13D Filings
AINOS INC
Amendment
Ownership

8.33%

Total Shares

710,372

Issuer CIK

1859309

Event Date

Apr 14, 2026

Accepted

Apr 17, 2026, 04:19 PM

Reporting Persons (1)
NameType% of ClassAggregateSole VotingShared Voting
Chun-Hsien Tsai
Individual
8.33%710,3720710,372
Disclosure Items (4)

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

On April 15, 2026, The Issuer granted 300,000 restricted stock units ("RSUs") of Common Stock to the Reporting Person under the Ainos, Inc. 2023 Stock Incentive Plan, all of which are fully vested.

The Reporting Person acquired the 300,000 RSUs under the Ainos, Inc. 2023 Stock Incentive Plan. Although the Reporting Person is the Chief Executive Officer, President, and Chairman of Board, the Reporting Person does not have any present plans or proposals that relate to or would result in any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D, although, subject to the agreements described herein, the Reporting Person, at any time, and from time to time, may review, reconsider and change their position and/or change their purpose and/or develop such plans and may seek to influence management of the Issuer or the Board of Directors with respect to the business and affairs of the Issuer and may from time to time consider pursuing or proposing such matters with advisors, the Issuer, or other persons.

Percentage of Class

The information requested is incorporated herein by reference to the cover pages to this Statement.

Number of Shares

The information requested is incorporated herein by reference to the cover pages to this Statement.

Transactions

The reporting person has not effected any transactions in Common Stock during the past 60 days, except as described in this Statement.

Shareholders

The information in Item 2 is incorporated by reference into this Item 5(d).

Date of 5% Ownership

Not applicable.

AINOS INC — Schedule 13D | 13D Filings