Dyadic International (DYAI) CFO gets stock bonus and options grant

Rhea-AI Filing Summary

Dyadic International CFO Rawson Ping Wang reported equity compensation on Form 4. On January 2, 2026, Wang acquired 29,158 shares of common stock at $0, representing stock issued upon vesting of RSUs granted as a key employee annual bonus in lieu of a cash bonus earned for the year ended 2025. These RSUs vested in full upon grant, bringing Wang’s directly held common stock to 170,151 shares after the transaction.

On the same date, Wang also received an annual grant of 47,250 stock options with an exercise price of $0.94 per share. This option expires on January 2, 2036 and vests in four equal installments beginning on the first anniversary of the grant date, contingent on continued service to Dyadic International.

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

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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^*

Rawson Ping Wang

(Last) (First) (Middle)

C/O DYADIC INTERNATIONAL, INC.

1044 NORTH U.S. HIGHWAY ONE, SUITE 201

(Street)

JUPITER FL 33477-5094

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
DYADIC INTERNATIONAL INC [ DYAI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	01/02/2026		A		29,158	A	$0(1)	170,151	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
Stock Option	$0.94	01/02/2026		A		47,250(2)		(3)	01/02/2036	Common Stock	47,250	$0	47,250	D

Explanation of Responses:

1. Represents common stock issued upon the vesting of RSUs. The RSUs were granted pursuant to the Issuer's key employee annual bonus, in lieu of a cash bonus earned for the year ended 2025. The RSUs vested in full upon grant.

2. Annual grant of stock options.

3. This option vests in four equal installments beginning on the first anniversary of the date of grant, subject to continued service to the Issuer.

	/s/ Ping Rawson	01/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What insider transactions did Dyadic International (DYAI) report for its CFO?

Dyadic International’s Chief Financial Officer, Rawson Ping Wang, reported two equity awards on January 2, 2026: 29,158 shares of common stock issued at $0 upon RSU vesting, and an annual grant of 47,250 stock options with a $0.94 exercise price.

How many Dyadic (DYAI) shares does the CFO own after this Form 4?

After the reported RSU vesting, Rawson Ping Wang beneficially owns 170,151 shares of Dyadic common stock, held directly.

What was the basis for the 29,158 Dyadic (DYAI) shares issued to the CFO?

The 29,158 common shares represent stock issued upon the vesting of RSUs granted under Dyadic’s key employee annual bonus program, in lieu of a cash bonus earned for the year ended 2025. The RSUs vested in full upon grant.

What are the key terms of the Dyadic (DYAI) CFO’s 47,250 stock options?

The CFO received 47,250 stock options with a $0.94 exercise price, expiring on January 2, 2036. The option vests in four equal installments starting on the first anniversary of the grant date, subject to continued service.

Were the Dyadic (DYAI) CFO’s reported holdings direct or indirect?

The Form 4 indicates the CFO’s 170,151 common shares and 47,250 stock options are held with direct ownership, with no indirect ownership nature specified.

Did the Dyadic (DYAI) Form 4 involve any sale of shares by the CFO?

No sale transactions are reported. The Form 4 shows acquisitions (code A) of common stock via RSU vesting and an annual stock option grant, both at $0 grant price.