X0508 4 2023-09-14 0 0001810560 REVELATION BIOSCIENCES, INC. REVB 0001287235 TIDMARSH GEORGE F C/O REVELATION BIOSCIENCES, INC. 4660 LA JOLLA VILLAGE DR., SUITE 100 SAN DIEGO CA 92122 1 0 0 0 0 Common Stock 2023-09-14 4 S 0 12000 0.75 D 52848 D Common Stock 2023-09-15 4 S 0 9500 0.73 D 43348 D Common Stock 2023-09-18 4 S 0 4000 0.74 D 39348 D Common Stock 43525 I By Trust Shares are held by George Tidmarsh, Trustee George Francis Tidmarsh 2021 Irrevocable Trust with respect to which George Tidmarsh is a trustee. /s/ J.P. Galda, as attorney-in-fact for George F Tidmarsh 2023-09-18