1、 UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549_FORM 10-K_(Mark One)xANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31,2017orTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF
2、1934For the transition period from to Commission File Number:001-35551_FACEBOOK,INC.(Exact name of registrant as specified in its charter)_ Delaware20-1665019(State or other jurisdiction of incorporation or organization)(I.R.S.Employer Identification Number)1601 Willow Road,Menlo Park,California 940
3、25(Address of principal executive offices and Zip Code)(650)543-4800(Registrants telephone number,including area code)_Securities registered pursuant to Section 12(b)of the Act:Class A Common Stock,$0.000006 par valueThe Nasdaq Stock Market LLC(Title of each class)(Name of each exchange on which reg
4、istered)Securities registered pursuant to Section 12(g)of the Act:None(Title of class)Indicate by check mark if the registrant is a well-known seasoned issuer,as defined in Rule 405 of the Securities Act.Yes x No Indicate by check mark if the registrant is not required to file reports pursuant to Se
5、ction 13 or Section 15(d)of the Act.Yes No xIndicate 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(Exchange Act)duringthe preceding 12 months(or for such shorter period that the registrant was required t
6、o file such reports),and(2)has been subject to such filing requirements for the past90 days.Yes x No Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website,if any,every Interactive Data File required to be submitted andposted pursuant to Rule 4