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Key filings, August 31, 2026

612 filings · 10 highlights
← August 28, 2026September 1, 2026 →

Supply contracts 48

8/31AmendedCnplusWorth 74.4% of last year's revenue.₩35.4B
8/31AmendedIntellian TechnologiesWorth 64.6% of last year's revenue, over about 59 months.₩71.1B
8/31SK oceanplantWorth 61.4% of last year's revenue, over about 46 months.₩593B
8/31AmendedPhilenergyWorth 50.7% of last year's revenue, over about 36 months.₩99.8B
8/31AmendedIS DongseoWorth 49.8% of last year's revenue, over about 39 months.₩480B
8/31AmendedE8Worth 35.5% of last year's revenue, over about 13 months.₩811.8M
8/31AmendedMediaZenWorth 35% of last year's revenue, over about 17 months.₩4.5B
8/31AmendedHS HwasungWorth 26.5% of last year's revenue.₩163B
8/31SeohanWorth 25.6% of last year's revenue, over about 50 months.₩165B
8/31AmendedVitzroSys.Worth 22.6% of last year's revenue, over about 13 months.₩5.8B
8/31AmendedSamho DevelopmentWorth 21.9% of last year's revenue, over about 57 months.₩79.3B
8/31HD-Hyundai Marine EngineWorth 21.6% of last year's revenue, over about 23 months.₩87.1B
8/31FiberproWorth 21.4% of last year's revenue, over about 11 months.₩9.3B
8/31AmendedGeumhwa PSCWorth 19.4% of last year's revenue, over about 54 months.₩45.8B
8/31VirnectWorth 17.7% of last year's revenue, over about 4 months.₩549.5M
8/31AmendedGnCenergyWorth 17% of last year's revenue, over about 35 months.₩25.2B
8/31AmendedKonan Technology INWorth 16.1% of last year's revenue, over about 13 months.₩4.2B
8/31Wooyang HCWorth 15.7% of last year's revenue, over about 14 months.₩15.9B
8/31AmendedAgent AIWorth 14.4% of last year's revenue, over about 8 months.₩1.7B
8/31AmendedLS Marine SolutionWorth 13.4% of last year's revenue, over about 17 months.₩17.5B
8/31LincsolutionWorth 13% of last year's revenue, over about 14 months.₩1.7B
8/31AmendedNableWorth 12.1% of last year's revenue, over about 69 months.₩1.5B
8/31AmendedKumyang Green PowerWorth 12% of last year's revenue, over about 31 months.₩31.7B
8/31AmendedYooshin EngineeringWorth 11.8% of last year's revenue, over about 17 months.₩40B
8/31AmendedNamkwang Engineering & ConstructionWorth 10.8% of last year's revenue, over about 79 months.₩25.7B
8/31AmendedSamsung Heavy IndustriesWorth 10.8% of last year's revenue, over about 54 months.₩640B
8/31AmendedSamsung E&AWorth 10.1% of last year's revenue, over about 54 months.₩1.01T
8/31AmendedHyundai Engineering & ConstructionWorth 9.9% of last year's revenue, over about 94 months.₩1.66T
8/31AmendedDong-Ah Geological Engineering CompanyWorth 9.6% of last year's revenue.₩33.3B
8/31AmendedDong-Ah Geological Engineering CompanyWorth 9.5% of last year's revenue, over about 18 months.₩32.9B
8/31AmendedCnt85Worth 9.2% of last year's revenue, over about 24 months.₩4.6B
8/31AmendedKolonWorth 8.9% of last year's revenue, over about 55 months.₩299B
8/31AmendedKolonGlobalWorth 8.9% of last year's revenue, over about 55 months.₩299B
8/31AmendedSeondo ElectricWorth 8.3% of last year's revenue.₩2B
8/31AmendedAbClonWorth 7.5% of last year's revenue, over about 7 months.₩355.8M
8/31AmendedKolonWorth 7.2% of last year's revenue, over about 62 months.₩241B
8/31AmendedKolonGlobalWorth 7.2% of last year's revenue, over about 62 months.₩241B
8/31AmendedHLB TherapeuticsWorth 6.9% of last year's revenue, over about 10 months.₩3.8B
8/31AmendedDaewoo Engineering & ConstructionWorth 6.5% of last year's revenue, over about 42 months.₩560B
8/31HD-Hyundai Marine EngineWorth 5.6% of last year's revenue, over about 35 months.₩22.7B
All supply contracts →

