Form 8-K

8-K — IIOT-OXYS, Inc.

Accession: 0001683168-26-003082

Filed: 2026-04-20

Period: 2026-04-16

CIK: 0001290658

SIC: 7372 (SERVICES-PREPACKAGED SOFTWARE)

Item: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Item: Financial Statements and Exhibits

Documents

8-K — iiot_8k.htm (Primary)

EX-3.1 — AMENDMENT NO. 1 TO THE CERTIFICATE OF DESIGNATION (iiot_ex0301.htm)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

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

Exchange Act of 1934

Date of Report (Date of earliest event reported):

April 16, 2026

IIOT-OXYS,

Inc.

(Exact name of registrant as specified in its charter)

Nevada

000-50773

56-2415252

(State or Other Jurisdiction

(Commission File

(I.R.S. Employer

of Incorporation)

Number)

Identification Number)

705 Cambridge Street

Cambridge, MA 02141

(Address of principal executive offices, including zip code)

(401) 307-3092

(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

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 ☐

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.

Amendment No. 1 to Certificate of Designation

for Series D Convertible Preferred Stock

On April 16, 2026, the Board of Directors of IIOT-OXYS,

Inc., a Nevada corporation (the “Company”), adopted resolutions approving Amendment No. 1 (the “Amendment”)

to the Certificate of Designation of Preferences, Rights and Limitations of the Series D Convertible Preferred Stock of the Company (the

"Original Certificate of Designations"), filed on March 17, 2025. The sole Holder of the Series D Convertible Preferred

Stock (the "Series D Preferred Stock") also approved the Amendment as of April 16, 2026.

The Amendment revises Section 3 ("Designation,

Amount and Par Value") of the Original Certificate of Designations in its entirety. As amended, the number of shares of Series D

Convertible Preferred Stock designated is increased from 210 to up to five hundred (500) shares (which shall not be subject to increase

without the written consent of all of the Holders of the Series D Preferred Stock). Each share of Series D Preferred Stock continues to

have a par value of $0.001 per share and a stated value of $1,200, subject to increase as set forth in Section 3 and/or elsewhere in the

Certificate of Designation, as amended.

The foregoing description of the Amendment is

not complete and is qualified in its entirety by reference to the full text of the Amendment. A copy of the Amendment is filed as an exhibit

to this Form 8-K and incorporated by reference herein.

Item 9.01

Financial Statements and Exhibits.

Exhibit No.

Description

3.1

Amendment No. 1 to the Certificate of Designation of Preferences, Rights and Limitations of Series D Convertible Preferred Stock

104

Cover Page Interactive Data File (formatted in Inline XBRL)

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.

IIOT-OXYS, Inc.

Date: April 20, 2026

By:

/s/ Clifford L. Emmons

Clifford L. Emmons, Chief Executive Officer

EX-3.1 — AMENDMENT NO. 1 TO THE CERTIFICATE OF DESIGNATION

EX-3.1

Filename: iiot_ex0301.htm · Sequence: 2

Exhibit 3.1

AMENDMENT NO. 1 TO THE

CERTIFICATE OF DESIGNATION

OF PREFERENCES, RIGHTS AND LIMITATIONS

SERIES D CONVERTIBLE PREFERRED

STOCK OF

IIOT-OXYS, INC.

Pursuant to Sections 78.1955(3) and 78.1955(4)

of the Nevada Revised Statutes

The undersigned, Clifford L. Emmons, hereby certifies that:

He is the duly elected and acting Chief Executive Officer of IIOT-OXYS, Inc., a Nevada corporation (the “Corporation”).

II.

On March 17, 2025, the Corporation filed the original Certificate of Designation of Preferences, Rights and Limitations of the

Series D Convertible Preferred Stock of the Corporation (the “Original Certificate of Designations”) for the Series

D Convertible Preferred Stock (the “Series D Preferred Stock”).

III.

The following is a true and correct copy of resolutions duly adopted by the Board of Directors of the Corporation (the “Board

of Directors”) on April 16, 2026 pursuant to the Articles of Incorporation, as amended, and in accordance with the provisions

of the Nevada Revised Statutes. The sole Holder of the Series D Preferred Stock has also approved this Amendment as of April 16, 2026.

RESOLUTIONS

WHEREAS, pursuant to the Corporation’s

Articles of Incorporation (as amended), the Corporation’s Board of Directors (the “Board”) is authorized to issue,

by resolution and without any action by the Corporation’s shareholders (except as otherwise required by the terms of any outstanding

series of preferred stock), up to Ten Million (10,000,000) shares of preferred stock, par value $0.001 per share (the “Preferred

Stock”), in one or more series, and the Board may establish the designations, dividend rights, dividend rate, conversion rights,

voting rights, terms of redemption, liquidation preferences, sinking fund terms and all other preferences and rights of any series of

Preferred Stock;

WHEREAS, 210 shares of Series D Preferred Stock are currently

issued and outstanding; and

WHEREAS, it is the desire of

the Board, pursuant to its authority as aforesaid, and with the written consent of the sole Holder of the Series D Preferred Stock, to

amend the Original Certificate of Designations as set forth herein:

NOW, THEREFORE, BE IT RESOLVED, that

the Board hereby amends the Original Certificate of Designations as follows:

The definition of "Designation, Amount and Par Value" in Section 3 of the Original Certificate of Designations is revised

in its entirety to read as follows:1

"Designation,

Amount and Par Value" The series of preferred stock shall be designated as Series D Convertible Preferred Stock and the number

of shares so designated shall be up to five hundred (500) (which shall not be subject to increase without the written consent of all of

the Holders of the Preferred Stock). Each share of Preferred Stock shall have a par value of $0.001 per share and a stated value of $1,200,

subject to increase set forth in Section 3 and/or elsewhere in this Certificate of Designation.

[Signature Page

Follows]

WITNESS WHEREOF, IIOT-OXYS, Inc. has caused this Amendment to be signed by Clifford L. Emmons, its Chief Executive Officer, this 16th

day of April, 2026.

IIOT-OXYS, INC.

By:

/s/ Clifford L. Emmons

Name:

Clifford L. Emmons

Title:

Chief Executive Officer

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