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Key filings, March 19, 2026

1,404 filings · 6 highlights
← March 18, 2026March 20, 2026 →

Supply contracts 7

3/19AmendedSoosan IndustriesWorth 30.5% of last year's revenue, over about 133 months.₩92.7B
3/19SensorviewWorth 16% of last year's revenue, over about 39 months.₩2.5B
3/19AmendedNamkwang Engineering & ConstructionWorth 15.6% of last year's revenue, over about 77 months.₩24.5B
3/19Seondo ElectricWorth 10.9% of last year's revenue, over about 6 months.₩2.6B
3/19Doosan Fuel CellWorth 7.4% of last year's revenue, over about 11 months.₩30.4B
3/19Doosan Fuel CellWorth 6.4% of last year's revenue, over about 251 months.₩26.4B
3/19AmendedUnisonWorth 5.8% of last year's revenue, over about 240 months.₩13.9B

Preliminary earnings 3

3/19HD Korea Shipbuilding & Offshore EngineeringPreliminary operating results
3/19HD Korea Shipbuilding & Offshore EngineeringPreliminary operating results
3/19HD Hyundai Heavy IndustriesPreliminary operating results

Insider trades 32

3/19CelltrionInsider ownership report
3/19Kyongbo PharmaceuticalInsider ownership report
3/19IokenmInsider ownership report
3/19kakaopayInsider ownership report
3/19FaduInsider ownership report
3/19FaduInsider ownership report
3/19HJ Shipbuilding & ConstructionInsider ownership report
3/19FaduInsider ownership report
3/19PimsInsider ownership report
3/19PimsInsider ownership report
3/19FaduInsider ownership report
3/19PimsInsider ownership report
3/19MekicsInsider ownership report
3/19ShinhungInsider ownership report
3/19Hanjoo Light MetalInsider ownership report
3/19Y-BiologicsInsider ownership report
3/19Hanjoo Light MetalInsider ownership report
3/19Hanjoo Light MetalInsider ownership report
3/19HLB GenexInsider ownership report
3/19Hanjoo Light MetalInsider ownership report
3/19HLB TherapeuticsInsider ownership report
3/19AmendedNaverInsider ownership report
3/19NaverInsider ownership report
3/19MobirixInsider ownership report
3/19NaverInsider ownership report
3/19iNtRON BiotechnologyInsider ownership report
3/19SensorviewInsider ownership report
3/19LiCommInsider ownership report
3/19Hyundai Engineering & ConstructionInsider ownership report
3/19SanigenInsider ownership report
3/19NatureandEnvironmentInsider ownership report
3/19CymechsInsider ownership report

