One of Valeant Pharmaceuticals Intl Inc (NYSE:VRX) (TSE:VRX)’s top shareholders on Tuesday threw his support behind its proposed takeover bid with a high-profile activist investor for Botox-maker Allergan, Inc. (NYSE:AGN).

“Allergan, Inc. (NYSE:AGN) and Valeant are a perfect match,” said hedge fund manager Jeff Ubben in an interview with CNBC. “We think it’s a really, really powerful combination.”