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 31,2021orTRANSITION 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.000-19731GILEAD SCIENCES,INC.(Exact Name of Registrant as Specified in Its Charter)Delaware94-3047598(State or Other Jurisdiction of Incorporation or Organization)(IRS Employer Identification No.)333 Lakeside Drive,Foster City,California 94404(A
3、ddress of Principal Executive Offices,Including Zip Code)650-574-3000(Registrants Telephone Number,Including Area Code)Securities registered pursuant to Section 12(b)of the Exchange Act:Title of each classTrading Symbol(s)Name of each exchange on which registeredCommon Stock,par value,$0.001 per sha
4、reGILDThe Nasdaq Global Select MarketSecurities registered pursuant to Section 12(g)of the Exchange Act:NoneIndicate 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 re
5、ports pursuant to Section 13 or Section 15(d)of the Exchange 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 Exchange Act during the preceding 12 months(or forsuch shorter period that the registrant was required to fi
6、le 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 pr