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Key filings, September 8, 2026

318 filings · 11 highlights

← September 7, 2026 September 9, 2026 →

ContractHMMKOSPI

Contract value

₩4.70T

Of revenue

43.1%

Worth 43.1% of last year's revenue, over about 319 months.

2030-04-01 – 2056-10-31

Company filings →Original (Korean) ↗

ContractDae Myoung EnergyKOSDAQ

Contract value

₩44.7B

Of revenue

34.2%

Worth 34.2% of last year's revenue, over about 246 months.

2028-03-31 – 2048-09-30

Company filings →Original (Korean) ↗

ContractSeohanKOSDAQ

Contract value

₩218B

Of revenue

33.9%

Worth 33.9% of last year's revenue, over about 35 months.

2026-11-01 – 2029-10-02

Company filings →Original (Korean) ↗

InsiderBuyCowayKOSPI

Bought

₩10.4B

105,060 sh

10%+ shareholder bought 105,060 sh on the market at an average ₩99,001, Sep 3–8.

Company filings →Original (Korean) ↗

InsiderBuyHLB innoVationKOSDAQ

Bought

₩277.3M

20,400 sh

Director bought 20,400 sh on the market at an average ₩13,592, Aug 31–Sep 2.

Company filings →Original (Korean) ↗

InsiderBuyYuanta Securities KoreaKOSPI

Bought

₩248.5M

52,500 sh

10%+ shareholder bought 52,500 sh on the market at an average ₩4,733, Sep 2–8.

Company filings →Original (Korean) ↗

5% holderNew 5%KX HitechKOSDAQ

Stake

10.19%

Change

+10.19pp

A major holder's stake rose from 0.00% to 10.19%.

Company filings →Original (Korean) ↗

5% holderNew 5%GridwizKOSDAQ

Stake

8.19%

Change

+8.19pp

A major holder's stake rose from 0.00% to 8.19% (conversion/exercise).

Company filings →Original (Korean) ↗

5% holderNew 5%People & Technology MsKOSDAQ

Stake

5.70%

Change

+5.70pp

A major holder's stake rose from 0.00% to 5.70%.

Company filings →Original (Korean) ↗

BuybackTrustSammok S-FormKOSDAQ

Trust size

₩8B

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

Company filings →Original (Korean) ↗

BuybackTrustDualKOSPI

Trust size

₩5B

Signed a ₩5B trust contract to buy back shares.

Company filings →Original (Korean) ↗

Supply contracts 14

9/8HMM Worth 43.1% of last year's revenue, over about 319 months.₩4.70T

9/8Dae Myoung Energy Worth 34.2% of last year's revenue, over about 246 months.₩44.7B

9/8Seohan Worth 33.9% of last year's revenue, over about 35 months.₩218B

9/8AmendedWelcron Hantec Worth 16.2% of last year's revenue, over about 16 months.₩42.4B

9/8Chinhung International Worth 15.7% of last year's revenue.₩90.4B

9/8AmendedSamho Development Worth 14.7% of last year's revenue, over about 70 months.₩53.6B

9/8EG Worth 9.8% of last year's revenue, over about 20 months.₩6.2B

9/8AmendedKUMHO Engineering & Construction Worth 9.1% of last year's revenue, over about 36 months.₩186B

9/8AmendedXi S&D Worth 8.7% of last year's revenue.₩121B

9/8AmendedHD Hyundai Worth 8.5% of last year's revenue, over about 72 months.₩333B

9/8AmendedHD Korea Shipbuilding & Offshore Engineering Worth 8.5% of last year's revenue, over about 72 months.₩333B

9/8Kolon Worth 3.9% of last year's revenue.₩105B

9/8KolonGlobal Worth 3.9% of last year's revenue.₩105B

9/8SemiFive Single sales/supply contract

Insider trades 50

9/8BuyCoway 10%+ shareholder bought 105,060 sh on the market at an average ₩99,001, Sep 3–8.₩10.4B

9/8SaleVM An insider sold 60,000 sh on the market at an average ₩52,505, Sep 4–7.₩3.2B

9/8SaleSilicon 2 Director sold 20,772 sh on the market at an average ₩51,431, Sep 1–8.₩1.1B

9/8BuyHLB innoVation Director bought 20,400 sh on the market at an average ₩13,592, Aug 31–Sep 2.₩277.3M

9/8BuyYuanta Securities Korea 10%+ shareholder bought 52,500 sh on the market at an average ₩4,733, Sep 2–8.₩248.5M

9/8SaleVM An insider sold 2,500 sh on the market at an average ₩54,100, Sep 3.₩135.3M

9/8BuySJ Group CEO bought 57,100 sh on the market at an average ₩1,921, Sep 3–7.₩109.7M

