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Key filings, October 28, 2026

439 filings · 12 highlights
← October 27, 2026October 29, 2026 →

Supply contracts 18

10/28AmendedExion Group CompanyWorth 665.4% of last year's revenue, over about 19 months.₩32.1B
10/28GigaVisWorth 58.3% of last year's revenue, over about 12 months.₩30.6B
10/28AmendedHVMWorth 35% of last year's revenue, over about 8 months.₩23.3B
10/28HVMWorth 35% of last year's revenue, over about 8 months.₩23.3B
10/28AmendedWoori Technology, InWorth 34.8% of last year's revenue, over about 25 months.₩22B
10/28AmendedShinwonConstructionWorth 29.9% of last year's revenue, over about 61 months.₩41.6B
10/28AmendedTS NexgenWorth 25.1% of last year's revenue, over about 81 months.₩10.7B
10/28FinetekWorth 21.6% of last year's revenue, over about 12 months.₩10B
10/28AmendedNamkwang Engineering & ConstructionWorth 18.4% of last year's revenue, over about 83 months.₩28.9B
10/28AmendedKorea Information Engineering ServicesWorth 17.6% of last year's revenue, over about 5 months.₩25.8B
10/28Woojin I&SWorth 15.6% of last year's revenue, over about 26 months.₩25.6B
10/28HL HoldingsWorth 14.6% of last year's revenue.₩254B
10/28HL D&I HallaWorth 14.6% of last year's revenue.₩254B
10/28AmendedWoori Technology, InWorth 10.9% of last year's revenue, over about 29 months.₩6.9B
10/28AmendedNamkwang Engineering & ConstructionWorth 8.8% of last year's revenue, over about 52 months.₩48.4B
10/28TechwingWorth 6% of last year's revenue, over about 6 months.₩9.5B
10/28HJ Shipbuilding & ConstructionWorth 5.4% of last year's revenue.₩108B
10/28AmendedKwang Myung ElectricWorth 4% of last year's revenue, over about 40 months.₩5.4B

Preliminary earnings 29

10/28Swung to profitOCI CompanyOperating profit: swung to profit (-₩10.3B → ₩30.3B). Revenue ₩599B, up 25.8% YoY.₩30.3B
10/28SK hynixOperating profit ₩83.33T, up 632.1% YoY. Revenue ₩104.62T, up 327.9% YoY.₩83.33T
10/28JC ChemicalOperating profit ₩9.9B, up 437.1% YoY. Revenue ₩186B, up 68% YoY.₩9.9B
10/28Hotel ShillaOperating profit ₩55.2B, up 382.4% YoY. Revenue ₩959B, down 6.5% YoY.₩55.2B
10/28HD HyundaiOperating profit ₩901B, up 371.2% YoY. Revenue ₩10.04T, up 37% YoY.₩901B
10/28Hanall BiopharmaOperating profit ₩1.3B, up 265% YoY. Revenue ₩39.9B, down 2.2% YoY.₩1.3B
10/28HD-Hyundai Marine EngineOperating profit ₩60.3B, up 197.2% YoY. Revenue ₩211B, up 93.7% YoY.₩60.3B
10/28Samsung Electro-MechanicsOperating profit ₩691B, up 165.5% YoY. Revenue ₩3.76T, up 30.3% YoY.₩691B
10/28HD Korea Shipbuilding & Offshore EngineeringOperating profit ₩763B, up 163.6% YoY. Revenue ₩1.16T, up 141.4% YoY.₩763B
10/28HD HyundaiOperating profit ₩2.92T, up 71.5% YoY. Revenue ₩22.08T, up 21.2% YoY.₩2.92T
10/28HD Hyundai Heavy IndustriesOperating profit ₩899B, up 61.3% YoY. Revenue ₩5.75T, up 30.2% YoY.₩899B
10/28HD Hyundai Heavy IndustriesOperating profit ₩892B, up 59.2% YoY. Revenue ₩5.73T, up 29.8% YoY.₩892B
10/28HD Korea Shipbuilding & Offshore EngineeringOperating profit ₩479B, up 56.3% YoY. Revenue ₩2.37T, up 20.5% YoY.₩479B
10/28YuhanOperating profit ₩34.7B, up 44.2% YoY. Revenue ₩586B, up 6.3% YoY.₩34.7B
10/28AhnlabOperating profit ₩10.9B, up 38.7% YoY. Revenue ₩79.5B, up 23.1% YoY.₩10.9B
10/28HD Korea Shipbuilding & Offshore EngineeringOperating profit ₩1.45T, up 37.3% YoY. Revenue ₩8.29T, up 9.3% YoY.₩1.45T
10/28AhnlabOperating profit ₩12.9B, up 25.3% YoY. Revenue ₩72.2B, up 26.2% YoY.₩12.9B
10/28Hansol LogisticsOperating profit ₩7.6B, up 25% YoY. Revenue ₩190B, up 12.2% YoY.₩7.6B
10/28PlayDOperating profit ₩1.7B, up 21.7% YoY. Revenue ₩8.6B, down 9% YoY.₩1.7B
10/28PlayDOperating profit ₩1.7B, up 15.3% YoY. Revenue ₩11.6B, up 22.3% YoY.₩1.7B
10/28Samsung C&TOperating profit ₩1.14T, up 15% YoY. Revenue ₩12.01T, up 18.3% YoY.₩1.14T
10/28NI SteelOperating profit ₩9.3B, up 13.5% YoY. Revenue ₩73.5B, up 12.7% YoY.₩9.3B
10/28AmendedLG ElectronicsOperating profit ₩782B, up 13.5% YoY. Revenue ₩23.82T, up 8.9% YoY.₩782B
10/28PI Advanced MaterialsOperating profit ₩12.5B, up 7.9% YoY. Revenue ₩55.5B, down 18.8% YoY.₩12.5B
10/28Samsung Epis HoldingsOperating profit ₩133B, up 2.8% YoY. Revenue ₩442B, up 0.3% YoY.₩133B
10/28HK inno.NOperating profit ₩26B, up 0.6% YoY. Revenue ₩260B, down 0.2% YoY.₩26B
10/28Loss widenedDoosan Fuel CellOperating profit: loss widened (-₩15.6B → -₩17B). Revenue ₩145B, up 59.9% YoY.-₩17B
10/28Samsung Epis HoldingsOperating profit ₩105B. Revenue ₩442B.₩105B
10/28Loss narrowedSKCOperating profit: loss narrowed (-₩54.9B → -₩49.6B). Revenue ₩639B, up 26% YoY.-₩49.6B

