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Key filings, May 20, 2026

367 filings · 8 highlights

← May 19, 2026 May 21, 2026 →

ContractProtec Mems TechnologyKOSDAQ

Contract value

₩6.6B

Of revenue

25.9%

Worth 25.9% of last year's revenue, over about 3 months.

2026-05-19 – 2026-08-13

Company filings →Original (Korean) ↗

ContractBeno TNRKOSDAQ

Contract value

₩1.1B

Of revenue

22.9%

Worth 22.9% of last year's revenue, over about 12 months.

2026-05-26 – 2027-05-13

Company filings →Original (Korean) ↗

ContractHisteelKOSPI

Contract value

₩37.6B

Of revenue

14.7%

Worth 14.7% of last year's revenue, over about 7 months.

2026-05-20 – 2026-12-31

Company filings →Original (Korean) ↗

5% holderNew 5%SanigenKOSDAQ

Stake

52.10%

Change

+52.10pp

A major holder's stake rose from 0.00% to 52.10% (rights offering).

Company filings →Original (Korean) ↗

5% holderNew 5%PoledKOSDAQ

Stake

29.22%

Change

+29.22pp

A major holder's stake rose from 0.00% to 29.22% (new report).

Company filings →Original (Korean) ↗

5% holderNew 5%GMI VentureKOSDAQ

Stake

8.30%

Change

+8.30pp

A major holder's stake rose from 0.00% to 8.30% (conversion/exercise).

Company filings →Original (Korean) ↗

IssuanceRights offeringBK HoldingsKOSDAQ

Raising

₩3B

Dilution

19%

Issuing 3,750,000 sh of new shares, equal to 19% of existing shares.

Company filings →Original (Korean) ↗

IssuanceCBKorea PharmaKOSDAQ

Issue size

₩15B

If all converted

11.3%

Conversion price ₩10,782; if all converted, equal to 11.3% of shares outstanding.

Company filings →Original (Korean) ↗

Supply contracts 25

5/20AmendedSphere Worth 40.4% of last year's revenue, over about 13 months.₩1B

5/20AmendedTomatosystem Worth 26.4% of last year's revenue, over about 21 months.₩7B

5/20Protec Mems Technology Worth 25.9% of last year's revenue, over about 3 months.₩6.6B

5/20AmendedSamil Enterpri Worth 24% of last year's revenue, over about 13 months.₩27B

5/20Beno TNR Worth 22.9% of last year's revenue, over about 12 months.₩1.1B

5/20AmendedTSI Worth 21.9% of last year's revenue, over about 35 months.₩32.5B

5/20Histeel Worth 14.7% of last year's revenue, over about 7 months.₩37.6B

5/20Axbis Worth 14.1% of last year's revenue, over about 1 month.₩8B

5/20Samsung Electro-Mechanics Worth 13.8% of last year's revenue, over about 24 months.₩1.56T

5/20SemiFive Worth 12.2% of last year's revenue, over about 19 months.₩14.7B

5/20Curexo Worth 11.4% of last year's revenue, over about 7 months.₩8.5B

5/20AmendedAdvanced Process Systems Worth 10.9% of last year's revenue, over about 11 months.₩56.6B

5/20Yuhan Worth 9.6% of last year's revenue, over about 19 months.₩210B

5/20AmendedIljin Power Worth 8.5% of last year's revenue, over about 25 months.₩16.3B

5/20AmendedCK Solution Worth 8.2% of last year's revenue, over about 19 months.₩24.2B

5/20Mirae Worth 7.8% of last year's revenue, over about 5 months.₩4B

5/20VAIV company Worth 6.5% of last year's revenue, over about 8 months.₩960.4M

5/20AmendedJoosung Worth 6.4% of last year's revenue, over about 18 months.₩1.5B

5/20AmendedDL Holdings Worth 5.3% of last year's revenue, over about 29 months.₩445B

5/20AmendedDL E&C Worth 5.3% of last year's revenue, over about 29 months.₩445B

5/20Mirae Worth 5.2% of last year's revenue, over about 1 month.₩2.6B

5/20GS Engineering & Construction Worth 4.5% of last year's revenue.₩565B

5/20AmendedDL Holdings Worth 3.2% of last year's revenue, over about 47 months.₩256B

