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Bistos Co., Ltd. — Investor Relations & Filings

Ticker · 419540 ISIN · KR7419540000 KO Manufacturing
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Filings indexed 111 across all filing types
Latest filing 2026-03-06 Earnings Release
Country KR South Korea
Listing KO 419540

About Bistos Co., Ltd.

https://www.bistos.co.kr/

Bistos Co., Ltd. is a company that researches, develops, and manufactures medical equipment. The company's name is an abbreviation for 'Bio Signal Total Solution,' reflecting its specialization in biosignal-based diagnostic and monitoring devices. Its product portfolio is concentrated in maternal and neonatal care, as well as general patient monitoring. Key product categories include fetal monitors, ultrasound doppler systems, infant incubators, phototherapy units, and patient vital sign monitors. The company also offers a range of other devices such as electric breast pumps, medical headlamps, infrared thermometers, and a transcutaneous nerve stimulator for the treatment of ADHD.

Recent filings

Filing Released Lang Actions
매출액또는손익구조30%(대규모법인은15%)이상변동
Earnings Release Classification · 95% confidence The document is a regulatory filing from a Korean company (Bistos) announcing a significant change (over 30%) in revenue or profit structure compared to the previous fiscal year. This is a standard disclosure requirement for listed companies in Korea to report preliminary financial results before the final audit is completed. Since it provides key financial highlights (revenue, operating profit, net income) and explains the reasons for the variance, it fits the definition of an Earnings Release (ER). FY 2025
2026-03-06 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 in Korea. This type of filing is a mandatory disclosure by company insiders (directors/executives) regarding their personal share transactions, holdings, and changes in ownership. According to the provided definitions, this corresponds to 'Director's Dealing' (DIRS).
2026-01-28 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. It details the sale of shares by an executive (Park Seung Gi) of Bistos Co., Ltd. This type of filing is specifically categorized as 'Director's Dealing' (DIRS) in the provided schema, as it reports personal share transactions by company insiders.
2026-01-28 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 (DART). This type of filing is specifically used to report changes in share ownership by insiders or major shareholders, which corresponds to the 'Director's Dealing' (DIRS) category in the provided taxonomy.
2026-01-27 Korean
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 under the Capital Markets Act. It details the acquisition of shares by CU Medical System in VISTOS, including the number of shares, ownership percentage, and the purpose of the holding (management influence). This corresponds to the 'Major Shareholding Notification' category.
2026-01-27 Korean
주식등의대량보유상황보고서(약식)
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 under the Capital Markets Act. It details changes in share ownership, specifically the disposal of shares by major shareholders and the subsequent loss of control. This falls under the category of Major Shareholding Notification (MRQ), as it tracks significant changes in share ownership levels and the status of major shareholders.
2026-01-21 Korean

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