Serge Tismen expected to formally join Moelis in Sept: Reuters

Serge Tismen expected to formally join Moelis in Sept: Reuters

Citigroup's global head of clean energy transition investment banking, Serge Tismen, is set to formally join boutique bank Moelis in September, according to sources familiar with the matter [1]. Tismen will advise clients on dealmaking broadly and report to Anton Sahazizian, Moelis' head of mergers and acquisitions.

Tismen has worked within Citi's investment bank for over two decades and led a new unit in 2021 to capture more business from companies working on reducing carbon emissions through various initiatives [2]. His departure comes at a time when clean energy has faced pressure from U.S. President Donald Trump's administration, which has sought to roll back environmental regulations and measures put in place by former President Joe Biden [1].

While broader dealmaking was subdued in the first half of 2025 due to volatility triggered by Trump's trade war, sentiment is buoyant for the rest of the year, with forecasts for significant deal flow and a host of mega-mergers [1]. Tismen's expertise in clean energy and his extensive experience in investment banking are expected to bring valuable insights to Moelis.

References:
[1] https://de.tradingview.com/news/reuters.com,2025:newsml_L8N3TM1N9:0/
[2] https://www.tradingview.com/news/reuters.com,2025:newsml_L1N3TL1DX:0-citigroup-s-head-of-energy-transition-decamps-for-moelis-role-sources-say/