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Key filings, April 27, 2026

417 filings · 10 highlights

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ContractDae Myoung EnergyKOSDAQ

Contract value

₩136B

Of revenue

103.8%

Worth 103.8% of last year's revenue, over about 34 months.

2026-04-24 – 2029-03-01

Company filings →Original (Korean) ↗

ContractHJ Shipbuilding & ConstructionKOSPI

Contract value

₩357B

Of revenue

17.9%

Worth 17.9% of last year's revenue, over about 30 months.

2026-04-24 – 2028-10-31

Company filings →Original (Korean) ↗

ContractNsysKOSDAQ

Contract value

₩8.6B

Of revenue

17.5%

Worth 17.5% of last year's revenue, over about 4 months.

2026-04-27 – 2026-08-30

Company filings →Original (Korean) ↗

EarningsSwung to profitFaduKOSDAQ

Operating profit

₩7.7B

Same quarter last year

-₩12B

Operating profit: swung to profit (-₩12B → ₩7.7B). Revenue ₩59.5B, up 209.8% YoY.

Q1 2026 · Separate

Company filings →Original (Korean) ↗

EarningsST PharmKOSDAQ

Operating profit

₩11.5B

YoY

+1024.8%

Operating profit ₩11.5B, up 1024.8% YoY. Revenue ₩67B, up 27.7% YoY.

Q1 2026 · Separate

Company filings →Original (Korean) ↗

EarningsHD Construction EquipmentKOSPI

Operating profit

₩191B

YoY

+357.3%

Operating profit ₩191B, up 357.3% YoY. Revenue ₩2.30T, up 154.2% YoY.

Q1 2026 · Separate

Company filings →Original (Korean) ↗

5% holderNew 5%DkmeKOSPI

Stake

30.76%

Change

+30.76pp

A major holder's stake rose from 0.00% to 30.76% (new report).

Company filings →Original (Korean) ↗

5% holderNew 5%Silicon 2KOSDAQ

Stake

6.72%

Change

+6.72pp

A major holder's stake rose from 0.00% to 6.72%.

Company filings →Original (Korean) ↗

5% holderNew 5%TKG HuchemsKOSPI

Stake

6.45%

Change

+6.45pp

A major holder's stake rose from 0.00% to 6.45% (conversion/exercise).

Company filings →Original (Korean) ↗

IssuanceCapital reductionNGeneBioKOSDAQ

Reduction

66.7%

Capital reduction of 66.7%.

Company filings →Original (Korean) ↗

Supply contracts 17

4/27Dae Myoung Energy Worth 103.8% of last year's revenue, over about 34 months.₩136B

4/27AmendedSamho Development Worth 65.9% of last year's revenue, over about 53 months.₩209B

4/27AmendedEXA E&C Worth 25.5% of last year's revenue, over about 15 months.₩51.9B

4/27HJ Shipbuilding & Construction Worth 17.9% of last year's revenue, over about 30 months.₩357B

4/27Nsys Worth 17.5% of last year's revenue, over about 4 months.₩8.6B

4/27Charm Engineering Worth 17.3% of last year's revenue, over about 6 months.₩10.4B

4/27PIE Worth 14.3% of last year's revenue, over about 12 months.₩9.3B

4/27AmendedNRB Worth 13.6% of last year's revenue, over about 10 months.₩8.1B

4/27AmendedWoori Technology, In Worth 10.9% of last year's revenue, over about 23 months.₩6.9B

4/27AmendedHansung Cleantech Worth 10.6% of last year's revenue, over about 14 months.₩16.5B

4/27AmendedNsys Worth 10% of last year's revenue, over about 15 months.₩4.9B

4/27Charm Engineering Worth 8.7% of last year's revenue, over about 3 months.₩5.2B

4/27AmendedDong-Ah Geological Engineering Company Worth 8.4% of last year's revenue, over about 114 months.₩27.2B

4/27AmendedHyundai-Rotem Worth 8.2% of last year's revenue.₩293B

4/27AmendedYest Worth 7.6% of last year's revenue, over about 12 months.₩7.6B

4/27LS Marine Solution Supply contract terminated

4/27LS Supply contract terminated

Preliminary earnings 25

4/27Swung to profitFadu Operating profit: swung to profit (-₩12B → ₩7.7B). Revenue ₩59.5B, up 209.8% YoY.₩7.7B

4/27ST Pharm Operating profit ₩11.5B, up 1024.8% YoY. Revenue ₩67B, up 27.7% YoY.₩11.5B

4/27HD Construction Equipment Operating profit ₩191B, up 357.3% YoY. Revenue ₩2.30T, up 154.2% YoY.₩191B

4/27RF Systems Operating profit ₩1.1B, up 285.6% YoY. Revenue ₩10B, up 50.3% YoY.₩1.1B

4/27RF Materials Operating profit ₩3.1B, up 274.7% YoY. Revenue ₩20B, up 69.6% YoY.₩3.1B

4/27ISC Operating profit ₩23.6B, up 237.8% YoY. Revenue ₩68.3B, up 115.5% YoY.₩23.6B

