Ainos (AIMD) director reports 3,500-share open-market purchase through spouse

Rhea-AI Filing Summary

Ainos, Inc. director Chiang Yao-chung reported an indirect open-market purchase of 3,500 shares of common stock at $2.05 per share, held in the name of his spouse. Following this transaction, indirect holdings total 11,279 shares, in addition to 90,880 shares directly owned as previously disclosed.

Insider Trade Summary

Net Buyer: 3,500 shares ($7,175)

Net Buy 1 txn

Insider chiang yao-chung

Role null

Bought 3,500 shs ($7K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	3,500	$2.05	$7K

Holdings After Transaction: Common Stock — 11,279 shares (Indirect, By Spouse)

Footnotes (1)

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Key Figures

Shares purchased: 3,500 shares Purchase price: $2.05 per share Indirect holdings after: 11,279 shares +1 more

4 metrics

Shares purchased 3,500 shares Open-market purchase of common stock

Purchase price $2.05 per share Price paid for Ainos common stock

Indirect holdings after 11,279 shares Common stock held by spouse following transaction

Direct holdings 90,880 shares Common stock directly owned by reporting person per footnote

Key Terms

open-market purchase, indirect ownership, By Spouse, Form 4

4 terms

open-market purchase financial

"transaction_action: open-market purchase"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

indirect ownership financial

"ownership_type: indirect; direct_or_indirect: I"

By Spouse financial

"nature_of_ownership: By Spouse"

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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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^*

chiang yao-chung

(Last) (First) (Middle)

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

(Street)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/05/2026

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	06/05/2026		P		3,500	A	$2.05	11,279(1)	I	By Spouse

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. In addition to the shares indirectly held, the Reporting Person directly owns 90,880 shares of the Issuer's common stock as previously disclosed.

	/s/ Chun-Hsien Tsai by POA for Yao-Chung Chiang	06/09/2026
	** 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 Ainos (AIMD) disclose in this Form 4?

Ainos disclosed that director Chiang Yao-chung reported an indirect open-market purchase of 3,500 shares of common stock at $2.05 per share, increasing his spouse-held position to 11,279 shares, while he also directly owns 90,880 shares previously reported.

Was the Ainos (AIMD) Form 4 transaction a buy or sell?

The Form 4 shows a buy transaction. It records an open-market purchase of 3,500 Ainos common shares, categorized as an indirect acquisition through the director’s spouse, with no share sales or derivative exercises reported in this filing.

How many Ainos (AIMD) shares does the reporting person hold after this Form 4?

After this transaction, indirect holdings total 11,279 Ainos common shares through the director’s spouse. A footnote states he also directly owns 90,880 common shares, which were previously disclosed and are separate from the newly purchased indirect position.

What price was paid for the Ainos (AIMD) shares in the reported trade?

The reported open-market purchase was executed at $2.05 per Ainos common share. The director’s spouse acquired 3,500 shares at this price, resulting in an indirect increase in the family’s holdings as reflected in the Form 4 transaction details.

Is the Ainos (AIMD) Form 4 transaction direct or indirect ownership?

The 3,500 shares were acquired as indirect ownership, labeled “By Spouse” in the filing. Separately, a footnote confirms the reporting person also directly owns 90,880 Ainos common shares, illustrating both direct and indirect positions in the company.