About a-team Marketing Services
The knowledge platform for the financial technology industry
The knowledge platform for the financial technology industry

A-Team Insight Briefs

Jonathan Kellner Named CEO of MEMX

Subscribe to our newsletter

Jonathan Kellner has joined Members Exchange (MEMX), a recently established member-owned equities exchange. Founding members include Bank of America Merrill Lynch, Charles Schwab, Citadel Securities, E*Trade, Fidelity Investments, Morgan Stanley, TD Ameritrade, UBS, and Virtu Financial. Before signing on to MEMX, Kellner led Instinet through the acquisition of BlockCross ATS from State Street, and the transition through regulatory change, including Dodd-Frank and MiFID II.

Subscribe to our newsletter

Related content

WEBINAR

Upcoming Webinar: From 24/7 to Event-Driven: Engineering the Next-Generation Exchange Platform

Date: 28 April 2026 Time: 10:00am ET / 3:00pm London / 4:00pm CET Duration: 50 minutes What digital asset and prediction markets are teaching traditional exchanges about availability, agility and time-to-market. New market structures and regulatory changes are forcing exchange operators to rethink the foundations of their technology stacks. Digital asset exchanges, prediction markets and...

BLOG

LSEG Secures Major Bank Investment to Overhaul Post-Trade Landscape Ahead of T+1

The London Stock Exchange Group (LSEG) has announced a significant partnership with a consortium of 11 leading global banks, who will collectively invest to take a 20% stake in LSEG’s Post Trade Solutions business. The £170 million investment values the unit at £850 million and signals a collaborative push to innovate and standardise the derivatives...

EVENT

TEST Event page 1

Now in its 15th year the TradingTech Summit London brings together the European trading technology capital markets industry and examines the latest changes and innovations in trading technology and explores how technology is being deployed to create an edge in sell side and buy side capital markets financial institutions.

GUIDE

BCBS 239 Data Management Handbook

Our 2015/2016 edition of the BCBS 239 Data Management Handbook has arrived! Printed copies went like hotcakes at our Data Management Summit in New York but you can download your own copy here and get access to detailed information on the  principles and implications of BCBS 239 on Data Management. This Handbook provides an at-a-glance...