Form 8-K

8-K — Nuvve Holding Corp.

Accession: 0001213900-26-068896

Filed: 2026-06-15

Period: 2026-06-15

CIK: 0001836875

SIC: 3690 (MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES)

Item: Submission of Matters to a Vote of Security Holders

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — ea0294868-8k_nuvve.htm (Primary)

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8-K — CURRENT REPORT

8-K (Primary)

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

WASHINGTON,

DC 20549

FORM

8-K

CURRENT

REPORT

PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES

EXCHANGE ACT OF 1934

Date

of Report (Date of earliest event reported): June 15, 2026

NUVVE HOLDING CORP.

(Exact

Name of Registrant as Specified in Charter)

Delaware

001-40296

86-1617000

(State

or Other Jurisdiction

Incorporation)

(Commission

File Number)

(IRS

Employer

Identification

No.)

2488 Historic Decatur Road, Ste 230

San Diego, California

92106

(Address of Principal Executive

Offices)

(Zip Code)

Registrant’s

telephone number, including area code: (619) 456-5161

(Former Name or Former Address,

if Changed Since Last Report)

Check

the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under

any of the following provisions (see General Instruction A.2. below):

☐

Written communications

pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐

Soliciting material pursuant

to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12).

☐

Pre-commencement communications

pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)).

☐

Pre-commencement communications

pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)).

Securities

registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

symbols

Name

of each exchange on which registered

Common Stock, Par Value $0.0001 Per Share

NVVE

The Nasdaq Stock Market

LLC

Indicate

by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405

of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company ☐

an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item

5.07 Submission of Matters to a Vote of Security Holders.

The

information disclosed in Item 8.01 of this Current Report on Form 8-K is incorporated herein by reference.

Item

8.01 Other Events.

June 15, 2026, Nuvve Holding Corp. (the “Company”) convened its special meeting of stockholders (the “Special Meeting”)

to vote upon the proposals set forth in the definitive proxy statement on Schedule 14A filed by the Company with the Securities and Exchange

Commission on May 29, 2026 (the “Proxy Statement”). There were 3,118,235 shares of the Company’s common stock, par

value $0.0001, present or represented by proxy at the Special Meeting, which did not constitute a quorum under the Company’s Amended

and Restated Bylaws. Accordingly, the Company adjourned the Special Meeting to June 23, 2026 at 1 p.m. Eastern Time. The adjournment

provides the Company with additional time to solicit the necessary proxies from its stockholders to achieve a quorum at the special meeting.

The

close of business on April 17, 2026 will remain the record date for determination of the stockholders entitled to vote at the Special

Meeting. Stockholders who have already voted do not need to recast their votes unless they wish to change their votes. Proxies previously

submitted will be voted at the reconvened Special Meeting unless properly revoked. Stockholders who have not already voted or wish to

change their vote are encouraged to do so promptly using the instructions provided in their voting instruction form or proxy card.

The

Company urges all stockholders to vote their shares immediately to ensure their votes count in time for the reconvened special meeting

on June 23, 2026.

Item

9.01. Financial Statements and Exhibits.

(d)

Exhibits.

Exhibit

No.

Description

104

Cover

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SIGNATURE

Pursuant

to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by

the undersigned hereunto duly authorized.

Dated:

June 15, 2026

NUVVE

HOLDING CORP.

By:

/s/

Gregory Poilasne

Chief Executive Officer

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