""Umesh Subramanian will be taking on new challenges and opportunities at Citadel. After more than seven years as our Chief Technology Officer, Umesh will be working with me on important initiatives outside of technology, and we will also support his personal interest in pursuing new endeavors outside of Citadel," Beeson said in the memo, a copy of which was seen by Business Insider."
"Andrew Janian, who joined in 2021 as head of equities engineering after a long career at Two Sigma, left in early 2025 but is returning to the firm and will step into Subramanian's role on an interim basis, effective immediately, according to the memo. A Citadel spokesman declined to comment. Subramanian joined in 2018 from Goldman Sachs, where he spent 13 years and rose to partner and co-CTO."
Umesh Subramanian is stepping down as Citadel's chief technology officer after more than seven years in the role. He will remain with the firm and work on important initiatives outside of technology while also pursuing personal interests beyond Citadel. Andrew Janian is returning to Citadel and will serve as interim CTO effective immediately. Janian originally joined in 2021 as head of equities engineering after a long career at Two Sigma and had left in early 2025. Subramanian joined Citadel in 2018 from Goldman Sachs, where he spent 13 years and rose to partner and co-CTO. Citadel also saw former CFO Andrew Philipp depart in late November for Schonfeld. Citadel’s Wellington fund returned 10.2% last year, below peers.
Read at Business Insider
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