1.Nature of Busines s Tabula Rasa HealthCare, Inc. (the Company) provides patient-specific, data-driven technology and solutions that enable healthcare organizations to optimize medication regimens to improve patient outcomes, reduce hospitalizations, lower healthcare costs and manage risk. The Company delivers its solutions through a comprehensive suite of technology-enabled products and services for medication risk management and risk adjustment. The Company serves healthcare organizations that focus on populations with complex healthcare needs and extensive medication requirements. The Company's suite of cloud-based software solutions provides prescribers, pharmacists and healthcare organizations with sophisticated and innovative tools to better manage the medication-related needs of patients. On October 4, 2016, the Company closed its initial public offering (the IPO) in which the Company issued and sold 4,300,000 shares of common stock, plus the exercise of the underwriters option to purchase an additional 645,000 shares of common stock, at an issuance price of $12.00 per share. The Company received net proceeds of $55,186 after deducting underwriting discounts and commissions of $4,154 but before deducting other offering expenses. In addition, upon the closing of the IPO, all of the Companys then outstanding ClassA Non-Voting common stock and ClassB Voting common stock, totaling 5,583,405 shares, were automatically redesignated into shares of common stock, and all of the Companys then outstanding convertible preferred stock converted into an aggregate of 5,089,436 shares of common stock. In addition, 202,061 shares of common stock were issued upon the automatic net exercise of outstanding warrants to purchase common stock that would have otherwise terminated immediately prior to the closing of the IPO. Additionally, in connection with the closing of the IPO, outstanding warrants to purchase shares of preferred stock converted into warrants to purchase an aggregate of 463,589 shares of common