As filed with the Securities and Exchange Commission on July 9, 2026

Registration No. 333-__________

United States

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM S-8

REGISTRATION STATEMENT

Under the Securities Act of 1933

AIM IMMUNOTECH INC.

(Exact name of registrant as specified in its charter)

2117 SW Highway 484, Ocala, FL 34473

(Address of Principal Executive Offices) (Zip Code)

AIM IMMUNOTECH INC. AMENDED AND RESTATED

2018 EQUITY INCENTIVE PLAN*

(full title of the plan)

* See Explanatory Note on Following Page.

Thomas K. Equels

Chief Executive Officer

AIM ImmunoTech Inc.

2117 SW Highway 484

Ocala, FL 34473

(352) 448-7797

(Name, Address & Telephone number, including area code, of agent for service)

Copies to:

Faith L. Charles

Thompson Hine LLP

300 Madison Avenue, 27th Floor

New York, New York 10017-6232

Phone: (212) 344-5680

Fax: (212) 344-6101

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

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 pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

EXPLANATORY NOTE

This registration statement on Form S-8 (this “Registration Statement”) registers additional shares of common stock (“Common Stock”) of AIM ImmunoTech Inc. (the “Company”) under the Company’s Amended and Restated 2018 Equity Incentive Plan (the “Plan”). The number of shares of Common Stock available for grant and issuance under the Plan is subject to an annual increase on July 1 of each calendar year, by an amount equal to two percent (2%) of the then outstanding shares of the Company’s Common Stock (the “2018 Plan Evergreen Provision”). On July 1, 2026, the number of shares of the Company’s Common Stock available for grant and issuance under the Plan increased by 580,661 shares pursuant to the 2018 Plan Evergreen Provision. This Registration Statement registers the additional 580,661 shares available for grant and issuance under the 2018 Plan pursuant to the 2018 Plan Evergreen Provision.

The Company previously filed: (i) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-227543) filed with the U.S. Securities and Exchange Commission (the “SEC”) on September 26, 2018, as amended by (ii) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-240315) filed with the SEC on August 3, 2020, as amended by (iii) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-257614) filed with SEC on July 1, 2021, as amended by (iv) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-265989) filed with SEC on July 1, 2022, as amended by (v) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-273104) filed with SEC on July 3, 2023, as amended by (vi) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-280646) filed with SEC on July 1, 2024, as amended by (vii) a registration statement on Form S-8 registering Common Stock under the Plan (File No. 333-288680) filed with the SEC on July 15, 2025 (collectively, the “Prior Registration Statements”).

Pursuant to Instruction E of Form S-8, the contents of the Prior Registration Statements are hereby incorporated by reference herein (except to the extent supplemented, amended, or superseded by the information set forth herein), and the information otherwise required by Form S-8 is omitted.

PART I

INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

The information required by Part I of this registration statement on Form S-8 (this “Registration Statement”) is omitted from this filing in accordance with the provisions of Rule 428 under the Securities Act of 1933, as amended, and the introductory note to Part I of the registration statement on Form S-8. The documents containing the information specified in Part I will be delivered to the participants in the AIM ImmunoTech Inc. (the “Company”) Amended and Restated 2018 Equity Incentive Plan covered by this Registration Statement as required by Rule 428(b)(1).

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Documents by Reference.

The U.S. Securities and Exchange Commission (the “SEC”) allows us to “incorporate by reference” the information we file with them, which means that we can disclose important information to you by referring you to those documents. We hereby incorporate by reference into this Registration Statement the following documents previously filed with the SEC:

All documents filed by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended, on or after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement that indicates that all securities offered have been sold or that deregisters all securities then remaining unsold shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing of such documents; provided, however, that documents or information deemed to have been furnished and not filed in accordance with the rules of the SEC shall not be deemed incorporated by reference into this Registration Statement. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.

Item 8. Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant, AIM ImmunoTech Inc., certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Ocala, State of Florida, on July 9, 2026.

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Thomas K. Equels acting alone, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for such person in his name, place and stead, in any and all capacities, in connection with the Registrant’s Registration Statement on Form S-8 under the Securities Act of 1933, including, without limiting the generality of the foregoing, to sign the Registration Statement in the name and on behalf of the Registrant or on behalf of the undersigned as a director or officer of the Registrant, and any and all amendments or supplements to the Registration Statement, including any and all stickers and post-effective amendments to the Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission and any applicable securities exchange or securities self-regulatory body, granting unto said attorney-in-fact and agents, each acting alone, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or their substitutes or substitute, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement on Form S-8 has been signed by the following persons in the capacities indicated on the dates indicated.

ATTACHMENTS / EXHIBITS

EX-5.1

EX-23.1

EX-FILING FEES

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IDEA: FilingSummary.xml

IDEA: MetaLinks.json

IDEA: ex107_htm.xml