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TEAK Board of Directors

TEAK is able to fulfill its mission as a result of the spirited commitment of the Board of Directors who give generously of their time, expertise, and resources to support our students.

Senior Partner
Apollo Management


Managing Director
Co-Head of Investment Banking

RBC Capital Markets


Sullivan & Cromwell


Managing Director & General Counsel
General Atlantic


Managing Director


Managing Director
Goldman Sachs


Director of Admissions
Horace Mann School


Managing Director
One Equity Partners


Managing Partner
Stripes Group


Executive Director
The TEAK Fellowship
Senior Managing Director


Vice Chairman
Newmark Knight Frank


Paul, Weiss, Rifkind, Wharton & Garrison LLP.


Assistant United States Attorney
District of New Jersey


Apollo Management


Litigation Associate
Patterson Belknap Webb & Tyler


Search Consultant
Phillips Oppenheim


Plough Penny Partners


(Co-Founding Board Chair Emeritus)
President and CEO
Federal Reserve Bank of Dallas


Founder & Chair Emeritus
The TEAK Fellowship


Marc Becker, Chair

Marc is a Senior Partner in the Private Equity Division at Apollo Global Management. He joined Apollo in 1996. Prior to Apollo, he worked at Smith Barney in the Investment Banking division. Marc is a Director on several corporate Boards including Sun Country Airlines and The ADT Corporation, as Chairman. He also serves as Chairman of the Board of Trustees at Park Avenue Synagogue. Marc graduated cum laude with a BS in Economics from the University of Pennsylvania’s Wharton School of Business. He is a member of the University of Pennsylvania Undergraduate Financial Aid Leadership Council (“UFLC”). Marc joined the TEAK Board in 2012.


Matthew Stopnik, Vice-Chair

Matthew is a Managing Director and co-head of the Financial Sponsor Coverage Group at RBC Capital Markets. Prior to his joining RBC in 2015, Matthew spent nearly 20 years at UBS Investment Bank where he held a variety of positions including US Head of Financial Sponsor Coverage and US Head of Leveraged Finance. Matthew is a member of the board of Youth, INC. He received a BA from the University of Michigan. Matthew and his wife, Heather live in Manhattan with their two children.


Catherine Clarkin, Treasurer

Cathy is a partner at Sullivan & Cromwell, specializing in capital market transactions and corporate governance. She earned a B.A. in Economics from American University and her law degree from Catholic University, Columbus School of Law. Cathy serves as a Mentor to a fellow in TEAK’s 16th class and joined the board in 2016.


Christopher Lanning, Secretary

Chris is a Managing Director and General Counsel of General Atlantic, a global growth equity firm. He joined the firm in 2000 and has served on a number of boards of General Atlantic portfolio companies. Prior to joining General Atlantic, Chris was associated with the law firms Hunton & Williams and Paul, Weiss, Rifkind, Wharton & Garrison. He holds a BA with High Distinction in History from The University of Virginia, and a JD from The University of Virginia School of Law. He lives in Manhattan with his wife Shelly and their two children. Chris joined the TEAK Board in 2012.


Jonathan Bilzin

Jonathan is a Managing Director of TowerBrook Capital Partners where he has been since its founding. He was previously a Managing Director at Soros Private Equity. Prior to that, Mr. Bilzin was a member of the Principal Investment Area and Real Estate Principal Investment Area of Goldman Sachs in New York. Mr. Bilzin earned his B.B.A. from the University of Michigan and received his M.B.A. from the Stanford Graduate School of Business.


Jill Borst

Jill is a partner at Goldman, Sachs & Co and is the head of U.S. Interest Rates Sales and co-head of Global Repo Trading. She joined Goldman in 2000 and was named Managing Director in 2009 and partner in 2012. Jill earned a BA in Economics, summa cum laude, from Princeton University and a certificate in Finance from the Bendheim Center of Finance. She is a Mentor to a fellow in TEAK’s 15th class and joined the TEAK Board in 2017.


Jason L. Caldwell

Jason Caldwell has been in the Independent School Admissions field for 15 years, previously serving as the Director of Middle and Upper School Admissions at the Packer Collegiate Institute in Brooklyn and currently as the Director of Nursery – 12th grade Admissions at his Alma Mater, Horace Mann School which is located in Bronx, New York. Previously, before working with the TEAK Fellowship, Jason served on the Breakthrough New York Board (Formerly Summberbridge) between 2010-2019 and served on the Board of Artworks for Youth (a South African based enrichment program for students) from 2009-2012. He began his career as the Regional Admissions Dean for the Mid-Atlantic at Swarthmore College. In addition to his work in education, Jason is a screenwriter with a handful of television projects in development. Jason lives in the Riverdale section of the Bronx with his wife, Demetra and daughters, Cameron and Alexis.


