Transaction #25661 · Form 4 · 0001493152-25-029409

DYADIC INTERNATIONAL INC · Stock award · Senior Secured Convertible Promissory Note due Dec 31, 2027

DYADIC INTERNATIONAL INC · Transacted December 23, 2025 · Filed December 29, 2025

Original SEC filing ↗

What does this filing report?

An SEC Form 4 filing for DYADIC INTERNATIONAL INC records a stock award involving Senior Secured Convertible Promissory Note due Dec 31, 2027 on December 23, 2025. The quantity was not reported. The filing date is December 29, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.

The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.

Transaction details

Company CIK
0001213809
Security type
Derivative
Acquisition type
Stock award · Code A
Quantity acquired
Not reported
Reported price
Not reported · See footnotes
Reference value
Not reported
Currency
Currency not specified
Ownership
Indirect
Holdings after transaction
Not reported
Ownership description
Through Mark A Emalfarb Trust U/A/ DTD 10/1/1987
SEC acceptance time
Dec 29, 2025, 5:00 PM EST
10b5-1 indication
Not indicated

Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.

Reporting owners

These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.

Company listings

DYAI · Nasdaq

This transaction is not mapped to a specific company listing.

Derivative terms

Underlying security
Common Stock
Underlying quantity
952,381
Conversion / exercise price
1.05
Exercise date
Not reported
Expiration date
December 31, 2027

Filing footnotes & remarks

F1
On December 23, 2025, Dyadic International, Inc. (the "Company") entered into an amendment (the "Amendment") to the Form of Senior Secured Convertible Promissory Note due March 8, 2027 (the "Convertible Notes"). Following the Amendment, the Convertible Notes will mature December 31, 2027 and their conversion price is $1.05. The Amendment was approved by the Company's board of directors, and did not involve the exchange of consideration between the Company and the holders.

Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.

This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.