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Key filings, October 2, 2026

571 filings · 12 highlights
← October 1, 2026October 6, 2026 →

Supply contracts 18

10/2Openedges TechnologyWorth 41.7% of last year's revenue, over about 36 months.₩6.7B
10/2AmendedSeohee ConstructionWorth 25.8% of last year's revenue, over about 130 months.₩277B
10/2AmendedGeumhwa PSCWorth 21.6% of last year's revenue, over about 25 months.₩73.1B
10/2XIIlabWorth 21.3% of last year's revenue, over about 15 months.₩2.2B
10/2ShinwonConstructionWorth 17.8% of last year's revenue, over about 6 months.₩37.5B
10/2AmendedTSIWorth 10.1% of last year's revenue, over about 16 months.₩27.5B
10/2Iljin ElectricWorth 9.2% of last year's revenue.₩187B
10/2AmendedDL HoldingsWorth 7.9% of last year's revenue, over about 40 months.₩657B
10/2AmendedDL E&CWorth 7.9% of last year's revenue, over about 40 months.₩657B
10/2ilShinbiobaWorth 6.6% of last year's revenue, over about 6 months.₩960M
10/2AmendedKUMHO Engineering & ConstructionWorth 6.5% of last year's revenue, over about 43 months.₩103B
10/2Samsung Heavy IndustriesWorth 6.3% of last year's revenue, over about 32 months.₩672B
10/2AmendedKorea Engineering ConsultantsWorth 5.9% of last year's revenue, over about 55 months.₩22.2B
10/2Telcon RF PharmaceuticalWorth 5.3% of last year's revenue, over about 12 months.₩2.3B
10/2AmendedGS Engineering & ConstructionWorth 2.6% of last year's revenue, over about 43 months.₩274B
10/2TY HoldingsWorth 2.6% of last year's revenue.₩56B
10/2Taeyoung Engineering & ConstructionWorth 2.6% of last year's revenue.₩56B
10/2Samsung BiologicsWorth 2% of last year's revenue, over about 63 months.₩93.5B

Preliminary earnings 2

10/2Grand Korea LeisurePreliminary operating results
10/2ParadisePreliminary operating results

Insider trades 84

10/2BuyLS Marine Solution10%+ shareholder bought 109,809 sh on the market at an average ₩32,782, Sep 28–Oct 1.₩3.6B
10/2BuyHandsome10%+ shareholder bought 131,000 sh on the market at an average ₩19,501, Sep 23–Oct 7.₩2.6B
10/2BuyWiSoL10%+ shareholder bought 216,014 sh on the market at an average ₩6,655, Sep 21–Oct 2.₩1.4B
10/2BuyHantopPresident bought 411,500 sh on the market at an average ₩3,087, Sep 23–Oct 2.₩1.3B
10/2BuyWIZ10%+ shareholder bought 280,939 sh on the market at an average ₩2,009, Sep 23–Oct 6.₩564.4M
10/2BuyARIBIO HoldingsDirector bought 155,567 sh on the market at an average ₩3,252, Sep 30.₩505.9M
10/2BuySimpacDirector bought 65,342 sh on the market at an average ₩4,832, Sep 30–Oct 2.₩315.7M
10/2SaleNaverAn insider sold 828 sh on the market at an average ₩202,000, Sep 28.₩167.3M
10/2BuyUnickCEO bought 43,000 sh on the market at an average ₩3,870, Sep 30–Oct 6.₩166.4M
10/2SaleEugeneTechnologyExecutive sold 1,000 sh on the market at an average ₩162,000, Sep 23.₩162M
