1、 UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 10-K(Mark One)ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31,2020orTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 193
2、4 For the transition period from to Commission File No.0-19731GILEAD SCIENCES,INC.(Exact Name of Registrant as Specified in Its Charter)Delaware94-3047598(State or Other Jurisdiction of Incorporation)(IRS Employer Identification No.)333 Lakeside Drive,Foster City,California 94404(Address of principa
3、l executive offices)(Zip Code)650-574-3000(Registrants Telephone Number,Including Area Code)Securities registered pursuant to Section 12(b)of the Act:Title of each classTrading Symbol(s)Name of each exchange on which registeredCommon Stock,par value,$0.001 per shareGILDThe Nasdaq Global Select Marke
4、tIndicate 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 Section 15(d)of the Act.Yes No Indicate by check mark whether the registran
5、t(1)has filed all reports required to be filed by Section 13 or 15(d)of the Securities Exchange Act of 1934 during the preceding12 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 90days.Yes No In
6、dicate 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 and post s