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Key filings, December 29, 2025

507 filings · 7 highlights
← December 26, 2025December 30, 2025 →

Supply contracts 39

12/29AmendedNexusWorth 278.9% of last year's revenue, over about 24 months.₩15.2B
12/29AmendedNamkwang Engineering & ConstructionWorth 130.6% of last year's revenue.₩151B
12/29NexusWorth 98.7% of last year's revenue, over about 36 months.₩7.5B
12/29CJ SeafoodWorth 76.4% of last year's revenue, over about 12 months.₩148B
12/29AmendedSamho DevelopmentWorth 64.7% of last year's revenue, over about 53 months.₩205B
12/29AmendedSK DiscoveryWorth 53.4% of last year's revenue, over about 37 months.₩92.5B
12/29AmendedUnisonWorth 40.4% of last year's revenue, over about 127 months.₩16.4B
12/29AmendedOrganic TEA Cosmetics Holdings CompanyWorth 30.8% of last year's revenue, over about 11 months.₩21B
12/29AmendedShinwonConstructionWorth 29.9% of last year's revenue, over about 61 months.₩41.6B
12/29AmendedSeohanWorth 23.9% of last year's revenue, over about 56 months.₩116B
12/29AmendedSFA NexelWorth 22.3% of last year's revenue, over about 52 months.₩26.4B
12/29AmendedTotal Soft BankWorth 22% of last year's revenue, over about 30 months.₩3.5B
12/29OptiCoreWorth 17.2% of last year's revenue, over about 3 months.₩4B
12/29AmendedAgent AIWorth 16.6% of last year's revenue, over about 15 months.₩3B
12/29It-ChemWorth 16.2% of last year's revenue, over about 16 months.₩10.1B
12/29TomatosystemWorth 14.7% of last year's revenue, over about 17 months.₩3.2B
12/29AmendedNanoSilikhan Advanced MaterialsWorth 13.8% of last year's revenue, over about 4 months.₩730.4M
12/29AmendedTotal Soft BankWorth 13.8% of last year's revenue, over about 30 months.₩2.2B
12/29AmendedKumyang Green PowerWorth 13.1% of last year's revenue, over about 81 months.₩31.2B
12/29AmendedEehwaConstructionWorth 12.6% of last year's revenue, over about 41 months.₩24.5B
12/29AmendedDongwonDevelopmentWorth 12.1% of last year's revenue, over about 44 months.₩50.6B
12/29AmendedYunsung F&CWorth 12% of last year's revenue, over about 32 months.₩37.5B
12/29AmendedDongbuWorth 11.8% of last year's revenue, over about 72 months.₩144B
12/29AmendedOnejoonWorth 11.6% of last year's revenue, over about 48 months.₩16.6B
12/29AmendedCK SolutionWorth 10.1% of last year's revenue.₩29.9B
12/29AmendedSamsung C&TWorth 9.5% of last year's revenue, over about 54 months.₩3.97T
12/29AmendedHanWool Materials ScienceWorth 8.3% of last year's revenue, over about 19 months.₩3.1B
12/29Temc CNSWorth 7.5% of last year's revenue, over about 1 month.₩14.5B
12/29AmendedHDC HoldingsWorth 7.5% of last year's revenue, over about 86 months.₩210B
12/29AmendedIpark Hyundai Development CompanyWorth 7.5% of last year's revenue, over about 86 months.₩210B
12/29AmendedSamil C&SWorth 6.9% of last year's revenue, over about 77 months.₩14.2B
12/29AmendedSTX Engine Co,.Worth 6.2% of last year's revenue, over about 32 months.₩33.6B
12/29Amended4by4Worth 6.1% of last year's revenue, over about 10 months.₩2.1B
12/29AmendedSAM Chun Dang PharmWorth 5.9% of last year's revenue, over about 120 months.₩7.8B
12/29AmendedWoojinWorth 5.9% of last year's revenue, over about 11 months.₩8.3B
12/29AmendedKCC Engineering & ConstructionWorth 5.8% of last year's revenue, over about 69 months.₩110B
12/29AmendedIS DongseoWorth 3.8% of last year's revenue, over about 31 months.₩76.5B
12/29NotaSingle sales/supply contract
12/29LG CNSSingle sales/supply contract

