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Justek

져스텍 · 153890 · KOSDAQ

Filings, last 12 months

Supply contracts

Insider reports

Share & bond issues

At a glance

Justek filed 27 disclosures in the last 12 months, including 12 insider and 3 5% holder. The most recent key filing was on Aug 4: Executive bought 2,500 sh on the market at an average ₩5,860, Jul 31.

Of 3 recent 5%+ holder reports, 3 raised and 0 cut a stake; the largest stake reported was 53.47% on Aug 4.

Financial summary

2026 H1

Revenue ₩8.5B

Op. profit ₩815.4M

Debt/equity 40%

RevenueOperating profitOperating lossConsolidated where available · from periodic reports

5%+ holder reports

8/4Stake 53.47%+0.11pp

7/6Stake 12.36%+12.36pp

7/2Stake 53.36%+53.36pp

Key filings

8/4InsiderBuyExecutive bought 2,500 sh on the market at an average ₩5,860, Jul 31.₩14.7M

8/4InsiderBuyCEO bought 3,000 sh on the market at an average ₩5,734, Jul 31.₩17.2M

8/4InsiderBuyExecutive bought 1,000 sh on the market at an average ₩5,790, Jul 31.₩5.8M

8/4InsiderBuyExecutive bought 1,000 sh on the market at an average ₩5,720, Jul 31–Aug 3.₩5.7M

8/4InsiderBuyDirector bought 1,000 sh on the market at an average ₩5,525, Jul 31.₩5.5M

8/4InsiderBuyExecutive bought 1,000 sh on the market at an average ₩5,800, Jul 31.₩5.8M

8/4InsiderBuyCEO bought 10,000 sh on the market at an average ₩5,417, Jul 31–Aug 3.₩54.2M

8/45% holderA major holder's stake rose from 53.36% to 53.47%.53.47%

7/65% holderNew 5%A major holder's stake rose from 0.00% to 12.36% (open-market sale).12.36%

7/3InsiderInsider ownership report

7/25% holderNew 5%A major holder's stake rose from 0.00% to 53.36% (new report).53.36%

Other filings

8/14Half-year report

7/3Quarterly report

6/23Securities issuance results

6/16Prospectus

6/16Registration statement

6/11Prospectus

5/18Registration statement

5/14Registration statement

5/11Registration statement

4/16Registration statement

3/30Audit report

Links open the original filing on DART, in Korean.