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Key filings, April 13, 2026

363 filings · 6 highlights
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Supply contracts 18

4/13AmendedSphereWorth 121.5% of last year's revenue, over about 7 months.₩3.1B
4/13AscendioWorth 50.9% of last year's revenue, over about 13 months.₩3B
4/13AmendedKorea Electronic Power Industrial DevelopmentWorth 22.5% of last year's revenue, over about 153 months.₩89B
4/13HD-Hyundai Marine EngineWorth 21.3% of last year's revenue, over about 25 months.₩85.9B
4/13SI ResourcesWorth 21% of last year's revenue, over about 2 months.₩4.4B
4/13C&G Hi TechWorth 19.4% of last year's revenue, over about 8 months.₩38.1B
4/13UnichemWorth 17.7% of last year's revenue, over about 7 months.₩18.8B
4/13FaduWorth 16.4% of last year's revenue, over about 6 months.₩15.2B
4/13YCWorth 15.5% of last year's revenue, over about 9 months.₩42.2B
4/13Nara Space TechnologyWorth 14.9% of last year's revenue, over about 29 months.₩2B
4/13Systems Technology IncorporatedWorth 12% of last year's revenue, over about 8 months.₩39.5B
4/13AmendedSebo Manufacturing EngineeringWorth 9.5% of last year's revenue, over about 18 months.₩75B
4/13LSWorth 3.4% of last year's revenue, over about 9 months.₩170B
4/13LS ElectricWorth 3.4% of last year's revenue, over about 9 months.₩170B
4/13DawonsysSupply contract terminated
4/13AmendedIteyesSingle sales/supply contract
4/13DL HoldingsSupply contract terminated
4/13DL E&CSupply contract terminated

Preliminary earnings 3

4/13Korean AIR LinesOperating profit ₩517B, up 47.3% YoY. Revenue ₩4.52T, up 14.1% YoY.₩517B
4/13HANJIN LogisticsOperating profit ₩16.9B, down 38.1% YoY. Revenue ₩770B, up 5.6% YoY.₩16.9B
4/13MecaroPreliminary operating results

Insider trades 55

4/13MobirixInsider ownership report
4/13Inventage LabInsider ownership report
4/13TPInsider ownership report
4/13Advanced Nano ProductsInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Seojin SystemInsider ownership report
4/13Onconic TherapeuticsInsider ownership report
4/13DYDInsider ownership report
4/13LS ElectricInsider ownership report
4/13Wemade PlayInsider ownership report
4/13A Plus Asset AdvisorInsider ownership report
4/13Wemade PlayInsider ownership report
4/13SJG SejongInsider ownership report
4/13H&SHigh TechInsider ownership report
4/13MintechInsider ownership report
4/13Charm EngineeringInsider ownership report
4/13Bohae BreweryInsider ownership report
4/13Daeduck ElectronicsInsider ownership report
4/13Bohae BreweryInsider ownership report
4/13SSRInsider ownership report
4/13Charm EngineeringInsider ownership report
4/13TomatosystemInsider ownership report
4/13ASTechInsider ownership report
4/13YuhanInsider ownership report
4/13IntopsInsider ownership report
4/13CurocellInsider ownership report
4/13YuhanInsider ownership report
4/13YuhanInsider ownership report
4/13NamsungInsider ownership report
4/13NamsungInsider ownership report
4/13YuhanInsider ownership report
4/13YuhanInsider ownership report
4/13YuhanInsider ownership report
4/13CurocellInsider ownership report
4/13CurocellInsider ownership report
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5% holders 38

