Form 8-K

8-K — K2 Capital Acquisition Corp

Accession: 0001213900-26-094428

Filed: 2026-08-27

Period: 2026-08-26

CIK: 0002086524

SIC: 6770 (BLANK CHECKS)

Item: Entry into a Material Definitive Agreement

Item: Financial Statements and Exhibits

Documents

8-K — ea0303576-8k_k2cap.htm (Primary)

EX-10.1 — AMENDMENT NO. 1 TO INSIDER LETTER (ea030357601ex10-1.htm)

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8-K — CURRENT REPORT

8-K (Primary)

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UNITED

STATES

SECURITIES

AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form

8-K

Current

Report

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

August

26, 2026

Date of Report (Date of earliest event reported)

K2 CAPITAL ACQUISITION CORPORATION

(Exact

name of Registrant as specified in its charter)

Cayman Islands

001-43086

N/A

(State or other jurisdiction

of incorporation)

(Commission File Number)

(I.R.S.

Employer

Identification

Number)

244 Fifth Avenue

Suite #1833

New York, NY

10001

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s

telephone number, including area code: +1 (236) 521-6500

N/A

(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:

☐

Written communications

pursuant to Rule 425 under the Securities Act

☐

Soliciting material pursuant

to Rule 14a-12 under the Exchange Act

☐

Pre-commencement communications

pursuant to Rule 14d-2(b) under the Exchange Act

☐

Pre-commencement communications

pursuant to Rule 13e-4(c) under the Exchange Act

Securities

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

Title

of each class

Trading

Symbol(s)

Name

of each exchange on which registered

Units, each consisting of one Class A ordinary share, par value $0.0001 per share, and one right to receive one-fifth of one Class A ordinary share

KTWOU

The Nasdaq Stock Market

LLC

Class A ordinary shares, par value $0.0001 per share

KTWO

The Nasdaq Stock Market

LLC

Rights, included as part of the units

KTWOR

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 (17 CFR §230.405)

or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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

1.01. Entry into a Material Definitive Agreement.

August 26, 2026, K2 Capital Acquisition Corporation (the “Registrant”), K2 Capital Sponsor LLC (the “Sponsor”)

and the various insiders party thereto entered into Amendment No. 1 to the Letter Agreement dated January 28, 2026. The purpose of Amendment

No. 1 was to (A) amend the lock-up provisions applicable to the founders shares after consummation of an initial business combination

(the “Business Combination”) to provide that such shares will become transferable upon the earlier of (i) six months following

the initial business combination or (ii) the closing price of the Class A ordinary shares equals or exceeds $12.00 per share (as adjusted

for stock splits, stock dividends, reorganizations, recapitalizations and other similar transactions) for any 20 trading days within

any 30-trading day period commencing at least 150 days after completion of the Business Combination and (B) amend the lock-up provisions

applicable to the private placement units after consummation of a Business Combination from 180 days to 30 days.

copy of Amendment No. 1 is filed as Exhibit 10.1 hereto and is incorporated herein by reference.

Item

9.01. Financial Statements and Exhibits.

(d)

Exhibits

Exhibit No.

Description

10.1

Amendment No. 1 to Insider Letter

104

Cover page interactive data file

SIGNATURES

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: August 27, 2026

K2 CAPITAL ACQUISITION CORPORATION

By:

/s/ Karan Thakur

Name:

Karan Thakur

Title:

Chief Executive Officer

EX-10.1 — AMENDMENT NO. 1 TO INSIDER LETTER

EX-10.1

Filename: ea030357601ex10-1.htm · Sequence: 2

Exhibit 10.1

AMENDMENT TO INSIDER LETTER

THIS AMENDMENT NO. 1 to the Letter Agreement dated

January 28, 2026 (the “Insider Letter”) by and between K2 Capital Acquisition Corporation (the “Company”), K2

Capital Sponsor LLC (the “Sponsor”) and the insiders signatory to the Insider Letter (the “Insiders”) is dated

as of August 26, 2026 (“Amendment No. 1”). The purpose of Amendment No. 1 is to amend paragraphs 7(a) and 7(b) of the Insider

Letter to amend the lock-up provisions. Terms not otherwise defined herein are as defined in the Insider Letter.

NOW, THEREFORE, THE PARTIES HERETO AGREE AS FOLLOWS:

1. The first sentence of paragraph 7(a) of the Insider Letter is replaced in its entirety with the following:

“7. (a) The Sponsor and each Insider agree that it,

he or she shall not Transfer (as defined below) any Founder Shares (or Class A Ordinary Shares issuable upon conversion thereof) until

the earlier of: (i) six months after completion of the Business Combination or (ii) the closing price of the Class A Ordinary Shares equals

or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and other similar transactions)

for any 20 trading days within any 30-trading day period commencing at least 150 days after completion of the Business Combination (the

“Lock-up”).”

2. Paragraph 7(b) of the Insider Letter is replaced in its entirety with the following:

“(b) The Sponsor and each Insider agree not to Transfer

any Private Placement Units (including the underlying securities) held by it, he or she until 30 days after the completion of a Business

Combination.”

3. Except as set forth herein, there are no other changes to the Insider Letter.

4. Each party that is a signatory hereto is duly authorized to execute this Amendment No. 1.

IN WITNESS WHEREOF, the undersigned have set their hand as of the date

first above written.

K2 CAPITAL ACQUISITION CORPORATION

By:

/s/ Karan Thakur

Name:

Karan Thakur

Title:

Chief Executive Officer

K2 CAPITAL SPONSOR LLC

By:

/s/ Karan Thakur

Name:

Karan Thakur

Title:

Managing Member

By:

/s/ Karan Thakur

Name:

Karan Thakur

Title:

Chief Executive Officer

By:

/s/ Glenn Worman

Name:

Glenn Worman

Title:

Chief Financial Officer

By:

/s/ Yungkong Bann

Name:

Yungkong Bann

Title:

Director

By:

/s/ Michael E. Fuentes

Name:

Michael E. Fuentes

Title:

Director

By:

/s/ Rajiv Matthew

Name:

Rajiv Matthew

Title:

Director

By:

/s/ John Vonglis

Name:

John Vonglis

Title:

Advisor

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Entity Address, Address Line One

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Entity Address, Address Line Two

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Security Exchange Name

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