Insider trades 73

12/294by4Insider ownership report
12/29Incar Financial ServiceInsider ownership report
12/29Incar Financial ServiceInsider ownership report
12/294by4Insider ownership report
12/29AmendedTCC SteelInsider ownership report
12/29PlayDInsider ownership report
12/29UnisonInsider ownership report
12/29AprilBioInsider ownership report
12/29MIRAE ASSET Life InsuranceInsider ownership report
12/29AJU IB InvestmentInsider ownership report
12/29MgameInsider ownership report
12/29Miwon HoldingsInsider ownership report
12/29MgameInsider ownership report
12/29MgameInsider ownership report
12/29WavusInsider ownership report
12/29MgameInsider ownership report
12/29TCC SteelInsider ownership report
12/29Cafe24Insider ownership report
12/29H&SHigh TechInsider ownership report
12/29H&SHigh TechInsider ownership report
12/29TCC SteelInsider ownership report
12/29Parataxis KoreaInsider ownership report
12/29Hyundai Engineering & ConstructionInsider ownership report
12/29IBKS No.25 Special Purpose Acquisition CompanyInsider ownership report
12/29Parataxis KoreaInsider ownership report
12/29KakaoInsider ownership report
12/29OpasnetInsider ownership report
12/29VCInsider ownership report
12/29OpasnetInsider ownership report
12/29SKAI worldwideInsider ownership report
12/29Castec KoreaInsider ownership report
12/29GabiaInsider ownership report
12/29DaehanPharmaceuticalInsider ownership report
12/29YoungpoongInsider ownership report
12/29NaverInsider ownership report
12/29HuonsInsider ownership report
12/29CuroholdingsInsider ownership report
12/29HuonsInsider ownership report
12/29NaverInsider ownership report
12/29DaedongGearInsider ownership report
All insider trades →

5% holders 48

12/29AmendedNew 5%Kukdong OIL & ChemicalsA major holder's stake rose from 0.00% to 43.18% (new report).43.18%
12/29AmendedBelow 5%Kukdong OIL & ChemicalsA major holder's stake fell from 42.62% to 0.00% (related-party change).0.00%
12/29New 5%RznomicsA major holder's stake rose from 0.00% to 23.90% (new report).23.90%
12/29SKAI worldwideA major holder's stake rose from 14.80% to 34.27% (rights offering).34.27%
12/29New 5%YoungwireA major holder's stake rose from 0.00% to 7.16%.7.16%
12/29New 5%OptiCoreA major holder's stake rose from 0.00% to 6.14% (conversion/exercise).6.14%
12/29New 5%SecuLetterA major holder's stake rose from 0.00% to 6.10% (new report).6.10%
12/29New 5%GMI VentureA major holder's stake rose from 0.00% to 5.41% (conversion/exercise).5.41%
12/29Parataxis KoreaA major holder's stake rose from 49.34% to 57.67% (rights offering).57.67%
12/29SyntekaBioA major holder's stake fell from 21.66% to 15.10% (rights offering).15.10%
12/294by4A major holder's stake fell from 26.81% to 21.81% (rights offering).21.81%
12/29Below 5%SamjinfoodA major holder's stake rose from 0.00% to 4.97% (open-market sale).4.97%
12/29MDS TechA major holder's stake fell from 17.37% to 12.97% (conversion/exercise).12.97%
12/29CuroholdingsA major holder's stake rose from 61.73% to 65.36% (rights offering).65.36%
12/29EcoplasticA major holder's stake rose from 29.31% to 31.84%.31.84%
12/29AdbiotechA major holder's stake fell from 7.81% to 5.29%.5.29%
12/29Hanjin Heavy Ind. & Const. HoldingsA major holder's stake rose from 48.37% to 50.48% (related-party change).50.48%
12/29MgameA major holder's stake rose from 18.36% to 19.74% (pledge).19.74%
12/29Kukdong OIL & ChemicalsA major holder's stake rose from 8.75% to 9.98% (open-market buy).9.98%
12/29EcoGlowA major holder's stake rose from 5.95% to 7.12% (conversion/exercise).7.12%
12/29Samyung TradingA major holder's stake rose from 44.51% to 45.68% (related-party change).45.68%
12/29Kukdong OIL & ChemicalsA major holder's stake rose from 41.52% to 42.62% (related-party change).42.62%
12/29SCL ScienceA major holder's stake fell from 6.20% to 5.30% (open-market sale).5.30%
12/29T&R BiofabA major holder's stake fell from 16.04% to 15.34% (pledge).15.34%
12/29AmendedKukdong OIL & ChemicalsA major holder's stake rose from 43.18% to 43.75% (related-party change).43.75%
12/29CrowdWorksA major holder's stake fell from 18.33% to 17.85% (pledge).17.85%
12/29Seobu T&DA major holder's stake fell from 51.80% to 51.38% (conversion/exercise).51.38%
12/29GabiaA major holder's stake fell from 26.13% to 25.81% (open-market sale).25.81%
12/29DaedongGearA major holder's stake fell from 52.31% to 52.09% (related-party change).52.09%
12/29Heerim Architects & PlannersA major holder's stake rose from 18.30% to 18.45% (open-market buy).18.45%
12/29RevuA major holder's stake fell from 8.44% to 8.32%.8.32%
12/29VCA major holder's stake rose from 35.67% to 35.75% (open-market buy).35.75%
12/29Kukdong OIL & ChemicalsA major holder's stake rose from 43.75% to 43.82%.43.82%
12/29Cafe24A major holder's stake rose from 23.30% to 23.31% (related-party change).23.31%
12/29TCC SteelA major holder's stake rose from 30.88% to 30.89% (open-market buy).30.89%
12/29Leaders CosmeticsA major holder's stake fell from 28.39% to 28.39% (pledge).28.39%
12/29Incar Financial ServiceReport of 5%+ holding
12/29InBodyA major holder's stake rose from 29.09% to 29.09% (pledge).29.09%
12/29Cube EntertainmentA major holder's stake rose from 54.69% to 54.69% (pledge).54.69%
12/29MiA major holder's stake rose from 20.42% to 20.42% (pledge).20.42%
All 5% holders →

