Officer/Major Shareholder Securities Holdings Report Filed (No Change)
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Filing of report on holdings of specific securities by officers and major shareholders
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Report completed in standard form with no actual data entered
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No changes in number of securities held or ownership ratios disclosed
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This is a mandatory periodic filing with no market impact
KOSDAQ Filing Information
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Filing: Report on Ownership of Specific Securities by Executives and Major Shareholders
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Company: ATUM (355690)
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Submission: Taek-soo Han
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Receipt: 05-12-2026