X0609 4 2026-05-18 0001610250 Boot Barn Holdings, Inc. BOOT 0001219766 STARRETT PETER false C/O BOOT BARN HOLDINGS, INC 17100 LAGUNA CANYON ROAD IRVINE CA 92618 true false false false 0 Common Stock 2026-05-18 4 A 0 1028 0 A 13157 D Common Stock 9599 I By Trust Common Stock 10442 D Consists of shares underlying restricted stock units granted under the Boot Barn Holdings, Inc. 2020 Equity Incentive Plan, subject to vesting on May 19, 2027. Consists of the total number of shares of common stock underlying restricted stock units held by the reporting person as of May 18, 2026 that remain subject to time-based vesting. Amount of securities beneficially owned consists of the number of shares of common stock held indirectly by the reporting person as of May 18, 2026, excluding any shares of common stock subject to further vesting conditions or deferred delivery. By Peter Starrett as trustee of The Starrett Family Trust, dated April 11, 1999. Consists of 10,442 shares underlying restricted stock units for which the vesting criteria have been satisfied but the delivery of such shares has been deferred. /s/ Peter Starrett 2026-05-20