Howe attributed the margin improvement primarily to mix shifting toward higher-margin products, as well as better manufacturing overhead absorption. Operating expenses were $35.5 million, including $19 million in R&D and $16.5 million in SG&A, which she said reflected higher headcount, variable compensation tied to revenue performance, and continued investment in the company’s roadmap.Howe said Q4 revenue rose 36% sequentially and came in “significantly higher than expected” as customer demand strengthened ...