X0306 4 2022-12-15 0 0001642896 Samsara Inc. IOT 0001181469 BOSTROM SUSAN L C/O SAMSARA INC. 1 DE HARO STREET SAN FRANCISCO CA 94107 1 0 0 0 Class A Common Stock 2022-12-15 4 C 0 150000 0.00 A 256821 D Class B Common Stock 2022-12-15 4 C 0 150000 0.00 D Class A Common Stock 150000 0 D Certain reported shares are represented by restricted stock units, or RSUs, of which 15,000 shares vested on December 15, 2022 and the remaining 135,000 RSUs vest in quarterly installments through March 15, 2025. The RSUs, which were to be settled for shares of Class B Common Stock, have been modified at the reporting person's election to be settled for shares of Class A Common Stock. Each RSU represents a contingent right to receive one share of Issuer Class A Common Stock. /s/ Adam Eltoukhy, attorney-in-fact on behalf of Susan L. Bostrom 2022-12-19