X0508 4 2025-11-24 0 0001772921 OneWater Marine Inc. ONEW 0001789635 Singleton Philip Austin Jr. 6275 LANIER ISLANDS PARKWAY BUFORD GA 30518 1 1 0 1 Executive Chairman See Remarks 0001887311 Auburn OWMH, LLLP 6275 LANIER ISLANDS PARKWAY BUFORD GA 30518 0 0 0 1 Member of 10% Ownership Group 0001886667 Singleton Asset Management, LLC 6275 LANIER ISLANDS PARKWAY BUFORD GA 30518 0 0 0 1 Member of 10% Ownership Group 0001887310 Singleton Michelle 6275 LANIER ISLANDS PARKWAY BUFORD GA 30518 0 0 0 1 Member of 10% Ownership Group 0001887308 Philip Singleton Irrevocable Trust, dated December 24, 2015 6275 LANIER ISLANDS PARKWAY BUFORD GA 30518 0 0 0 1 Member of 10% Ownership Group 0001887309 Austin Singleton Irrevocable Trust, dated December 30, 2015 6275 LANIER ISLANDS PARKWAY BUFORD GA 30518 0 0 0 1 Member of 10% Ownership Group 0 Class A common stock par value $0.01 2025-11-24 4 P 0 43179 11.47 A 755423 I By Auburn OWMH, LLLP Class A common stock, par value $0.01 161840 D Class A common stock, par value $0.01 639021 I By Austin Singleton Irrevocable Trust, Dated December 30, 2015 Class A common stock, par value $0.01 345678 I By Philip Singleton Irrevocable Trust, Dated December 24, 2015 The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were purchased in multiple transactions at prices ranging from $11.22 to $11.55, inclusive. The Reporting Person undertakes to provide to OneWater Marine Inc., any security holder of OneWater Marine Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range. Member of 10% ownership group. /s/ Jack Ezzell, Authorized Signatory for Philip Austin Singleton, Jr. 2025-11-25 /s/ Jack Ezzell, as Attorney-in-Fact for Michelle Singleton, as Manager of Singleton Asset Management, LLC, in its capacity as general partner of Auburn OWMH, LLLP 2025-11-25 /s/ Jack Ezzell, as Attorney-in-Fact for Michelle Singleton, as Manager of Singleton Asset Management, LLC 2025-11-25 /s/ Jack Ezzell, as Attorney-in-Fact for Michelle Singleton 2025-11-25 /s/ Jack Ezzell, Attorney-in-Fact for Scott Beville, as Co-Trustee of Philip Singleton Irrevocable Trust, dated December 24, 2015 2025-11-25 /s/ Jack Ezzell, Attorney-in-Fact for Scott Beville, as Co-Trustee of Austin Singleton Irrevocable Trust, dated December 30, 2015 2025-11-25