Brad Coppens

Brad is a Managing Director of One Equity Partners based in New York. He joined OEP in 2006. During his time at OEP, Brad has focused on the healthcare and technology-enabled services industries and has served as a Director on a number of boards of OEP portfolio companies in those industries. From 2012 to 2014, Brad lived in São Paulo, Brazil and led OEP’s investing efforts in the region. Prior to joining OEP, Brad worked in the Investment Banking division of JPMorgan in the Mergers & Acquisitions group. Mr. Coppens received his BBA in accounting and finance from the Stephen M. Ross School of Business at the University of Michigan. Brad served as a Mentor to a fellow in TEAK’s tenth class and joined the Board in 2018. Brad was also named TEAK’s 2016 Volunteer of the Year. Brad lives in Plandome, NY with his wife, Brett and their two children.


Kenneth Fox

Ken is the Founder and a Managing Partner of Stripes Group, a growth-oriented private equity firm that invests in Internet and Branded Consumer Products businesses. Ken is a serial entrepreneur and is also the co-founder of A10 Capital and Internet Capital Group. Ken earned a BS in Economics from Penn State and served as a Mentor to a TEAK’s sixth class.


John F. Green, Executive Director

Earning his B.A. from Wesleyan and his Masters in Education from Harvard, John Green brings 35 years of educational experience at some of our Nation’s premier independent schools. From 1981-1986, John worked as a teacher, coach, and adviser at the Fessenden School and Western Reserve Academy where he also served as the Director of College Counseling. From 1986-2001, John served as a history department chair, Director of Admissions, Director of College Counseling and a Dean of Faculty at St. Paul’s School. From 2001-2013, John served Head of School at Peddie School. From 2013-2015, John worked as a coach and advises independent and residential schools on strategic planning and administrative and board development. Among a wide range of volunteer activities, John has served on the boards of Choate-Rosemary Hall School, Trenton Community Charter School, American Boychoir School, Beech Hill Middle School, New Jersey Scholars Educators Excellence Dedication (SEEDS), and Boys & Girls Clubs of Greater Concord.


Jared S. Hendricks

Jared joined Centerbridge in 2006 and focuses on investments in the Technology, Media & Telecom sector. Prior to joining Centerbridge, Jared was an Associate at Silver Lake Partners, a private equity firm focused on investments in technology and related growth companies operating at scale. Previously, Jared was an Investment Banking Analyst within the Global Industrial and Services Group at Credit Suisse First Boston. Jared graduated summa cum laude with a B.S. from Wharton School of the University of Pennsylvania. Jared serves on the Boards of Directors of American Renal Holdings, Inc. (and affiliated entities), IPC Corp. (and affiliated entities), Ligado Networks LLC and the board affiliated with Syncsort Incorporated.


Jared L Horowitz

Jared is a Vice Chairman at Newmark Group specializing in Tenant and Landlord representation where he has been since 2013. He was previously an Executive Director at Cushman & Wakefield for 13 years. Prior to real estate, Mr. Horowitz spent 5 years in the talent management field representing sports broadcasters. Mr. Horowitz earned a BS in Marketing at Lehigh University and resides in NYC with his wife Ally and their two children.


Amran Hussein

Amran is a Partner at Paul, Weiss, Rifkind, Wharton & Garrison LLP, specializing in the organization and operation of private investment funds. She earned a B.A. from Smith College and a J.D. from New York University School of Law, where she was a Staff Editor of the Review of Law & Social Change. Prior to law school, she worked at the Women’s Environment & Development Organization (WEDO), an international advocacy organization focused on promoting gender equality in global policy. Amran joined the TEAK board in 2016‎.


Jacques S. Pierre

Jacques is a federal prosecutor with the U.S. Attorney’s Office in the District of New Jersey, focusing on public corruption and white collar crimes. He joined the U.S. Attorney’s Office in 2010 after practicing with a large law firm and clerking for the Chief Justice of the New Jersey Supreme Court. Prior to legal practice, Jacques began his career in education in 1995 as a high school history teacher and the Director of On Your Marks Summerbridge (now Breatkthrough) in Long Island, New York. In 2000, Jacques joined the TEAK Fellowship as its first Director of Post Placement and teacher of Writing and West African drumming during the TEAK Summer Institutes. Jacques was also a Mentor to a Fellow in TEAK’s eleventh class. Most recently, Jacques has served as an Adjunct Professor at Montclair State University and is a current member of the Board of Trustees of the MESA Charter School in Brooklyn, NY. Jacques and his wife live in Brooklyn with their 4 children.


Robert Kalsow-Ramos

Rob is a Partner in Private Equity at Apollo Management primarily focused on investments in the technology and business services sectors. Prior to joining Apollo in 2010, Rob was a member of the Investment Banking group at Morgan Stanley. Rob serves on the board of directors of Intrado and previously served on the board of directors of Hexion Inc., Momentive Performance Materials, and Noranda Aluminum. Rob received his B.B.A. from the Stephen M. Ross School of Business at the University of Michigan, where he graduated with high distinction. Rob lives in Manhattan with his wife Reston and is a TEAK mentor and professional coach.


