X0306 4 2018-01-15 0 0001447599 FITBIT INC FIT 0001645079 MISSAN ANDY C/O FITBIT, INC. 199 FREMONT ST, 14TH FLOOR SAN FRANCISCO CA 94105 0 1 0 0 EVP, General Counsel, Sect. Class A Common Stock 2018-01-15 4 M 0 4983 0 A 119964 D Class A Common Stock 2018-01-15 4 M 0 1900 0 A 121864 D Class A Common Stock 2018-01-15 4 M 0 2289 0 A 124153 D Class A Common Stock 2018-01-16 4 F 0 4026 5.64 D 120127 D Restricted Stock Units 0 2018-01-15 4 M 0 4983 D Class A Common Stock 4983 39862 D Restricted Stock Unit 0 2018-01-15 4 M 0 1900 D Class A Common Stock 1900 17100 D Restricted Stock Units 0 2018-01-15 4 M 0 2289 D Class A Common Stock 2289 20594 D Vesting of restricted stock units ("RSUs") granted to the Reporting Person on July 20, 2017. Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of on this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of RSUs. The Reporting Person did not sell or otherwise dispose of any of the shares reported on this Form 4 for any reason other than to cover required taxes. Each RSU represents a contingent right to receive 1 share of the Issuer's Class A common stock upon settlement for no consideration. 1/10 of the RSUs will vest on October 15, 2017, and the remainder will vest quarterly over the next 9 quarters in equal installments, until such time as the RSUs are 100% vested, subject to the continuing employment of the Reporting Person on each vesting date. Shares of the Issuer's Class A common stock will be delivered to the Reporting Person upon vesting. On July 20, 2017, the Issuer canceled, pursuant to the Issuer's tender offer, options granted to the Reporting Person on February 27, 2015 and March 15, 2016. In exchange for the options, the Reporting Person received these RSUs. 1/11 of the RSUs will vest on October 15, 2017, and the remainder will vest quarterly over the next 10 quarters in equal installments, until such time as the RSUs are 100% vested, subject to the continuing employment of the Reporting Person on each vesting date. Shares of the Issuer's Class A common stock will be delivered to the Reporting Person upon vesting. /s/Juliana Chen, attorney-in-fact 2018-01-17