James Steiner - 30 Sep 2026 Form 4 Insider Report for Neptune Insurance Holdings Inc. (NP)

Reporting relationship: Chief Financial Officer, Director
Issuer ticker: NP
Reported as of: 30 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Oct 2026, 16:49:35 UTC
Prior SEC filing: 16 Sep 2026
Source filing: View source filing
Reporting owner signature: /s/ James Steiner

Filing notes and source

Key filing fact

James Steiner filed Form 4 for Neptune Insurance Holdings Inc. (NP) on 02 Oct 2026.

Key facts

This page summarizes James Steiner's Form 4 filing for Neptune Insurance Holdings Inc. (NP).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 02 Oct 2026, 16:49.

Change

Previous filing in this sequence was filed on 16 Sep 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001629168 Primary reporting owner

Steiner James

Relationship: Chief Financial Officer, Director
Address: C/O NEPTUNE INSURANCE HOLDINGS INC., 400 6TH ST S STE 2, SAINT PETERSBURG
Signature: /s/ James Steiner
Signature date: 02 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NP transaction

Class A Common Stock

Tax liability

Transaction value
Shares: -64,777
Change %: -12%
Price: $27.35^*
Shares after: 470,888
Date: 30 Sep 2026
Ownership: Direct
Footnotes: F1, F2

NP transaction

Class A Common Stock

Award

Transaction value
Shares: +75,288
Change %: +16%
Price: $0.000000^*
Shares after: 546,176
Date: 30 Sep 2026
Ownership: Direct
Footnotes: F2, F3, F4

NP holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 3,749,050
Date: 30 Sep 2026
Ownership: By Self as Trustee of the Living Trust of James Edward Steiner dated July 7, 2016

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NP holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 95,500
Date: 30 Sep 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 95,500
Exercise price: $19.00
Footnotes: F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Represents shares of Class A Common Stock withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of restricted stock units on September 30, 2026. No shares were sold by the Reporting Person. The price reported in Column 4 is the closing price of the Class A Common Stock on the New York Stock Exchange on September 30, 2026.

Footnote F2

Includes 357,110 shares of Class A Common Stock underlying an award of time-based restricted stock units, as amended, which remain held directly by the Reporting Person. The restricted stock units vested as to 178,555 shares on September 30, 2026 and vest as to the remaining 357,110 shares in eight quarterly installments of 44,638 or 44,639 shares each on the last day of each calendar quarter thereafter through September 30, 2028, in each case subject to the continuous service of the Reporting Person through the applicable vesting date.

Footnote F3

Represents shares of Class A Common Stock underlying an award of time-based restricted stock units granted on September 30, 2026. The restricted stock units vest in four quarterly installments of 18,822 shares each on the last day of each calendar quarter from December 31, 2028 through September 30, 2029, in each case subject to the continuous service of the Reporting Person through the applicable vesting date.

Footnote F4

Includes 75,288 shares of Class A Common Stock underlying the award of time-based restricted stock units reported on this Form 4.

Footnote F5

The stock option fully vested upon the closing of (and became exercisable in connection with) the Issuer's initial public offering on October 2, 2025.

Footnote F6

The Reporting Person's Form 4 filed on October 3, 2025 inadvertently reported 95,000 stock options beneficially owned following the reported transactions in Column 9 of Table II. The correct amount was 95,500, as reported in Column 5 of Table II of that Form 4.