Protagonist Therapeutics, Inc 10-K

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities Market Information Our common stock trades on The Nasdaq Stock Market, LLC under the symbol “PTGX.” Stockholders As of the close of business on February 18, 2026, there were two stockholders of record of our common stock. The number of stockholders of record is based upon the actual number of stockholders registered at such date and does not include holders of shares in “street names” or persons, partnerships, associates, or corporations, or other entities identified in security listings maintained by depositories. Dividends To date, we have never declared or paid any cash dividends. The declaration of any future cash dividend will be at the discretion of our Board and will depend upon our earnings, if any, our capital requirements and financial position, our general economic conditions, and other pertinent factors determined by our Board. 59 Table of Contents Performance Graph The following is not deemed “filed” with the Securities and Exchange Commission and shall not be incorporated by reference into any filing we make under the Exchange Act or the Securities Act of 1933, as amended, whether made before or after the date hereof and irrespective of any general incorporation by reference language in such filing. The graph below shows the cumulative total stockholder return assuming an investment on December 31, 2020 in each of our common stock, the Nasdaq Composite Index and the Nasdaq Biotechnology Index. The graph compares the performance of a $100 investment in our common stock and in each index (assuming reinvestment of all dividends) from December 31, 2020 to December 31, 2025. Recent Sales of Unregistered Securities None. Issuer Purchases of Equity Securities None. Item 6. Reserved ​ ​ 60 Table of Contents