Meet Our Subject Matter Experts

Bill Busineau is a Senior Director at Quadrangle. He is an attorney with over 20 years in the financial industry with experience in a wide variety of trading and investment products, as well as the various laws and regulations that impact those products. His experience prior to Quadrangle included positions at Citigroup, Credit Suisse, HSBC, and RBS and work as an associate in the structured finance / derivatives departments at the law firms of Schulte Roth and Zabel, and Cadwalader, Wickersham & Taft.  Prior to attending law school, Bill spent a combined 6 years in Haiti first as a Peace Corps Volunteer and then as a Regional Director with the OAS/UN International Civilian Mission.

Bill received his AB from Colby College and his JD from Fordham University School of Law.

Hans Gibson is a Senior Director at Quadrangle. He has spent over 30 years of his career in the documentation of trade and financing agreements (mainly in the derivatives and Prime Brokerage industries) with investment funds, large and small corporations, and high-net-worth individuals.

Prior to Quadrangle, Hans was a director at UBS AG where he was responsible for the documentation of ISDA Agreements, along with being part of the team that instituted a new documentation tracking and reporting system. Hans also learned and negotiated Prime Brokerage and Repurchase Agreements, along with the Master Equity Confirmation. Prior to UBS, Hans spent 8 years as an Associate at JPMorgan where he focused on derivatives documentation with European companies and high-net-worth individuals.

Hans received a BA from Connecticut College and a Certificate of Accounting from Fairfield University.

Christine Cohen joined Quadrangle in March of 2022 as Director of Client Relationships. Prior to joining Quadrangle, Christine spent 9 years at Sculptor Capital Management, where she focused on global legal operations specializing in KYC and counterparty onboarding.  Prior to Sculptor, she worked for 8 years at Sichenzia Ross Friedman Ference.

Christine holds a BA from Wagner College and a Masters in Public Administration from C.W. Post Long Island University.

Alexandra Schimmel is a Senior Associate at Quadrangle. Prior to Quadrangle, Alexandra worked in advertising where she specialized in branding strategy and data analytics. She has also held roles in business management. Additionally, Alexandra worked in mergers and acquisitions for a cannabis franchising company in Denver, Unity RD. She was an integral member of the mergers and acquisitions team in risk management, legal compliance, and licensing. She conducted extensive research and analysis on existing and emerging markets.

A native New Yorker, Alexandra received her BA in Communication from the University of Colorado, where she was also a competitive skier, and subsequently a JD from New York Law School.

Joe Angelo Zanghi recently joined Quadrangle as an Associate.  Prior to Quadrangle, Joe worked at a large plaintiff personal injury firm in Brooklyn handling almost all court documentation for client matters, from Summons and Complaints to Summary Judgment Motions. Most recently, Joe worked at a large financial institution in Third Party Risk Management, where he specialized in organizing, gathering, analyzing, tracking, negotiating, and building out databases for vendor agreements.

Also a native New Yorker, Joe received his BA in Political Science from Baruch College and later his JD from New York Law School.  He joined the New York City State Bar in March of 2021.

Riley Coyne is a Vice President who joined Quadrangle in 2019. He focuses primarily on project management and data analysis. Additionally, Riley spearheads many new technology projects, acting as a liaison with the development team. Prior to his time at Quadrangle, Riley worked at Castle Hill Capital Partners in capital introduction for endowments, pension funds, and foundations.

Originally from Cleveland, Riley graduated magna cum laude from Fordham University with a degree in finance, fintech, and economics. Outside of work, Riley loves playing music and new technology.

Grace Janosik joined Quadrangle in Summer 2021 as an Analyst after interning during her last semester before graduation. She primarily focuses on internal project management, marketing, and technology development.

Originally from Cleveland, Ohio, Grace attended Fordham University and graduated summa cum laude with a degree in information systems, mathematics, and business law and ethics. While in school, Grace was heavily involved in the Office of Residential Life and worked as an RA for two years.

Paige Duncan joined Quadrangle in the summer of 2023. At Quadrangle, she focuses on project management and sales endeavors. Before joining the team, she worked for four years in the technology industry as an account manager.

Originally from Long Island, New York, Paige achieved her undergraduate degree in business management from the University of Tampa. She then advanced her educational journey at LIM College, successfully earning a Master of Professional Studies in Marketing.

Kim joined Quadrangle as an Executive Assistant in February of 2024. Kim directly assists the team with administrative tasks and has relevant experience supporting high level executives in the financial industry. Kim provides logistical support, coordinates scheduling and communications, and helps ensure organization and efficiency in the firm’s operations.

Originally from Marlboro, New Jersey, Kim graduated from UMass Amherst in 2022 with an undergraduate degree in Hospitality & Tourism Management. In her personal time, she enjoys creating art and playing with her cat.