FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: December 31, 2014
Estimated average burden
hours per response: 0.5
  
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
BSIV Hold 101, LP

(Last) (First) (Middle)
200 PARK AVENUE, 45TH FLOOR

(Street)
NEW YORK NY 10166

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Neptune Insurance Holdings Inc. [ NP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
07/29/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock 07/29/2026   S   1,632,160 D $ 33.22 12,620,558 D (1) (2)  
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. 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.
2. 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.
BSIV Hold 101, LP, By: BSIV Hold 101 GP, LLC, its GP, By: Bregal Sagemount IV General Partner Jersey Limited, its Sole Member, By: /s/ Colin James Dow, Name: Colin James Dow, Title: Director; /s/ Paul Andrew Bradshaw, Name: Paul Andrew Bradshaw, Director 07/30/2026
** Signature of Reporting Person Date
BSIV Hold 101 GP, LLC, By: Bregal Sagemount IV General Partner Jersey Limited, its Sole Member, By: /s/ Colin James Dow, Name: Colin James Dow, Title: Director, /s/ Paul Andrew Bradshaw, Name: Paul Andrew Bradshaw, Title: Director 07/30/2026
** Signature of Reporting Person Date
Bregal Sagemount IV General Partner Jersey Limited, By: /s/ Colin James Dow, Name: Colin James Dow, Title: Director, /s/ Paul Andrew Bradshaw, Name: Paul Andrew Bradshaw, Title: Director 07/30/2026
** Signature of Reporting Person Date
Bregal Sagemount Management LP, By: /s/ Gene Yoon, Name: Gene Yoon, Title: Managing Partner 07/30/2026
** Signature of Reporting Person Date
Gene Yoon, By: /s/ Gene Yoon, Name: Gene Yoon 07/30/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.