4/27LG Innotek Operating profit ₩295B, up 136% YoY. Revenue ₩5.53T, up 11.1% YoY.₩295B

4/27Rfhic Operating profit ₩7.7B, up 107.2% YoY. Revenue ₩43.1B, up 35.1% YoY.₩7.7B

4/27Ahnlab Operating profit ₩1.9B, up 84.4% YoY. Revenue ₩59.1B, up 3.3% YoY.₩1.9B

4/27Whanin Pharm Operating profit ₩9.4B, up 77.7% YoY. Revenue ₩71.2B, up 18.2% YoY.₩9.4B

4/27i-SENS Operating profit ₩813M, down 74.9% YoY. Revenue ₩74.5B, down 2.3% YoY.₩813M

4/27Ahnlab Operating profit ₩4.9B, up 70.6% YoY. Revenue ₩52.3B, up 2.9% YoY.₩4.9B

4/27Hanwha Ocean Operating profit ₩441B, up 70.6% YoY. Revenue ₩3.21T, up 2.1% YoY.₩441B

4/27Dong-A ST Operating profit ₩10.8B, up 53.7% YoY. Revenue ₩187B, up 10.7% YoY.₩10.8B

4/27Ipark Hyundai Development Company Operating profit ₩80.1B, up 48.4% YoY. Revenue ₩674B, down 25.6% YoY.₩80.1B

4/27Deutsch Motors Operating profit ₩10.5B, up 32.2% YoY. Revenue ₩637B, up 10.2% YoY.₩10.5B

4/27HS Hyosung Advanced Materials Operating profit ₩34.4B, down 29.9% YoY. Revenue ₩829B, down 2.9% YoY.₩34.4B

4/27Hansol Technics Operating profit ₩14.1B, down 26.9% YoY. Revenue ₩316B, down 6.5% YoY.₩14.1B

4/27Hansol Logistics Operating profit ₩4.5B, down 21% YoY. Revenue ₩165B, down 5.3% YoY.₩4.5B

4/27Savezone I&C Operating profit ₩1.3B, down 7.9% YoY. Revenue ₩28.9B, down 1.8% YoY.₩1.3B

4/27NI Steel Operating profit ₩6.2B, down 6.7% YoY. Revenue ₩56.7B, up 5.2% YoY.₩6.2B

4/27Dong-A Pharmaceutical Operating profit ₩19.1B, down 6% YoY. Revenue ₩351B, up 6.9% YoY.₩19.1B

4/27Hanwha Systems Operating profit ₩34.3B, up 1.9% YoY. Revenue ₩807B, up 17% YoY.₩34.3B

4/27Loss narrowedGraphy Operating profit: loss narrowed (-₩3.6B → -₩3.5B). Revenue ₩3.4B, up 47.4% YoY.-₩3.5B

4/27Loss narrowedSKC Operating profit: loss narrowed (-₩74B → -₩28.7B). Revenue ₩497B, up 13.4% YoY.-₩28.7B

Insider trades 68

4/27S2w Insider ownership report

4/27Oncocross Insider ownership report

4/27S2w Insider ownership report

4/27Chorokbaem Media Insider ownership report

4/27Yuanta Securities Korea Insider ownership report

4/27SKC Insider ownership report

4/27Yuanta Securities Korea Insider ownership report

4/27SKC Insider ownership report

4/27Mekics Insider ownership report

4/27SKC Insider ownership report

4/27Sapien Semiconductors Insider ownership report

4/27KZ Precision Insider ownership report

4/27AJ Networks Insider ownership report

4/27AmendedTrinity Airways Insider ownership report

4/27AmendedMetabiomed Insider ownership report

4/27Krafton Insider ownership report

4/27BYC Insider ownership report

4/27AmendedMetabiomed Insider ownership report

4/27DY Power Insider ownership report

4/27Hanyang Securities Insider ownership report

4/27KEC Insider ownership report

4/27Fantagio Insider ownership report

4/27Vivien Insider ownership report

4/27Hanjoo Light Metal Insider ownership report

4/27Eco Volt Insider ownership report

4/27Samchully Insider ownership report

4/27Sapien Semiconductors Insider ownership report

4/27SSR Insider ownership report

4/27Mintech Insider ownership report

4/27Nongshim Insider ownership report

4/27Miwon Specialty Chemical Insider ownership report

All insider trades →

5% holders 40

4/27New 5%Dkme A major holder's stake rose from 0.00% to 30.76% (new report).30.76%

4/27New 5%Silicon 2 A major holder's stake rose from 0.00% to 6.72%.6.72%

4/27New 5%TKG Huchems A major holder's stake rose from 0.00% to 6.45% (conversion/exercise).6.45%

4/27New 5%Finger A major holder's stake rose from 0.00% to 5.85%.5.85%

4/27New 5%Intekplus A major holder's stake rose from 4.94% to 5.37%.5.37%

4/27New 5%P&H Tech A major holder's stake rose from 4.83% to 5.22%.5.22%

4/27New 5%Kolon Industries A major holder's stake rose from 4.83% to 5.04%.5.04%

4/27Silicon 2 A major holder's stake fell from 50.58% to 43.62% (stock option).43.62%