Insider trades 38

8/31SaleJS LinkOutside director sold 20,879 sh on the market at an average ₩34,123, Aug 24–27.₩712.4M
8/31BuySejong Telecom10%+ shareholder bought 78,000 sh on the market at an average ₩8,293, Aug 24–Sep 2.₩646.8M
8/31BuyIncar Financial ServiceCEO bought 31,106 sh on the market at an average ₩10,726, Aug 24–28.₩333.6M
8/31BuySK biopharmaceuticalsPresident bought 2,000 sh on the market at an average ₩90,898, Aug 31.₩181.8M
8/31BuyEnexDirector bought 43,233 sh on the market at an average ₩2,289, Aug 31.₩99M
8/31BuyDawon Cable10%+ shareholder bought 10,000 sh on the market at an average ₩9,759, Aug 31.₩97.6M
8/31BuyChonbangAn insider bought 2,729 sh on the market at an average ₩33,630, Aug 26–28.₩91.8M
8/31BuyQuadMedicineDirector bought 10,000 sh on the market at an average ₩5,347, Aug 31.₩53.5M
8/31AmendedBuyPimsCEO bought 45,000 sh on the market at an average ₩1,042, Aug 28.₩46.9M
8/31BuyPimsCEO bought 45,000 sh on the market at an average ₩1,042, Aug 28.₩46.9M
8/31BuySK biopharmaceuticalsAn insider bought 500 sh on the market at an average ₩88,958, Aug 31.₩44.5M
8/31BuyHNK Machine ToolDirector bought 13,527 sh on the market at an average ₩2,778, Aug 27–28.₩37.6M
8/31BuyBiotoxtechCEO bought 13,865 sh on the market at an average ₩2,419, Aug 26–28.₩33.5M
8/31BuyHNK Machine ToolDirector bought 11,750 sh on the market at an average ₩2,762, Aug 26–28.₩32.5M
8/31BuyHCTPresident bought 10,000 sh on the market at an average ₩3,067, Aug 31.₩30.7M
8/31BuyHansaemkCEO bought 20,199 sh on the market at an average ₩1,455, Aug 26–28.₩29.4M
8/31BuyBIO Port KoreaPresident bought 5,500 sh on the market at an average ₩5,105, Aug 25–31.₩28.1M
8/31BuyGemVax & KAELPresident bought 2,030 sh on the market at an average ₩10,820, Aug 31.₩22M
8/31BuyPlateerExecutive bought 7,279 sh on the market at an average ₩2,993, Jul 29–Aug 26.₩21.8M
8/31SaleSamsung Electronics Co,Executive sold 80 sh on the market at an average ₩249,000, Aug 27.₩19.9M
8/31BuyHansaemkDirector bought 7,520 sh on the market at an average ₩1,425, Aug 31–Sep 1.₩10.7M
8/31BuyDaehanPharmaceuticalChairman bought 200 sh on the market at an average ₩26,000, Aug 25.₩5.2M
8/31AmendedOther changeQuadMedicineDirector's holding rose by 0 sh (stock option, other change).0 sh
8/31Other changeKCCEO's holding rose by 914,704 sh (other change).+914,704 sh
8/31Other changeQuadMedicineDirector's holding rose by 0 sh (stock option, other change).0 sh
8/31Other changeAtlas LinkAn insider's holding fell by 10,201,074 sh (share consolidation/split).-10,201,074 sh
8/31Other changeKCDirector's holding fell by 661,232 sh (gift).-661,232 sh
8/31Other changeDaehyunCEO's holding rose by 150,000 sh (off-market buy).+150,000 sh
8/31Other changeDaehyunAn insider's holding fell by 150,000 sh (off-market sale).-150,000 sh
8/31Other changeS.BiomedicsCEO's holding fell by 8,000 sh (off-market sale, conversion/exercise).-8,000 sh
8/31BuyDB SecuritiesLargest shareholder group bought 101,012 sh on the market, Aug 26–Sep 1.₩0
8/31Other changeFinger Story10%+ shareholder's holding rose by 764,456 sh (other change, rights offering).+764,456 sh
8/31BuyIntelligent Digital Integrated SecurityAn insider bought 19,029 sh on the market, Aug 24–28.₩0
8/31Other changeCXI Healthcare Technology Group10%+ shareholder's holding rose by 1,040,000 sh (share consolidation/split, rights offering).+1,040,000 sh
8/31Other changeCXI Healthcare Technology Group10%+ shareholder's holding rose by 2,400,000 sh (rights offering).+2,400,000 sh
8/31Other changeCXI Healthcare Technology GroupCEO's holding fell by 844,248 sh (share consolidation/split, rights offering).-844,248 sh
8/31Other changeDMSDirector's holding rose by 3,000 sh (new report).+3,000 sh
8/31Other changeHanwha VisionExecutive's holding rose by 200 sh (new report).+200 sh

