Ainos (NASDAQ: AIMD) director buys 250 shares via spouse account

Rhea-AI Filing Summary

Ainos, Inc. director Chiang Yao-chung reported an open-market purchase of 250 shares of common stock at $2.30 per share on behalf of a spouse-held account. After this indirect transaction, that account holds 5,779 shares, while the director also directly owns 90,880 shares of Ainos common stock as previously disclosed.

Insider Trade Summary

Net Buyer: 250 shares ($575)

Net Buy 1 txn

Insider chiang yao-chung

Role null

Bought 250 shs ($575.00)

Type	Security	Shares	Price	Value
Purchase	Common Stock	250	$2.30	$575.00

Holdings After Transaction: Common Stock — 5,779 shares (Indirect, By Spouse)

Footnotes (1)

1. [object Object]

Key Figures

Shares purchased: 250 shares Purchase price: $2.30 per share Indirect holdings after transaction: 5,779 shares +2 more

5 metrics

Shares purchased 250 shares Open-market buy on May 28, 2026

Purchase price $2.30 per share Open-market transaction

Indirect holdings after transaction 5,779 shares Spouse-held account following purchase

Direct holdings 90,880 shares Director’s direct Ainos common stock

Net shares bought 250 shares Net-buy direction in transaction summary

Key Terms

open-market purchase, indirect ownership, By Spouse

3 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", "ownership_code": "I""

By Spouse financial

""nature_of_ownership": "By Spouse""

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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 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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026

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	05/28/2026		P		250	A	$2.3	5,779(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	06/01/2026
	** 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) report in this Form 4?

Ainos director Chiang Yao-chung reported buying 250 shares of common stock in an open-market transaction at $2.30 per share, held indirectly through a spouse. This updates the SEC on a recent insider share purchase.

At what price were the Ainos (AIMD) shares purchased in the latest insider filing?

The reported insider purchase was executed at $2.30 per Ainos common share. This price reflects the cost of 250 shares acquired in an open-market transaction, as disclosed in the Form 4 filing.

How many Ainos (AIMD) shares does the spouse-held account own after the Form 4 transaction?

Following the reported transaction, the spouse-held account indirectly associated with the director holds 5,779 Ainos common shares. This figure includes the newly purchased 250 shares disclosed in the Form 4.

How many Ainos (AIMD) shares does director Chiang Yao-chung directly own?

The director directly owns 90,880 Ainos common shares, as noted in the Form 4 footnote. This direct ownership is separate from the 5,779 shares held indirectly through the spouse’s account.

Is the recent Ainos (AIMD) insider transaction recorded as direct or indirect ownership?

The 250-share purchase is recorded as indirect ownership, noted as “By Spouse” in the filing. This means the shares are held in the spouse’s account but are reportable for insider ownership disclosure purposes.

What does the transaction code P mean in the Ainos (AIMD) Form 4?

Transaction code P signifies an open-market or private purchase of shares. In this Ainos Form 4, it indicates the director reported buying 250 common shares rather than receiving them as compensation or through an option exercise.