5/20AmendedDL E&C Worth 3.2% of last year's revenue, over about 47 months.₩256B

5/20HJ Shipbuilding & Construction Worth 2.7% of last year's revenue, over about 60 months.₩54.3B

Preliminary earnings 3

5/20HD Korea Shipbuilding & Offshore Engineering Preliminary operating results

5/20HD Hyundai Heavy Industries Preliminary operating results

Insider trades 49

5/20Barunson Entertainment & Arts Insider ownership report

5/20JOL Insider ownership report

5/20Wavus Insider ownership report

5/20SY Steel Tech Insider ownership report

5/20Eco Volt Insider ownership report

5/20Samsung Biologics Insider ownership report

5/20Samt Insider ownership report

5/20Nsys Insider ownership report

5/20Com2us Insider ownership report

5/20SK Insider ownership report

5/20HL Holdings Insider ownership report

5/20Coway Insider ownership report

5/20Spigen Korea Insider ownership report

5/20SK Insider ownership report

5/20AmendedVivien Insider ownership report

5/20SK GAS Insider ownership report

5/20SK Insider ownership report

5/20Hanwha Investment&securities Insider ownership report

5/20H&SHigh Tech Insider ownership report

5/20GC MediAI Insider ownership report

5/20SK Insider ownership report

5/20Coway Insider ownership report

5/20SK Insider ownership report

5/20Hyundai Engineering & Construction Insider ownership report

5/20Dkme Insider ownership report

5/20AmendedIteyes Insider ownership report

5/20Sanigen Insider ownership report

5/20Cell Bio Human Tech Insider ownership report

5/20AmendedCell Bio Human Tech Insider ownership report

5/20Systems Technology Incorporated Insider ownership report

5/20Sena Technologies Insider ownership report

5/20Poled Insider ownership report

5/20RBW Insider ownership report

5/20Poled Insider ownership report

All insider trades →

5% holders 41

5/20New 5%Sanigen A major holder's stake rose from 0.00% to 52.10% (rights offering).52.10%

5/20New 5%Poled A major holder's stake rose from 0.00% to 29.22% (new report).29.22%

5/20AmendedVivien A major holder's stake rose from 17.31% to 44.73% (conversion/exercise).44.73%

5/20New 5%GMI Venture A major holder's stake rose from 0.00% to 8.30% (conversion/exercise).8.30%

5/20AmendedNew 5%Poled A major holder's stake rose from 0.00% to 5.92% (open-market sale).5.92%

5/20New 5%Shinhan 13th Special Purpose Acquisition Company A major holder's stake rose from 0.00% to 5.55%.5.55%

5/20SY Steel Tech A major holder's stake fell from 42.90% to 36.92% (related-party change).36.92%

5/20Korea Z A major holder's stake fell from 46.00% to 41.13%.41.13%

5/20Below 5%SV Investment A major holder's stake fell from 5.73% to 1.32%.1.32%

5/20Korea Z A major holder's stake fell from 41.30% to 36.92%.36.92%

5/20Iljin Electric A major holder's stake fell from 46.07% to 43.78% (open-market sale).43.78%

5/20Nsys A major holder's stake fell from 54.43% to 52.25%.52.25%

5/20Mcnex A major holder's stake rose from 29.30% to 31.03% (pledge).31.03%

5/20Dkme A major holder's stake rose from 38.54% to 39.61% (related-party change).39.61%

5/20Shinsung Delta Tech A major holder's stake fell from 33.04% to 32.59% (conversion/exercise).32.59%

5/20Uracle A major holder's stake rose from 31.92% to 32.29% (open-market buy).32.29%

5/20Wavus A major holder's stake rose from 45.37% to 45.70% (open-market buy).45.70%

5/20Bumhan Fuel Cell A major holder's stake fell from 51.94% to 51.64% (pledge).51.64%

5/20AmendedNine & Company A major holder's stake fell from 66.32% to 66.21%.66.21%

5/20Neowiz A major holder's stake rose from 37.95% to 38.06% (related-party change).38.06%

5/20Bookook Securities A major holder's stake rose from 34.71% to 34.76% (related-party change).34.76%