5% holders 42

8/31New 5%KCA major holder's stake rose from 0.00% to 51.12% (gift).51.12%
8/31Below 5%KCA major holder's stake fell from 51.12% to 0.00% (gift).0.00%
8/31New 5%CXI Healthcare Technology GroupA major holder's stake rose from 0.00% to 21.18% (rights offering).21.18%
8/31New 5%ObigoA major holder's stake rose from 0.00% to 5.63% (open-market buy).5.63%
8/31New 5%DuChemBioA major holder's stake rose from 0.00% to 5.04% (open-market buy).5.04%
8/31CXI Healthcare Technology GroupA major holder's stake rose from 10.20% to 24.18% (rights offering).24.18%
8/31CXI Healthcare Technology GroupA major holder's stake fell from 46.03% to 37.44% (rights offering).37.44%
8/31Finger StoryA major holder's stake rose from 56.82% to 62.41% (rights offering).62.41%
8/31HLB PharmaceuticalA major holder's stake rose from 21.74% to 24.31% (rights offering).24.31%
8/31Yellow Balloon TourA major holder's stake rose from 14.52% to 15.77% (conversion/exercise).15.77%
8/31DY DeokyangA major holder's stake rose from 43.63% to 44.66% (open-market buy).44.66%
8/31Incar Financial ServiceA major holder's stake rose from 6.41% to 7.27%.7.27%
8/31EnexA major holder's stake rose from 29.54% to 30.27% (open-market buy).30.27%
8/31AmendedChunboA major holder's stake rose from 54.61% to 55.31%.55.31%
8/31ShinsegaeA major holder's stake rose from 29.15% to 29.77% (pledge).29.77%
8/31NeosemA major holder's stake fell from 10.72% to 10.13% (pledge).10.13%
8/31PimsA major holder's stake rose from 43.23% to 43.81% (open-market buy).43.81%
8/31Sejong TelecomA major holder's stake rose from 78.57% to 79.13%.79.13%
8/31AmendedChunboA major holder's stake rose from 54.20% to 54.61%.54.61%
8/31Hyundai Green FoodA major holder's stake rose from 52.42% to 52.80% (open-market sale).52.80%
8/31DMSA major holder's stake rose from 33.26% to 33.62%.33.62%
8/31UbiVeloxA major holder's stake rose from 30.04% to 30.33% (open-market buy).30.33%
8/31BIO Port KoreaA major holder's stake rose from 41.62% to 41.85% (related-party change).41.85%
8/31HCTA major holder's stake rose from 36.57% to 36.66% (open-market buy).36.66%
8/31BiotoxtechA major holder's stake rose from 24.11% to 24.20% (open-market buy).24.20%
8/31Great New wave ComingA major holder's stake rose from 73.81% to 73.88% (open-market buy).73.88%
8/31Daesung Hi-TechA major holder's stake fell from 39.54% to 39.50% (open-market sale).39.50%
8/31Kolon IndustriesA major holder's stake fell from 34.91% to 34.89% (open-market sale).34.89%
8/31Daishin SecuritiesA major holder's stake rose from 17.57% to 17.59%.17.59%
8/31Aztech WBA major holder's stake rose from 46.07% to 46.07% (gift).46.07%
8/31Zaram TechnologyA major holder's stake rose from 51.75% to 51.75% (pledge).51.75%
8/31VoronoiA major holder's stake rose from 40.57% to 40.57% (pledge).40.57%
8/31Hyundai Department StoreA major holder's stake rose from 43.95% to 43.95% (pledge).43.95%
8/31SK oceanplantA major holder's stake rose from 35.62% to 35.62%.35.62%
8/31KCA major holder's stake rose from 51.12% to 51.12% (gift).51.12%
8/31DaehyunA major holder's stake rose from 47.28% to 47.28%.47.28%
8/31HanilcementA major holder's stake rose from 71.34% to 71.34%.71.34%
8/31Chong Kun Dang PharmaceuticalA major holder's stake rose from 40.15% to 40.15% (share lending).40.15%
8/31ThinkwareSystemsA major holder's stake rose from 42.66% to 42.66% (pledge).42.66%
8/31Yg-1A major holder's stake rose from 31.03% to 31.03% (share lending).31.03%
All 5% holders →

