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Key filings, April 21, 2026

348 filings · 12 highlights

← April 20, 2026 April 22, 2026 →

ContractAsiana IDTKOSPI

Contract value

₩67.1B

Of revenue

34.6%

Worth 34.6% of last year's revenue, over about 12 months.

2026-01-01 – 2026-12-31

Company filings →Original (Korean) ↗

ContractGMB KoreaKOSPI

Contract value

₩129B

Of revenue

16.4%

Worth 16.4% of last year's revenue, over about 79 months.

2028-06-15 – 2034-12-31

Company filings →Original (Korean) ↗

EarningsChinhung InternationalKOSPI

Operating profit

₩11.1B

YoY

+835.8%

Operating profit ₩11.1B, up 835.8% YoY. Revenue ₩184B, up 92.5% YoY.

Q1 2026 · Separate

Company filings →Original (Korean) ↗

EarningsSGC EnergyKOSPI

Operating profit

₩35.6B

YoY

+102.3%

Operating profit ₩35.6B, up 102.3% YoY. Revenue ₩612B, down 1.1% YoY.

Q1 2026 · Separate

Company filings →Original (Korean) ↗

EarningsBukwang Pharmaceutical INDKOSPI

Operating profit

₩1.1B

YoY

-62.6%

Operating profit ₩1.1B, down 62.6% YoY. Revenue ₩47.8B, down 0.1% YoY.

Q1 2026 · Separate

Company filings →Original (Korean) ↗

5% holderNew 5%Haisung Aero-RoboticsKOSDAQ

Stake

32.72%

Change

+32.72pp

A major holder's stake rose from 0.00% to 32.72%.

Company filings →Original (Korean) ↗

5% holderNew 5%ObigoKOSDAQ

Stake

15.14%

Change

+15.14pp

A major holder's stake rose from 0.00% to 15.14% (conversion/exercise).

Company filings →Original (Korean) ↗

5% holderHaisung Aero-RoboticsKOSDAQ

Stake

9.92%

Change

-22.80pp

A major holder's stake fell from 32.72% to 9.92%.

Company filings →Original (Korean) ↗

BuybackTrustSupremaKOSDAQ

Trust size

₩12B

Signed a ₩12B trust contract to buy back shares.

Company filings →Original (Korean) ↗

BuybackTrustSuprema HQKOSDAQ

Trust size

₩8B

Signed a ₩8B trust contract to buy back shares.

Company filings →Original (Korean) ↗

IssuanceCBADTechnologyKOSDAQ

Issue size

₩130B

If all converted

15%

Conversion price ₩54,603; if all converted, equal to 15% of shares outstanding.

Company filings →Original (Korean) ↗

IssuanceCBYjlinkKOSDAQ

Issue size

₩25B

If all converted

12.2%

Conversion price ₩6,308; if all converted, equal to 12.2% of shares outstanding.

Company filings →Original (Korean) ↗

Supply contracts 9

4/21AmendedSphere Worth 1684.9% of last year's revenue, over about 4 months.₩43.1B

4/21AmendedSK oceanplant Worth 62.9% of last year's revenue.₩417B

4/21AmendedSamil C&S Worth 39.4% of last year's revenue, over about 46 months.₩88.4B

4/21Asiana IDT Worth 34.6% of last year's revenue, over about 12 months.₩67.1B

4/21AmendedNamkwang Engineering & Construction Worth 22.1% of last year's revenue, over about 56 months.₩99.5B

4/21GMB Korea Worth 16.4% of last year's revenue, over about 79 months.₩129B

4/21AmendedDaewoo Engineering & Construction Worth 4.1% of last year's revenue, over about 150 months.₩439B

4/21AmendedCS Wind Worth 1.2% of last year's revenue.₩36.7B

4/21LIG Defense&Aerospace Single sales/supply contract

Preliminary earnings 8

4/21Swung to profitToebox Korea Operating profit: swung to profit (-₩222M → ₩834M). Revenue ₩9.9B, up 6.9% YoY.₩834M

4/21Chinhung International Operating profit ₩11.1B, up 835.8% YoY. Revenue ₩184B, up 92.5% YoY.₩11.1B

4/21SGC Energy Operating profit ₩35.6B, up 102.3% YoY. Revenue ₩612B, down 1.1% YoY.₩35.6B

