Highview Sponsor Co., LLC - 11 Aug 2025 Form 3 Insider Report for Highview Merger Corp.

Role: Director, Director by Deputization, 10%+ Owner
Signature: /s/ Daniel Nussen, as Attorney-in-Fact for Highview Sponsor Co., LLC
Issuer symbol: HVMC, HVMCU, HVMCW on Nasdaq
Transactions as of: 11 Aug 2025
Net transactions value: $0
Form type: 3
Filing time: 11 Aug 2025, 18:57:45 UTC
SEC: View on sec.gov

Reporting Owners (2)

Name	Relationship	Address	Signature	Signature date	CIK
Highview Sponsor Co., LLC	Director, Director by Deputization, 10%+ Owner	C/O HIGHVIEW MERGER CORP., 1615 SOUTH CONGRESS AVE., SUITE 103, DELRAY BEACH	/s/ Daniel Nussen, as Attorney-in-Fact for Highview Sponsor Co., LLC	11 Aug 2025	0002078602
Boris David	CEO and CFO, Director, 10%+ Owner	C/O HIGHVIEW MERGER CORP., 1615 SOUTH CONGRESS AVENUE, SUITE 103, DELRAY BEACH	/s/ Daniel Nussen, as Attorney-in-Fact for Davis Boris	11 Aug 2025	0001522248

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	HVMC	Class B Ordinary Shares							11 Aug 2025	Class A Ordinary Shares	5,750,000		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement filed on Form S-1 (File No. 333-288914) (the "Registration Statement") and have no expiration date. The Class B ordinary shares beneficially owned by the Reporting Person include up to 750,000 Class B ordinary shares subject to forfeiture to the Issuer depending on the extent to which the underwriters' over-allotment option is exercised in connection with the Issuer's initial public offering of units, as described in the Registration Statement.
F2	Highview Sponsor Co., LLC (the "Reporting Person") is the record holder of the securities reported herein. David Boris is the sole managing member of the Reporting Person and has voting and investment discretion with respect to the ordinary shares held of record by the Reporting Person. David Boris disclaims any beneficial ownership of the securities held by the Reporting Person other than to the extent of any pecuniary interest that he may have therein, directly or indirectly.

Content

The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement filed on Form S-1 (File No. 333-288914) (the "Registration Statement") and have no expiration date. The Class B ordinary shares beneficially owned by the Reporting Person include up to 750,000 Class B ordinary shares subject to forfeiture to the Issuer depending on the extent to which the underwriters' over-allotment option is exercised in connection with the Issuer's initial public offering of units, as described in the Registration Statement.

Highview Sponsor Co., LLC (the "Reporting Person") is the record holder of the securities reported herein. David Boris is the sole managing member of the Reporting Person and has voting and investment discretion with respect to the ordinary shares held of record by the Reporting Person. David Boris disclaims any beneficial ownership of the securities held by the Reporting Person other than to the extent of any pecuniary interest that he may have therein, directly or indirectly.

Remarks:

See Exhibit 99.1 - Joint Filer Information, which is incorporated herein by reference and describes in further detail the relationships of the Reporting Persons to the Issuer. See Exhibits 24.1 and 24.2 - Powers of Attorney.