X0306 4 2022-03-15 0 0001642896 Samsara Inc. IOT 0001895111 Biswas Sanjit C/O SAMSARA INC., 350 RHODE ISLAND ST. 4TH FLOOR, SOUTH BUILDING SAN FRANCISCO CA 94103 1 1 1 0 Chief Executive Officer Class A Common Stock 2022-03-15 4 A 0 731505 0.00 A 731505 D Class B Common Stock 2022-03-15 4 M 0 717559 0.00 D Class B Common Stock 717559 1308490 D Class B Common Stock 0.00 2022-03-15 4 M 0 717559 0.00 A Class A Common Stock 717559 2004196 D Class B Common Stock 0.00 Class A Common Stock 84962664 84962664 I See footnote Class B Common Stock 0.00 Class A Common Stock 4155371 4155371 I See footnote Class B Common Stock 0.00 Class A Common Stock 15591942 15591942 I See footnote Class B Common Stock 0.00 Class A Common stock 2292432 2292432 I See footnote Class B Common Stock 0.00 Class A Common Stock 2292432 2292432 I See footnote Class B Common Stock 0.00 Class A Common Stock 250000 250000 I See footnote Class B Common Stock 0.00 Class A Common Stock 250000 250000 I See footnote Class B Common Stock 0.00 Class A Common Stock 250000 250000 I See footnote Class B Common Stock 0.00 Class A Common Stock 250000 250000 I See footnote Class B Common Stock 0.00 Class A Common Stock 1286597 1286597 I See footnote Represents restricted stock units, or "RSUs" that vest in 16 equal quarterly installments following March 17, 2022. The reported shares represent RSUs, of which 590,930 vested on December 14, 2021 that were previously reported, 126,629 shares vested on March 15, 2022 and the remaining shares vest in quarterly installments through December 15, 2024. Each RSU represents a contingent right to receive one share of Issuer Class B Common Stock. 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. Consists of shares held by SB and HB, Co-Trustees of the Biswas Family Trust u/a/d 7/13/2012, over which Mr. Biswas has voting or investment power. Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I u/a/d 11/11/2021, over which Mr. Biswas has voting or investment power. Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust II u/a/d 10/14/2021, over which Mr. Biswas has voting or investment power. Consists of shares held by HB, Trustee of The HB 2020 Annuity Trust u/a/d 12/2/2020, over which Mr. Biswas has voting or investment power. Consists of shares held by Sanjit Biswas, Trustee of The Sanjit Biswas 2020 Annuity Trust u/a/d 12/2/2020, over which Mr. Biswas has voting or investment power. Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I-A u/a/d 11/11/2021, over which Mr. Biswas has voting or investment power. Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I-A fbo REB u/a/d 11/11/2021, over which Mr. Biswas has voting or investment power. Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I-A fbo NAmB u/a/d 11/11/2021, over which Mr. Biswas has voting or investment power. Consists of shares held by Jordan Park Trust Company, LLC, Trustee of The Biswas Trust I-A fbo NAlB u/a/d 11/11/2021, over which Mr. Biswas has voting or investment power. Consists of shares held by Mr. Biswas' spouse. /s/ Adam Eltoukhy, attorney-in-fact on behalf of Sanjit Biswas 2022-03-17