Capitolis Names Pekin President
Posted by Colin Lambert. Last updated: December 9, 2025
Capitolis has announced the appointment of Okan Pekin as president of the firm, based in London he will report to Gil Mandelzis, CEO and founder.
Pekin is tasked with helping scale Capitolis and drive the company’s next phase of growth, and brings over 35 years of global financial services experience, including senior leadership roles at Citi until his retirement in April.
Most recently at Citi, Pekin was global head of securities services, previously, he led equity prime finance, futures & clearing, and FX prime brokerage, and earlier held global leadership positions in investor services, FX, and local markets. He also led derivatives sales in Europe and debt capital markets for frequent issuers for Citi.
Pekin has served as a board member at Capitolis for five years on behalf of Citi and, the firm says, understands the ins and outs of its business and the overall market it serves.
“Capitolis has grown tremendously and now, we’re preparing for our next phase and focusing on what’s needed to continue our momentum,” says Mandelzis. “With that growth comes complexity across our business, products, clients, and delivery, and getting this right is critical to maximizing our potential. I’m thrilled to welcome Okan, someone I know and trust, who brings exceptional experience and a proven track record of delivering at scale in global financial services with the highest level of professionalism. I am confident about our future and excited about the opportunity to continue to deepen strategic client relationships, drive further product innovation, and advance our long-term growth.”
Pekin adds, “We are building a truly consequential global company that will have a lasting, meaningful impact on the financial services industry. Having worked with this talented team over the years, I’m eager to get started and look forward to partnering with Gil to scale the business by driving excellence and expanding our platform as we continue to innovate.”


