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Form SCHEDULE 13D/A AINOS INC Filed by: tsai chun-hsien

April 17, 2026 4:20 PM





If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




schemaVersion:


SCHEDULE 13D




Comment for Type of Reporting Person:
The numbers in Rows 8, 9, and 11 represents beneficial ownership of 710,372 shares of common stock, $0.01 par value (the "Common Stock"), of Ainos, Inc., a Texas corporation (the "Issuer"), which are subject to a voting agreement between the Reporting Person and Ainos Inc., a Cayman Islands corporation ("Ainos KY"). For further details, please see Item 3 and Item 6. The percentage in Row 13 is based on the sum of (i) 7,266,011 shares of Common Stock outstanding as of March 30, 2026 as set forth in the Annual Report on Form 10-K of the Issuer filed with the SEC on March 30, 2026, (ii) 19,531 shares issued for service fee on April 1, 2026; and (iii) 1,239,000 shares of Common Stock granted and vested on April 15, 2026 under the Ainos, Inc. 2023 Stock Incentive Plan.


SCHEDULE 13D


Chun-Hsien Tsai
Signature:/s/ Chun-Hsien Tsai
Name/Title:Chun-Hsien Tsai
Date:04/17/2026

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