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Rajen Dalal, John Walker, and Keith Olson


Guava Technologies president and CEO Rajen Dalal has resigned, the Hayward, Calif.-based company said last week. John Walker, the chairman of Guava’s board of directors, has taken over the company as interim CEO.

In addition to his involvement with Guava, Walker is an investment advisor to MDS Capital and a vice chairman for biotechnology company Renovis. He is also a director of Discovery Partners International, Geron, and KAI Pharmaceuticals. In the past, Walker was CEO of KAI Pharmaceuticals, Bayhill Therapeutics, Centaur Pharmaceuticals, and Axys Pharmaceuticals, Guava said.

Keith Olson, Guava’s director of product commercialization, has also left the company, Inside Bioassays has learned. Olson has taken a position with Fremont, Calif.-based drug discovery firm DiscoverX, Guava said.


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