X0306 4 2019-02-15 0001326801 Facebook Inc FB 0001607459 Cox Christopher K C/O FACEBOOK, INC. 1601 WILLOW ROAD MENLO PARK CA 94025 1 Chief Product Officer Class A Common Stock 2019-02-15 4 M 0 26847 0 A 85331 D Class A Common Stock 2019-02-15 4 F 0 13311 163.95 D 72020 D Class A Common Stock 2019-02-15 4 M 0 10023 0 A 82043 D Class A Common Stock 2019-02-15 4 F 0 4970 163.95 D 77073 D Class A Common Stock 2019-02-15 4 M 0 8255 0 A 85328 D Class A Common Stock 2019-02-15 4 F 0 4093 163.95 D 81235 D Class A Common Stock 2019-02-15 4 C 0 34122 0 A 115357 D Class A Common Stock 2019-02-15 4 F 0 16016 163.95 D 99341 D Class A Common Stock 2019-02-19 4 S 0 5300 160.35 D 94041 D Class A Common Stock 74107 I Christopher K. Cox 2017 Annuity Trust u/a/d 10/24/2017 Class A Common Stock 125893 I Christopher K. Cox 2018 Annuity Trust II U/A DTD 12/19/2018 Class A Common Stock 74107 I Christopher K. Cox 2018 Annuity Trust III U/A DTD 12/19/2018 Restricted Stock Units (RSU) (Class A) 2019-02-15 4 M 0 26847 0 D 2023-05-05 Class A Common Stock 26847 241624 D Restricted Stock Units (RSU) (Class A) 2019-02-15 4 M 0 10023 0 D 2024-03-16 Class A Common Stock 10023 40090 D Restricted Stock Units (RSU) (Class A) 2019-02-15 4 M 0 8255 0 D 2025-03-15 Class A Common Stock 8255 66035 D Restricted Stock Unit (RSU) (Class B) 2019-02-15 4 M 0 34122 0 D 2022-05-02 Class B Common Stock 34122 238857 D Class B Common Stock 2019-02-15 4 M 0 34122 0 A Class A Common Stock 34122 34122 D Class B Common Stock 2019-02-15 4 C 0 34122 0 D Class A Common Stock 34122 0 D Represents the number of shares of Class A Common Stock that have been withheld by the issuer to satisfy its income tax withholding and remittance obligations in connection with the net settlement of the RSUs and does not represent a sale by the reporting person. Represents the number of shares that were acquired upon conversion of Class B Common Stock to Class A Common Stock in connection with the settlement of the Restricted Stock Units ("RSUs") listed in Table II. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the holder. Shares held of record by Christopher K. Cox, Trustee of The Christopher K. Cox 2017 Annuity Trust u/a/d 10/24/2017. Shares held of record by Christopher K. Cox, Trustee of The Christopher K. Cox 2018 Annuity Trust II U/A DTD 12/19/2018. Shares held of record by Christopher K. Cox, Trustee of The Christopher K. Cox 2018 Annuity Trust III U/A DTD 12/19/2018. Each RSU represents a contingent right to receive 1 share of the issuer's Class A Common Stock upon settlement. The RSUs vest as to 1/16th of the total shares quarterly, beginning on August 15, 2017, subject to continued service through each vesting date. The RSUs vest as to 1/16th of the total shares quarterly, beginning on May 15, 2016, subject to continued service through each vesting date. The RSUs vest as to 1/16th of the total shares quarterly, beginning on February 15, 2017, subject to continued service through each vesting date. Each RSU represents a contingent right to receive 1 share of the issuer's Class B Common Stock upon settlement. The Class B Common Stock is convertible into the issuer's Class A Common Stock on a 1-for-1 basis (a) at the holder's option or (b) upon certain transfers of such shares, and has no expiration date. The holder elected to convert the shares of Class B Common Stock into Class A Common Stock on a 1-for-1 basis. /s/ Michael Johnson as attorney-in-fact for Christopher K. Cox 2019-02-20