exceptional people and products

Explore our beginnings

Our unparalleled technology and expert traders excel under the best and the worst market conditions.


We've never stopped growing and innovating

Trillium’s core management team pioneered the electronic trading industry, beginning their careers in the mid-1990s.

Our Progress


The first electronic order matching system, now the foundation of NASDAQ's system architecture


A retail online trading business sold to Ameritrade for $1.3 billion in 2002, and now known as TD Ameritrade


Trillium, a premier trading and technology firm, is established in 2003


In 2013, Trillium's in-house software development group spun off and became Trillium Labs


In 2014, Trillium launched its first public product, Surveyor, a post-trade surveillance platform


Trillium's presence expands westward with the opening of a new Chicago trading floor in 2015

In April 2016 Trillium was honored to host the Nasdaq Closing Bell Ceremony.

Trillium Surveyor was honored on April 29th, 2016 to be invited by Nasdaq to host the Closing Bell Ceremony and ring the market out for the day.

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We grow with a real dedication to innovation within the financial sector.


Trillium Traders


US Trading Floors


Average Daily Volume

Our Leadership

Lee Maschler


Barry Schwarz

Chief Executive Officer

Katie Chastaine

General Counsel & Chief Compliance Officer

Diana Cucciniello

Chief Financial Officer & Chief Operating Officer

Howard Teitelman

Chief Strategy Officer

Erik Gordon

Chief Technology Officer

Cary Grill

Director of Human Resources

Lee Maschler


Lee Maschler is Trillium’s founder, non-executive Chairman, and principal owner.

Over his more than 20 years in the electronic trading industry, Lee has also founded or co-founded Lion Cave Capital, Castle Financial Management, Castle Strategic Trading, and Hubb Solutions.

Lee maintains a charitable fund that supports the Children’s Hospital of Philadelphia and the SI Sandy Relief Fund, a charity to help families on Staten Island hit hard by Hurricane Sandy.

Lee graduated from Cornell University and sits on the boards of both the Cornell School of Operations Research and Industrial Engineering and the Cornell Dyson School of Applied Economics and Management.

Barry Schwarz

Chief Executive Officer

Over his more than 20 year career on Wall Street, Barry has held a wide range of high-level positions, and is now Trillium’s Chief Executive Officer.

Barry began his Wall Street career as a private psychology clinician providing consulting and counseling to the trading community.

He rose to executive positions at Heartland Securities and Datek Online, served as a director of LightSpeed Financial and two other closely held trading entities, worked as a registered principal at Trillium’s former broker-dealer affiliate, and served as the liquidating trustee of Heartland.

Barry received BA and MS degrees in counseling from Queens College. He resides in Woodbury, Long Island with his wife and three children.

Katie Chastaine

General Counsel & Chief Compliance Officer

As General Counsel and Chief Compliance Officer, Katie oversees all legal, corporate and regulatory matters affecting Trillium.

Prior to joining Trillium in 2019, Katie was a partner at Winston & Strawn in its corporate group where she worked with Trillium for over a decade as outside counsel.

Katie received a BA from Colgate University and a JD from Brooklyn Law School. She lives in Larchmont, NY with her husband and son.

Dan Balber

Head Trader

Dan brings more than two decades of electronic trading experience to his role as Trillium’s Head Trader.

As Head Trader, Dan is responsible for allocating capital and managing risk for Trillium’s 100+ traders as well as running the day to day management of all equity trading operations.

He has lectured on electronic trading at Columbia University’s Fu Foundation School of Engineering and Applied Science, and served as an expert witness in civil securities litigation. He has also served on the advisory board of Whole Brain Creativity, an online personal assessment technology start-up.

Dan received a BA in Economics from the University of Pennsylvania. He lives in Chappaqua, NY with his wife and two sons.

Diana Cucciniello

Chief Financial Officer & Chief Operating Officer

Diana’s career spans over 20 years of experience in financial operations and management.

Diana has served as Chief Financial Officer of King Financial Services, Inc., a self-clearing broker dealer, which cleared approximately one billion shares a month at its peak.

She and her husband volunteer with and donate to Hurricane Sandy charities and victims, and are advocates and donors to children’s cancer related organizations.

Diana received her Bachelor’s degree in Accounting and Finance from Caldwell College. She resides in New Jersey with her husband and two sons.

Howard Teitelman

Chief Strategy Officer

Howard has over 20 years of electronic trading experience, which he uses as a liaison between Trillium’s traders and technology team.

Prior to joining Trillium, Howard worked at General Electric’s Research and Development Center in Schenectady, NY and constructed a statistical model to determine default risk associated with sub-prime auto loans.

Howard has lectured on trading and technology in the financial markets at the School of Engineering and Applied Science at Columbia University.

He received a BS in Engineering Management Systems and an MS in Operations Research, both from Columbia University, where he was selected as an early inductee into Tau Beta Pi, the National Engineering Honor Society and Omega Rho, the International Operations Research Honor Society. He lives in Teaneck, NJ with his wife and five children.

Erik Gordon

Chief Technology Officer

Erik oversees the development of Trillium’s robust suite of electronic trading systems and software.

Over his 20+ years in software development, Erik has lent his technical expertise to various start-ups, research laboratories, and financial services institutions.

In 2010, Erik was appointed to the Advisory Board for the Department of Mathematical Sciences at NJIT. His widely varied body of work has led to publications, patents, and talks at major research centers.

A published mathematician, Erik received his BS summa cum laude and MS degrees in Applied Mathematics from the New Jersey Institute of Technology. Erik lives in West Windsor, NJ with his wife and two children.

Cary Grill

Director of Human Resources

Cary acts as a teacher and mentor to incoming traders while helping to manage current active traders in the firm.

Before becoming Director of Human Resources and Head Recruiter, Cary spent 12 years as an active trader, trainer, mentor, coach, and trading innovator.

Active in the short-term US equities markets for over 20 years, he holds the record for most consecutive positive trading days in the history of the firm.

Cary earned a BA from the University of Maryland and a Human Resource Directors Certificate from the School of Industrial and Labor Relations at Cornell University. He lives in Livingston, NJ with his wife and two daughters.

What We Do

Proprietary Equities Trading

Our traders have thrived throughout a decade of difficult market conditions, and consistently find the best opportunities to always move Trillium forward.

How We Trade

Cutting-Edge Technology

Trillium Labs, our in-house development team, stays ahead of changes in the industry by bringing us new trading tools and product features every day.

Meet Surveyor