Ainos (NASDAQ: AIMD) 10% owner sells 41,000 shares to cover taxes

Rhea-AI Filing Summary

Taiwan Carbon Nano Technology Corp, a ten percent owner of Ainos, Inc., reported an open-market sale of common stock. The entity sold 41,000 shares on May 26, 2026 at an average price of $2.36 per share and held 948,925 shares afterward.

According to a footnote, the shares were sold to cover income tax obligations, which makes this a more routine, tax-related transaction rather than a large change in ownership position.

Insider Trade Summary

Net Seller: 41,000 shares ($96,760)

Net Sell 1 txn

Insider Taiwan Carbon Nano Technology Corp

Role null

Sold 41,000 shs ($97K)

Type	Security	Shares	Price	Value
Sale	Common Stock	41,000	$2.36	$97K

Holdings After Transaction: Common Stock — 948,925 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 41,000 shares Sale price: $2.36 per share Shares held after: 948,925 shares

3 metrics

Shares sold 41,000 shares Open-market sale on May 26, 2026

Sale price $2.36 per share Average sale price for Ainos common stock

Shares held after 948,925 shares Taiwan Carbon Nano Technology Corp post-transaction holdings

Key Terms

open-market sale, ten percent owner, income tax obligations

3 terms

open-market sale financial

"The entity sold 41,000 shares on May 26, 2026 at an average price of $2.36 per share."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

ten percent owner financial

"Taiwan Carbon Nano Technology Corp, a ten percent owner of Ainos, Inc., reported an open-market sale of common stock."

income tax obligations financial

"According to a footnote, the shares were sold to cover income tax obligations, which makes this a more routine transaction."

Form 4 Insider Transactions: What Each Field Means →

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^*

Taiwan Carbon Nano Technology Corp

(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)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026

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	05/26/2026		S		41,000(1)	D	$2.36	948,925	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

Explanation of Responses:

1. The Reporting Person sold shares of common stock to cover income tax obligations.

	Taiwan Carbon Nano Technology Corporation By: /s/ Chun-Hsien Tsai, Chairman, Chief Executive Officer	05/27/2026
	** 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)

FAQ

What insider transaction did AIMD’s Taiwan Carbon Nano Technology Corp report?

Taiwan Carbon Nano Technology Corp reported selling 41,000 Ainos common shares on May 26, 2026. The sale was described as an open-market transaction and was conducted to cover income tax obligations, according to the filing’s footnote explanation.

At what price did Taiwan Carbon Nano Technology Corp sell AIMD shares?

The shares were sold at an average price of $2.36 per share. This reflects an open-market sale of Ainos common stock specifically identified in the Form 4, tied to the holder’s income tax obligations rather than a discretionary portfolio shift.

How many AIMD shares does Taiwan Carbon Nano Technology Corp hold after the sale?

After selling 41,000 shares, Taiwan Carbon Nano Technology Corp held 948,925 Ainos common shares. This remaining stake indicates the transaction was relatively small compared with its overall position, leaving the holder with a substantial continuing ownership interest.

What was the purpose of the AIMD share sale by Taiwan Carbon Nano Technology Corp?

The filing states the shares were sold to cover income tax obligations. This suggests the transaction was driven by tax needs rather than a broad change in investment view, even though it is reported using a standard open-market sale transaction code.

Is Taiwan Carbon Nano Technology Corp considered a major Ainos (AIMD) shareholder?

Yes. The Form 4 identifies Taiwan Carbon Nano Technology Corp as a ten percent owner of Ainos. Even after selling 41,000 shares, the entity continued to hold 948,925 shares of common stock, reflecting a significant ownership position in the company.