Jack Kaye - 05 Mar 2025 Form 4 Insider Report for DYADIC INTERNATIONAL INC (DYAI)

Role: Director
Signature: /s/ Ping Rawson, attorney-in-fact
Issuer symbol: DYAI
Transactions as of: 05 Mar 2025
Net transactions value: +$0.35
Form type: 4
Filing time: 07 Mar 2025, 16:07:16 UTC
Previous filing: 07 Jan 2025
Next filing: 13 Jun 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DYAI	Common Stock	Options Exercise	$9,975	+7,500	+13%	$1.33	64,666	05 Mar 2025	Direct	F1
transaction	DYAI	Common Stock	Options Exercise	$29,925	+22,500	+35%	$1.33	87,166	05 Mar 2025	Direct	F1
transaction	DYAI	Common Stock	Tax liability	$39,900	-27,517	-32%	$1.45	59,649	05 Mar 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DYAI	Stock Option	Options Exercise	$0	-7,500	-100%	$0.000000	0	05 Mar 2025	Common Stock	7,500	$1.33	Direct	F1
transaction	DYAI	Stock Option	Options Exercise	$0	-22,500	-100%	$0.000000	0	05 Mar 2025	Common Stock	22,500	$1.33	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reporting person exercised a total of 30,000 stock options and paid the exercise price through the withholding by the Issuer of 27,517 shares of common stock underlying the stock options (equal to the value of the exercise price), based on a market price of $1.45, which was the closing price of the Issuer's common stock on March 5, 2025.