Buybacks 11

8/31BuybackCelltrionPlans to buy back 524,384 sh of treasury stock, Sep 1 to Nov 30.₩100B
8/31TrustDongjin SemichemEnded a share buyback trust contract.₩10B
8/31TrustEgisSigned a ₩3B trust contract to buy back shares.₩3B
8/31TrustTemc CNSSigned a ₩3B trust contract to buy back shares.₩3B
8/31TrustUILSigned a ₩2B trust contract to buy back shares.₩2B
8/31TrustJPI HealthcareEnded a share buyback trust contract.₩1B
8/31AmendedBuybackSejin T.sPlans to buy back 371,747 sh of treasury stock, Sep 1 to Nov 30.₩1000M
8/31YeSUN TechShare cancellation
8/31AmendedKolonTreasury stock disposal
8/31AmendedKolonGlobalTreasury stock disposal
8/31Sejin T.sTreasury stock acquisition

Share issues & bonds 19

8/31CBItcenctsConversion price ₩6,109; if all converted, equal to 6.8% of shares outstanding.₩5B
8/31Agent AIRights offering
8/31HD Construction EquipmentRights offering
8/31AmendedAK HoldingsRights offering
8/31AmendedAekyung ChemicalRights offering
8/31SyntekaBioRights offering
8/31AmendedDavolinkRights offering
8/31AmendedDavolinkConvertible bond issue
8/31AmendedTHE CodiRights offering
8/31AmendedTHE CodiRights offering
8/31PhionxRights offering
8/31AmendedItekRights offering
8/31AmendedDaiyang MetalRights offering
8/31AmendedVivienRights offering
8/31AmendedVivienRights offering
8/31AmendedCube EntertainmentRights offering
8/31AmendedIokenmRights offering
8/31AmendedAgent AIRights offering
8/31AmendedSK D&DRights offering

M&A & spin-offs 5

8/31AmendedSimmtech HoldingsMerger
8/31AmendedSaeronautomotive CorporrationMerger
8/31AmendedClobotStake acquisition/disposal
8/31AmendedTera ScienceTangible asset deal
8/31AmendedChinyang Poly UrethaneTangible asset deal

Exchange actions 18

8/31AmendedGolfzon HoldingsUnfaithful disclosure
8/31Silla SGExchange
8/31KmpharmaceuticalExchange
8/31THE CodiAdministrative issue
8/31SI ResourcesExchange
8/31SI ResourcesTrading halt
8/31SeohanTrading halt
8/31FinetekAdministrative issue
8/31WOOREE E&L HaroutineExchange inquiry
8/31LK SamyangSpin-off / split
8/31Union Korea PharmAdministrative issue
8/31Sewha P&CTrading halt
8/31CreoSGExchange inquiry
8/31Dg-ItxExchange
8/31SLSBio(Specialty Lab Solution Bio)Exchange
8/31Sambu ConstructionExchange
8/31STX Green LogisInvestment caution
8/31Camus Engineering & ConstructionUnfaithful disclosure