Insider trades 39

10/28Net saleDoosanNational Pension Service bought 19,665 sh and sold 75,678 sh, Oct 6–22: net sale of 56,013 sh.₩25.1B
10/28Net saleS-OilNational Pension Service bought 353,067 sh and sold 642,031 sh, Oct 1–22: net sale of 288,964 sh.₩56.6B
10/28SaleMsbio10%+ shareholder sold 577,833 sh on the market at an average ₩14,048, Oct 26–28.₩8.1B
10/28BuyLS Marine Solution10%+ shareholder bought 248,799 sh on the market at an average ₩29,196, Oct 22–27.₩7.3B
10/28BuyKPX ChemicalAn insider bought 48,328 sh on the market at an average ₩61,764, Oct 21–28.₩3B
10/28BuyWebzenDirector bought 174,000 sh on the market at an average ₩12,026, Oct 23–28.₩2.1B
10/28BuyGlobal Tax Free10%+ shareholder bought 124,201 sh on the market at an average ₩5,587, Oct 21–23.₩693.9M
10/28SaleDg-ItxCEO sold 344,426 sh on the market at an average ₩973, Oct 21.₩335.1M
10/28BuyInveniAn insider bought 23,812 sh on the market at an average ₩13,708, Oct 28.₩326.4M
10/28BuyWoory IndustrialAn insider bought 38,194 sh on the market at an average ₩6,772, Oct 21–28.₩258.7M
10/28BuyQualitas SemiconductorExecutive bought 14,000 sh on the market at an average ₩8,880, Oct 27.₩124.3M
10/28BuyDaishin SecuritiesChairman bought 2,740 sh on the market at an average ₩22,290, Oct 28–29.₩61.1M
10/28SaleITM SemiconductorPresident sold 8,097 sh on the market at an average ₩6,026, Oct 21–28.₩48.8M
10/28BuyCTR MobilityCEO bought 13,000 sh on the market at an average ₩3,453, Oct 26–27.₩44.9M
10/28BuyGlobalStandardTechnologyCEO bought 1,000 sh on the market at an average ₩43,000, Oct 22–26.₩43M
10/28BuyCTR MobilityAn insider bought 7,000 sh on the market at an average ₩3,537, Oct 27.₩24.8M
10/28BuySFA EngineeringPresident bought 800 sh on the market at an average ₩26,256, Oct 26–28.₩21M
10/28BuySamsung PublishingDirector bought 2,899 sh on the market at an average ₩5,847, Oct 28.₩17M
10/28BuyTHE Nature HoldingsCEO bought 2,500 sh on the market at an average ₩6,275, Oct 26–28.₩15.7M
10/28BuyPoint MobileCEO bought 4,368 sh on the market at an average ₩2,300, Oct 22–27.₩10M
10/28BuyLDTDirector bought 4,230 sh on the market at an average ₩2,367, Oct 23.₩10M
10/28BuyGenorayCEO bought 2,107 sh on the market at an average ₩3,086, Oct 26.₩6.5M
10/28BuyGFC Life ScienceCEO bought 1,206 sh on the market at an average ₩4,594, Oct 26–28.₩5.5M
10/28BuyGC Medical ScienceCEO bought 1,500 sh on the market at an average ₩3,657, Oct 26.₩5.5M
10/28BuyOutin FuturesExecutive bought 5,000 sh on the market at an average ₩1,089, Oct 23.₩5.4M
10/28BuyYuanta Securities KoreaExecutive bought 1,000 sh on the market at an average ₩3,765, Oct 28.₩3.8M
10/28SaleSamsung BiologicsExecutive sold 11 sh on the market at an average ₩321,000, Oct 27.₩3.5M
10/28BuyLDTDirector bought 1,000 sh on the market at an average ₩2,329, Oct 23–27.₩2.3M
10/28AmendedOther changeBlue Industrial DevelopmentLargest shareholder group's holding rose by 2,989,131 sh (rights offering).+2,989,131 sh
10/28Other changeS2wDirector's holding rose by 600 sh (other change).+600 sh
10/28Other changeBlue Industrial DevelopmentLargest shareholder group's holding rose by 2,989,131 sh (rights offering).+2,989,131 sh
10/28BuyDB SecuritiesLargest shareholder group bought 134,939 sh on the market, Oct 22–29.₩0
10/28Other changeChoil AluminumCEO's holding rose by 101,000 sh (other change).+101,000 sh
10/28BuyGood PeopleAn insider bought 50,426 sh on the market, Oct 26–27.₩0
10/28Other changeSamsung E&ANational Pension Service's holding rose by 19,600,844 sh (new report, other change).+19,600,844 sh
10/28Other changeDTS10%+ shareholder's holding rose by 2,736,904 sh (new report).+2,736,904 sh
10/28Other changeGeninusDirector's holding rose by 2,280 sh (new report).+2,280 sh
10/28BuyDongkuk Refractories & SteelExecutive bought 1,500 sh on the market at an average ₩-1,611, Oct 26–27.-₩2.4M
10/28BuyBG T&ACEO bought 66,000 sh on the market at an average ₩-2,367, Oct 21–23.-₩156.2M

