lead director of the Depository Trust & Clearing Corporation (DTCC), a director of the International Derivatives Clearing Group (IDCG), a member of the Treasury Market Practices Group (TMPG), the Tri-party Repurchase agreement Infrastructure Task Force formed by the Federal Reserve Payments System Risk (PSR) Committee, The Industry Working Group on Payments System Risk Policy Change, and The NewBank Working Group.

Art is Ex-Chairman and member of the Board of Directors of the Rutgers University Foundation and Chairman of the Board of Advisors of the Rutgers Business School; where he is also a co-adjutant professor in the Executive MBA program. He is also a member of the Board of Directors of the Saint Pio Foundation.

Art holds a B.A. in Business Administration from Rutgers College at Rutgers University and an M.B.A from Fairleigh Dickinson University. He lives in Rutherford New Jersey USA with his wife Terry and has two children, Matthew and Cara.

Mark is a member of the Opportunistic Credit team within BlackRock's Global Credit Group focusing on public and private credit investments in special situations, direct lending, and secondary markets. Mr. Lawrence has extensive experience investing across geographies and industries and invests in growing companies as well as stressed situations. While at BlackRock, Mr. Lawrence has worked across the platform to source, underwrite, invest and monetize in opportunities for the Opportunistic Credit business as well as the broader Alternatives, Credit and Global Fixed Income platforms.

Mr. Lawrence joined the firm in October 2016 and is based out of the BlackRock New York Headquarters. He is a voting member of the GCO Investment Committee.

Prior to joining BlackRock in 2016, Mr. Lawrence was a Managing Director at Apollo Global Management as a portfolio strategist and senior member of the Opportunistic Credit Team responsible for overseeing USD 15 billion of capital. Mr. Lawrence was responsible for investment sourcing, execution, and monitoring of private investments in direct lending and distress-for-control investment. Before his experience at Apollo, Mr. Lawrence was a Managing Director and senior analyst at Solus Alternative Asset Management from 2007 to 2012, a credit-focused hedge fund with USD 3 billion of assets under management. At Solus, Mr. Lawrence was responsible for identifying, analyzing, and valuing investments in a variety of industrial and basic materials sectors. Mr. Lawrence has experience in stressed and distressed investing including control transactions. Prior to Solus, Mr. Lawrence was a Managing Director and analyst at Stanfield Capital Partners from 2002 to 2007 and an associate at PricewaterhouseCoopers Securities from 1998 to 2002.

Mr. Lawrence is currently a member of the University of Washington College of Engineering Advisory Board and previously was on the advisory boards of University of Washington Chemical Engineering and Mendoza Graduate Alumni. In the past, he served on the board of Express Energy Services.

Mr. Lawrence earned a BS degree in Chemical Engineering from the University of Washington and an MBA from Mendoza College of Business at the University of Notre Dame.

Chairman of the Board, XL Capital Ltd.

Michael (Mike) served as Chairman of the Board of XL Capital Ltd since his appointment in April 1995. In addition to his role with XL Capital, he served on the Boards of Directors of Forest City Enterprises, Ohio; and Annuity & Life Re (Holdings), Ltd., Bermuda. Also, from July 1995 to year-end 2000, Mike was Co-Chairman of Inter-Atlantic Capital Partners, Inc., an investment banking firm. Mike began his finance career in 1961 with the Chase Manhattan Corporation and The Chase Manhattan Bank N.A.

In a career with Chase that spanned over 30 years, Mike held a number of progressive positions, culminating in his role as Chief Financial Officer and then as Chief Administrative Officer. He has also been active in a number of professional associations, including serving as Chairman of the Board of the Bank Administration Institute, Chairman of the American Bankers Association, Chief Financial Officers Division and a member of the Advisory Council to the Financial Accounting Standards Board.

In addition to his successful career in Commercial Banking, Mike also served with the US Marine Corps as a First Lieutenant from 1962 to 1963.Mike holds a B.B.A. in Marketing from the University of Notre Dame, and an M.B.A. with a major in Accounting from New York University.

