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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM ΤΟ Aligos Therapeutics , Inc. ( Exact name of Registrant as specified in its Charter ) Delaware ( State or other jurisdiction of incorporation or organization ) One Corporate Drive , 2nd Floor South San Francisco , California ( Address of principal executive offices ) Commission File Number 001-39617 Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , par value , $ 0.0001 per share 82-4724808 ( I.R.S. Employer Identification No. ) Registrant's telephone number , including area code : ( 800 ) 466-6059 Trading Symbol ( s ) ALGS 94080 ( Zip Code ) Name of each exchange on which registered The Nasdaq Stock Market LLC ( Nasdaq Global Select Market ) Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the Registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . YES NO > Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Act . YES NO " Indicate by check mark whether the Registrant : ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the Registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . YES > NO Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the Registrant was required to submit such files ) . YES > NO Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer Non - accelerated filer Accelerated filer Smaller reporting company Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the Registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . YES NO The registrant's common stock was not publicly traded as of the last business day of the registrant's most recently completed second fiscal quarter . As of March 18 , 2021 , the registrant had 38,143,228 shares of common stock , $ 0.0001 par value per share , outstanding , comprised of 35,050,890 shares of voting common stock , $ 0.0001 par value per share and 3,092,338 shares of non - voting common stock , $ 0.0001 par value per share . DOCUMENTS INCORPORATED BY REFERENCE Portions of the Registrant's Definitive Proxy Statement relating to the 2021 Annual Meeting of Stockholders , which will be filed with the Securities and Exchange Commission within 120 days after the end of the Registrant's fiscal year ended December 31 , 2020 , are incorporated by reference into Part III of this Report .