5% holders 35

10/28New 5%Blue Industrial DevelopmentA major holder's stake rose from 0.00% to 70.28% (rights offering).70.28%
10/28New 5%GabiaA major holder's stake rose from 0.00% to 69.35%.69.35%
10/28Below 5%Blue Industrial DevelopmentA major holder's stake fell from 59.70% to 0.00%.0.00%
10/28New 5%DTSA major holder's stake rose from 0.00% to 18.39%.18.39%
10/28New 5%Nexa DynamicsA major holder's stake rose from 0.00% to 15.73% (conversion/exercise).15.73%
10/28AmendedNew 5%HumaxA major holder's stake rose from 0.00% to 15.17% (new report).15.17%
10/28New 5%SK Securities No.14 Special Purpose Acquisition CompanyA major holder's stake rose from 0.00% to 13.05% (new report).13.05%
10/28New 5%Hana 32 Special Purpose Acquistion CompanyA major holder's stake rose from 0.00% to 9.86%.9.86%
10/28New 5%MsbioA major holder's stake rose from 0.00% to 8.22% (open-market sale).8.22%
10/28New 5%KinxA major holder's stake rose from 0.00% to 7.97%.7.97%
10/28New 5%Becu AIA major holder's stake rose from 0.00% to 5.81%.5.81%
10/28New 5%Creas F&CA major holder's stake rose from 0.00% to 5.73% (new report).5.73%
10/28New 5%SK DiscoveryA major holder's stake rose from 0.00% to 5.00% (new report).5.00%
10/28New 5%KwangjinIndA major holder's stake rose from 0.00% to 5.00%.5.00%
10/28Below 5%JincostechA major holder's stake fell from 8.62% to 2.47% (rights offering).2.47%
10/28Below 5%Creas F&CA major holder's stake fell from 8.36% to 2.88% (related-party change).2.88%
10/28AlticastA major holder's stake fell from 34.39% to 30.25% (related-party change).30.25%
10/28Below 5%S-PrismA major holder's stake fell from 5.00% to 2.63%.2.63%
10/28KPX ChemicalA major holder's stake rose from 71.38% to 72.54%.72.54%
10/28WebzenA major holder's stake rose from 35.45% to 36.59% (open-market buy).36.59%
10/28TechwingA major holder's stake rose from 6.79% to 7.91%.7.91%
10/28DB SecuritiesA major holder's stake rose from 37.32% to 38.34%.38.34%
10/28Daishin SecuritiesA major holder's stake rose from 17.59% to 18.21%.18.21%
10/28BG T&AA major holder's stake rose from 25.44% to 25.92% (related-party change).25.92%
10/28SNT HoldingsA major holder's stake rose from 70.60% to 71.03%.71.03%
10/28InveniA major holder's stake rose from 48.11% to 48.35% (related-party change).48.35%
10/28KinxA major holder's stake fell from 39.87% to 39.72% (gift).39.72%
10/28CntusA major holder's stake rose from 49.53% to 49.61%.49.61%
10/28AmendedNobland InternationalA major holder's stake fell from 51.51% to 51.48% (inheritance).51.48%
10/28UracleA major holder's stake rose from 33.36% to 33.38% (open-market buy).33.38%
10/28GFC Life ScienceA major holder's stake rose from 37.66% to 37.68%.37.68%
10/28RfhicA major holder's stake rose from 33.08% to 33.10% (gift).33.10%
10/28Bookook SecuritiesA major holder's stake rose from 35.43% to 35.43% (related-party change).35.43%
10/28Choil AluminumA major holder's stake rose from 42.38% to 42.38% (gift).42.38%
10/28GabiaA major holder's stake rose from 26.91% to 26.91%.26.91%