Managing Partner of Pi Capital International LLC

Managing Partner of Pi Capital International LLC, a global advisory firm located in New York, NY. Pi Capital provides capital raising, mergers and acquisitions advisory, and general corporate advisory services to firms in the financial institutions, power generation, and industrial sectors around the globe. Securities are offered through an affiliate, Marco Polo Securities Inc. (member FINRA, SIPC).

Before founding Pi Capital, Steve was President and Head of Investment Banking at INTL FCStone Financial Inc. Prior, Steve was the founder, Chairman and CEO of the Provident Group, a boutique investment banking firm providing capital raising, M&A and other corporate finance advisory services to firms globally. Provident Group was acquired by INTL in 2010.

Prior to forming Provident in 1999, Steve was a Managing Director at Lehman Brothers holding various senior positions at the firm including:

Steve began his career at Fannie Mae. Steve graduated with a BA in Economics from the University of Maryland (1982) and a Master's Degree in Public Policy from the Kennedy School of Government at Harvard University (1984).

Before his retirement, Mr. Hlawaty was a partner at Milbank LLP where he focused on advising corporate clients on mergers & acquisitions, equity investments, restructurings and corporate governance. Mr. Hlawaty joined Milbank in 1990 and was a partner in the firm's Global Corporate group from 1998 until retiring at the end of 2020. Since 2021, Mr. Hlawaty has provided advisory and consulting services to clients in the financial services industry.

Mr. Hlawaty holds a BSFS degree from Georgetown University’s School of Foreign Service (1987) and a JD from the Fordham University School of Law (1990).

As former Head of Global Trading at BlackRock, Supurna oversaw the company’s Trading function across asset classes and regions, current. Supurna was responsible for driving innovation and setting the trading platform's strategic vision focused on growth and sustainable scalable trading solutions. Her business acumen across markets, reputation as an exceptional market structure specialist and leading with empathy resulted in developing and creating one of the most respected world class trading organizations. Supurna served as a member of the Global Operating Committee and the Investment Subcommittee.

Supurna's understanding of buy-side, sell-side, as well as electronic trading and technology, allows her to work toward industry solutions that work for both sides during this unique period of rapid change in the industry as it relates to trading. Externally, Supurna served two terms on the CFTC Technology Advisory Committee (TAC) and the CFTC Global Markets Advisory Committee (GMAC).

Supurna's professional career spans over 25 years in both the US and Europe, and within the Financial and the Technology Industries. Supurna held various positions at Bank of America, ING Barings in London and Lehman Brothers in NY. She started her career as a software engineer with IBM at their research center in New York.

Supurna is passionate about giving back to the financial community by contributing through mentorship and by serving on the Board of Women in Derivatives (WIND), a non-profit with a mission to advance women in the workforce. Most recently, Supurna was given the Financial Markets Luminary award by Women in Derivatives. Supurna was ranked #8 on the Institutional Investor's 2018 Trading Tech 40 list. She was also a recipient of the Markets Media Women in Finance Award for Excellence in Leadership.

Supurna is known for her ability to foresee necessary changes that are essential to stay relevant in the space. She has a proven track record as an influential leader with the ability to bring followership for her ideas. She is a passionate talent leader with the skills to develop future leaders as well as exceptional teams with diversity of thought as a key requirement when defining organizational structures.

Supurna has a Computer Science degree from Rutgers University, USA, and a Mathematics (Hons) degree from Delhi University, India.

Ms Greenland joined South Street in 2016 to manage the growing UK Repo financing business relationships and our newly founded Representative Office. Her role encompasses exploring strategic partnerships and investments for South Street Securities in the UK and Europe. Additionally, she acts as the senior relationship contact for clients in the UK and mainland Europe.

