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Key filings, March 13, 2026

1,479 filings · 10 highlights
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Supply contracts 17

3/13AmendedAPS InnovationWorth 58.2% of last year's revenue, over about 28 months.₩74.2B
3/13AmendedHana TechnologyWorth 33.6% of last year's revenue, over about 38 months.₩40.3B
3/13FaduWorth 23.2% of last year's revenue, over about 7 months.₩10.1B
3/13AmendedHana TechnologyWorth 21.9% of last year's revenue, over about 36 months.₩26.2B
3/13TESWorth 20.2% of last year's revenue, over about 8 months.₩48.5B
3/13AmendedSphereWorth 20.2% of last year's revenue, over about 3 months.₩516.5M
3/13SemiFiveWorth 16.2% of last year's revenue, over about 26 months.₩18.1B
3/13Hanwha EngineWorth 9.2% of last year's revenue, over about 37 months.₩111B
3/13AmendedPrestige BioPharmaWorth 8.6% of last year's revenue, over about 7 months.₩1.2B
3/13MNC SolutionWorth 6.5% of last year's revenue, over about 23 months.₩18.3B
3/13MiraeWorth 6.2% of last year's revenue, over about 4 months.₩1.7B
3/13Samsung BiologicsWorth 6.2% of last year's revenue, over about 79 months.₩280B
3/13AmendedHanwha SystemsWorth 6% of last year's revenue, over about 51 months.₩125B
3/13AmendedLSWorth 5.7% of last year's revenue, over about 68 months.₩263B
3/13HJ Shipbuilding & ConstructionWorth 4.7% of last year's revenue, over about 39 months.₩89.4B
3/13FantagioSingle sales/supply contract
3/13Hyundai Engineering & ConstructionSupply contract terminated

Preliminary earnings 4

3/13Seojin SystemOperating profit ₩23.5B, up 2241.8% YoY. Revenue ₩311B, up 17.6% YoY.₩23.5B
3/13AromaticaOperating profit ₩995M, down 48.9% YoY. Revenue ₩13.8B, up 9.4% YoY.₩995M
3/13KoreaGasPreliminary operating results
3/13OrionPreliminary operating results

Insider trades 95

3/13HBLInsider ownership report
3/13SKAI worldwideInsider ownership report
3/13KNR SystemsInsider ownership report
3/13KNR SystemsInsider ownership report
3/13TPC RoboticsInsider ownership report
3/13TPC RoboticsInsider ownership report
3/13KNR SystemsInsider ownership report
3/13KNR SystemsInsider ownership report
3/13KNR SystemsInsider ownership report
3/13KNR SystemsInsider ownership report
3/13Samsung Electronics Co,Insider ownership report
3/13Chong Kun Dang PharmaceuticalInsider ownership report
3/13S-OilInsider ownership report
3/13Daewon PharmaceuticalInsider ownership report
3/13AmendedAtecInsider ownership report
3/13FSNInsider ownership report
3/13AmendedAtecInsider ownership report
3/13UnickInsider ownership report
3/13Trinity AirwaysInsider ownership report
3/13AutocryptInsider ownership report
3/13AutocryptInsider ownership report
3/13SolidInsider ownership report
3/13NaverInsider ownership report
3/13NaverInsider ownership report
3/13NaverInsider ownership report
3/13MDSsphereInsider ownership report
3/13NaverInsider ownership report
3/13SolidInsider ownership report
3/13ESteemInsider ownership report
3/13NaverInsider ownership report
3/13NaverInsider ownership report
3/13NaverInsider ownership report
3/13NaverInsider ownership report
3/13S-OilInsider ownership report
3/13OricomInsider ownership report
3/13PC DirectInsider ownership report
3/13NaverInsider ownership report
3/13Sunny ElectronicsInsider ownership report
3/13NaverInsider ownership report
3/13NaverInsider ownership report
All insider trades →

