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Key filings, August 19, 2026

287 filings · 10 highlights

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ContractGigaVisKOSDAQ

Contract value

₩9B

Of revenue

17.1%

Worth 17.1% of last year's revenue, over about 13 months.

2026-08-18 – 2027-09-30

Company filings →Original (Korean) ↗

ContractSensorviewKOSDAQ

Contract value

₩2.8B

Of revenue

14.5%

Worth 14.5% of last year's revenue, over about 44 months.

2026-08-18 – 2030-04-17

Company filings →Original (Korean) ↗

InsiderBuyCowayKOSPI

Bought

₩13.4B

138,500 sh

10%+ shareholder bought 138,500 sh on the market at an average ₩96,616, Aug 12–19.

Company filings →Original (Korean) ↗

InsiderBuyeSANGNetworksKOSDAQ

Bought

₩195.3M

24,967 sh

10%+ shareholder bought 24,967 sh on the market at an average ₩7,821, Jun 24–Aug 18.

Company filings →Original (Korean) ↗

5% holderNew 5%DealiciousKOSDAQ

Stake

29.47%

Change

+29.47pp

A major holder's stake rose from 0.00% to 29.47%.

Company filings →Original (Korean) ↗

5% holderKwangjinIndKOSDAQ

Stake

5.68%

Change

-28.80pp

A major holder's stake fell from 34.48% to 5.68%.

Company filings →Original (Korean) ↗

5% holderNew 5%DealiciousKOSDAQ

Stake

8.73%

Change

+8.73pp

A major holder's stake rose from 0.00% to 8.73%.

Company filings →Original (Korean) ↗

BuybackBuybackSK hynixKOSPI

Planned buyback

₩40.00T

24,070,000 sh

Plans to buy back 24,070,000 sh of treasury stock, Aug 20 to Nov 19.

Company filings →Original (Korean) ↗

IssuanceRights offeringHeng Sheng Holding Group CompanyKOSDAQ

Raising

₩5.2B

Dilution

16.3%

Issuing 1,749,353 sh of new shares, equal to 16.3% of existing shares.

Company filings →Original (Korean) ↗

IssuanceCBKX HitechKOSDAQ

Issue size

₩11B

If all converted

10.2%

Conversion price ₩1,264; if all converted, equal to 10.2% of shares outstanding.

Company filings →Original (Korean) ↗

Supply contracts 18

8/19AmendedDypnf Worth 83.6% of last year's revenue, over about 19 months.₩120B

8/19AmendedAsicland Worth 56.2% of last year's revenue, over about 31 months.₩41B

8/19AmendedSamsung E&A Worth 21.4% of last year's revenue.₩1.60T

8/19GigaVis Worth 17.1% of last year's revenue, over about 13 months.₩9B

8/19Sensorview Worth 14.5% of last year's revenue, over about 44 months.₩2.8B

8/19AmendedBHI Worth 13.6% of last year's revenue, over about 35 months.₩54.9B

8/19AmendedTSI Worth 12.6% of last year's revenue, over about 22 months.₩32.8B

8/19AmendedWoniltni Worth 10.7% of last year's revenue, over about 11 months.₩4.5B

8/19Wot Worth 6.2% of last year's revenue, over about 7 months.₩948M

8/19HDC Holdings Worth 5.9% of last year's revenue.₩245B

8/19Ipark Hyundai Development Company Worth 5.9% of last year's revenue.₩245B

8/19AmendedKolon Worth 5.2% of last year's revenue.₩181B

8/19AmendedKolonGlobal Worth 5.2% of last year's revenue.₩181B

8/19AmendedKolon Worth 5.2% of last year's revenue, over about 34 months.₩138B

8/19AmendedKolonGlobal Worth 5.2% of last year's revenue, over about 34 months.₩138B

8/19Daewoo Engineering & Construction Worth 3.9% of last year's revenue.₩313B

8/19AmendedSamsung C&T Worth 3.7% of last year's revenue, over about 58 months.₩1.54T

8/19AmendedYAS Single sales/supply contract

Preliminary earnings 1

8/19Loss widenedZGOO Holdings Operating profit: loss widened (-₩205M → -₩549M). Revenue ₩12B, up 76% YoY.-₩549M

Insider trades 58

8/19BuyCoway 10%+ shareholder bought 138,500 sh on the market at an average ₩96,616, Aug 12–19.₩13.4B

8/19SaleDealicious 10%+ shareholder sold 901,238 sh on the market at an average ₩5,764, Aug 14–19.₩5.2B

8/19Net saleY2 Solution 10%+ shareholder bought 9,107 sh and sold 866,585 sh, Jun 12–May 8: net sale of 857,478 sh.₩19.7M

8/19BuyeSANGNetworks 10%+ shareholder bought 24,967 sh on the market at an average ₩7,821, Jun 24–Aug 18.₩195.3M

