Pacemakers: Penumbra Is Out Of The Blocks Quickly In 2021 Embattled medical devices company Penumbra Inc. was quietly having an impressive 2021, market wise, before it got loud about it Monday, releasing aggressive revenue guidance ahead of its yet-to-be-scheduled Q4 earnings call. The company then followed up with a tour-de-force performance at the JP Morgan Healthcare Conference, where the sell side hosts were all too happy to ask CEO Adam Elsesser some more “great questions,” and give the executive room to do the only thing he really needs to do right now: control the narrative.