David P. Warren

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David P. Warren
Occupation Chief Financial Officer
Employer London Stock Exchange
Location London, UK
LinkedIn Profile
Website www.lseg.com

David Warren is a London-based exchange and bank executive who currently serves as the chief financial officer at the London Stock Exchange. He took over the position on July 2, 2012. The exchange announced in October 2019 that Warren will step down from the position and retire by the end of 2020.[1][2]

In November of 2017, Warren was appointed interim CEO of LSEG when Xavier Rolet suddenly stepped down following a row with shareholders.[3]


Warren served as CFO at Nasdaq OMX from 2001 to 2009. He joined Nasdaq in January 2001 as its chief administrative officer. He stepped down from that position in July 2009. Adena Friedman, then Nasdaq's executive vice president of corporate strategy and global data products, took over the position. Warren remained with the company through the end of 2009.[4] Following that, he spent two years as a senior adviser to the CEO of NASDAQ OMX.

Warren joined Nasdaq from the Long Island Power Authority (LIPA), where he was chief financial officer. While there, he led the efforts to raise nearly $7 billion to finance the acquisition of the Long Island Lighting Company. He managed seven separate debt offerings over a five-month period, including a $3.5 billion issue of tax-exempt bonds, the largest single offering ever sold in the municipal market. The Institutional Investor and Euromoney magazine named this issue “Deal of the Year.” [5]

Before his appointment at LIPA, he served as deputy treasurer of the State of Connecticut.

Earlier, he was a vice president at CS First Boston, where he specialized in the financing of infrastructure, economic development, and transportation projects for state and local governments. [6]


He holds a masters of business administration degree from the Yale School of Management and a bachelor of arts degree from Wesleyan University.


  1. LSE lines up interim chief in case of abrupt Xavier Rolet exit. The Financial Times.
  2. London Stock Exchange seeks finance chief to replace David Warren. Financial Times.
  3. London Stock Exchange CFO on stepping up in a crisis. Financial Director.
  4. Nasdaq OMX Group CFO to step down in July. Forbes.com.
  5. Biography of David P. Warren. Sec.gov.
  6. Executive Team. London Stock Exchange.