1、UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON,D.C.20549FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934For the quarterly period ended April 2,2023OR TRANSITION REPORT PURSUANT TO SECTION 13OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934For t

2、he transition period from _ to _COMMISSION FILE NUMBER 1-3619-PFIZER INC.(Exact name of registrant as specified in its charter)Delaware13-5315170(State of Incorporation)(I.R.S.Employer Identification No.)66 Hudson Boulevard East,New York,New York 10001-2192(Address of principal executive offices)(zi

3、p code)(212)733-2323(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,$0.05 par valuePFENew York Stock Exchange1.000%Notes due 2027PFE27New York Stock E

4、xchangeIndicate 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 thepreceding 12 months(or for such shorter period that the registrant was required to file such reports),and(2)has been subject to suc

5、h filing requirements for the past 90days.YesxNoIndicate 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 tha

6、t the registrant was required to submit such files).YesxNoIndicate by check mark whether the registrant is a large accelerated filer,an accelerated filer,a non-accelerated filer,a smaller reporting company,or an emerginggrowth company.See the definitions of“large accelerated filer,”“accelerated file