10/2BuyCarelabs10%+ shareholder bought 60,506 sh on the market at an average ₩2,225, Sep 29–Oct 2.₩134.6M
10/2BuyGenolutionCEO bought 72,418 sh on the market at an average ₩1,447, Sep 23–Oct 7.₩104.8M
10/2SaleEugeneTechnologyExecutive sold 600 sh on the market at an average ₩146,250, Sep 28.₩87.8M
10/2SaleMirae Asset Venture Investment10%+ shareholder sold 4,948 sh on the market at an average ₩17,332, Sep 28–Oct 2.₩85.8M
10/2BuyBookook Securities10%+ shareholder bought 1,500 sh on the market at an average ₩50,540, Sep 29–Oct 2.₩75.8M
10/2BuyHCTCEO bought 16,934 sh on the market at an average ₩3,140, Oct 1.₩53.2M
10/2BuyUnickDirector bought 12,092 sh on the market at an average ₩3,874, Sep 28–Oct 6.₩46.8M
10/2SaleEugeneTechnologyExecutive sold 272 sh on the market at an average ₩162,900, Sep 23.₩44.3M
10/2BuyStonebridge VenturesExecutive bought 9,000 sh on the market at an average ₩4,594, Sep 28–30.₩41.3M
10/2BuyHyungkuk F&BCEO bought 32,385 sh on the market at an average ₩1,170, Sep 23–Oct 1.₩37.9M
10/2BuyClean & Science10%+ shareholder bought 10,000 sh on the market at an average ₩3,150, Sep 29.₩31.5M
10/2SaleEugeneTechnologyPresident sold 180 sh on the market at an average ₩156,000, Sep 30.₩28.1M
10/2BuyYuhanPresident bought 300 sh on the market at an average ₩72,700, Oct 1.₩21.8M
10/2SaleRingNetDirector sold 5,000 sh on the market at an average ₩4,182, Sep 29.₩20.9M
10/2BuyDt&CCEO bought 9,995 sh on the market at an average ₩1,998, Sep 29–Oct 1.₩20M
10/2SaleNaverAn insider sold 50 sh on the market at an average ₩195,200, Sep 29.₩9.8M
10/2BuyLDTCEO bought 2,194 sh on the market at an average ₩2,325, Aug 18–Sep 30.₩5.1M
10/2BuyMetabiomedDirector bought 1,000 sh on the market at an average ₩3,684, Sep 28.₩3.7M
10/2BuyUnickPresident bought 784 sh on the market at an average ₩3,835, Sep 28–29.₩3M
10/2BuyiADirector bought 200 sh on the market at an average ₩3,204, Sep 28.₩640,800
10/2Other changeRaontechAn insider's holding fell by 160,000 sh (gift).-160,000 sh
10/2Other changeChanghae EthanolPresident's holding rose by 1,521,188 sh (other change).+1,521,188 sh
10/2Other changeChanghae EthanolChairman's holding fell by 1,521,188 sh (gift).-1,521,188 sh
10/2Other changeAprogen Biologics10%+ shareholder's holding rose by 12,853,965 sh (rights offering, other change).+12,853,965 sh
10/2Other changeSeobu T&DCEO's holding rose by 28,009 sh (other change).+28,009 sh
10/2Other changeSeobu T&DAn insider's holding fell by 28,009 sh (other change).-28,009 sh
10/2SaleDowooinsysAn insider sold 2,253 sh on the market, Feb 24–Sep 29.₩0
10/2SaleDowooinsysAn insider sold 1,000 sh on the market, Sep 29.₩0
10/2Other changePhilenergyDirector's holding rose by 5,000 sh (stock option).+5,000 sh
10/2Other changeEugeneTechnologyDirector's holding rose by 3,175 sh (stock option).+3,175 sh
All insider trades →

