NP · Neptune Insurance Holdings Inc.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.87 to $32.12, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.74 to $31.45, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The reported securities are held directly by BSIV Hold 101, LP ("BSIV 101"). BSIV 101 is managed by BSIV Hold 101 GP, LLC, its general partner, which is managed by Bregal Sagemount IV General Partner Jersey Limited, its sole member, which is managed by a board of directors and is ultimately 100% owned by Gene Yoon. Bregal Sagemount Management LP, which is majority owned by Gene Yoon, is the investment advisor to BSIV 101.

Each of the reporting persons disclaims beneficial ownership of the reported securities, except to the extent of such reporting person's pecuniary interest therein, if any. The filing of this statement shall not be deemed an admission by any reporting person of beneficial ownership of the reported securities.

After giving effect to the sale reported in this statement, the shares of Class A Common Stock are directly held as follows: 12,685,340 by FTV VII, L.P. ("FTV VII"), 878,801 by FTV-NE Aggregator, LLC ("FTV-NE Aggregator") and 878,800 by Growth VII-Centre, L.P. ("Growth VII-Centre").

FTV-NE Aggregator is managed by FTV VII, its sole member, which is managed by FTV Management VII, L.P. ("FTV Management"), its general partner. Growth VII-Centre is managed by FTV Management, its general partner.

Each of the reporting persons disclaims beneficial ownership of the reported securities, except to the extent of such reporting person's pecuniary interest therein, if any. The filing of this statement shall not be deemed an admission by any reporting person of beneficial ownership of the reported securities.

These shares were sold pursuant to the underwriters' exercise of their over-allotment option in connection with the Offering.

After giving effect to the sales reported in this statement, the shares of Class A Common Stock are directly held as follows: 14,325,878 by FTV VII, L.P. ("FTV VII"), 992,452 by FTV-NE Aggregator, LLC ("FTV-NE Aggregator") and 992,451 by Growth VII-Centre, L.P. ("Growth VII-Centre").

FTV-NE Aggregator is managed by FTV VII, its sole member, which is managed by FTV Management VII, L.P. ("FTV Management"), its general partner. Growth VII-Centre is managed by FTV Management, its general partner.

Each of the reporting persons disclaims beneficial ownership of the reported securities, except to the extent of such reporting person's pecuniary interest therein, if any. The filing of this statement shall not be deemed an admission by any reporting person of beneficial ownership of the reported securities.

These shares were sold pursuant to the underwriters' exercise of their over-allotment option in connection with the Offering.

The reported securities are held directly by BSIV Hold 101, LP ("BSIV 101"). BSIV 101 is managed by BSIV Hold 101 GP, LLC, its general partner, which is managed by Bregal Sagemount IV General Partner Jersey Limited, its sole member, which is managed by a board of directors and is ultimately 100% owned by Gene Yoon. Bregal Sagemount Management LP, which is majority owned by Gene Yoon, is the investment advisor to BSIV 101.

Each of the reporting persons disclaims beneficial ownership of the reported securities, except to the extent of such reporting person's pecuniary interest therein, if any. The filing of this statement shall not be deemed an admission by any reporting person of beneficial ownership of the reported securities.

These shares were sold in connection with the public offering of the Issuer's Class A Common Stock pursuant to the prospectus dated May 13, 2026 (the "Offering").

After giving effect to the sales reported in this statement, the shares of Class A Common Stock are directly held as follows: 14,325,878 by FTV VII, L.P. ("FTV VII"), 992,452 by FTV-NE Aggregator, LLC ("FTV-NE Aggregator") and 992,451 by Growth VII-Centre, L.P. ("Growth VII-Centre").

FTV-NE Aggregator is managed by FTV VII, its sole member, which is managed by FTV Management VII, L.P. ("FTV Management"), its general partner. Growth VII-Centre is managed by FTV Management, its general partner.

Each of the reporting persons disclaims beneficial ownership of the reported securities, except to the extent of such reporting person's pecuniary interest therein, if any. The filing of this statement shall not be deemed an admission by any reporting person of beneficial ownership of the reported securities.

These shares were sold in connection with the public offering of the Issuer's Class A Common Stock pursuant to the prospectus dated May 13, 2026 (the "Offering").

The reported securities are held directly by BSIV Hold 101, LP ("BSIV 101"). BSIV 101 is managed by BSIV Hold 101 GP, LLC, its general partner, which is managed by Bregal Sagemount IV General Partner Jersey Limited, its sole member, which is managed by a board of directors and is ultimately 100% owned by Gene Yoon. Bregal Sagemount Management LP, which is majority owned by Gene Yoon, is the investment advisor to BSIV 101.

Each of the reporting persons disclaims beneficial ownership of the reported securities, except to the extent of such reporting person's pecuniary interest therein, if any. The filing of this statement shall not be deemed an admission by any reporting person of beneficial ownership of the reported securities.

The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $21.35 to $21.67, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 set forth in this footnote.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO. Each share of Class A Common Stock received upon the exercise of the stock option may be exchanged by the Reporting Person into one share of the Issuer's Class B Common Stock.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The Reporting Person is the trustee of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

Represents shares of Class A Common Stock underlying an award of time-based restricted stock units ("RSUs"). The RSUs will vest in equal annual installments over three years, beginning on September 30, 2026, subject to the continuous service of the Reporting Person through each vesting date.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The Reporting Person is the trustee of the trust.

Each outstanding share of Class B Common Stock is convertible into one share of the Issuer's Class A common stock at any time, (i) at the option of the Reporting Person, (ii) automatically upon any transfer, whether or not for value (except for certain permitted transfers), or (iii) upon the occurrence of certain events or conditions, as described further in the Issuer's Second Amended and Restated Certificate of Incorporation.

