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

Date of Report (Date of earliest event reported): July 27, 2026

SideChannel, Inc.

(Exact name of registrant as specified in its charter)

Delaware 000-28745 86-0837077

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

146 Main Street, Suite 405, Worcester, MA 01608

(Address of principal executive offices) (Zip Code)

(508) 925-0114

(Registrant’s telephone number, including area code)

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 Symbol(s) Name of each exchange on which registered
N/A N/A N/A

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If 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 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

On July 27, 2026, SideChannel, Inc. (the “Company”) filed a Certificate of Withdrawal of Certificate of Designation of Series A Preferred Stock (the “Certificate of Withdrawal”) with the Secretary of State of the State of Delaware. The Company previously filed a Certificate of Designation providing for the Company’s Series A preferred stock. As of July 27, 2026, no shares of Series A preferred stock were outstanding. The Certificate of Withdrawal had the effect of eliminating the Series A preferred stock. The previously designated shares of Series A preferred stock have been returned as authorized preferred stock available for designation and issuance as determined by the Company’s Board of Directors.

The foregoing description of the Certificate of Withdrawal does not purport to be complete and is qualified in its entirety by reference to the full text of the Certificate of Withdrawal, which is filed as Exhibit 3.1 to this Current Report on Form 8-K and incorporated by reference herein.

Item 9.01 Financial Statements and Exhibits

(a) Exhibits.

Exhibit No. Description
3.1 Certificate of Withdrawal of Certificate of Designation of Series A Preferred Stock.
104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

SideChannel, Inc.
Date: August 3, 2026 By: /s/ Brian Haugli
Name: Brian Haugli
Title: Chief Executive Officer