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Key filings, April 1, 2026

794 filings · 9 highlights
← March 31, 2026April 2, 2026 →

Supply contracts 21

4/1AmendedHanwha SystemsWorth 67.9% of last year's revenue.₩1.12T
4/1SeoulAuctionCo.Ltd..Worth 29.4% of last year's revenue, over about 1 month.₩6B
4/1AmendedT-RoboticsWorth 29.4% of last year's revenue, over about 44 months.₩16.7B
4/1Paratech CompanyWorth 26.6% of last year's revenue, over about 33 months.₩46.3B
4/1Openedges TechnologyWorth 21.7% of last year's revenue, over about 36 months.₩3.5B
4/1Qualitas SemiconductorWorth 21.2% of last year's revenue, over about 12 months.₩1.3B
4/1AmendedT-RoboticsWorth 18.4% of last year's revenue, over about 30 months.₩12.3B
4/1Hanwha AerospaceWorth 18% of last year's revenue, over about 91 months.₩2.02T
4/1AmendedSensorviewWorth 16% of last year's revenue, over about 39 months.₩2.5B
4/1Namkwang Engineering & ConstructionWorth 13.2% of last year's revenue.₩47.2B
4/1IVIM TechnologyWorth 12.3% of last year's revenue, over about 2 months.₩538.5M
4/1AmendedHJ Shipbuilding & ConstructionWorth 11.1% of last year's revenue.₩181B
4/1AmendedSensorviewWorth 9% of last year's revenue, over about 51 months.₩1.4B
4/1InnogeneWorth 5.4% of last year's revenue, over about 2 months.₩441.6M
4/1AmendedKye-Ryong Construction IndustrialWorth 4.2% of last year's revenue, over about 29 months.₩124B
4/1AmendedDL E&CWorth 3.7% of last year's revenue.₩326B
4/1Samsung Heavy IndustriesWorth 3.2% of last year's revenue, over about 38 months.₩342B
4/1Hanwha AerospaceWorth 3% of last year's revenue, over about 91 months.₩341B
4/1LG CNSWorth 3% of last year's revenue, over about 111 months.₩182B
4/1AmendedmPlusSupply contract terminated
4/1LG CNSSingle sales/supply contract

Preliminary earnings 4

4/1KIAPreliminary operating results
4/1Hyundai MotorPreliminary operating results
4/1Lotte Tour DevelopmentPreliminary operating results
4/1KG MobilityPreliminary operating results

Insider trades 121

4/1HD Hyundai Heavy IndustriesInsider ownership report
4/1SimpacInsider ownership report
4/1HD Korea Shipbuilding & Offshore EngineeringInsider ownership report
4/1Sungwon Ener TechInsider ownership report
4/1EehwaConstructionInsider ownership report
4/1MIRAE ASSET Life InsuranceInsider ownership report
4/1Shinhan 17th Special Purpose Acquisition CompanyInsider ownership report
4/1Ecopro BMInsider ownership report
4/1HanWool SemiconductorInsider ownership report
4/1H&SHigh TechInsider ownership report
4/1RftechInsider ownership report
4/1H&SHigh TechInsider ownership report
4/1HanaMicronInsider ownership report
4/1Shinhan 17th Special Purpose Acquisition CompanyInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1FaduInsider ownership report
4/1HybeInsider ownership report
4/1FaduInsider ownership report
4/1Yuanta Securities KoreaInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1SK SquareInsider ownership report
4/1FaduInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1CowayInsider ownership report
4/1Global Tax FreeInsider ownership report
4/1SeersInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1NRBInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1Seoul Guarantee Insurance CompanyInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1Cowin RoboticsInsider ownership report
4/1KohYoungTechnologyInsider ownership report
4/1LigaChem BiosciencesInsider ownership report
All insider trades →

