Samsara, Inc. (IOT) experienced a significant after-hours plunge of 5.28% following the release of its first-quarter fiscal year 2027 financial results. The move occurred in extended trading after the market close on Thursday.

The company reported strong Q1 performance with adjusted earnings per share of $0.17, surpassing the IBES estimate of $0.13. Revenue for the quarter reached $478.8 million, also beating the estimate of $455.2 million. The adjusted operating margin for Q1 was 19%.

However, investor sentiment turned negative as the company provided its outlook for the second quarter. Samsara guided for an adjusted operating margin of 18% for Q2, representing a sequential decline from the 19% achieved in the first quarter. Additionally, while the company's revenue and EPS guidance for Q2 and the full fiscal year came in above analyst estimates, the projected contraction in operating margins appears to have triggered the sell-off. The stock had also rallied approximately 25% ahead of the earnings report, leading to concentrated profit-taking pressure once the earnings catalyst was realized.