8/19BuyIGIS Value Plus REIT 10%+ shareholder bought 16,616 sh on the market at an average ₩3,703, Aug 12–19.₩61.5M

8/19BuyZungwon En-Sys Director bought 47,400 sh on the market at an average ₩1,071, Aug 12–19.₩50.8M

8/19BuySFA Engineering CEO bought 1,930 sh on the market at an average ₩24,900, Aug 18.₩48.1M

8/19BuyHyungkuk F&B CEO bought 28,194 sh on the market at an average ₩1,161, Aug 11–18.₩32.7M

8/19BuyPrestige BioPharma An insider bought 4,320 sh on the market at an average ₩6,885, Aug 10–14.₩29.7M

8/19BuySFA Engineering President bought 1,228 sh on the market at an average ₩23,951, Aug 18.₩29.4M

8/19BuyIS Dongseo CEO bought 1,000 sh on the market at an average ₩16,230, Aug 19.₩16.2M

8/19BuyNBT Executive bought 8,794 sh on the market at an average ₩1,407, Aug 13–14.₩12.4M

8/19BuyPosco Future M An insider bought 70 sh on the market at an average ₩158,486, Jun 26–Aug 14.₩11.1M

8/19BuyNatureandEnvironment CEO bought 2,406 sh on the market at an average ₩3,239, Aug 18–19.₩7.8M

8/19BuyMeatBox Global Director bought 1,000 sh on the market at an average ₩5,638, Jun 26–Aug 12.₩5.6M

8/19BuyEM-Tech.Outside director bought 1,330 sh on the market at an average ₩4,038, Jul 29–Aug 18.₩5.4M

8/19Net buyFSN CEO bought 70,000 sh and sold 70,000 sh, Aug 19: net buy of 0 sh.₩99.7M

8/19Other changeKeyang Electric Machinery President's holding rose by 117,981 sh (other change).+117,981 sh

8/19Other changeKeyang Electric Machinery Chairman's holding rose by 119,346 sh (other change).+119,346 sh

8/19Other changeLB Semicon Director's holding fell by 288,199 sh (other change).-288,199 sh

8/19BuyFrom Bio Director bought 1,382 sh on the market, Aug 13.₩0

8/19AmendedOther changeLB Semicon An insider's holding rose by 654,054 sh (other change, rights offering).+654,054 sh

8/19Other changeAprilBio Director's holding rose by 11,500 sh (stock option).+11,500 sh

8/19Other changeKeyang Electric Machinery 10%+ shareholder's holding rose by 2,143,792 sh (other change).+2,143,792 sh

8/19Other changeAprilBio An insider's holding rose by 32,000 sh (stock option).+32,000 sh

8/19Other changeAprilBio Director's holding rose by 6,000 sh (stock option).+6,000 sh

8/19BuyES Cube An insider bought 77,830 sh on the market, Aug 12–19.₩0

8/19Other changeLB Semicon An insider's holding rose by 654,054 sh (other change, rights offering).+654,054 sh

8/19Other changeAmotech President's holding rose by 600 sh (bonus issue).+600 sh

8/19Other changeBooster Director's holding rose by 676 sh (bonus issue).+676 sh

8/19Other changeBooster Director's holding rose by 1,952 sh (bonus issue).+1,952 sh

8/19Other changeAmotech President's holding rose by 64,800 sh (bonus issue).+64,800 sh

8/19Other changeBooster Director's holding rose by 877 sh (bonus issue).+877 sh

8/19Other changeBooster Director's holding rose by 4,599 sh (bonus issue).+4,599 sh

8/19Other changeAmotech CEO's holding rose by 300,287 sh (bonus issue).+300,287 sh

8/19Other changeBooster Director's holding rose by 1,002 sh (bonus issue).+1,002 sh

8/19Other changeBooster Director's holding rose by 977 sh (bonus issue).+977 sh

8/19Other changeBooster Director's holding rose by 1,877 sh (bonus issue).+1,877 sh

8/19Other changeBooster Director's holding rose by 2,660 sh (bonus issue).+2,660 sh

8/19Other changeYeonghwa Metal CEO's holding fell by 3,856,520 sh (share consolidation/split).-3,856,520 sh

All insider trades →

5% holders 36

8/19New 5%Dealicious A major holder's stake rose from 0.00% to 29.47%.29.47%

8/19KwangjinInd A major holder's stake fell from 34.48% to 5.68%.5.68%

8/19New 5%Dealicious A major holder's stake rose from 0.00% to 8.73%.8.73%

8/19New 5%Y2 Solution A major holder's stake rose from 0.00% to 8.35%.8.35%

8/19New 5%Dealicious A major holder's stake rose from 0.00% to 7.42% (new report).7.42%

8/19Noul A major holder's stake fell from 18.18% to 10.37%.10.37%

8/19Below 5%OptiCore A major holder's stake fell from 5.02% to 0.00% (conversion/exercise).0.00%