4/27Chorokbaem Media A major holder's stake rose from 60.14% to 63.24% (open-market buy).63.24%

4/27EOFlow A major holder's stake fell from 10.10% to 7.46% (pledge).7.46%

4/27Below 5%Bowon Chemical A major holder's stake fell from 5.53% to 3.02% (open-market sale).3.02%

4/27Pum-Tech Korea A major holder's stake fell from 9.99% to 8.06%.8.06%

4/27Eco Volt A major holder's stake rose from 28.03% to 29.93%.29.93%

4/27NICE Information Service A major holder's stake rose from 5.02% to 6.49%.6.49%

4/27d'Alba Global A major holder's stake fell from 30.32% to 28.88%.28.88%

4/27Q Capital Partners A major holder's stake rose from 39.24% to 40.53% (open-market buy).40.53%

4/27C&G Hi Tech A major holder's stake fell from 36.61% to 35.58% (share lending).35.58%

4/27LiComm A major holder's stake fell from 58.87% to 58.01% (related-party change).58.01%

4/27Fantagio A major holder's stake fell from 58.83% to 58.16% (conversion/exercise).58.16%

4/27SSR A major holder's stake rose from 48.32% to 48.77% (open-market buy).48.77%

4/27AmendedHanjoo Light Metal A major holder's stake rose from 12.51% to 12.66% (open-market buy).12.66%

4/27Hanjoo Light Metal A major holder's stake rose from 12.66% to 12.80% (open-market buy).12.80%

4/27Woorim Power Train Solution A major holder's stake rose from 55.34% to 55.44% (open-market buy).55.44%

4/27V-One Tech A major holder's stake rose from 47.11% to 47.21% (open-market buy).47.21%

4/27DUK SAN Neolux A major holder's stake rose from 43.98% to 44.05% (related-party change).44.05%

4/27AJ Networks A major holder's stake fell from 55.96% to 55.89% (open-market buy).55.89%

4/27Humedix A major holder's stake rose from 37.45% to 37.52% (open-market buy).37.52%

4/27CS Wind A major holder's stake fell from 38.96% to 38.91% (related-party change).38.91%

4/27DY Power A major holder's stake rose from 38.53% to 38.54% (open-market buy).38.54%

4/27Cosmochemical A major holder's stake rose from 30.54% to 30.54% (pledge).30.54%

4/27Insun Environmental NEW Technology A major holder's stake rose from 44.97% to 44.97%.44.97%

4/27Macrogen A major holder's stake rose from 20.13% to 20.13% (related-party change).20.13%

4/27Bookook Securities A major holder's stake rose from 34.54% to 34.54% (share lending).34.54%

4/27Vivien Report of 5%+ holding

4/27Cntus A major holder's stake rose from 48.92% to 48.92%.48.92%

4/27Mntech A major holder's stake rose from 22.50% to 22.50%.22.50%

4/27Lotte Energy Materials A major holder's stake rose from 19.96% to 19.96% (conversion/exercise).19.96%

4/27Moda-InnoChips A major holder's stake rose from 75.69% to 75.69% (share lending).75.69%

4/27SNT Holdings A major holder's stake rose from 9.13% to 9.13%.9.13%

4/27Shinsung E&G A major holder's stake rose from 20.76% to 20.76% (pledge).20.76%

Buybacks 8

4/27DisposalSK Telecom Plans to dispose of 51,952 sh of treasury stock, Apr 28 to May 31.₩5.2B

4/27DisposalDaekyo Plans to dispose of 1,769,968 sh of treasury stock, May 28 to Jun 4.₩2.8B

4/27TrustSebo Manufacturing Engineering Signed a ₩2B trust contract to buy back shares.₩2B

4/27Amotech Share cancellation

4/27Makus Share cancellation

4/27Sebo Manufacturing Engineering Share cancellation

4/27SK Treasury stock disposal

4/27AmendedChokwang Paint Treasury stock disposal

Share issues & bonds 12

4/27Capital reductionNGeneBio Capital reduction of 66.7%.66.7%

4/27Alux Rights offering

4/27AK Holdings Rights offering

4/27Aekyung Chemical Rights offering

4/27AmendedHyulim A-Tech Rights offering

4/27AmendedJOL Capital reduction

4/27AmendedNRobotics Rights offering

4/27NGeneBio Rights offering

4/27AmendedItoxi Rights offering

4/27AmendedNuin TEK Rights offering

4/27AmendedMemRAY BT Convertible bond issue

4/27AmendedSI Resources Rights offering

M&A & spin-offs 1

4/27AmendedARIBIO Holdings Merger

Key filings, April 27, 2026

Supply contracts 17

Preliminary earnings 25

Insider trades 68

5% holders 40

Buybacks 8

Share issues & bonds 12

M&A & spin-offs 1

Exchange actions 15