9/8BuyKSS Line 10%+ shareholder bought 9,424 sh on the market at an average ₩10,250, Sep 8–9.₩96.6M

9/8SaleMirae Asset Venture Investment 10%+ shareholder sold 5,693 sh on the market at an average ₩14,746, Aug 26–Sep 8.₩83.9M

9/8BuyGenolution CEO bought 28,939 sh on the market at an average ₩1,369, Sep 1–10.₩39.6M

9/8BuyAztech WB An insider bought 18,920 sh on the market at an average ₩1,058, Aug 19–31.₩20M

9/8BuyAztech WB An insider bought 16,355 sh on the market at an average ₩1,061, Aug 19–28.₩17.3M

9/8BuyDB Securities Executive bought 1,600 sh on the market at an average ₩9,990, Sep 8.₩16M

9/8BuyToolGen Incorporated Director bought 300 sh on the market at an average ₩34,860, Sep 7.₩10.5M

9/8BuyDB Securities Executive bought 600 sh on the market at an average ₩9,890, Sep 8.₩5.9M

9/8BuyValofe CEO bought 2,000 sh on the market at an average ₩2,430, Sep 7.₩4.9M

9/8SaleNanoSilikhan Advanced Materials Director sold 900 sh on the market at an average ₩2,940, Mar 5.₩2.6M

9/8BuyDB Securities Executive bought 50 sh on the market at an average ₩9,870, Sep 4.₩493,500

9/8BuyDB Securities Executive bought 32 sh on the market at an average ₩9,863, Sep 1.₩315,616

9/8Other changeKohYoungTechnology Director's holding rose by 32,448 sh (new report).+32,448 sh

9/8Other changeKohYoungTechnology Director's holding rose by 147,749 sh (new report).+147,749 sh

9/8Other changeRobotis CEO's holding fell by 366,525 sh (other change).-366,525 sh

9/8Other changeAjin Electronic Components Outside director's holding rose by 40,900 sh (new report).+40,900 sh

9/8BuyDaishinInformation Director bought 1,008 sh on the market, Sep 4.₩0

9/8Other changeNousbo Executive's holding fell by 12,839 sh (share consolidation/split).-12,839 sh

9/8Other changeDukshinepc An insider's holding fell by 8,523,288 sh (share consolidation/split).-8,523,288 sh

9/8Other changeThe Lamy 10%+ shareholder's holding fell by 9,142,857 sh (share consolidation/split).-9,142,857 sh

9/8Other changeThe Lamy 10%+ shareholder's holding fell by 8,000,000 sh (share consolidation/split).-8,000,000 sh

9/8BuySTraffic An insider bought 4,000 sh on the market, Sep 1–7.₩0

9/8Other changeNanoSilikhan Advanced Materials Director's holding fell by 4,197 sh (share consolidation/split).-4,197 sh

9/8Other changeNanoSilikhan Advanced Materials Director's holding fell by 3,474 sh (share consolidation/split).-3,474 sh

9/8Other changeNanoSilikhan Advanced Materials Director's holding fell by 18,502 sh (share consolidation/split).-18,502 sh

9/8Other changeShinyoung Securities Director's holding rose by 510 sh (new report).+510 sh

9/8Other changeNanoSilikhan Advanced Materials Director's holding fell by 8,350 sh (share consolidation/split).-8,350 sh

9/8Other changeNanoSilikhan Advanced Materials Auditor's holding fell by 8,300 sh (share consolidation/split).-8,300 sh

9/8Other changeShinyoung Securities Director's holding rose by 590 sh (new report).+590 sh

9/8Other changeNanoSilikhan Advanced Materials Director's holding fell by 20,000 sh (share consolidation/split).-20,000 sh

9/8BuyIntelligent Digital Integrated Security An insider bought 8,711 sh on the market, Aug 31–Sep 7.₩0

9/8Other changeNanoSilikhan Advanced Materials 10%+ shareholder's holding fell by 1,859,364 sh (share consolidation/split).-1,859,364 sh

9/8Other changeHantop 10%+ shareholder's holding rose by 1,292,671 sh (rights offering).+1,292,671 sh

All insider trades →

5% holders 37

9/8New 5%KX Hitech A major holder's stake rose from 0.00% to 10.19%.10.19%

9/8New 5%Gridwiz A major holder's stake rose from 0.00% to 8.19% (conversion/exercise).8.19%

9/8New 5%People & Technology Ms A major holder's stake rose from 0.00% to 5.70%.5.70%

9/8New 5%Hanjoo ART A major holder's stake rose from 0.00% to 5.07% (open-market buy).5.07%

9/8New 5%Hanyang ENG A major holder's stake rose from 0.00% to 5.00%.5.00%

9/8Hantop A major holder's stake rose from 42.40% to 51.56% (rights offering).51.56%