5/20Sungho Electronics A major holder's stake rose from 66.08% to 66.10% (open-market buy).66.10%

5/20GC MediAI A major holder's stake rose from 53.02% to 53.03% (related-party change).53.03%

5/20THE Nature Holdings A major holder's stake rose from 40.33% to 40.34% (related-party change).40.34%

5/20Eco Volt A major holder's stake rose from 29.93% to 29.93% (share consolidation/split).29.93%

5/20Smec A major holder's stake rose from 12.71% to 12.71% (pledge).12.71%

5/20Sangsangininvestment&securities A major holder's stake rose from 65.03% to 65.03% (pledge).65.03%

5/20Woori-Net A major holder's stake rose from 26.31% to 26.31% (pledge).26.31%

5/20Moadata A major holder's stake rose from 33.21% to 33.21%.33.21%

5/20Sangsangin A major holder's stake rose from 33.42% to 33.42%.33.42%

5/20Mntech A major holder's stake rose from 22.50% to 22.50% (pledge).22.50%

5/20Dongbu A major holder's stake rose from 56.22% to 56.22% (share lending).56.22%

5/20Woorim Power Train Solution Report of 5%+ holding

5/20AmendedAekyung Industrial A major holder's stake rose from 63.13% to 63.13% (related-party change).63.13%

5/20Poled Report of 5%+ holding

5/20Ecopro BM A major holder's stake rose from 45.23% to 45.23%.45.23%

5/20HanilForgingIndustrial A major holder's stake rose from 32.42% to 32.42% (pledge).32.42%

5/20Everybot A major holder's stake rose from 33.04% to 33.04% (pledge).33.04%

5/20Sonokong A major holder's stake rose from 17.35% to 17.35%.17.35%

5/20M2n A major holder's stake rose from 37.65% to 37.65% (share lending).37.65%

All 5% holders →

Buybacks 6

5/20TrustRemed Signed a ₩2B trust contract to buy back shares.₩2B

5/20TrustRemed Ended a share buyback trust contract.₩2B

5/20BuybackKPF Plans to buy back 189,393 sh of treasury stock, May 21 to Jun 19.₩1B

5/20DisposalInBody Plans to dispose of 5,100 sh of treasury stock, May 21 to May 29.₩225.9M

5/20JTC Share cancellation

5/20KPF Share cancellation

Share issues & bonds 22

5/20AmendedRights offeringHansol Technics Issuing 9,212,000 sh of new shares, equal to 29% of existing shares.₩45B

5/20Rights offeringBK Holdings Issuing 3,750,000 sh of new shares, equal to 19% of existing shares.₩3B

5/20CBKorea Pharma Conversion price ₩10,782; if all converted, equal to 11.3% of shares outstanding.₩15B

5/20BWEnjet Exercise price ₩5,424; if all exercised, equal to 7.9% of shares outstanding.₩5B

5/20CBDS Dansuk Conversion price ₩20,601; if all converted, equal to 7.6% of shares outstanding.₩30B

5/20CBVivien Conversion price ₩10,095; if all converted, equal to 4.9% of shares outstanding.₩1.2B

5/20AmendedHansol Holdings Rights offering

5/20AmendedAgent AI Rights offering

5/20AmendedGreat Rich Technologies Rights offering

5/20AmendedParatech Company Convertible bond issue

5/20AmendedHansol Technics Rights offering

5/20AmendedTera Science Rights offering

5/20AmendedTHE Codi Convertible bond issue

5/20AmendedGMI Venture Capital reduction

5/20AmendedHaisung Aero-Robotics Convertible bond issue

5/20AmendedCurexo Convertible bond issue

5/20AmendedDaejin Advanced Materials Convertible bond issue

5/20AmendedVictory Contents Convertible bond issue

5/20AmendedBlue Industrial Development Convertible bond issue

5/20Aroot Convertible bond issue

M&A & spin-offs 2

5/20Sungchang Enterprise Holdings Limited.Merger

5/20Lightron Fiber-Optic Devices Merger

Key filings, May 20, 2026

Supply contracts 25

Preliminary earnings 3

Insider trades 49

5% holders 41

Buybacks 6

Share issues & bonds 22

M&A & spin-offs 2

Exchange actions 14