Joseph P. Hazelton's Purchase of Dyadic International Inc. Common Stock

Joseph P. Hazelton, President and COO of Dyadic International Inc., purchased 26,000 shares of the company's common stock on August 1, 2025, at a price of $0.95 per share. This transaction was part of the company's public offering, which closed on the same day. Following this purchase, Hazelton owns a total of 155,340 shares of Dyadic International Inc. common stock. The shares were purchased directly by Hazelton from the underwriter as part of the public offering, which was conducted under the company's effective shelf registration statement on Form S-3 (File No. 333-273829).