4/13New 5%ApactA major holder's stake rose from 0.00% to 55.33%.55.33%
4/13New 5%NamsungA major holder's stake rose from 0.00% to 37.72% (open-market buy).37.72%
4/13Below 5%NamsungA major holder's stake fell from 36.97% to 0.00% (gift).0.00%
4/13New 5%MoadataA major holder's stake rose from 0.00% to 14.48% (conversion/exercise).14.48%
4/13New 5%IMTA major holder's stake rose from 0.00% to 9.56%.9.56%
4/13New 5%PavonineA major holder's stake rose from 0.00% to 7.50% (new report).7.50%
4/13New 5%AsiclandA major holder's stake rose from 0.00% to 6.91%.6.91%
4/13New 5%IMTA major holder's stake rose from 0.00% to 5.47%.5.47%
4/13Below 5%MobirixA major holder's stake fell from 9.89% to 0.00% (open-market sale).0.00%
4/13DYDA major holder's stake rose from 17.26% to 24.22% (off-market sale).24.22%
4/13Below 5%WaviceA major holder's stake rose from 0.00% to 4.83% (new report).4.83%
4/13DYDA major holder's stake rose from 28.52% to 31.56% (off-market buy).31.56%
4/13SolumA major holder's stake fell from 35.27% to 32.57%.32.57%
4/13LS ElectricA major holder's stake rose from 47.47% to 48.47% (related-party change).48.47%
4/13Hansol ChemicalA major holder's stake fell from 13.84% to 13.09% (gift).13.09%
4/13LunitA major holder's stake rose from 10.36% to 11.08% (stock option).11.08%
4/13AmendedSK eternixA major holder's stake fell from 43.86% to 43.15% (open-market sale).43.15%
4/13Daeduck ElectronicsA major holder's stake fell from 32.76% to 32.16% (open-market sale).32.16%
4/13SSRA major holder's stake rose from 47.33% to 47.74% (open-market buy).47.74%
4/13ObigoA major holder's stake rose from 31.65% to 31.91% (open-market buy).31.91%
4/13Seojin SystemA major holder's stake fell from 36.26% to 36.12% (stock option).36.12%
4/13Samsung Electronics Co,A major holder's stake fell from 19.83% to 19.70% (related-party change).19.70%
4/13Inventage LabA major holder's stake fell from 13.09% to 12.99% (related-party change).12.99%
4/13Coreline SoftA major holder's stake rose from 22.04% to 22.13% (stock option).22.13%
4/13CurocellA major holder's stake fell from 30.89% to 30.80% (stock option).30.80%
4/13The Asia Business DailyA major holder's stake rose from 45.67% to 45.75% (related-party change).45.75%
4/13ApactA major holder's stake fell from 55.38% to 55.33%.55.33%
4/13Woori-NetA major holder's stake rose from 26.31% to 26.31% (share lending).26.31%
4/13SKA major holder's stake rose from 25.45% to 25.45%.25.45%
4/13WemadeA major holder's stake rose from 39.51% to 39.51% (pledge).39.51%
4/13SolumA major holder's stake rose from 23.02% to 23.02%.23.02%
4/13A Plus Asset AdvisorA major holder's stake rose from 18.05% to 18.05%.18.05%
4/13LaseroptekA major holder's stake rose from 22.56% to 22.56% (pledge).22.56%
4/13InsanA major holder's stake rose from 25.51% to 25.51% (share lending).25.51%
4/13Charm EngineeringA major holder's stake rose from 60.82% to 60.82%.60.82%
4/13Daesung Hi-TechA major holder's stake rose from 45.38% to 45.38% (pledge).45.38%
4/13TYMA major holder's stake rose from 30.69% to 30.69% (share lending).30.69%
4/13SillaA major holder's stake rose from 64.42% to 64.42% (share lending).64.42%

Buybacks 6

4/13AmendedBuybackDoosan EnerbilityPlans to buy back 1,383,680 sh of treasury stock, Apr 1 to Jun 30.₩130B
4/13TrustDongjin SemichemEnded a share buyback trust contract.₩20B
4/13TrustSangsanginEnded a share buyback trust contract.₩2B
4/13TrustSM Life Design GroupEnded a share buyback trust contract.₩1.1B
4/13TrustUbionSigned a ₩600M trust contract to buy back shares.₩600M
4/13SM Life Design GroupShare cancellation

Share issues & bonds 15

4/13AmendedRights offeringRftechIssuing 4,291,845 sh of new shares, equal to 13.4% of existing shares.₩7B
4/13Rights offeringAprogen BiologicsIssuing 592,593 sh of new shares, equal to 0.3% of existing shares.₩2B
4/13Guyoung TechnologyRights offering
4/13AprogenRights offering
4/13Hankuk CarbonRights offering
4/13AmendedNext Entertainment WorldConvertible bond issue
4/13AmendedSungho ElectronicsConvertible bond issue
4/13AmendedSungho ElectronicsBond with warrants issue
4/13AmendedGeneOne Life ScienceConvertible bond issue
4/13EOFlowRights offering
4/13AmendedKB Star ReitRights offering
4/13Hansol HoldingsRights offering
4/13Hansol HoldingsRights offering
4/13Hansol TechnicsRights offering
4/13Hansol TechnicsRights offering

M&A & spin-offs 7

4/13AmendedKolonMerger
4/13Ildong HoldingsMerger
4/13AmendedKolon IndustriesMerger
4/13IL Dong PharmaceuticalMerger
4/13AmendedCosmax NBTMerger
4/13Hansol HoldingsStake acquisition/disposal
4/13Hansol TechnicsStake acquisition/disposal

Exchange actions 21

4/13Sungwon Ener TechTrading halt
4/13MedicoxTrading halt
4/13MedicoxExchange
4/13Jeil M&SExchange
4/13DawonsysTrading halt
4/13DawonsysExchange
4/13KDTrading halt
4/13KDExchange
4/13Pureun Savings BankTrading halt
4/13PhionxExchange inquiry
4/13AstaTrading halt
4/13AstaExchange
4/13Pureun Savings BankExchange
4/13UnisonExchange
4/13Samyung ENCExchange
4/13AmendedHyperUnfaithful disclosure
4/13KC Green HoldingsExchange
4/13Dynamic DesignExchange
4/13THE Willbes &Exchange
4/13STXExchange
4/13Daeho ALExchange