Rockley Photonics Holdings Limited is a Cayman Islands-incorporated technology company headquartered in Altrincham, United Kingdom, specializing in the research and development of integrated silicon photonics chipsets. The company designs sensing platforms for non-invasive, multi-modal biomarker monitoring, targeting consumer wearables and medical technology markets through its VitalSpex and Bioptx product lines. Rockley maintains strategic relationships with major global manufacturers of smartwatches and medical devices, operating as a publicly traded entity on the NYSE under the ticker RKLY.