Equity grant lifts Ainos (NASDAQ: AIMD) director stake to 686,999

Filing Impact

(High)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Ainos, Inc. director TSAI CHUN-JUNG received equity compensation through restricted stock units that immediately converted into common shares. On the transaction date, 330,000 RSUs were granted and vested under the Ainos, Inc. 2023 Stock Incentive Plan and then converted into 330,000 shares of common stock at a stated price of $1.61 per share. Following these transactions, TSAI directly holds 686,999 shares of Ainos common stock. These are compensation-related awards rather than open-market purchases or sales.

Insider Trade Summary

330,000 shares exercised/converted

Mixed 3 txns

Insider TSAI CHUN-JUNG

Role Director

Type	Security	Shares	Price	Value
Grant/Award	RSU	330,000	$0.00	--
Conversion	RSU	330,000	$0.00	--
Grant/Award	Common Stock	330,000	$1.61	$531K

Holdings After Transaction: RSU — 330,000 shares (Direct); Common Stock — 686,999 shares (Direct)

Footnotes (1)

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Key Figures

RSUs granted and vested: 330,000 RSUs RSUs converted: 330,000 RSUs Common shares acquired: 330,000 shares +2 more

5 metrics

RSUs granted and vested 330,000 RSUs Granted and vested under Ainos, Inc. 2023 Stock Incentive Plan

RSUs converted 330,000 RSUs Converted into common stock on the transaction date

Common shares acquired 330,000 shares Common stock received from RSU conversion

Reported share price $1.61 per share Transaction price for 330,000 common shares

Shares held after transaction 686,999 shares Director’s direct holdings following the equity award

Key Terms

RSU, 2023 Stock Incentive Plan, derivative security

3 terms

RSU financial

"330,000 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

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

derivative security financial

"Conversion of derivative security"

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.

Form 4 Insider Transactions: What Each Field Means →

04/17/2026 - 04:17 PM

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-JUNG

(Last)

(First)

(Middle)

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

(Street)

ZHUBEI CITY

320

(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
	Officer (give title below)	Other (specify below)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/15/2026		A		330,000⁽¹⁾	A	$1.61	686,999	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
RSU	⁽¹⁾	04/15/2026		A		330,000		⁽¹⁾	⁽¹⁾	Common Stock	330,000	⁽¹⁾	330,000	D
RSU	⁽¹⁾	04/15/2026		C			330,000	⁽¹⁾	⁽¹⁾	Common Stock	330,000	⁽¹⁾	0	D

Explanation of Responses:

1. Reference is made to the 330,000 RSUs granted and vested to the Reporting Person under the Ainos, Inc. 2023 Stock Incentive Plan.

	/s/ Chun-Hsien Tsai POA for Chun-Jung 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Ainos (AIMD) director TSAI CHUN-JUNG report?

TSAI CHUN-JUNG reported a compensation-related equity award. He received 330,000 restricted stock units that vested and were converted into 330,000 shares of Ainos common stock, increasing his direct holdings to 686,999 shares without any open-market buying or selling activity.

How many Ainos (AIMD) shares did the director acquire in this Form 4 filing?

The director acquired 330,000 shares of Ainos common stock. These shares came from 330,000 restricted stock units that were granted and vested under the Ainos, Inc. 2023 Stock Incentive Plan, then converted into the same number of common shares as part of his equity compensation.

Was the Ainos (AIMD) director’s Form 4 transaction a market purchase or sale?

The Form 4 does not show any open-market purchases or sales. Instead, it reflects a grant of 330,000 restricted stock units and their conversion into 330,000 common shares as equity compensation, all reported with acquisition-type transaction codes rather than buy or sell codes.

What is the reported price for the Ainos (AIMD) director’s new common shares?

The 330,000 common shares are reported at a transaction price of $1.61 per share. This price is part of the Form 4 disclosure for the equity award and conversion, and it does not indicate that the director bought or sold these shares on the open market.

How many Ainos (AIMD) shares does the director hold after this equity award?

After the reported grant and conversion, TSAI CHUN-JUNG directly holds 686,999 shares of Ainos common stock. This total reflects his position following the 330,000-share equity award tied to restricted stock units, as disclosed in the Form 4 filing.

What equity plan was used for the Ainos (AIMD) director’s RSU award?

The 330,000 restricted stock units were granted and vested under the Ainos, Inc. 2023 Stock Incentive Plan. This plan provided the framework for issuing RSUs that then converted into 330,000 shares of common stock as part of the director’s compensation package.