4/21Bukwang Pharmaceutical IND Operating profit ₩1.1B, down 62.6% YoY. Revenue ₩47.8B, down 0.1% YoY.₩1.1B

4/21SGC E&C Operating profit ₩17.9B, up 54.7% YoY. Revenue ₩318B, down 3.7% YoY.₩17.9B

4/21LS Electric Operating profit ₩127B, up 45% YoY. Revenue ₩1.38T, up 33.4% YoY.₩127B

4/21Air Busan Operating profit ₩30.4B, down 24.4% YoY. Revenue ₩258B, up 3.2% YoY.₩30.4B

4/21Orion Preliminary operating results

Insider trades 51

4/21PIM Korea Insider ownership report

4/21Korea Castiron Pipe IND Insider ownership report

4/21Daihan Scientific Insider ownership report

4/21Hunesion Insider ownership report

4/21Daeduck Electronics Insider ownership report

4/21DNF Insider ownership report

4/21DIT Insider ownership report

4/21KB No.33 Special Purpose Acquisition Company Insider ownership report

4/21DAE HWA Pharm Insider ownership report

4/21Agent AI Insider ownership report

4/21CammSys Insider ownership report

4/21BioNote Insider ownership report

4/21CammSys Insider ownership report

4/21Great New wave Coming Insider ownership report

4/21Bitmax Insider ownership report

4/21SKC Insider ownership report

4/21Woorim Power Train Solution Insider ownership report

4/21Youngpoong Insider ownership report

4/21KSS Line Insider ownership report

4/21ES Cube Insider ownership report

4/21Woorim Power Train Solution Insider ownership report

4/21MegaStudyEdu Insider ownership report

4/21Senko Insider ownership report

4/21CreoSG Insider ownership report

4/21S2w Insider ownership report

4/21Point Engineering Insider ownership report

4/21iM Financial Group Insider ownership report

4/21Kmpharmaceutical Insider ownership report

4/21Daishin Value REIT Insider ownership report

4/21Monitorapp Insider ownership report

4/21Gritee Insider ownership report

4/21Daewon Media Insider ownership report

4/21Mintech Insider ownership report

4/21Daewon Media Insider ownership report

4/21Mdevice Insider ownership report

4/21Daewon Media Insider ownership report

4/21Sena Technologies Insider ownership report

All insider trades →

5% holders 46

4/21New 5%Haisung Aero-Robotics A major holder's stake rose from 0.00% to 32.72%.32.72%

4/21New 5%Obigo A major holder's stake rose from 0.00% to 15.14% (conversion/exercise).15.14%

4/21Haisung Aero-Robotics A major holder's stake fell from 32.72% to 9.92%.9.92%

4/21New 5%Moadata A major holder's stake rose from 0.00% to 11.18% (conversion/exercise).11.18%

4/21AmendedNew 5%Pavonine A major holder's stake rose from 0.00% to 8.84% (conversion/exercise).8.84%

4/21New 5%WooDeumGee Farm A major holder's stake rose from 0.00% to 5.40% (conversion/exercise).5.40%

4/21New 5%Hyundai-Rotem BlackRock's stake rose from 4.99% to 5.00%.5.00%

4/21Below 5%Haisung Aero-Robotics A major holder's stake fell from 9.92% to 0.63%.0.63%

4/21Below 5%Hunesion A major holder's stake fell from 6.64% to 3.02% (open-market sale).3.02%

4/21ES Cube A major holder's stake rose from 55.83% to 59.24% (related-party change).59.24%

4/21Below 5%Foodnamoo A major holder's stake fell from 7.37% to 4.47% (off-market sale).4.47%

4/21Victory Contents A major holder's stake fell from 11.42% to 9.34% (off-market sale).9.34%

4/21Optrontec A major holder's stake rose from 10.14% to 12.22%.12.22%

4/21d'Alba Global A major holder's stake fell from 32.37% to 30.32%.30.32%

4/21Below 5%NBR Motion A major holder's stake fell from 5.93% to 4.05% (open-market sale).4.05%

4/21Sungho Electronics A major holder's stake rose from 64.38% to 66.07% (conversion/exercise).66.07%

4/21Daeduck Electronics A major holder's stake fell from 32.16% to 30.82% (open-market sale).30.82%

