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ATUM CO., LTD. — Investor Relations & Filings

Ticker · 355690 ISIN · KR7355690009 KO Professional, scientific and technical activities
Open in API
Filings indexed 135 across all filing types
Latest filing 2026-05-15 Interim / Quarterly Rep…
Country KR South Korea
Listing KO 355690

About ATUM CO., LTD.

https://www.atum.bio/

ATUM is an integrated biologics development partner offering a comprehensive suite of services, from virtual DNA sequence to research cell bank. The company's core activities include gene design and synthesis, protein expression and analytics, cell line development, and antibody and protein engineering. Utilizing expertise in machine learning and proprietary platforms like DNA2GO for gene fragments and the lightningHEK and discoCHO expression systems, ATUM facilitates the discovery and optimization processes for its clients. The company operates as a collaborative, one-stop partner for biological engineering projects, providing fully in-house services.

Recent filings

Filing Released Lang Actions
분기보고서 (2026.03)
Interim / Quarterly Report Classification · 95% confidence The document is titled “분기보고서” (Quarterly Report) covering the period 2026-01-01 to 2026-03-31, includes detailed sections such as company overview, subsidiary information, capital changes, share data, bylaws, and extensive business descriptions. It is a full interim/quarterly report, not merely an announcement or summary. This matches the definition of an Interim / Quarterly Report (Code: IR). Q1 2026
2026-05-15 Korean
임원ㆍ주요주주특정증권등소유상황보고서
Director's Dealing Classification · 87% confidence The document is a formal reporting of an executive’s and major shareholder’s ownership and changes in certain securities (insider holdings, allocations, disposals of warrants and shares). This directly matches an insider trading/Director’s Dealing report. Therefore it is classified as DIRS.
2026-05-12 Korean
주식등의대량보유상황보고서(일반)
Major Shareholding Notification Classification · 94% confidence The document is a statutory "주식등의 대량보유상황보고서" (Large Shareholding Report) filed with the financial regulator and stock exchange, detailing the number of shares held by a major shareholder and related parties, changes in ownership percentages, purpose of acquisition, and transaction history. This matches the definition of a Major Shareholding Notification (crossing significant thresholds).
2026-05-12 Korean
증권발행실적보고서
Regulatory Filings
2026-04-30 Korean
증권발행결과(자율공시) (주주배정후 실권주 일반공모)
Regulatory Filings
2026-04-30 Korean
유상증자또는주식관련사채등의청약결과(자율공시)
Share Issue/Capital Change Classification · 90% confidence The document is a voluntary disclosure (“자율공시”) detailing the subscription results of a paid‐in capital increase (rights offering), including number of shares offered, subscription ratio, treatment of fractional shares, and future schedule. It is an announcement of a share issue/capital change, not a full financial report or earnings release. Therefore it fits the Share Issue/Capital Change category (SHA).
2026-04-24 Korean

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