X0609 4/A 2026-06-09 2026-06-15 0 0002090646 Boost Run Inc. BRUN 0002028811 Goodrich Sean false C/O BOOST RUN INC. 5 REVERE DRIVE, SUITE 200 NORTHBROOK IL 60062 1 0 0 0 0 Class A Common Stock 2026-06-09 4 M 0 1968750 1.75 A 4034135 I By Goodrich ILJMS LLC On June 15, 2026, the reporting person filed a Form 4 (the "Form 4") which inadvertently reported that 1,272,885 shares were acquired. The number of shares actually acquired was 1,968,750. This amendment is being filed to correctly state the number of shares acquired reported on the Form 4 and the number of shares indirectly held thereafter. This amendment is being filed to remove the Table II entry from the Form 4 filed on June 15, 2026, which inadvertently reported that 1,101,986 Warrants were disposed of. No warrants were disposed of or acquired by the reporting person on the transaction date. /s/ Sean Goodrich 2026-08-28