Lantheus Holdings, which sells medical imaging agents used in the diagnosis of cardiovascular diseases, postponed its IPO on Wednesday, citing poor market conditions. The North Billerica, MA-based company was founded in 1956 and booked $286 million in sales for the 12 months ended 3/31/2014. Lantheus Holdings initially filed confidentially on 3/25/2014. Citi and Jefferies & Co. were set to be the joint bookrunners on the deal.
