Credit Suisse has hired Paul Galietto as head of Americas equities trading, according to an internal memo first seen by Reuters, in a move to boost its stock business. Galietto most recently was the chief of equities Americas at UBS Group AG and before that he worked more than 20 years at Merrill Lynch. Credit Suisse has made a number of senior hires this year in its stock trading unit under new equities head Mike Stewart. Those hires include Michael Ebert, who joined as global head of equity derivatives from Bank of America; Doug Crofton, who was brought over from Bank of America to run U.S. equities sales and trading, and David Bleustein, who became head of Americas equity research and had worked at UBS.

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Goldman Sachs lost one its technologists, David Ha, to Google’s Brain division. Ha spent the last 8 years at the white glove broker and departed as the Tokyo-based co-head of Japanese rates trading.

Cowen has appointed Larry Wieseneck and Dan Charney as Co-Presidents of the company. Both will report to Jeffrey M. Solomon, CEO of Cowen and Company and President of Cowen Inc. In their roles as Co-Presidents, Cowen’s investment banking, capital markets and credit divisions will report to Wieseneck and the equities, prime brokerage and securities lending divisions will report to Mr. Charney.

The firm also announced the establishment of a Management Committee which will be responsible for the execution of the Company’s long-term strategy. The Management Committee, reporting to Peter A. Cohen, CEO of Cowen Inc., and Mr. Solomon, includes executives from across the organization:

• Dan Charney, Co-President, Cowen and Company
• Robert Fagin, Director of Research, Cowen and Company
• Fred Fraenkel, Head, Cowen Investment Management
• John Holmes, Chief Operating Officer, Cowen Inc.
• Stephen Lasota, Chief Financial Officer, Cowen Inc.
• Owen Littman, General Counsel, Cowen Inc.
• Tom Strauss, Chairman, Cowen Investment Management
• Larry Wieseneck, Co-President, Cowen and Company

Also at Credit Suisse, both Tish Ghosh and Andrew Pidgeon, have departed the firm’s Hong Kong office to join hedge funds. Ghosh, a Credit Suisse MD and head of equities delta one and systematic trading for Asia Pacific, moved to Millennium Capital Management  as a portfolio manager. He had been with Credit Suisse since June 2014 and previously spent three years as Asia Pacific head of equities systematic trading at Merrill Lynch. He was a Barclays Vice President before that.

Pidgeon, who was a director in Delta One and Derivatives trading at the bulge firm, departed for Seganti Capital Management. He spent 7 years at Credit Suisse and also worked at Macquarie in Hong Kong as a derivatives trader.

Exegy, a provider of managed services and technology for low-latency financial market data, has hired Carlos Lopez Lansdowne as its Sales Director for Europe and Asia, based in London.  Lansdowne has responsibilities for sales of Exegy products and services, as well as development of partnerships to expand its enterprise ecosystem. Lansdowne led sales teams across EMEA and APAC for DXC Technology, Redline Software Solutions, Fidessa, SuperDerivatives, and Thomson Reuters. He reports to chief operating officer Rod Arbaugh.

Chicago-based R.J. O’Brien & Associates (RJO) hired Brad Giemza as Managing Director and Chief Risk Officer. Giemza will also serve on RJO’s senior management team. With over two decades in financial services risk, clearing and technology management, he’ll lead the RJO risk department, overseeing all risk activities and chairing the corporate risk committee. Prior to joining RJO, Giemza spent three years at Mitsubishi UFJ Financial Group (MUFG) Americas, Union Bank, serving most recently as Managing Director, Head of Investment Banking and Capital Markets IT. Prior to MUFG he spent seven years at Newedge Group as Senior Director, where he most recently served as Global Head of Risk IT. He also held senior roles at the firm in clearing and straight-through processing. Early in his career, Giemza spent eight years at JPMorgan Chase, rising to Vice President, Technology Program Manager in 2004.

Cerberus Capital Management landed Afsheen Afshar as a Senior Managing Director and Chief Artificial Intelligence Officer, a newly created role within the group. In this role, Afshar will lead the development of a proprietary operations platform focused on artificial intelligence and machine learning. He joins from J.P. Morgan where he was Chief Data Science Officer and Managing Director, responsible for data science efforts for the entire corporate and investment bank. Prior to that, he was a Managing Director at Goldman Sachs where he led data science and machine learning teams that worked across multiple businesses.

Berkeley Research Group (BRG), a global strategic advisory and expert consulting firm, announced the appointment of Naomi Bowman as a Managing Director in its London-based EMEA Financial Services practice. She will focus on helping clients respond effectively to mandatory regulatory change and building high-performing legal, governance, risk and compliance functions. Bowman joins BRG from HSBC, where she most recently held the role of Global Legal Chief Operating Officer. Prior to this, she held roles in PwC and EY, with a focus on operational effectiveness and regulatory change. She is a Chartered Accountant and Fellow of the International Compliance Association.

Quantitative Brokers has appointed Thomas Ascher to its Board. Ascher brings more than 30 years of experience across the financial technology, exchange, and wagering industries. Most recently, Ascher served as President and CEO of Longitude LLC and Chief Strategy Officer and Head of Corporate Initiatives at Longitude’s parent companies ISE, LLC and ISE Holdings until the acquisition of ISE by Nasdaq in 2016. Ascher has also served as CEO of NQLX.

Bluecrest Capital Management, the former hedge fund which became a family office nearly two years ago, is understood to have parted company with one of its most senior equities traders in London. Derek Flynn, the fund’s head of equity execution trading. Flynn joined Bluecrest as a senior equities trader in 2013 after working as a prop trader for Nomura.