X0306 4 2021-12-14 0 0001642896 Samsara Inc. IOT 0001895104 McCall Andy C/O SAMSARA INC. 350 RHODE ISLAND STREET 4TH FLOOR, SOUTH BUILDING SAN FRANCISCO CA 94103 0 1 0 0 See remarks Class B Common Stock 0.00 2021-12-14 4 A 0 1700000 0.00 A Class B Common Stock 1700000 1700000 D Class B Common Stock 0.00 2021-12-14 4 F 0 110998 0.00 D Class A Common Stock 110998 1589002 D The reported shares are represented by restricted stock units, or RSUs, of which 495,833 vested upon the effectiveness of the Issuer's registration statement in connection with its initial public offering of Class A Common Stock and the remaining shares vest in quarterly installments beginning on March 15, 2022 through December 15, 2024. The Class B Common Stock is convertible at any time, at the holder's election, into Class A Common Stock on a 1:1 basis. In an exempt disposition to the Issuer under Rule 16b-3(e), the Reporting Person remitted shares to the Issuer in connection with the satisfaction of tax withholding obligations arising out of the vesting of RSUs.. Executive Vice President, Chief Revenue Officer /s/ Adam Eltoukhy, attorney-in-fact on behalf of Andy McCall 2021-12-16