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Thomas Sullivan named Managing Director of DTCC Digital Assets

Wed, 1st Oct 2025

Thomas Sullivan has been appointed as Managing Director of DTCC Digital Assets.

Role and responsibilities

The Depository Trust & Clearing Corporation (DTCC) confirmed the appointment, with Sullivan set to lead the development of DTCC Digital Assets' strategic objectives. He will be responsible for critical projects and engaging with clients, regulators, and market participants to support the firm's activities in digital innovation.

Sullivan reports to Nadine Chakar, Managing Director and Global Head of DTCC Digital Assets. His remit includes driving the evolution of digital assets capabilities within DTCC and facilitating collaborations that help position the firm within the fast-developing world of digital finance.

Professional background

Sullivan brings more than two decades of experience in the securities and banking sectors, covering roles in both operations and innovation. Before his new position, Sullivan served as Head of Business Development for Digital Assets at Société Générale. In this role, he was instrumental in establishing Société Générale's work with digital-native financial products recorded on blockchain infrastructure.

Prior to joining Société Générale, Sullivan held the position of Head of Broker Dealer Operations at Commerzbank. There, he managed securities settlements, oversaw securities lending support, and directed asset servicing activities.

Industry context

DTCC is a key post-trade market infrastructure provider, working across established and emerging financial markets. The appointment comes as the financial sector continues to see significant developments around digital assets and blockchain technology. DTCC's stated aim is to bridge traditional finance structures with blockchain-based financial products and ecosystems.

Corporate perspective

"As we accelerate DTCC's leadership in digital asset innovation and deliver trusted infrastructure that bridges traditional finance with emerging blockchain ecosystems, we must advance our solutions and seek opportunities to collaborate with clients, regulators, and fintech partners to drive meaningful transformation across the financial landscape. Thomas' appointment reinforces our commitment to doing just that. His proven experience in advancing blockchain solutions for the benefit of the industry, along with his innovative and collaborative approach, will enable us to continue to advance our offerings and ultimately deliver the TradFi / DeFi ecosystem of the future," added Chakar. 

Sullivan's outlook

"I am honoured to be joining DTCC at such a pivotal time for the industry, when the TradFi and DeFi worlds begin to converge and digital assets take hold across the ecosystem. I am excited to collaborate with my colleagues and across the industry and look forward to seeing what we collectively achieve in the years to come," said Sullivan. 

Organisational reach

DTCC operates in over 20 locations worldwide, providing automated, centralised, and standardised financial transaction processing for broker/dealers, custodian banks, and asset managers. In 2024, DTCC's subsidiaries processed securities transactions valued at USD $3.7 quadrillion, and the depository subsidiary oversaw custody and asset servicing for securities issues from over 150 countries and territories, amounting to USD $99 trillion in value.

The Global Trade Repository service operated by DTCC processes more than 25 billion messages annually through locally registered, licensed, or approved trade repositories.

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