8/19Bonne A major holder's stake rose from 32.84% to 37.70%.37.70%

8/19LB Semicon A major holder's stake fell from 31.11% to 28.17% (rights offering).28.17%

8/19Below 5%GnBS e A major holder's stake fell from 6.54% to 3.65%.3.65%

8/19Gaeasoft A major holder's stake rose from 10.24% to 11.38%.11.38%

8/19Yeonghwa Metal A major holder's stake rose from 26.04% to 27.17% (share consolidation/split).27.17%

8/19Dream Security A major holder's stake rose from 40.45% to 41.56%.41.56%

8/19From Bio A major holder's stake rose from 40.35% to 41.36% (related-party change).41.36%

8/19Soosan INT A major holder's stake rose from 63.06% to 63.76% (open-market buy).63.76%

8/19Below 5%Samsung Fire & Marine Insurance A major holder's stake fell from 5.04% to 4.43%.4.43%

8/19eSANGNetworks A major holder's stake rose from 15.42% to 15.79%.15.79%

8/19Jaeyoung Solutec A major holder's stake rose from 14.26% to 14.52%.14.52%

8/19Hyungkuk F&B A major holder's stake rose from 51.23% to 51.45% (open-market buy).51.45%

8/19NatureandEnvironment A major holder's stake rose from 12.59% to 12.79% (open-market buy).12.79%

8/19Ilwoul GML A major holder's stake rose from 46.36% to 46.43%.46.43%

8/19SM Entertainment A major holder's stake fell from 7.42% to 7.37% (related-party change).7.37%

8/19The Pinkfong Company A major holder's stake fell from 36.40% to 36.36% (gift).36.36%

8/19Prestige BioPharma A major holder's stake rose from 52.42% to 52.46% (related-party change).52.46%

8/19FSN A major holder's stake rose from 28.94% to 28.95% (pledge).28.95%

8/19Pond Group A major holder's stake rose from 76.59% to 76.59% (pledge).76.59%

8/19Daou Technology A major holder's stake rose from 49.02% to 49.02% (pledge).49.02%

8/19E-World A major holder's stake rose from 62.64% to 62.64%.62.64%

8/19Camus Engineering & Construction A major holder's stake rose from 54.67% to 54.67% (pledge).54.67%

8/19IL A major holder's stake rose from 21.15% to 21.15%.21.15%

8/19SK Discovery A major holder's stake rose from 56.46% to 56.46% (pledge).56.46%

8/19T&R Biofab A major holder's stake rose from 15.03% to 15.03%.15.03%

8/19HanJungNCS.A major holder's stake rose from 36.51% to 36.51% (pledge).36.51%

8/19AmendedEnchem A major holder's stake rose from 9.58% to 9.58% (share lending).9.58%

8/19Samhwa Networks A major holder's stake rose from 38.57% to 38.57% (share lending).38.57%

8/19IS Dongseo A major holder's stake rose from 55.89% to 55.89% (related-party change).55.89%

Buybacks 9

8/19BuybackSK hynix Plans to buy back 24,070,000 sh of treasury stock, Aug 20 to Nov 19.₩40.00T

8/19TrustEcstelecom Signed a ₩3B trust contract to buy back shares.₩3B

8/19TrustLindeman Asia Investment Signed a ₩500M trust contract to buy back shares.₩500M

8/19JTC Share cancellation

8/19Oyang Share cancellation

8/19SK Square Share cancellation

8/19SK hynix Share cancellation

8/19SK Square Treasury stock acquisition

8/19AmendedNamsung Treasury stock disposal

Share issues & bonds 13

8/19AmendedRights offeringSSR Issuing 1,902,173 sh of new shares, equal to 36.2% of existing shares.₩7B

8/19AmendedRights offeringAgent AI Issuing 1,659,856 sh of new shares, equal to 34% of existing shares.₩6.5B

8/19AmendedRights offeringMDSsphere Issuing 4,602,054 sh of new shares, equal to 29.2% of existing shares.₩8.5B

8/19Rights offeringHeng Sheng Holding Group Company Issuing 1,749,353 sh of new shares, equal to 16.3% of existing shares.₩5.2B

8/19CBKX Hitech Conversion price ₩1,264; if all converted, equal to 10.2% of shares outstanding.₩11B

8/19AmendedVictory Contents Convertible bond issue

8/19AmendedSeoul Electronics & Telecom Rights offering

8/19AmendedBlue Industrial Development Rights offering

8/19AmendedAdbiotech Convertible bond issue

8/19AmendedUnion Korea Pharm Rights offering

8/19SSR Rights offering

M&A & spin-offs 3

8/19AmendedCXI Healthcare Technology Group A ₩313B deal, equal to 63.4% of total assets.₩313B

8/19SJG Sejong Merger

8/19SSR Business transfer

Key filings, August 19, 2026

Supply contracts 18

Preliminary earnings 1

Insider trades 58

5% holders 36

Buybacks 9

Share issues & bonds 13

M&A & spin-offs 3

Exchange actions 15