5% holders 51

3/13New 5%SK eternixA major holder's stake rose from 0.00% to 43.10% (new report).43.10%
3/13New 5%Daesung Microbiological Labs.A major holder's stake rose from 0.00% to 38.60%.38.60%
3/13New 5%RN2 TechnologiesA major holder's stake rose from 0.00% to 15.14% (conversion/exercise).15.14%
3/13New 5%ESteemA major holder's stake rose from 0.00% to 14.54%.14.54%
3/13New 5%Daeho ALA major holder's stake rose from 0.00% to 13.78%.13.78%
3/13New 5%Exion Group CompanyA major holder's stake rose from 0.00% to 8.46% (conversion/exercise).8.46%
3/13New 5%UnichemA major holder's stake rose from 0.00% to 8.23% (new report).8.23%
3/13New 5%UnichemA major holder's stake rose from 0.00% to 7.70% (new report).7.70%
3/13New 5%ESteemA major holder's stake rose from 0.00% to 7.69% (open-market sale).7.69%
3/13New 5%Exion Group CompanyA major holder's stake rose from 0.00% to 5.59% (conversion/exercise).5.59%
3/13New 5%IremA major holder's stake rose from 0.00% to 5.56% (new report).5.56%
3/13AirraneA major holder's stake rose from 19.74% to 23.86% (open-market buy).23.86%
3/13Below 5%RfhicA major holder's stake rose from 0.00% to 3.97% (new report).3.97%
3/13IremA major holder's stake rose from 17.73% to 20.82% (rights offering).20.82%
3/13Leaders CosmeticsA major holder's stake rose from 28.38% to 31.26% (related-party change).31.26%
3/13KNR SystemsA major holder's stake fell from 48.09% to 46.41% (open-market sale).46.41%
3/13HBLA major holder's stake fell from 48.20% to 46.62% (related-party change).46.62%
3/13ST PharmA major holder's stake fell from 39.01% to 37.88% (stock option).37.88%
3/13MIRAE ASSET Life InsuranceA major holder's stake rose from 59.97% to 61.03% (related-party change).61.03%
3/13Shin SteelA major holder's stake fell from 69.35% to 68.62% (gift).68.62%
3/13Harim HoldingsA major holder's stake rose from 49.81% to 50.32% (pledge).50.32%
3/13NuonA major holder's stake rose from 78.34% to 78.68% (open-market buy).78.68%
3/13JntcA major holder's stake fell from 66.12% to 65.85% (conversion/exercise).65.85%
3/13CntusA major holder's stake rose from 48.65% to 48.89%.48.89%
3/13GFC Life ScienceA major holder's stake fell from 36.78% to 36.62% (related-party change).36.62%
3/13GeniansA major holder's stake fell from 39.48% to 39.36% (open-market sale).39.36%
3/13GaonchipsA major holder's stake fell from 48.01% to 47.95% (open-market sale).47.95%
3/13UnichemA major holder's stake fell from 20.63% to 20.58% (pledge).20.58%
3/13OricomA major holder's stake rose from 62.45% to 62.48%.62.48%
3/13KmpharmaceuticalA major holder's stake rose from 39.08% to 39.10% (open-market buy).39.10%
3/13TPC RoboticsA major holder's stake fell from 50.79% to 50.78% (gift).50.78%
3/13i-Scream MediaA major holder's stake fell from 61.15% to 61.14% (pledge).61.14%
3/13Sungho ElectronicsA major holder's stake rose from 64.33% to 64.33% (pledge).64.33%
3/13ARIBIO HoldingsA major holder's stake rose from 9.40% to 9.40% (share lending).9.40%
3/13AptnA major holder's stake rose from 32.51% to 32.51% (pledge).32.51%
3/13ITM SemiconductorA major holder's stake rose from 63.36% to 63.36% (pledge).63.36%
3/13Pond GroupA major holder's stake rose from 76.55% to 76.55% (pledge).76.55%
3/13Sejin Heavy IndustriesA major holder's stake rose from 59.42% to 59.42% (pledge).59.42%
3/13H.pioA major holder's stake rose from 73.15% to 73.15% (pledge).73.15%
3/13IS DongseoA major holder's stake rose from 55.89% to 55.89%.55.89%
All 5% holders →

