Penumbra stock pops after Boston Scientific’s $14.5 billion buyout — what PEN investors watch next
New York, Jan 15, 2026, 16:52 (EST) — After-hours Penumbra, Inc. shares jumped 11.8% to $350.49 in after-hours trading Thursday after Boston Scientific announced plans to acquire the clot-removal device maker in a roughly $14.5 billion deal. The stock reached an after-hours high of $369.84 but remained about $23 short of the $374 offer price, reflecting lingering merger risk and…