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Y-Biologics, Inc — Investor Relations & Filings

Ticker · 338840 ISIN · KR7338840002 KO Professional, scientific and technical activities
Open in API
Filings indexed 117 across all filing types
Latest filing 2025-12-18 Major Shareholding Noti…
Country KR South Korea
Listing KO 338840

About Y-Biologics, Inc

https://ybiologics.com/en/

Y-Biologics, Inc. is a biotechnology company specializing in the discovery and development of novel antibody-based therapeutics. The company's primary focus is on immuno-oncology, where it develops next-generation multispecific antibodies for the treatment of cancer. Y-Biologics leverages its proprietary human antibody discovery platform to advance its internal pipeline and support collaborations through technology transfers and joint development partnerships.

Recent filings

Filing Released Lang Actions
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 100% confidence The document is a '주식등의 대량보유상황보고서' (Report on Large Shareholding), which is a standard regulatory filing in South Korea (often referred to as a 5% report). It details changes in share ownership by major shareholders and special related parties, specifically due to the exercise of stock options. This falls under the category of Major Shareholding Notification.
2025-12-18 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is a 'Report on Ownership of Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주 특정증권등 소유상황보고서) filed with the Korean Financial Supervisory Service (FSS) and Korea Exchange. This type of filing is a mandatory disclosure of insider transactions or changes in share ownership by company directors or major shareholders. In the provided taxonomy, this corresponds to 'Director's Dealing' (DIRS), which covers personal share transactions and ownership status reports by company executives.
2025-12-18 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is titled '임원ㆍ주요주주 특정증권등 소유상황보고서' (Report on Ownership of Specific Securities by Executives and Major Shareholders). This is a standard regulatory filing in South Korea (DART system) used by corporate insiders to disclose changes in their shareholdings, such as stock option exercises. This corresponds to the 'Director's Dealing' category.
2025-12-18 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is a 'Report on Ownership of Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주 특정증권등 소유상황보고서) filed with the Korean financial authorities (Financial Supervisory Service/Korea Exchange). This type of filing is a mandatory disclosure by company insiders (directors/executives) regarding their personal share transactions or changes in ownership. In the provided taxonomy, this corresponds to 'Director's Dealing' (DIRS).
2025-12-18 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 100% confidence The document is a 'Report on Ownership of Specific Securities by Executives and Major Shareholders' (임원ㆍ주요주주 특정증권등 소유상황보고서) filed with the Korean Financial Supervisory Service (FSS). This is a standard regulatory filing in South Korea used to disclose insider transactions and changes in share ownership by company directors or major shareholders. Based on the provided definitions, this falls under 'Director's Dealing' (DIRS), which covers reports of personal share transactions by company directors and executives.
2025-12-18 Korean
주주명부폐쇄기간또는기준일설정
Regulatory Filings Classification · 95% confidence The document is a short regulatory announcement regarding the setting of a record date for the upcoming Annual General Meeting (AGM). It does not contain the full AGM materials or proxy statements, but rather serves as a formal notice of the record date for shareholder rights. Given it is a regulatory announcement regarding meeting logistics, it falls under the RNS category.
2025-12-16 Korean

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