Buybacks 16

12/29DisposalVoronoiPlans to dispose of 203,401 sh of treasury stock, Dec 30 to Dec 30.₩45.6B
12/29CancellationDoubleUGamesCancels 322,438 sh, 1.50% of shares issued, on Jan 7.322,438 sh
12/29BuybackKwangmuPlans to buy back 2,675,227 sh of treasury stock, Dec 30 to Mar 27.₩5B
12/29DisposalJi-TechPlans to dispose of 1,253,800 sh of treasury stock, Dec 30 to Dec 30.₩4.1B
12/29DisposalEagon HoldingsPlans to dispose of 925,488 sh of treasury stock, Dec 30 to Dec 30.₩4B
12/29DisposalEagon IndustrialPlans to dispose of 728,271 sh of treasury stock, Dec 30 to Dec 30.₩3.5B
12/29DisposalGlobalStandardTechnologyPlans to dispose of 73,484 sh of treasury stock, Dec 29 to Jan 6.₩2B
12/29CancellationhomecastCancels 343,761 sh, 0.98% of shares issued, on Jan 5.343,761 sh
12/29DisposalSamho DevelopmentPlans to dispose of 373,459 sh of treasury stock, Dec 30 to Jan 15.₩1.4B
12/29DisposalCell Bio Human TechPlans to dispose of 71,075 sh of treasury stock, Dec 30 to Dec 30.₩570.7M
12/29DisposalKorea IndustrialPlans to dispose of 134,000 sh of treasury stock, Dec 29 to Dec 29.₩337.7M
12/29DisposalJunjin Construction & RobotPlans to dispose of 3,332 sh of treasury stock, Dec 29 to Jan 11.₩155.4M
12/29AmendedDisposalSamjin LND CompanyPlans to dispose of 172,259 sh of treasury stock, Jan 1 to Jan 31.₩143.5M
12/29DisposalWemadePlans to dispose of 4,130 sh of treasury stock, Dec 29 to Mar 24.₩70.2M
12/29Eagon HoldingsTreasury stock disposal
12/29CLIO CosmeticsTreasury stock disposal

Share issues & bonds 23

12/29AmendedBonus issueSungwon Ener TechBonus issue of new shares equal to 29.9% of existing shares.15,871,335 sh
12/29AmendedCBSGA SolutionsConversion price ₩681; if all converted, equal to 14.9% of shares outstanding.₩9B
12/29CBEMnIConversion price ₩820; if all converted, equal to 7.9% of shares outstanding.₩1.5B
12/29HanWool & JejuRights offering
12/29CJ CGVRights offering
12/29AmendedVivienRights offering
12/29OrbitechRights offering
12/29AmendedNRoboticsRights offering
12/29AmendedHyperConvertible bond issue
12/29AmendedExion Group CompanyRights offering
12/29AmendedHyperConvertible bond issue
12/29AmendedJ Steel Company HoldingsRights offering
12/29AmendedS-EnergyRights offering
12/29AmendedCellumedRights offering
12/29AmendedPeopleBioConvertible bond issue
12/29AmendedParataxis EthereumRights offering
12/29AmendedDHX CompanyRights offering
12/29CLIO CosmeticsExchangeable bond issue
12/29EBLinkedExchange price ₩2,226; if all exchanged, equal to 2.3% of shares outstanding.₩3B
12/29AmendedKoasConvertible bond issue
12/29AmendedDmoaRights offering
12/29AmendedCammSysRights offering
12/29Bucket StudioRights offering

M&A & spin-offs 7

12/29AmendedKT SkylifeSpin-off / split
12/29NRBTangible asset deal
12/29AmendedHandok Clean TechTangible asset deal
12/29AmendedKorea CircuitMerger
12/29AmendedPNC TechnologiesStake acquisition/disposal
12/29AmendedLskairobotStake acquisition/disposal
12/29AmendedExicure HitronStake acquisition/disposal

Exchange actions 6

12/29GemVax & KAELUnfaithful disclosure
12/29HanWool SemiconductorUnfaithful disclosure
12/29People & Technology MsUnfaithful disclosure
12/29Simmtech HoldingsUnfaithful disclosure
12/29KDUnfaithful disclosure
12/29Jaeyoung SolutecExchange inquiry