Shares of Class A Common Stock were exchanged with the Issuer for shares of Class B Common Stock on a one-for-one basis pursuant to the Exchange Agreement between the Reporting Person and the Issuer.

The Reporting Person is the trustee of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

The Reporting Person and Steve Wynne are the trustees of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO. Each share of Class A Common Stock received upon the exercise of the stock option may be exchanged by the Reporting Person into one share of the Issuer's Class B Common Stock.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

Shares of Class A Common Stock were exchanged with the Issuer for shares of Class B Common Stock on a one-for-one basis pursuant to the Exchange Agreement between the Reporting Person and the Issuer.

The Reporting Person is the trustee of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

Jonathan W. Meyer and David J. Rectenwald are Co-Trustees of the trust and may be replaced at the discretion of the Reporting Person. By virtue of his relationship with the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.

Represents shares purchased through a directed share program in connection with the the Issuer's initial public offering of Class A Common Stock. These shares were purchased at the public offering price of $20 per share.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO. Each share of Class A Common Stock received upon the exercise of the stock option may be exchanged by the Reporting Person into one share of the Issuer's Class B Common Stock.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

Represents shares of Class A Common Stock underlying an award of time-based restricted stock units ("RSUs"). The RSUs will vest in equal annual installments over three years, beginning on September 30, 2026, subject to the continuous service of the Reporting Person through each vesting date. Each share of Class A Common Stock received upon the settlement of the RSU may be exchanged by the Reporting Person into one share of the Issuer's Class B Common Stock.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

The Reporting Person and Steve Wynne are the trustees of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

The Reporting Person and Alexis Carlon are the trustees of the trust.

Represents shares purchased through a directed share program in connection with the the Issuer's initial public offering of Class A Common Stock. These shares were purchased at the public offering price of $20 per share.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO.

Represents shares purchased through a directed share program in connection with the the Issuer's initial public offering of Class A Common Stock. These shares were purchased at the public offering price of $20 per share.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The Reporting Person is the trustee of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

Jonathan W. Meyer and David J. Rectenwald are Co-Trustees of the trust and may be replaced at the discretion of the Reporting Person. By virtue of his relationship with the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.

Each outstanding share of Class B Common Stock is convertible into one share of the Issuer's Class A common stock at any time, (i) at the option of the Reporting Person, (ii) automatically upon any transfer, whether or not for value (except for certain permitted transfers), or (iii) upon the occurrence of certain events or conditions, as described further in the Issuer's Second Amended and Restated Certificate of Incorporation.

Shares of Class A Common Stock were exchanged with the Issuer for shares of Class B Common Stock on a one-for-one basis pursuant to the Exchange Agreement between the Reporting Person and the Issuer.

Jonathan W. Meyer and David J. Rectenwald are Co-Trustees of the trust and may be replaced at the discretion of the Reporting Person. By virtue of his relationship with the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.

Represents shares of Class A Common Stock underlying an award of time-based restricted stock units ("RSUs"). The RSUs will vest in equal annual installments over three years, beginning on September 30, 2026, subject to the continuous service of the Reporting Person through each vesting date.

Represents shares of Class A Common Stock underlying an award of time-based restricted stock units ("RSUs"). The RSUs will vest in equal annual installments over three years, beginning on September 30, 2026, subject to the continuous service of the Reporting Person through each vesting date.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The Reporting Person is the trustee of the trust.

Represents shares of Class A Common Stock underlying an award of time-based restricted stock units ("RSUs"). The RSUs will vest in equal annual installments over three years, beginning on September 30, 2026, subject to the continuous service of the Reporting Person through each vesting date.

Shares of Class A Common Stock were exchanged with the Issuer for shares of Class B Common Stock on a one-for-one basis pursuant to the Exchange Agreement between the Reporting Person and the Issuer.

Jonathan W. Meyer and David J. Rectenwald are Co-Trustees of the trust and may be replaced at the discretion of the Reporting Person. By virtue of his relationship with the trust, the Reporting Person is deemed to have an indirect beneficial interest in the shares held by the trust. The Reporting Person disclaims beneficial ownership of the shares held by the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO.

Each outstanding share of Class B Common Stock is convertible into one share of the Issuer's Class A common stock at any time, (i) at the option of the Reporting Person, (ii) automatically upon any transfer, whether or not for value (except for certain permitted transfers), or (iii) upon the occurrence of certain events or conditions, as described further in the Issuer's Second Amended and Restated Certificate of Incorporation.

Shares of Class A Common Stock were exchanged with the Issuer for shares of Class B Common Stock on a one-for-one basis pursuant to the Exchange Agreement between the Reporting Person and the Issuer.

The Reporting Person is the trustee of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

The Reporting Person and Alexis Carlon are the trustees of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

Shares of Class A Common Stock were exchanged with the Issuer for shares of Class B Common Stock on a one-for-one basis pursuant to the Exchange Agreement between the Reporting Person and the Issuer.

The Reporting Person is the trustee of the trust.

Pursuant to a reclassification exempt under Rule 16b-7, shares of Common Stock were automatically reclassified as shares of Class A Common Stock on a one-for-one basis upon the filing of the Second Amended and Restated Certificate of Incorporation of the Issuer immediately prior to the closing of the Issuer's initial public offering ("IPO").

The stock option fully vested upon the closing of (and became exercisable in connection with) the IPO. Each share of Class A Common Stock received upon the exercise of the stock option may be exchanged by the Reporting Person into one share of the Issuer's Class B Common Stock.