David U’Prichard has been elected by stockholders to the board of directors of Invitrogen, effective April 29, 2004. U’Prichard is a venture partner with Apax Partners and is president of Druid Consulting, a pharma and biotech consulting firm. Prior to these positions, U’Prichard was CEO of 3-Dimensional Pharmaceuticals. Prior to that, he served as chairman of R&D at SmithKline Beecham. He has also had various positions at ICI/Zeneca.