4/21Anterogen A major holder's stake fell from 7.89% to 7.25% (conversion/exercise).7.25%

4/21DNF A major holder's stake rose from 34.43% to 35.03%.35.03%

4/21BioNote A major holder's stake rose from 73.51% to 73.86% (related-party change).73.86%

4/21Point Engineering A major holder's stake rose from 49.27% to 49.53% (open-market buy).49.53%

4/21Lskairobot A major holder's stake rose from 39.08% to 39.33% (pledge).39.33%

4/21HLB Genex A major holder's stake fell from 38.96% to 38.72% (open-market buy).38.72%

4/21Korchip A major holder's stake fell from 65.78% to 65.59% (stock option).65.59%

4/21AmendedSM Entertainment A major holder's stake rose from 5.78% to 5.87% (related-party change).5.87%

4/21T3 Entertainment A major holder's stake rose from 36.36% to 36.43% (open-market buy).36.43%

4/21Genoray A major holder's stake fell from 26.90% to 26.84% (open-market sale).26.84%

4/21LS THiRA-UTECH A major holder's stake fell from 31.86% to 31.82% (related-party change).31.82%

4/21Kmpharmaceutical A major holder's stake rose from 39.28% to 39.32% (open-market buy).39.32%

4/21Yuyu Pharma A major holder's stake fell from 33.25% to 33.23%.33.23%

4/21Below 5%Aurora World A major holder's stake fell from 4.97% to 4.95%.4.95%

4/21Kyung-In Synthetic A major holder's stake rose from 33.91% to 33.93% (open-market buy).33.93%

4/21AmendedKorea Z A major holder's stake rose from 17.71% to 17.71% (related-party change).17.71%

4/21National Plastic Company A major holder's stake rose from 58.29% to 58.29% (pledge).58.29%

4/21Pond Group A major holder's stake rose from 76.59% to 76.59% (pledge).76.59%

4/21Pavonine Report of 5%+ holding

4/21Hansol Chemical A major holder's stake rose from 13.09% to 13.09% (share lending).13.09%

4/21HLB Therapeutics A major holder's stake rose from 15.93% to 15.93%.15.93%

4/21HLB A major holder's stake rose from 9.95% to 9.95% (pledge).9.95%

4/21Kumyang A major holder's stake rose from 26.55% to 26.55% (pledge).26.55%

All 5% holders →

Buybacks 5

4/21TrustSuprema Signed a ₩12B trust contract to buy back shares.₩12B

4/21TrustSuprema HQ Signed a ₩8B trust contract to buy back shares.₩8B

4/21DisposalAton Plans to dispose of 5,000 sh of treasury stock, Apr 21 to Apr 22.₩33.9M

4/21Korea Export Packaging Industrial Share cancellation

4/21TS Share cancellation

Share issues & bonds 10

4/21AmendedRights offeringOrganic TEA Cosmetics Holdings Company Issuing 138,000,000 sh of new shares, equal to 55% of existing shares.₩18.4B

4/21CBADTechnology Conversion price ₩54,603; if all converted, equal to 15% of shares outstanding.₩130B

4/21CBYjlink Conversion price ₩6,308; if all converted, equal to 12.2% of shares outstanding.₩25B

4/21CBKumyang Green Power Conversion price ₩15,447; if all converted, equal to 10.5% of shares outstanding.₩22B

4/21AmendedMemRAY BT Convertible bond issue

4/21AmendedTera Science Rights offering

4/21AmendedHanWool & Jeju Rights offering

4/21AmendedHYUNGJI Innovation and Creative Company Rights offering

4/21AmendedNuin TEK Rights offering

4/21AmendedHanWool & Jeju Rights offering

M&A & spin-offs 6

4/21AmendedKG Eco Solution Stake acquisition/disposal

4/21Kginicis Stake acquisition/disposal

4/21AmendedModa-InnoChips Merger

4/21PNC Technologies Merger

4/21AmendedHanwha Spin-off / split

4/21RN2 Technologies Stake acquisition/disposal

Key filings, April 21, 2026

Supply contracts 9

Preliminary earnings 8

Insider trades 51

5% holders 46

Buybacks 5

Share issues & bonds 10

M&A & spin-offs 6

Exchange actions 27