X0609 4 2026-09-29 0 0002090646 Boost Run Inc. BRUN 0002130097 Georgakopoulos Harilaos false C/O BOOST RUN INC. 5 REVERE DRIVE, SUITE 200 NORTHBROOK IL 60062 1 1 1 0 Chief Operating Officer 0 Restricted Stock Units 2026-09-29 4 A 0 300000 0 A Common Stock 300000 300000 D Each restricted stock unit represents a contingent right to receive one share of common stock of Boost Run Inc. On September 29, 2026, the reporting person was granted 300,000 restricted stock units which will vest in substantially equal annual installments on each of the first three anniversaries of the September 29, 2026 Vesting Start Date, subject to continued service. /s/ Harry Georgakopoulos 2026-10-01