Y-Biologics’ Park Young Woo lifts stake to 30.60% in shareholding disclosure

• Y-Biologics’ disclosed stake rose to 4,713,487 shares, or 30.60%, as of Oct. 1 from 4,563,487 shares, or 29.70%.
• The increase reflected newly granted stock options on Sept. 22, lifting potential shares by 150,000.
• Voting-share holdings stayed at 4,469,487 shares, while the voting stake slipped to 29.02% from 29.09%.

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: 20261001000539), on October 01, 2026, and is solely responsible for the information contained therein.