ONEW · OneWater Marine Inc.

The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.18, 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.

Represents shares held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $12.50 to $12.59, 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.

Represents shares held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $12.50 to $13.268, 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.

Represents shares held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $12.60 to $12.745, 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.

Represents shares held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

Represents shares held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

Represents shares held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

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 $10.57 to $11.18, 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.

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 $9.95 to $9.96, 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.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of the Issuer through such vesting date.

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 $12.31 to $12.85, 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.

The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Beekman Investment Partners AIV III-OWM, L.P. ("AIV III") is an investment fund that is managed by a general partner, Beekman Investment Group III, LLC. OWM BIP Investor, LLC is an investment vehicle wholly-owned by AIV III. The Reporting Person is the sole manager of Beekman Investment Group III, LLC.

The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Beekman Investment Partners AIV III-OWM, L.P. ("AIV III") is an investment fund that is managed by a general partner, Beekman Investment Group III, LLC. OWM BIP Investor, LLC is an investment vehicle wholly-owned by AIV III. The Reporting Person is the sole manager of Beekman Investment Group III, LLC.

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 $12.79 to $13.00, 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.

The shares sold and the directly owned shares reported herein are held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

The shares sold and the directly owned shares reported herein are held jointly with spouse.

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $14.00 to $14.06, 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.

Represents shares held jointly with spouse.

Includes shares that were inadvertently omitted from the Reporting Person's original Form 3 (9,118 additional shares held jointly by Mr. and Mrs. Bos, 90 additional shares held by Legendary Investments, LLC, and 4,000 additional shares held by Legendary, LLC).

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

The price reported in column 4 is a weighted average price, rounded to the nearest cent. These shares were sold in multiple transactions at prices ranging from $14.00 to $14.55, 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.

Represents shares held jointly with spouse.

Includes shares that were inadvertently omitted from the Reporting Person's original Form 3 (9,118 additional shares held jointly by Mr. and Mrs. Bos, 90 additional shares held by Legendary Investments, LLC, and 4,000 additional shares held by Legendary, LLC).

Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interests in, such securities for purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, or for any other purpose.

Represents shares withheld to cover tax withholding obligations in connection with the vesting of the restricted stock units reported on this form.

Represents shares withheld to cover tax withholding obligations in connection with the vesting of the restricted stock units reported on this form.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan that were previously subject to performance-based criteria. The award vests in three installments on October 1, 2025, October 1, 2026 and October 1, 2027, subject to continued employment through the applicable vesting date.

On December 16, 2025, the Reporting Person gifted 15,988 shares of Class A common stock of OneWater Marine Inc. to a limited partnership of which the Reporting Person is the sole limited partner and the Reporting Person and his spouse are the sole stockholders of the general partner.

On December 16, 2025, the Reporting Person gifted 15,988 shares of Class A common stock of OneWater Marine Inc. to a limited partnership of which the Reporting Person is the sole limited partner and the Reporting Person and his spouse are the sole stockholders of the general partner.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan that were previously subject to performance-based criteria. The award vests in three installments on October 1, 2025, October 1, 2026 and October 1, 2027, subject to continued employment through the applicable vesting date.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan that were previously subject to performance-based criteria. The award vests in three installments on October 1, 2025, October 1, 2026 and October 1, 2027, subject to continued employment through the applicable vesting date.

On December 16, 2025, the Reporting Person gifted 15,988 shares of Class A common stock of OneWater Marine Inc. to the Austin Singleton Irrevocable Trust, Dated December 30, 2015, a family trust.

Represents shares withheld to cover tax withholding obligations in connection with the vesting of the restricted stock units reported on this form.

On December 16, 2025, the Reporting Person gifted 15,988 shares of Class A common stock of OneWater Marine Inc. to the Austin Singleton Irrevocable Trust, Dated December 30, 2015, a family trust.

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.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of OneWater Marine Inc. through such vesting date.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests in three installments on October 1, 2026, October 1, 2027 and October 1, 2028, subject to continued employment through the applicable vesting date.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of OneWater Marine Inc. through such vesting date.

Represents shares withheld to cover tax withholding obligations in connection with the vesting of previously reported restricted stock units.

On October 1, 2025, the Reporting Person gifted 36,988 shares of Class A common stock of OneWater Marine Inc. to the Austin Singleton Irrevocable Trust, Dated December 30, 2015, a family trust.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of OneWater Marine Inc. through such vesting date.

On October 1, 2025, the Reporting Person gifted 36,988 shares of Class A common stock of OneWater Marine Inc. to the Austin Singleton Irrevocable Trust, Dated December 30, 2015, a family trust.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of the Issuer through such vesting date.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of OneWater Marine Inc. through such vesting date.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of OneWater Marine Inc. through such vesting date.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests in three installments on October 1, 2026, October 1, 2027 and October 1, 2028, subject to continued employment through the applicable vesting date.

Represents shares withheld to cover tax withholding obligations in connection with the vesting of previously reported restricted stock units.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests in three installments on October 1, 2026, October 1, 2027 and October 1, 2028, subject to continued employment through the applicable vesting date.

Represents shares withheld to cover tax withholding obligations in connection with the vesting of previously reported restricted stock units.

On October 1, 2025, the Reporting Person gifted 27,465 shares of Class A common stock of OneWater Marine Inc. to a limited partnership of which the Reporting Person is the sole limited partner and the Reporting Person and his spouse are the sole stockholders of the general partner.

Award of restricted stock units pursuant to the OneWater Marine Inc. 2020 Omnibus Incentive Plan. The award vests on October 1, 2026, subject to the recipient's continued service as a director of OneWater Marine Inc. through such vesting date.

On October 1, 2025, the Reporting Person gifted 27,465 shares of Class A common stock of OneWater Marine Inc. to a limited partnership of which the Reporting Person is the sole limited partner and the Reporting Person and his spouse are the sole stockholders of the general partner.

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 $15.31 to $15.40, 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.

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 $17.25 to $17.55, 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.

The Reporting Person disclaims beneficial ownership of the shares except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.