5% holders 43

3/19New 5%IokenmA major holder's stake rose from 0.00% to 11.71% (share lending).11.71%
3/19AmendedNew 5%CelemicsA major holder's stake rose from 1.16% to 12.05% (open-market buy).12.05%
3/19New 5%Kanaph TherapeuticsA major holder's stake rose from 0.00% to 6.95% (new report).6.95%
3/19AmendedCelemicsA major holder's stake rose from 12.05% to 23.11% (rights offering).23.11%
3/19New 5%DAE Dong SteelA major holder's stake rose from 4.98% to 5.16%.5.16%
3/19Satoshi HoldingsA major holder's stake rose from 43.47% to 47.23% (conversion/exercise).47.23%
3/19CellumedA major holder's stake fell from 14.28% to 11.05% (pledge).11.05%
3/19Below 5%Kanaph TherapeuticsA major holder's stake rose from 0.00% to 2.89% (open-market sale).2.89%
3/19Exicure HitronA major holder's stake rose from 18.15% to 20.98% (related-party change).20.98%
3/19Below 5%TS NexgenA major holder's stake fell from 3.82% to 1.51%.1.51%
3/19AmendedNatureandEnvironmentA major holder's stake rose from 10.75% to 11.70% (open-market buy).11.70%
3/19JetemaA major holder's stake fell from 30.59% to 29.67% (conversion/exercise).29.67%
3/19XplusA major holder's stake fell from 41.91% to 41.15% (related-party change).41.15%
3/19Below 5%WISEnutA major holder's stake fell from 5.11% to 4.50%.4.50%
3/19Hansol TechnicsA major holder's stake rose from 20.67% to 21.11% (stock option).21.11%
3/19Theragen EtexA major holder's stake rose from 14.02% to 14.44% (open-market buy).14.44%
3/19HLB GenexA major holder's stake rose from 39.16% to 39.58% (conversion/exercise).39.58%
3/19The LEADA major holder's stake rose from 40.34% to 40.72% (pledge).40.72%
3/19iWINA major holder's stake rose from 29.24% to 29.54% (open-market buy).29.54%
3/19Hanjoo Light MetalA major holder's stake rose from 12.13% to 12.41% (open-market buy).12.41%
3/19EM-Tech.A major holder's stake fell from 14.93% to 14.70% (share lending).14.70%
3/19HimsA major holder's stake rose from 31.49% to 31.71%.31.71%
3/19PimsA major holder's stake rose from 43.04% to 43.23% (related-party change).43.23%
3/19LB InvestmentA major holder's stake rose from 79.51% to 79.68% (conversion/exercise).79.68%
3/19SanigenA major holder's stake rose from 33.12% to 33.28% (open-market buy).33.28%
3/19Y-BiologicsA major holder's stake fell from 30.79% to 30.66%.30.66%
3/19Fine M-TecA major holder's stake fell from 27.49% to 27.45% (pledge).27.45%
3/19RevuA major holder's stake fell from 57.09% to 57.07%.57.07%
3/19CJ FreshwayA major holder's stake rose from 47.89% to 47.90% (related-party change).47.90%
3/19Poongsan HoldingsA major holder's stake rose from 48.74% to 48.75%.48.75%
3/19G2gbioReport of 5%+ holding
3/19Samyang BiopharmA major holder's stake rose from 46.39% to 46.39% (pledge).46.39%
3/19Samyang HoldingsA major holder's stake rose from 41.80% to 41.80% (pledge).41.80%
3/19SD BiosensorA major holder's stake rose from 71.91% to 71.91%.71.91%
3/19Sangsangininvestment&securitiesA major holder's stake rose from 65.51% to 65.51% (pledge).65.51%
3/19KoreaInformation&CommunicationA major holder's stake rose from 82.99% to 82.99% (pledge).82.99%
3/19SbsungboA major holder's stake rose from 48.62% to 48.62%.48.62%
3/19Aekyung ChemicalA major holder's stake rose from 62.40% to 62.40% (pledge).62.40%
3/19AK HoldingsA major holder's stake rose from 65.24% to 65.24% (stock option).65.24%
3/19Hankook & CompanyReport of 5%+ holding
All 5% holders →

Buybacks 11

3/19TrustOcean In WSigned a ₩2B trust contract to buy back shares.₩2B
3/19TrustPlumb FastEnded a share buyback trust contract.₩1B
3/19Polaris AI PharmaShare cancellation
3/19Polaris OfficeShare cancellation
3/19Polaris UNOShare cancellation
3/19Polaris AIShare cancellation
3/19AmendedBioSmartShare cancellation
3/19ICDShare cancellation
3/19Samyang KCIShare cancellation
3/19HumasisShare cancellation
3/19AmendedDisposalAsia Pacific Satellite lnc.Treasury stock disposal

Share issues & bonds 13

3/19AmendedCapital reductionN CitronCapital reduction of 67%.67%
3/19AmendedCBVina TechConversion price ₩147,686; if all converted, equal to 4% of shares outstanding.₩41B
3/19AmendedInkredibleBuzzRights offering
3/19JntcRights offering
3/19Hanwha OceanRights offering
3/19Hanwha OceanRights offering
3/19BillionsConvertible bond issue
3/19AmendedMoadataRights offering
3/19BillionsRights offering
3/19EBMH MaterialsExchange price ₩3,793; if all exchanged, equal to 4.2% of shares outstanding.₩4.1B
3/19AmendedHD Construction EquipmentCapital reduction
3/19AmendedARIBIO HoldingsConvertible bond issue
3/19AribiolabRights offering

M&A & spin-offs 4

3/19ARIBIO HoldingsA ₩15.3B deal, equal to 10.8% of total assets.₩15.3B
3/19AmendedModa-InnoChipsMerger
3/19AmendedModa-InnoChipsMerger
3/19AmendedModa-InnoChipsMerger

Exchange actions 8

3/19TS NexgenExchange
3/19TS NexgenTrading halt
3/19Heng Sheng Holding Group CompanyTrading halt
3/19AmendedKEM TechSpin-off / split
3/19JK SynapSpin-off / split
3/19Oneul E&MTrading halt
3/19GeneOne Life ScienceUnfaithful disclosure
3/19Hanon SystemsUnfaithful disclosure