MARK A. EMALFARB - 02 Jan 2024 Form 4 Insider Report for DYADIC INTERNATIONAL INC (DYAI)

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	Award	$0	+200,000		$0.000000	200,000	02 Jan 2024	Common Stock	200,000	$1.59	Direct	F1, F2

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

Id	Content
F1	Annual grant of stock options.
F2	This option vests in four equal installments beginning on the first anniversary of the date of grant.