



Employees at Citadel rank Kenneth Griffin in the Top 20% of CEOs in Fort Lauderdale, FL. Similarly, employees at Hudson River Trading rank Oaz Nir, Jason Carroll, Prashant Lal in the Top 5% of CEOs in Buffalo, NY. Employees rate their CEO differently based on the frequency of interaction, ability to affect company culture, and drive measurable results.

CEO of Citadel
BIO: Kenneth C. Griffin is the Founder and Chief Executive Officer of Citadel, one of the world’s leading alternative investment firms. Ken is also the Founder and Non-Executive Chairman of Citadel Securities, one of the world’s preeminent market makers.

CEO of Hudson River Trading
BIO: Jason Carroll, Prashant Lal, and Oaz Nir are active managing partners at HRT, and are closely involved in the day-to-day operations of the firm. Prashant focuses on the firm’s growth into new markets and asset classes, Jason on the ongoing expansion and improvement of HRT’s trading technology, and Oaz on developing HRT’s trading algorithms. As leaders, they provide support and guidance to HRTers as the company grows, and new generations of talent take on more responsibility. All partners work with the code base on a daily basis.

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Diverse Employees at Citadel rated their CEO an A

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At Citadel, employees in the Engineering department rate Kenneth Griffin the highest. At Hudson River Trading, the Engineering department's employees rate their CEO highest. And, 100% of Hudson River Trading's employees approve of their CEO's management style.