144 0001375800 XXXXXXXX LIVE 0001642896 SAMSARA INC 001-41140 1 DE HARO STREET SAN FRANCISCO CA 94107 4159852400 JONATHAN CHADWICK Director Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

20000 731200.00 358191765 12/26/2025 NYSE Common 03/15/2024 Restricted Stock Units Issuer N 20000 03/15/2024 N/A Y The securities to be sold were acquired upon the vesting of restricted stock units on 3/15/2024 and 07/01/2024. Sales that were executed on December 26, 2025 are being reported on this Form 144 filed on December 29, 2025 given December 24, 2025 and December 26, 2025 were treated as federal holidays for EDGAR filing purposes. 12/26/2025 09/25/2025 /s/ Jonathan Chadwick