Sera Prognostics Inc is a health diagnostic company. It develops diagnostic tests for the early prediction of a woman's individualized risk of premature birth, preeclampsia, gestational diabetes, stillbirth, and other conditions. The proprietary proteomics and bioinformatics platform of the company helps to improve maternal and neonatal health by discovering, developing, and commercializing blood-based biomarker tests, and predictive analytic products and services. The Company operates as one operating segment, which is developing and commercializing its medical diagnostic products and services.