He Turned Down Ken Griffin to Run His Own Fund. That Was $20 Billion Ago. - WSJ

This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. https://www.wsj.com/finance/investing/hamza-lemssouguer-arini-capital-hedge-fund-firm-99c961d5 Listen (8 min) By | Photography by Sandra Mickiewicz for WSJ April 3, 2026 10:00 pm ET In 2020, Hamza Lemssouguer received an offer to manage several billion dollars for hedge-fund titan Ken Griffin, the founder of Citadel. He turned it down. Now Lemssouguer manages $20 billion at his own hedge-fund firm. The 35-year-old launched Arini Capital with $1.3 billion and a reputation for bold bets in 2022 and has been the fastest-growing new hedge-fund manager since then, according to data-provider Hedge Fund Research. He’s also drawn fire from competitors eager to see an end to his run of winning short trades, be

This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. https://www.wsj.com/finance/investing/hamza-lemssouguer-arini-capital-hedge-fund-firm-99c961d5 Listen (8 min) By | Photography by Sandra Mickiewicz for WSJ April 3, 2026 10:00 pm ET In 2020, Hamza Lemssouguer received an offer to manage several billion dollars for hedge-fund titan Ken Griffin, the founder of C