X0609 4 2026-07-01 0001699963 Neutron Holdings, Inc. LIME 0002101817 Smith Sarah Anne false C/O NEUTRON HOLDINGS, INC. 444 TOWNSEND STREET, FL 1 SAN FRANCISCO CA 94107 true false Common Stock 2026-07-01 4 A 0 5627 0 A 5627 D Represents an award of restricted stock units ("RSUs"), which vests on the earlier of (i) the one-year anniversary of the award's vesting commencement date and (ii) immediately before the Issuer's first annual meeting following the award's vesting commencement date, subject to the Reporting Person's continuous service with the Issuer. /s/ Susie Giordano, Attorney-in-Fact 2026-07-02