Buybacks 6

3/13DisposalHecto FinancialPlans to dispose of 218,600 sh of treasury stock, Mar 16 to Mar 20.₩8.1B
3/13TrustSolidSigned a ₩1.8B trust contract to buy back shares.₩1.8B
3/13BuybackExemPlans to buy back 818,777 sh of treasury stock, Mar 16 to Jun 15.₩1.5B
3/13DisposalIntellian TechnologiesPlans to dispose of 6,884 sh of treasury stock, Mar 13 to Mar 31.₩452.9M
3/13DisposalCellromax SciencePlans to dispose of 34,461 sh of treasury stock, Apr 1 to Apr 1.₩170.6M
3/13ktcsShare cancellation

Share issues & bonds 34

3/13Capital reductionVivienCapital reduction of 96.7%.96.7%
3/13AmendedCapital reductionBitmaxCapital reduction of 75%.75%
3/13Capital reductionWizitCapital reduction of 66.7%.66.7%
3/13AmendedCBHanjoo ARTConversion price ₩529; if all converted, equal to 43% of shares outstanding.₩4.6B
3/13AmendedCBJK SynapConversion price ₩412; if all converted, equal to 27.2% of shares outstanding.₩7.5B
3/13CBEwon ComfortechConversion price ₩614; if all converted, equal to 17.1% of shares outstanding.₩4.2B
3/13CBTHE E&MConversion price ₩1,466; if all converted, equal to 15.1% of shares outstanding.₩8.5B
3/13CBAsiclandConversion price ₩31,517; if all converted, equal to 11.6% of shares outstanding.₩45B
3/13CBTHE E&MConversion price ₩1,659; if all converted, equal to 8.4% of shares outstanding.₩5B
3/13AmendedCBHanjoo ARTConversion price ₩524; if all converted, equal to 4.8% of shares outstanding.₩500M
3/13BWJeju SemiconductorExercise price ₩44,300; if all exercised, equal to 3.9% of shares outstanding.₩62B
3/13CBJeju SemiconductorConversion price ₩44,300; if all converted, equal to 2.9% of shares outstanding.₩45B
3/13Rights offeringCosmo Advanced Materials & TechnologyIssuing 703,815 sh of new shares, equal to 2.2% of existing shares.₩35B
3/13BWJeju SemiconductorExercise price ₩44,300; if all exercised, equal to 0.7% of shares outstanding.₩10B
3/13CosmochemicalRights offering
3/13AmendedCheongboConvertible bond issue
3/13AmendedSungwon Ener TechRights offering
3/13AmendedARIBIO HoldingsConvertible bond issue
3/13AmendedPeopleBioRights offering
3/13AmendedDawonsysRights offering
3/13AmendedBarunson Entertainment & ArtsCapital reduction
3/13NuonCapital reduction
3/13AmendedItoxiRights offering
3/13AmendedCarryRights offering
3/13AmendedItoxiRights offering
3/13AmendedNanoSilikhan Advanced MaterialsConvertible bond issue
3/13AmendedVictory ContentsRights offering
3/13AmendedItoxiRights offering
3/13AmendedAtumRights offering
3/13AmendedJOLCapital reduction
3/13AmendedAdbiotechRights offering
3/13THE CodiConvertible bond issue
3/13Barunson Entertainment & ArtsCapital reduction
3/13OrbitechConvertible bond issue

M&A & spin-offs 5

3/13AmendedKG Eco SolutionMerger
3/13AmendedKG Eco SolutionMerger
3/13AmendedKG DongbusteelMerger
3/13AmendedKG DongbusteelMerger
3/13AmendedIncar Financial ServiceMerger

Exchange actions 9

3/13RN2 TechnologiesUnfaithful disclosure
3/13WizitTrading halt
3/13ChemtrosUnfaithful disclosure
3/13DAPTrading halt
3/13DAPAdministrative issue
3/13DAPAdministrative issue
3/13NuonTrading halt
3/13SamjinfoodExchange inquiry
3/13VivienTrading halt