X0306 4 2021-12-14 0 0001642896 Samsara Inc. IOT 0001375800 Chadwick Jonathan C/O SAMSARA INC. 350 RHODE ISLAND STREET 4TH FLOOR, SOUTH BUILDING SAN FRANCISCO CA 94103 1 0 0 0 Class B Common Stock 0.00 2021-12-14 4 A 0 488246 0.00 A Class B Common Stock 488246 488246 D The reported shares are represented by restricted stock units, or RSUs, of which 152,576 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 September 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. /s/ Adam Eltoukhy, attorney-in-fact on behalf of Jonathan L. Chadwick 2021-12-16