1、201 Annual Report9?UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549Form 10-K(Mark One)ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIESEXCHANGE ACT OF 1934For the fiscal year ended December 31,2019Or TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THESECURITIES EX
2、CHANGE ACT OF 1934For the transition period fromtoCommission File Number 001-34899Pacific Biosciences of California,Inc.(Exact name of registrant as specified in its charter)Delaware16-1590339(State or other jurisdiction ofincorporation or organization)(I.R.S.EmployerIdentification No.)1305 OBrien D
3、riveMenlo Park,CA 9402594025(Address of principal executive offices)(Zip Code)(Registrants telephone number,including area code)(650)521-8000Securities 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
4、.001 per sharePACBThe NASDAQ Stock Market LLCSecurities registered pursuant to Section 12(g)of the 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 rep
5、orts pursuant to Section 13 or Section 15(d)of theAct.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 SecuritiesExchange Act of 1934 during the preceding 12 months(or for such shorter period that the registrant was requir
6、ed 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 pursuantto Rule 405 of Regulation S-T(232.405 of this chapter)during