Y-Biologics grants 210,000 stock options at KRW 8,750 per share

• Y-Biologics granted 210,000 common-share stock options to five directors, officers, and employees.
• Exercise price set at KRW 8,750 per share.
• Options become exercisable from Sept. 22, 2028 through Sept. 21, 2031.
• Total outstanding option grants rise to 788,100 common-share options.
• Black-Scholes fair value estimated at KRW 3,597 per option.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Y-Biologics Inc. published the original content used to generate this news brief via DART, the regulatory disclosure system operated by the South Korea Financial Supervisory Service (FSS) (Ref. ID: 20261001000513), on October 01, 2026, and is solely responsible for the information contained therein.