Ms Greenland has 18 years of financial services experience having run the EMEA Relationship Management teams of the Bank of New York Mellon's Broker Dealer Services and Global Product and Communications Strategy for Global Collateral Services and was a member of the European Operating Committee. Habiba has an active dialogue with many of the European trade bodies, academics who focus on Financial Services and Market structure and indeed regulators. Prior to this she ran sales for the Raiffeisen ZentralBank's Securities Lending and Repo division having trained on the Repo trading desk.

Ms Greenland holds a Master of Science from the University of Oxford, St Anne's College and a Diploma in Organisational Leadership from the University of Oxford.

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Laurie joined MF Global Holdings Ltd. in 2009 as Executive Vice President and General Counsel, responsible for managing litigation, compliance and regulatory matters for the company, with administrative responsibility for internal audit, and a key role in developing and implementing corporate strategy.  At the time, MF Global was a leading intermediary in global cash and derivatives markets. Laurie has continued as EVP and General Counsel since MF Global’s bankruptcy in October 2011, now the senior officer driving the firm’s global wind down. 

From 1987 to 2009, Laurie held several business and legal positions at Goldman Sachs. Most recently, she built out the global business selection and conflicts team, was responsible for creating a new function to coordinate global regulatory relationships and worked on transitioning the firm to a Bank Holding Company. Other notable business achievements included launching and leading the Economic Derivatives business (which included joint ventures with ICAP, CME and NYMEX), and being part of the small team creating Intercontinental Exchange (ICE). She began her career at Goldman as general counsel of J. Aron & Company and co-general counsel of the Fixed Income, Currency and Commodities Division. She became a Managing Director in 1997.

Earlier in her career, Laurie was general counsel of Drexel Burnham Lambert Trading Corp. where she also traded oil to learn the business. She earned her J.D. from New York University School of Law and was an associate at Skadden, Arps and at Schulte, Roth & Zabel.

Laurie is a Life Trustee of New York University School of Law, and previously served on the Boards of the Futures Industry Association and the Institute for Financial Markets. She also served on the CFTC’s Global Markets and Technology Advisory Committees and was a founding member of the Financial Markets Legal Group. She is currently a member of UJA’s Crisis to Stability Committee. 

Ted Goldthorpe is a Partner and head of Credit for BC Partners. He joined in 2017.

Mr. Goldthorpe was most recently the President of Apollo Investment Corporation, Chief Investment Officer of Apollo Investment Management, and Senior Portfolio Manager, U.S. Opportunistic Credit. Mr. Goldthorpe joined Apollo in April 2012 and oversaw the Opportunistic Credit platform within Apollo aggregating over $20bn in Assets Under Management, which grew dramatically during his tenure. His most recent focus was on the Direct Origination business. He was named to the firmwide Senior Management Committee in 2014.

Previously, Mr. Goldthorpe was employed by Goldman Sachs & Co. since 1999. He most recently ran the Bank Loan and Distressed Investing Desk and prior to that was a Managing Director in the Special Situations Group, running both their Middle Market Private Equity business and the Canadian business (CSSG). Prior to that, Mr. Goldthorpe worked in the High Yield Distressed business, the Merchant Banking Division and the Investment Banking Division.

Mr. Goldthorpe has previously served on the boards of SPARTA Insurance Holdings, Inc., Flatiron Re, JHT Holdings, Baxa Healthcare, Shelter Bay, Fairway Energy, amongst others, and was a board observer for First Solar, amongst others. He currently serves on the board of Crescent Point Energy, KITS Eyecare, BC Partners Lending Corporation, Mount Logan Capital, Anthem, Broadway Technologies and Portman Ridge Corporation.

Mr. Goldthorpe received a B.A. in Commerce from Queen's University in Kingston, Ontario. He is a frequent guest lecturer at leading Universities including Columbia, Harvard University, University of Pennsylvania (Wharton), University of Virginia, New York University, Queen's University, and Stanford University. Mr. Goldthorpe currently serves on the Global Advisory Board for the Queen's School of Business and serves on the board of the Canadian Olympic Foundation, HerJustice, the New School and Capitalize for Kids.