5% holders 188

10/2New 5%Wise Planet CompanyA major holder's stake rose from 0.00% to 69.02% (new report).69.02%
10/2New 5%S-OilA major holder's stake rose from 0.00% to 63.43% (off-market buy).63.43%
10/2Below 5%S-OilA major holder's stake fell from 63.45% to 0.00% (off-market sale).0.00%
10/2New 5%C-SiteA major holder's stake rose from 0.00% to 44.61%.44.61%
10/2New 5%NC&A major holder's stake rose from 0.00% to 44.36% (rights offering).44.36%
10/2New 5%WIZA major holder's stake rose from 0.00% to 33.89% (open-market buy).33.89%
10/2New 5%Changhae EthanolA major holder's stake rose from 0.00% to 27.11% (gift).27.11%
10/2New 5%Fine SemitechA major holder's stake rose from 0.00% to 24.95% (gift).24.95%
10/2Below 5%WIZA major holder's stake fell from 32.04% to 0.00% (open-market buy).0.00%
10/2Below 5%Changhae EthanolA major holder's stake fell from 27.11% to 0.00% (gift).0.00%
10/2AmendedNew 5%VECT RoboticsA major holder's stake rose from 0.00% to 16.05%.16.05%
10/2Below 5%Fine SemitechA major holder's stake fell from 25.13% to 0.00% (gift).0.00%
10/2New 5%C-SiteA major holder's stake rose from 0.00% to 7.58%.7.58%
10/2New 5%C-SiteA major holder's stake rose from 0.00% to 7.58%.7.58%
10/2New 5%C-SiteA major holder's stake rose from 0.00% to 7.58%.7.58%
10/2Amendedi-Scream EduA major holder's stake rose from 43.53% to 60.88% (conversion/exercise).60.88%
10/2New 5%KleanNaraA major holder's stake rose from 0.00% to 6.41% (conversion/exercise).6.41%
10/2New 5%APSA major holder's stake rose from 0.00% to 6.00%.6.00%
10/2New 5%Hanwha Machinery & Service HoldingsNational Pension Service's stake rose from 0.00% to 5.22% (share consolidation/split).5.22%
10/2New 5%PharmaResearchNational Pension Service's stake rose from 4.41% to 7.14%.7.14%
10/2New 5%Xi S&DNational Pension Service's stake rose from 4.67% to 7.37%.7.37%
10/2New 5%RF MaterialsNational Pension Service's stake rose from 4.80% to 6.20%.6.20%
10/2New 5%InBodyNational Pension Service's stake rose from 4.74% to 5.30%.5.30%
10/2New 5%OCI CompanyNational Pension Service's stake rose from 4.84% to 5.09%.5.09%
10/2New 5%Hansol TechnicsNational Pension Service's stake rose from 4.84% to 5.03%.5.03%
10/2New 5%Sunic SystemNational Pension Service's stake rose from 4.98% to 5.16%.5.16%
10/2New 5%Doosan TesnaNational Pension Service's stake rose from 4.92% to 5.10%.5.10%
10/2New 5%Hanwha General InsuranceNational Pension Service's stake rose from 4.95% to 5.05%.5.05%
10/2New 5%HansaeNational Pension Service's stake rose from 4.94% to 5.02%.5.02%
10/2New 5%HK inno.NNational Pension Service's stake rose from 4.98% to 5.03%.5.03%
10/2Mezzion PharmaA major holder's stake fell from 27.06% to 18.59% (related-party change).18.59%
10/2Below 5%BiobijouA major holder's stake fell from 6.98% to 0.00%.0.00%
10/2Woosung MaterialsA major holder's stake rose from 19.46% to 24.96% (related-party change).24.96%
10/2HantopA major holder's stake rose from 51.56% to 56.94% (open-market buy).56.94%
10/2Below 5%Hanjoo ARTA major holder's stake fell from 5.07% to 0.00% (open-market sale).0.00%
10/2Below 5%Newen AIA major holder's stake fell from 5.04% to 0.07%.0.07%
10/2GS Engineering & ConstructionNational Pension Service's stake rose from 7.82% to 12.25%.12.25%
10/2AmendedVECT RoboticsA major holder's stake fell from 16.05% to 11.67%.11.67%
10/2BinggraeNational Pension Service's stake rose from 6.09% to 9.37%.9.37%
10/2BHNational Pension Service's stake fell from 13.32% to 10.12%.10.12%
All 5% holders →

Buybacks 8

10/2TrustManyo FactorySigned a ₩5B trust contract to buy back shares.₩5B
10/2TrustJahwa ElectronicsSigned a ₩5B trust contract to buy back shares.₩5B
10/2TrustGaonchipsEnded a share buyback trust contract.₩1.3B
10/2BuybackWonpoongPlans to buy back 196,464 sh of treasury stock, Oct 6 to Dec 30.₩1B
10/2AmendedBuybackSangsanginPlans to buy back 534,188 sh of treasury stock, Oct 6 to Jan 2.₩1B
10/2TrustKorea PharmaSigned a ₩1B trust contract to buy back shares.₩1B
10/2Youngone HoldingsShare cancellation
10/2SangsanginTreasury stock acquisition

Share issues & bonds 13

10/2CBSGConversion price ₩1,140; if all converted, equal to 19.5% of shares outstanding.₩33.5B
10/2AmendedCBHwail PharmConversion price ₩8,294; if all converted, equal to 14.3% of shares outstanding.₩10B
10/2CBEnbioConversion price ₩2,082; if all converted, equal to 6.6% of shares outstanding.₩1.5B
10/2AmendedRights offeringCrowdWorksIssuing 753,579 sh of new shares, equal to 4.7% of existing shares.₩1000M
10/2CBYcchemConversion price ₩12,526; if all converted, equal to 3.8% of shares outstanding.₩10B
10/2AmendedSeoul Electronics & TelecomRights offering
10/2KS IndustryRights offering
10/2AmendedSkonec EntertainmentRights offering
10/2AmendedMsdiRights offering
10/2AmendedFreeTRights offering
10/2AmendedFocus AIRights offering
10/2AmendedFocus AIConvertible bond issue
10/2AmendedCellidRights offering

M&A & spin-offs 3

10/2AmendedIBKS No.24 Special Purpose Acquisition CompanyMerger
10/2AmendedKumyangSpin-off / split
10/2NatureandEnvironmentMerger

Exchange actions 14

10/2Sejin T.sExchange
10/2A.f.wExchange
10/2KmpharmaceuticalTrading halt
10/2Wing's FootAdministrative issue
10/2DuobackTrading halt
10/2KmpharmaceuticalExchange
10/2Bucket StudioExchange
10/2ExemSpin-off / split
10/2Inno InstrumentSpin-off / split
10/2DuobackExchange
10/2CXI Healthcare Technology GroupTrading halt
10/2Inzi Display CompanySpin-off / split
10/2Sejin T.sTrading halt
10/2A.f.wTrading halt