Ainos CEO awarded 300,000 shares in equity grant

Ainos, Inc. director and CEO Tsai Chun-hsien reported equity awards and a conversion on April 15, 2026.

Rhea-AI Filing Summary

Ainos, Inc. director and CEO Tsai Chun-hsien reported equity awards and a conversion on April 15, 2026. He received 300,000 RSUs that vested under the Ainos, Inc. 2023 Stock Incentive Plan, which were then converted into 300,000 shares of Common Stock. A related award entry shows these 300,000 Common shares at $1.61 per share, bringing his directly held Common Stock to 710,372 shares after the transactions. No open-market purchases or sales were reported; all activity reflects compensation-related grants and a derivative conversion.

Insider Trade Summary

300,000 shares exercised/converted

Exercise 3 txns

Insider tsai chun-hsien

Role CEO, PRESIDENT, CHAIRMAN

Type	Security	Shares	Price	Value
Grant/Award	RSU	300,000	$0.00	$0.00
Conversion	RSU	300,000	$0.00	$0.00
Grant/Award	Common Stock	300,000	$1.61	$483K

Holdings After Transaction: RSU — 0 contracts (Direct); Common Stock — 710,372 shares (Direct)

Footnotes (1)

1. F1. Reference is made to the 300,000 RSUs granted and vested to the Reporting Person under the Ainos, Inc. 2023 Stock Incentive Plan.

Key Figures

RSUs granted: 300,000 RSUs RSUs converted: 300,000 RSUs Common Stock awarded: 300,000 shares +2 more

5 metrics

RSUs granted 300,000 RSUs Grant and vesting under Ainos, Inc. 2023 Stock Incentive Plan

RSUs converted 300,000 RSUs Converted into Common Stock derivative security on April 15, 2026

Common Stock awarded 300,000 shares Non-derivative grant/award at $1.61 per share

Post-transaction holdings 710,372 shares Common Stock directly owned after April 15, 2026 transactions

Award price $1.61 per share Value used for 300,000-share Common Stock award entry

Key Terms

RSU, 2023 Stock Incentive Plan, derivative security, Common Stock

4 terms

RSU financial

"Reference is made to the 300,000 RSUs granted and vested to the Reporting Person under the Ainos, Inc. 2023 Stock Incentive Plan."

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

2023 Stock Incentive Plan financial

"300,000 RSUs granted and vested to the Reporting Person under the Ainos, Inc. 2023 Stock Incentive Plan."

derivative security financial

"Conversion of derivative security from 300,000 RSUs into 300,000 shares of Common Stock."

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Common Stock financial

"Underlying security title and non-derivative award reported as Common Stock."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Ainos (AIMD) disclose in this Form 4 for its CEO?

Ainos reported that CEO Tsai Chun-hsien received 300,000 RSUs that vested and were converted into 300,000 shares of Common Stock. These compensation-related transactions increased his directly held Common Stock position to 710,372 shares, with no open-market buying or selling disclosed.

How many RSUs were granted to the Ainos (AIMD) CEO and what happened to them?

The CEO was granted 300,000 restricted stock units (RSUs), which vested under the Ainos, Inc. 2023 Stock Incentive Plan. Those 300,000 RSUs were then fully converted into 300,000 shares of Common Stock in a derivative conversion, leaving no remaining RSU position in this filing.

At what price were the Ainos (AIMD) CEO’s new Common shares recorded in the Form 4?

The Form 4 shows a grant or award of 300,000 shares of Ainos Common Stock at a figure of $1.61 per share. This entry reflects the value used for the compensation-related equity award, rather than an open-market purchase or sale transaction.

How many Ainos (AIMD) Common shares does the CEO hold after these transactions?

After the April 15, 2026 equity award and RSU conversion, CEO Tsai Chun-hsien directly holds 710,372 shares of Ainos Common Stock. This total comes from the non-derivative section of the Form 4, which reports post-transaction ownership for the affected Common Stock position.

Were there any open-market buys or sells by the Ainos (AIMD) CEO in this Form 4?

No open-market buys or sells were reported. The transactions are coded as grants/awards and a conversion of derivative securities, reflecting compensation-related RSU activity and their conversion into Common Stock, rather than discretionary purchases or sales in the open market.

What is the Ainos (AIMD) 2023 Stock Incentive Plan mentioned in the Form 4?

The Form 4 notes that 300,000 RSUs were granted and vested under the Ainos, Inc. 2023 Stock Incentive Plan. This plan provides stock-based compensation such as RSUs to the reporting person, which in this case resulted in fully vested units that converted into Common Stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/17/2026 - 04:15 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

tsai chun-hsien

(Last) (First) (Middle)

10F-2, NO. 66, SHENGYI 5TH RD.

(Street)

ZHUBEI CITY F5 302

(City) (State) (Zip)

TAIWAN

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ainos, Inc. [ AIMD ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO, PRESIDENT, CHAIRMAN

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/15/2026		A		300,000(1)	A	$1.61	710,372	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
RSU	(1)	04/15/2026		A		300,000		(1)	(1)	Common Stock	300,000	(1)	300,000	D
RSU	(1)	04/15/2026		C			300,000	(1)	(1)	Common Stock	300,000	(1)	0	D

Explanation of Responses:

1. Reference is made to the 300,000 RSUs granted and vested to the Reporting Person under the Ainos, Inc. 2023 Stock Incentive Plan.

	/s/ Chun-Hsien Tsai	04/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)