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Kadans ties up Ribbens CEO promotion

Current chief investment officer steps up as Michel Leemhuis changes roles
Steijn Ribbens. (Kadans)
Steijn Ribbens. (Kadans)
CoStar News
October 16, 2025 | 8:19 AM

AXA IM Alts, the alternative investor with €188 billion of assets under management, has promoted Steijn Ribbens to chief executive of Kadans Science Partner, its life sciences development business.

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