Cardio Diagnostics (CDIO) director receives 3,205 stock options at $1.95 exercise price

Rhea-AI Filing Summary

Cardio Diagnostics Holdings, Inc. director Peter K. Fung received a grant of stock options for 3,205 shares of Common Stock at an exercise price of $1.95 per share on March 31, 2026. Following the grant, he holds stock options for a total of 9,513 shares, expiring on March 31, 2036.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Fung Peter K

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Options (Right to Buy)	3,205	$1.95	$6K

Holdings After Transaction: Stock Options (Right to Buy) — 9,513 shares (Direct)

Footnotes (1)

Key Figures

Options granted: 3,205 options Exercise price: $1.95 per share Total options after grant: 9,513 options +1 more

4 metrics

Options granted 3,205 options Grant of stock options on March 31, 2026

Exercise price $1.95 per share Exercise price for 3,205 granted options

Total options after grant 9,513 options Total stock options held following the transaction

Option expiration date March 31, 2036 Expiration for 3,205 granted options

Key Terms

Stock Options (Right to Buy), grant/award acquisition, Common Stock, exercise price

4 terms

Stock Options (Right to Buy) financial

"security_title: Stock Options (Right to Buy)"

grant/award acquisition financial

"transaction_action: grant/award acquisition"

Common Stock financial

"underlying_security_title: 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.

exercise price financial

"conversion_or_exercise_price: 1.9500"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

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^*

Fung Peter K

(Last) (First) (Middle)

C/O CARDIO DIAGNOSTICS HOLDINGS INC.

311 W. SUPERIOR ST. SUITE 444

(Street)

CHICAGO ILLINOIS 60654

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Cardio Diagnostics Holdings, Inc. [ CDIO ]

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)
03/31/2026

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

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
Stock Options (Right to Buy)	$1.95	03/31/2026		A		3,205		03/31/2026	03/31/2036	Common Stock	3,205	$1.95	9,513	D

Explanation of Responses:

	/s/ Elisa Luqman as attorney-in-fact for Peter Fung	04/02/2026
	** 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 Cardio Diagnostics (CDIO) report for Peter K. Fung?

Cardio Diagnostics reported that director Peter K. Fung received a grant of 3,205 stock options. These options give him the right to buy Common Stock at $1.95 per share, increasing his total option holdings to 9,513 shares after this award.

What is the exercise price of Peter K. Fung’s new CDIO stock options?

The newly granted stock options to director Peter K. Fung have an exercise price of $1.95 per share. This means he can purchase Cardio Diagnostics Common Stock at $1.95 per share when he exercises these 3,205 options, subject to any applicable vesting terms.

How many Cardio Diagnostics (CDIO) stock options does Peter K. Fung hold after this grant?

After this grant, Peter K. Fung holds stock options covering 9,513 shares of Cardio Diagnostics Common Stock. The 3,205 options granted on March 31, 2026, were added to his prior option holdings to reach this total reported position.

When do Peter K. Fung’s newly granted CDIO stock options expire?

The 3,205 stock options granted to Peter K. Fung expire on March 31, 2036. This expiration date defines the last day he can exercise these options to buy Cardio Diagnostics Common Stock at the fixed $1.95 per share exercise price.

Is Peter K. Fung’s CDIO option grant a purchase or a compensation award?

The transaction is classified as a grant or award acquisition rather than an open-market purchase. It reflects compensation in the form of stock options, giving Peter K. Fung rights to buy 3,205 CDIO shares at $1.95 per share if exercised.