5% holders 226

4/1Below 5%RevuA major holder's stake fell from 65.15% to 0.00%.0.00%
4/1New 5%MezooA major holder's stake rose from 0.00% to 40.89%.40.89%
4/1New 5%Hanmi ScienceA major holder's stake rose from 0.00% to 13.43% (open-market buy).13.43%
4/1New 5%HanpassA major holder's stake rose from 0.00% to 13.16% (new report).13.16%
4/1EehwaConstructionA major holder's stake rose from 47.05% to 69.52%.69.52%
4/1New 5%Shinhan 17th Special Purpose Acquisition CompanyA major holder's stake rose from 0.00% to 10.66%.10.66%
4/1Below 5%Hanmi ScienceA major holder's stake fell from 18.97% to 0.00% (share lending).0.00%
4/1RftechA major holder's stake rose from 15.33% to 33.65% (rights offering).33.65%
4/1New 5%VictekA major holder's stake rose from 0.00% to 5.55% (new report).5.55%
4/1New 5%RecensMedicalA major holder's stake rose from 0.00% to 5.26%.5.26%
4/1New 5%DaejooElectronicMaterialsNational Pension Service's stake rose from 4.92% to 10.04%.10.04%
4/1New 5%SNTEnergyNational Pension Service's stake rose from 4.66% to 5.18%.5.18%
4/1New 5%AmotechNational Pension Service's stake rose from 4.76% to 5.24%.5.24%
4/1New 5%Samwha CapacitorNational Pension Service's stake rose from 4.67% to 5.15%.5.15%
4/1New 5%CmtxNational Pension Service's stake rose from 4.59% to 5.03%.5.03%
4/1New 5%SupremaNational Pension Service's stake rose from 4.86% to 5.26%.5.26%
4/1New 5%PSKA major holder's stake rose from 4.93% to 5.30%.5.30%
4/1New 5%Daechang ForgingNational Pension Service's stake rose from 4.94% to 5.20%.5.20%
4/1New 5%OliX PharmaceuticalsNational Pension Service's stake rose from 4.81% to 5.04%.5.04%
4/1New 5%IS DongseoNational Pension Service's stake rose from 4.98% to 5.18%.5.18%
4/1New 5%Dongkuk Steel MillNational Pension Service's stake rose from 4.96% to 5.12%.5.12%
4/1New 5%Daehan ShipbuildingNational Pension Service's stake rose from 4.85% to 5.01%.5.01%
4/1New 5%PSK HoldingsNational Pension Service's stake rose from 4.99% to 5.13%.5.13%
4/1New 5%RznomicsNational Pension Service's stake rose from 4.93% to 5.04%.5.04%
4/1New 5%HMMNational Pension Service's stake rose from 4.91% to 5.01%.5.01%
4/1New 5%3billionNational Pension Service's stake rose from 4.98% to 5.06%.5.06%
4/1New 5%Hansol IONESNational Pension Service's stake rose from 4.96% to 5.03%.5.03%
4/1New 5%SK DiscoveryNational Pension Service's stake rose from 4.97% to 5.04%.5.04%
4/1New 5%Kona INational Pension Service's stake rose from 4.98% to 5.03%.5.03%
4/1New 5%YoungpoongNational Pension Service's stake rose from 4.97% to 5.01%.5.01%
4/1New 5%NICE Information ServiceNational Pension Service's stake rose from 4.98% to 5.00%.5.00%
4/1New 5%Fine M-TecNational Pension Service's stake rose from 4.99% to 5.00%.5.00%
4/1AmendedXcell TherapeuticsA major holder's stake fell from 29.39% to 19.54% (rights offering).19.54%
4/1Below 5%CosLeaguer GlobalA major holder's stake fell from 6.41% to 0.00%.0.00%
4/1Hanmi ScienceA major holder's stake fell from 18.97% to 13.43% (open-market buy).13.43%
4/1AmendedOpenedges TechnologyA major holder's stake fell from 23.63% to 18.38% (open-market sale).18.38%
4/1Seoul Guarantee Insurance CompanyA major holder's stake fell from 83.85% to 79.56%.79.56%
4/1ParadiseNational Pension Service's stake rose from 7.13% to 11.37%.11.37%
4/1Sungwon Ener TechA major holder's stake fell from 23.81% to 19.62% (related-party change).19.62%
4/1Below 5%Samil C&SA major holder's stake fell from 8.05% to 3.89% (related-party change).3.89%
All 5% holders →

Buybacks 13

4/1AmendedDisposalHybePlans to dispose of 101,619 sh of treasury stock, Apr 3 to Apr 30.₩30.4B
4/1TrustKidariStudioSigned a ₩3.1B trust contract to buy back shares.₩3.1B
4/1TrustLindeman Asia InvestmentSigned a ₩500M trust contract to buy back shares.₩500M
4/1DisposalIntellian TechnologiesPlans to dispose of 915 sh of treasury stock, Apr 1 to Apr 2.₩101.5M
4/1MonitorappShare cancellation
4/1UangelShare cancellation
4/1JincostechShare cancellation
4/1JincostechTreasury stock acquisition
4/1AmendedLindeman Asia InvestmentBuyback trust contract
4/1AmendedNamsungTreasury stock disposal
4/1AmendedHybeTreasury stock disposal
4/1Doosan EnerbilityTreasury stock acquisition
4/1HybeTreasury stock disposal

Share issues & bonds 17

4/1CBIMTConversion price ₩12,661; if all converted, equal to 10.7% of shares outstanding.₩12B
4/1AmendedRights offeringOpenedges TechnologyIssuing 1,145,278 sh of new shares, equal to 4.4% of existing shares.₩20B
4/1Rights offeringZGOO HoldingsIssuing 300,000 sh of new shares, equal to 1.9% of existing shares.₩5.9B
4/1AmendedSK GASRights offering
4/1AmendedHybeRights offering
4/1HybeRights offering
4/1AmendedHD HyundaiExchangeable bond issue
4/1Samick Musical InstrumentsRights offering
4/1AmendedSK GASRights offering
4/1AmendedSK GASRights offering
4/1AmendedB2EnRights offering
4/1MoadataConvertible bond issue
4/1AmendedChoolip & SciencesRights offering
4/1Dongsung PharmaceuticalConvertible bond issue
4/1AmendedEBHD Korea Shipbuilding & Offshore EngineeringExchange price ₩523,125; if all exchanged, equal to 4.3% of shares outstanding.₩2.37T
4/1AmendedMgen SolutionsConvertible bond issue
4/1CelemicsRights offering

M&A & spin-offs 7

4/1AmendedChoolip & SciencesA ₩17.2B deal, equal to 53.8% of total assets.₩17.2B
4/1EverybotA ₩25.8B deal, equal to 23.4% of total assets.₩25.8B
4/1ZGOO HoldingsA ₩8.4B deal, equal to 16% of total assets.₩8.4B
4/1KG Eco SolutionStake acquisition/disposal
4/1AmendedDhautonexTangible asset deal
4/1KG DongbusteelStake acquisition/disposal
4/1AmendedSynergy InnovationStake acquisition/disposal

Exchange actions 5

4/1AmendedEehwaConstructionTrading halt
4/1EehwaConstructionTrading halt
4/1HLB innoVationSpin-off / split
4/1EehwaConstructionExchange
4/1Daeho ALExchange