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Ainos, Inc.
AIMD
Amendment
Ownership

9.13%

Total Shares

491,263

Issuer CIK

1014763

CUSIP

00902F402

Event Date

Oct 5, 2025

Accepted

Oct 9, 2025, 06:08 AM

SEC EDGARView Original Filing
Reporting Persons (1)
NameType% of ClassAggregateSole VotingShared Voting
Ainos Inc.
CO
9.13%491,2633,253,8540
Disclosure Items (7)

Security Title

Common Stock, par value $0.01 per share

Issuer Name

Ainos, Inc.

Issuer Address

8880 RIO SAN DIEGO DRIVE, SAN DIEGO, CA, 92108

Filing Persons

(a-b) This Schedule is being filed by Ainos Inc., a Cayman Islands corporation ("Ainos KY"). The principal business and office address of Ainos KY is P. O. Box 31119 Grand Pavilion, Hibiscus Way, 802 West Bay Road, Grand Cayman, KY1 - 1205 Cayman Islands.

Business Address

Ainos KY is controlled by Taiwan Carbon Nano Technology Corporation, a Taiwanese corporation ("TCNT" and together with the Issuer, the "Parties"). The principal business and office address of TCNT is 10F-2, No. 66, Shengyi 5th Rd., Zhubei City, Hsinchu County 30261, Taiwan (R.O.C.).

Principal Occupation

The principal business of Ainos KY is a holding company of the Issuer's securities. The principal business of TCNT is the development of advanced materials for industrial and medical device applications.

Since the filing of Amendment No. 11, on June 30, 2025, the Issuer effected an one-for-five reverse stock split of its common stock. From June 25, 2025 through October 6, 2025, TCNT sold a total of 62,794 shares of the issuer's common stock. Under the TCNT Voting Agreements, Ainos KY has the sole discretion to determine the vote of TCNT's voting stock of the Issuer. The information requested by this Item 3 is incorporated herein by reference to Item 5 hereof.

Ainos KY acquired the Common stock in the Issuer for investment purposes. TCNT sold the 62,794 shares of the issuer's common stock for general operating purposes. Except as disclosed herein, each of the parties has no plans which relate to or would result in an event described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. However, each of the Parties may, from time to time, engage in discussions, whether initiated by the Parties or another party, concerning proposals for transactions or other arrangements that may relate to or, if consummated, result in an event described in Item 4 of Schedule 13D. Each of the Parties may review and evaluate their respective investments in the Issuer at any time, whether in light of the discussions described in the immediately preceding sentence or otherwise, which may give rise to plans or proposals that, if consummated, would result in one or more of the events described in Item 4 of Schedule 13D. Any such discussion or actions may consider various factors, including, without limitation, the Issuer's business prospects and other developments concerning the Issuer, alternative investment opportunities, general economic conditions, financial and stock market conditions and any other facts and circumstances that may become known to the Parties regarding or related to the matters described in this Statement.

Percentage of Class

Items 5 of the Statement are hereby amended and restated as follows: (a) - (b) The information requested by these paragraphs are incorporated herein by reference to the cover pages to this Amendment No. 11.

Transactions

Since the most recent filing of Amendment No. 11 to Schedule 13D on April 9, 2025, the following transactions have occurred: (1) On June 30, 2025, the Issuer effected an one-for-five reverse stock split of its common stock. (2) From June 25, 2025 through October 6, 2025, TCNT sold a total of 62,794 shares of the issuer's common stock, which are subject to the TCNT Voting Agreement.

Shareholders

No other person is known to the reporting person to have the right to receive or the power to direct the receipt of dividends or the proceeds from the sale of the shares (other than their respective records owner).

Date of 5% Ownership

Not applicable.

Other than voting agreements discussed herein and previously, there are no contracts, arrangements, understandings or relationships (legal or otherwise) among Ainos KY or the parties and any other person with respect to any securities of the Issuer, including, but not limited to transfer or voting of any of the securities, finder's fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies.

None.

Ainos, Inc. — Schedule 13D | 13D Filings