Matrix Applications is proud to announce that we will be attending the Fiver Children’s Foundation 2026 Annual Benefit on May 14th, 2026 at 583 Park Avenue in New York City. The sit-down dinner will bring together the Fiver community and celebrate the contributions made to advance Fiver's mission.
Donald Webbe, President of Matrix Applications and Chief Operating Officer of South Street Securities, will be recognized at the benefit as the honoree of the Richard Adams Leadership Award. His contributions over the years have allowed Fiver to provide youth across New York with the resources they need to succeed past their youth.
The event celebrates Fiver's mission of empowering youth across New York through a bold and proven model of long-term, no-cost support. The unique ten-year promise to each child makes Fiver a part of their lives, walking alongside them through the formative chapters of their youth. From summer camps to academic mentoring, the programs build confidence, resilience and leadership in ways that last far beyond childhood. Fiver provides youth from systematically under-resourced communities in New York with experiences that challenge and relationships that nurture so they can create their own positive futures.
Matrix Applications has been supporting Fiver since 2012 and Donald Webbe has been a big advocate for Fiver's mission, alongside Jim Tabacchi, CEO of Matrix Applications and South Street Securities Holdings.
The leadership team has consistently supported Fiver's mission through their annual benefit sponsorship. Webbe and Tabacchi have many close ties to the Fiver community, including several of the founding board members and longtime supporters.
To learn how you can support Fiver, contact Melissa Gomez at melissa@fiver.org.
About Donald Webbe
Mr. Webbe also serves as President of Matrix Applications LLC, a financial technology company, overseeing the technology infrastructure, system support, operations and software development. In addition, Mr. Webbe is as a Board Member of AmeriVet Securities, Inc., a Service-Disabled Veteran-Owned broker-dealer (SDVOB).
Prior to joining South Street Securities Holdings Inc., Mr. Webbe worked at Citigroup from 1986 until 2001. As a Vice President at Citigroup, he was responsible for a range of middle and back-office functions. His role included oversight of finance, funding, futures and emerging markets operations for both domestic and international settlement. He was integral to several highly sophisticated securitization projects and had extensive interaction with foreign exchange and derivatives operations.
Mr. Webbe is FINRA Series 7, 27 and 63 registered.
About Fiver Children's Foundation
Founded in 1998 by Tom Tucker, now Chairperson Emeritus of the Board, Fiver Children’s Foundation began as a summer camp on the Keefe Family Farm near Colgate University. Inspired by Watership Down’s character Fiver, our ten‑year commitment offers challenging experiences and caring relationships that help young people from systematically under‑resourced communities build positive futures. Today, Fiver is an award‑winning, year‑round youth development organization supporting 500 participants each year. Through one‑on‑one guidance, group programs, and overnight camp, we help youth develop the social, emotional, and life skills needed to thrive.
About Matrix Applications
Matrix Applications, LLC is a New York-based fintech service bureau that offers a suite of collateral management, margining and clearing systems for institutional fixed income trading and equities securities lending. Comprised of a team of capital markets and systems professionals, Matrix Applications delivers financial technology solutions to institutional firms of all sizes. Since 2000, the company has worked hands-on with clients to identify an optimal mix of services to best fit their needs, from systems to back-office operations assistance. With in-house and offshore developers, Matrix Applications provides clients with the right technology at the right price while leveraging extensive technical experience and a deep network to deliver bespoke managed services
About South Street Securities Holdings Inc.
South Street Securities Holdings Inc. operates through its wholly owned subsidiaries. Affiliates include South Street Securities LLC, a FINRA and SIPC member who holds a FICC Tier 1 membership and is focused on repo dealer financing US Treasuries, Agency MBS, TBA Mortgage Origination Hedging, Equity Finance and Algorithmic Trade Execution, Matrix Applications LLC, a technology and back-office services company, AmeriVet Securities, Inc., a FINRA and SIPC member who operates an SEC registered Service-Disabled Veteran-Owned broker-dealer, and GX2 Systems LLC, a fintech software development company that engineers electronic trading solutions for the fixed income and futures markets.