1. On what exchange are Prometheus’ shares traded, what is the ticker symbol and when did the company go public?

Prometheus trades on the NASDAQ Global Select Market under the symbol RXDX. The company is expected to close its initial public offering on March 16, 2021.

2. Where is Prometheus’ corporate headquarters?

9410 Carroll Park Drive
San Diego, California 92121

3. When does Prometheus’ fiscal year end?

The company’s fiscal year ends on December 31st.

4. Does Prometheus pay dividends?

Prometheus does not expect to declare or pay any cash or other dividends on our common stock.

5. Does Prometheus have a direct stock purchase plan?

Prometheus does not currently have a direct stock purchase plan.

6. Where can I find all of Prometheus’ SEC filings? Where can I download and view annual and quarterly reports?

Quarterly and annual reports, as well as other SEC filings, can be accessed via the SEC Filings section on this page or directly from the SEC at www.sec.gov.

7. Who is Prometheus’ transfer agent and who do I contact with questions about my stock certificates? How can I contact Prometheus’ transfer agent?

Computershare Trust Company, N.A.
150 Royall Street
Canton, Massachusetts 02021