9/8Below 5%DH Autolead A major holder's stake fell from 8.30% to 0.00%.0.00%

9/8Kangdong C&L A major holder's stake fell from 68.63% to 61.42%.61.42%

9/8Below 5%Rfhic A major holder's stake fell from 5.07% to 1.44%.1.44%

9/8Robotis A major holder's stake fell from 24.21% to 21.32%.21.32%

9/8Global Tax Free A major holder's stake rose from 5.83% to 8.43%.8.43%

9/8Below 5%Hotel Shilla A major holder's stake fell from 6.85% to 4.39% (new report).4.39%

9/8NanoSilikhan Advanced Materials A major holder's stake fell from 7.44% to 5.08%.5.08%

9/8SSR A major holder's stake fell from 8.64% to 6.61%.6.61%

9/8Union Semiconductor Equipment Co.,ltd;A major holder's stake rose from 5.03% to 6.98%.6.98%

9/8Anapass A major holder's stake rose from 14.80% to 16.06%.16.06%

9/8SystemandApplicationTechnologies A major holder's stake rose from 42.14% to 43.18%.43.18%

9/8Focus AI A major holder's stake rose from 7.33% to 8.34% (open-market buy).8.34%

9/8HD Hyundai Heavy Industries National Pension Service's stake rose from 7.38% to 8.02%.8.02%

9/8SJ Group A major holder's stake rose from 55.42% to 56.03% (open-market buy).56.03%

9/8The Lamy A major holder's stake rose from 54.17% to 54.75% (open-market buy).54.75%

9/8Hanmi Pharm.A major holder's stake fell from 50.08% to 49.55% (conversion/exercise).49.55%

9/8KohYoungTechnology A major holder's stake rose from 20.66% to 20.93% (related-party change).20.93%

9/8Below 5%KohYoungTechnology A major holder's stake fell from 5.11% to 4.91% (related-party change).4.91%

9/8Cntus A major holder's stake rose from 49.19% to 49.33%.49.33%

9/8Great New wave Coming A major holder's stake rose from 73.88% to 73.95% (open-market buy).73.95%

9/8Mecaro A major holder's stake fell from 53.02% to 53.00% (open-market sale).53.00%

9/8Yg-1 A major holder's stake rose from 31.03% to 31.03% (pledge).31.03%

9/8Kumyang Green Power A major holder's stake rose from 57.70% to 57.70% (pledge).57.70%

9/8Dukshinepc A major holder's stake rose from 32.88% to 32.88% (share consolidation/split).32.88%

9/8Hyundai Bioscience A major holder's stake rose from 12.05% to 12.05% (pledge).12.05%

9/8KCC A major holder's stake rose from 35.56% to 35.56% (share lending).35.56%

9/8Asiana Airlines A major holder's stake rose from 11.12% to 11.12%.11.12%

9/8Ecopro BM A major holder's stake rose from 45.23% to 45.23%.45.23%

9/8Ecopro A major holder's stake rose from 25.53% to 25.53% (pledge).25.53%

9/8SAMBO Industrial A major holder's stake rose from 40.43% to 40.43% (share consolidation/split).40.43%

9/8C&G Hi Tech A major holder's stake rose from 34.36% to 34.36% (pledge).34.36%

Buybacks 5

9/8TrustSammok S-Form Signed a ₩8B trust contract to buy back shares.₩8B

9/8TrustDual Signed a ₩5B trust contract to buy back shares.₩5B

9/8TrustAdvanced Process Systems Ended a share buyback trust contract.₩3B

9/8TrustBbia Ended a share buyback trust contract.₩3B

9/8RF Materials Share cancellation

Share issues & bonds 7

9/8AmendedRights offeringNanocms Issuing 963,080 sh of new shares, equal to 18.4% of existing shares.₩3B

9/8AmendedCBSungho Electronics Conversion price ₩17,192; if all converted, equal to 1% of shares outstanding.₩13B

9/8AmendedSeoul Electronics & Telecom Rights offering

9/8AmendedSambu Construction Rights offering

9/8AmendedHLB Pharmaceutical Rights offering

9/8THE Codi Convertible bond issue

9/8AmendedTHE Codi Rights offering

M&A & spin-offs 3

9/8AmendedBGF Merger

9/8BioInfra Merger

9/8AmendedBGFecomaterials Merger

Exchange actions 8

9/8Exion Group Company Exchange

9/8Abion Spin-off / split

9/8OSP Exchange

9/8Good People Spin-off / split

9/8CammSys Spin-off / split

9/8Wise birds Trading halt

9/8Joongang Advanced Materials Trading halt

9/8Shin HWA Dynamics Investment caution