Christina Seda-Acosta

Christina Seda-Acosta is a litigation associate at Patterson Belknap Webb & Tyler. Her practice spans across a wide range of areas, from complex commercial disputes and internal investigations to employment matters. Christina’s work also involves contract review and negotiations for corporate clients. She is the Firm’s 2016 Diversity Fellow, and a member of the Diversity and Cybersecurity Committees. Prior to joining PBWT, Christina clerked for Judge Nelson Roman in the Southern District of New York. From 2014 through 2016, she served as a litigation associate at Paul Weiss. Christina graduated from Yale Law School in 2014. At YLS, Christina was a Co-Director of the Advocacy for Children & Youth Clinic, and Vice President of the Black Law Student’s Association. Christina currently sits on the New York City Bar Association Education & Law Committee. Outside of the legal profession, she has been involved in a number of organizations dedicated to serving New York City’s schoolchildren, including the TEAK, and Legal Outreach. Christina is a member of TEAK Class 2.


Paul Spivey

Paul is a search consultant with the executive search firm of Phillips Oppenheim dedicated to strengthening leadership in the nonprofit sector. Paul has advised a broad range of nonprofit clients on recruitment, donor development and board governance. Paul served as President of the Edwin Gould Foundation for Children, supporting education, youth development and financial literacy. Following a year-long internship with the New York City Board of Education, Paul became Executive Director of Sponsors for Educational Opportunity, committed to the achievement of low-income students. Paul’s year as a human rights worker for the Black Sash in South Africa in the late 1980s inspired him to support underserved youth both abroad and at home. Immediately following his graduation from college, Paul worked as a financial analyst for Goldman Sachs. Paul currently sits on the boards of Exponent Philanthropy and New York City Center. Prior board service includes his duties as Chair of the Association of Black Foundation Executives, Secretary of the Council on Foundations and Vice Chair of Philanthropy New York. Paul also has served on the boards of Connecticut Upward Bound, the Ackerman Institute for the Family and Boricua College’s Advisory Board. As a loyal alumnus, Paul has served on the boards of Eaglebrook School and Wesleyan University while representing St. Paul’s School as an Alumni Regional Representative.


Judson Traphagen

Jud is a private investor and partner at Plough Penny Partners. Prior to joining Plough Penny, he worked from 1989 until 1998 at Japonica Partners, an investment firm run by Paul Kazarian. He received a B.A. in History from Denison University in 1989 and an M.B.A. from Columbia Business School in 1994. Jud is on the board of trustees at Lang Center for Entrepreneurship at Columbia Business School, Eaglebrook School, and The Teak Fellowship.


Robert S. Kaplan, Co-Founding Board Chair Emeritus

Robert was named as the thirteenth president and CEO of the Federal Reserve Bank of Dallas on September 8, 2015. He was previously the Martin Marshall Professor of Management Practice in Business Administration and Harvard Business School Senior Associate Dean for External Resources. A Senior Director of Goldman, Sachs & Co., Rob joined the company’s Corporate Finance Department as an Associate in 1983 and became a Managing Director in 1990. Rob is the Co-Chairman of the Board of Project A.L.S., Co-Chair of the Harvard NeuroDiscovery Center Council, and a member of the Board of the Harvard Medical School, The Jewish Museum, and The Jewish Theological Seminary. Rob is the author of What To Ask The Person In The Mirror (Harvard Business Review Press, 2011) and is also a graduate of the University of Kansas (1979) and Harvard Business School (1983). He joined the TEAK Board in 1998.


Justine Stamen Arrillaga, Founder & Chair Emeritus

Justine Stamen Arrillaga is the Founder of The TEAK Fellowship. Justine served as Executive Director of The TEAK Fellowship from 1998 until 2006 and then as Board Co-Chair from 2006 until 2013, when she was appointed Chair Emeritus. She is a fourth generation Californian, raised in Los Angeles. In 1992, Justine graduated from Brown University and moved to New York City, where she began her work in nonprofit and was deeply moved by the life-changing potential of academic and personal enrichment programs for low-income youth. After serving as Assistant Director of the Tiger Foundation in Manhattan and Director of Summerbridge at Riverdale, an academic enrichment program in the Bronx, she founded The TEAK Fellowship in 1998. The tragic murders of both her childhood best friend, Teak Dyer, and one of her beloved students from the Bronx, DeWitt White, inspired her to create The TEAK Fellowship in their memory. Justine and her husband John Arrillaga, Jr. live in Northern California and Hawaii with their three sons. Justine is a trustee of StoryCorps and an active supporter of the Cambodian Children’s Fund and The Sean Parker Center for Allergy Research at Stanford University, where she is a member of the Community Council Advisory. Justine was a weekly volunteer at Fisher House at the Palo Alto VA for ten years and is a lifelong painter, represented by Art Dimensions Gallery in Los Angeles. She enjoys tennis, travel and watching the TEAK Alums’ lives unfold in countless beautiful ways.