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

A-Team Insight People

OSTTRA Appoints Four Senior Leaders Following KKR Acquisition

Subscribe to our newsletter

OSTTRA, the global post-trade solutions provider, has announced four strategic appointments to its leadership and product teams. Nathan Ondyak joins as Chief Commercial Officer, Peter Altero as Chief Business Development Officer, Chris Licini as Buy-Side Strategic Relationship Manager, and Christian Kjaeldgaard as Product Design Director. All four individuals join from the London Stock Exchange Group (LSEG), where they held senior roles in the post-trade division, specifically contributing to services such as SwapClear and TradeAgent.

This recruitment drive follows the acquisition of OSTTRA by KKR in October 2025 and subsequent investment from a consortium of global banks in February 2026. The appointments mark a return to the firm for Ondyak, Altero, and Kjaeldgaard, who previously held positions at Markit, one of OSTTRA’s founding businesses. The new team will focus on accelerating the development of services designed to improve capital and operational efficiencies across multiple asset classes.

The new executives bring extensive experience in post-trade transformation and client relationship management. Nathan Ondyak previously served as CEO of LSEG Post Trade Services (TradeAgent), while Peter Altero led North American operations for LSEG’s non-clearing post-trade businesses. Together with Chris Licini and Christian Kjaeldgaard, they will collaborate with OSTTRA’s partners to modernise complex workflows and expand the company’s global service offering under its new ownership structure.

Subscribe to our newsletter

Related content

WEBINAR

Recorded Webinar: Enabling data democratisation with trusted and well governed data

Data democratisation enables users across an organisation to access and analyse data in a digital format. Its benefits are many and include allowing employees to make informed business decisions without recourse to IT, gaining a better understanding of customers, improving operational efficiency, and achieving a greater return on investment in data. It is also key...

BLOG

The Potential and Pitfalls of Large Language Models

By Tony Seale, Knowledge Graph Engineer at Tier 1 Bank. Large Language Models (LLMs) like ChatGPT possess enormous power, stemming from their capability to ingest and compress vast amounts of general information gathered from the web. However, this capability is general rather than tailored to your specific business needs. To effectively utilise these models in...

EVENT

TradingTech Summit London

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

Impact of Derivatives on Reference Data Management

They may be complex and burdened with a bad reputation at the moment, but derivatives are here to stay. Although Bank for International Settlements figures indicate that derivatives trading is down for the first time in 10 years, the asset class has been strongly defended by the banking and brokerage community over the last few...