Buybacks 19

10/28BuybackSK hynixPlans to buy back 14,920,000 sh of treasury stock, Oct 29 to Jan 28.₩20.01T
10/28TrustLG ChemSigned a ₩300B trust contract to buy back shares.₩300B
10/28TrustiM Financial GroupEnded a share buyback trust contract.₩30B
10/28Trustd'Alba GlobalSigned a ₩10B trust contract to buy back shares.₩10B
10/28BuybackKoreaAlcoholIndustrialPlans to buy back 300,000 sh of treasury stock, Oct 29 to Jan 28.₩4.3B
10/28DisposalBoryungPlans to dispose of 445,000 sh of treasury stock, Nov 30 to Dec 30.₩3.7B
10/28TrustDongKoo Bio & PharmaEnded a share buyback trust contract.₩3B
10/28BuybackShinwonPlans to buy back 2,585,316 sh of treasury stock, Oct 29 to Jan 28.₩2.5B
10/28TrustWoosungEnded a share buyback trust contract.₩2.3B
10/28BuybackMiwon CommercialPlans to buy back 15,748 sh of treasury stock, Oct 29 to Jan 28.₩2B
10/28DongKoo Bio & PharmaShare cancellation
10/28Sewoonmedical Co,Share cancellation
10/28Poongsan HoldingsShare cancellation
10/28LGShare cancellation
10/28LG ChemShare cancellation
10/28LGBuyback trust contract
10/28AmendediM Financial GroupShare cancellation
10/28AmendediM Financial GroupShare cancellation
10/28SK SquareTreasury stock acquisition

Share issues & bonds 11

10/28Rights offeringGreat New wave ComingIssuing 1,190,476 sh of new shares, equal to 19.9% of existing shares.₩3B
10/28AmendedRights offeringHumaxIssuing 939,849 sh of new shares, equal to 14.3% of existing shares.₩5B
10/28AmendedCBHumaxConversion price ₩5,320; if all converted, equal to 11.1% of shares outstanding.₩5B
10/28AmendedRights offeringLithium-for-earthIssuing 574,414 sh of new shares, equal to 4.8% of existing shares.₩1.1B
10/28AmendedRights offeringMsdiIssuing 589,448 sh of new shares, equal to 2.9% of existing shares.₩2B
10/28AmendedCBLightron Fiber-Optic DevicesConversion price ₩3,808; if all converted, equal to 0.7% of shares outstanding.₩3B
10/28AmendedTHE CodiRights offering
10/28AmendedGreat New wave ComingConvertible bond issue
10/28AmendedSeoul Electronics & TelecomRights offering
10/28AmendedDavolinkRights offering
10/28AmendedDavolinkConvertible bond issue

M&A & spin-offs 11

10/28AxbisA ₩8.1B deal, equal to 11.2% of total assets.₩8.1B
10/28KolmarBNHMerger
10/28Kolmar HoldingsMerger
10/28AmendedSKMerger
10/28AmendedSK ie technologyMerger
10/28KolmarBNHMerger
10/28AmendedSK ie technologyMerger
10/28AmendedDhautonexMerger
10/28AmendedSK InnovationMerger
10/28AmendedHumaxMerger
10/28AmendedHyundai MobisSpin-off / split

Exchange actions 14

10/28FidelixTrading halt
10/28FidelixExchange
10/28HyperUnfaithful disclosure
10/28ImmuneOncia TherapeuticsUnfaithful disclosure
10/28FidelixTrading halt
10/28FidelixExchange inquiry
10/28Joongang Advanced MaterialsTrading halt
10/28AgosTrading halt
10/28KinxExchange inquiry
10/28PhionxExchange inquiry
10/28Daiyang MetalExchange
10/28Daiyang MetalUnfaithful disclosure
10/28KolonUnfaithful disclosure
10/28FreeTAdministrative issue