Shares of Boston Scientific Corp dropped roughly 4% Thursday following its deal to acquire blood-clot treatment company Penumbra. Boston Scientific's stock slipped $3.75, closing near $90.03 in late U.S. trading. Meanwhile, Penumbra surged around 12%, reaching $350.49.
Penumbra shares dropped Tuesday following comments from CEO Adam Elsesser about shifting the company’s manufacturing base. The stock slid 5.2% to $302.70 in late trading after hitting a low of $290.42 earlier. Elsesser told a conference that “All of our products today are manufactured in California. That’s going to change.”