InsidersTradesSigma
Discover the detailed record of transactions filed by 최병산, Director. Officer active across 2 companies, notably 프로티나. In total, 1 filings have been published. The latest transaction was disclosed on 27 April 2026 — Purchase. Regulator: DART (FSS). The full history is accessible without signup.
1 of 1 declaration
Choi Byeong-san is a Board Member at Protina, where he contributes to the governance and strategy of the company. His role involves overseeing operations and making strategic decisions to ensure growth and sustainability at Protina. With significant experience in the sector, he plays a key role in guiding the company's policies.