Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

MASON CAPITAL CORPORATION

메이슨캐피탈 · 021880 · KOSDAQ · Financial Services · Credit Services

Score

60.6

Rank 215 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%80
Size 25%35
Role 20%65
Recency 10%7
Conviction 10%100

Insider timeline

4 insiders bought within 2 days, 11 May to 12 May: 2 Board member, 1 CEO / chair, 1 Executive. The share closed at 1,660.00 on the first of those days and at 1,138.00 most recently (−31.4%).

Several insiders within 15 days: 2026-05-11 – 2026-05-12Kim Tae-gyunKim Tae-gyunChief Executive OfficerCEO / chairSung Ji-yongSung Ji-yongMember of the executive committeeExecutiveHong Seung-hyeonHong Seung-hyeonDirectorBoard memberLim Jin-seongLim Jin-seongDirectorBoard member2026-05-08 · Kim Tae-gyun · purchase · 12,480,605 KRW2026-05-11 · Hong Seung-hyeon · purchase · 2,195,516 KRW2026-05-11 · Kim Tae-gyun · purchase · 37,542,086 KRW2026-05-11 · Lim Jin-seong · purchase · 1,999,800 KRW2026-05-11 · Sung Ji-yong · purchase · 10,680,969 KRW2026-05-12 · Hong Seung-hyeon · purchase · 123,840 KRW2026-05-12 · Sung Ji-yong · purchase · 99,495 KRWMayJunJulAugSepOct

Tap an item for what it means.

●A purchase: the bigger the dot, the more was bought

Each dot is one insider's purchases on one day. The dot's area follows the amount: the largest purchase here gets the largest dot. Hold the pointer over a dot to see the date and the amount.

▮Purple band: several insiders bought within 15 days

The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 11 May – 12 May, with 4 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.

Blue line: this share's price, −42.2% over these six months

The closing price of each day, from 1,970.00 on 2026-04-21 to 1,138.00 on 2026-10-16. The line has no scale; read it for high and low: a dot on a low stretch was bought cheaply, a dot on a high stretch was not.

Dashed line: the typical stock on the same exchange, −31.9%

Taken from the 1525 other stocks on the same exchange that this site holds prices for. Each is measured from the first day of the window, and every day the middle one is drawn. It starts where the blue line starts, so the gap between the two is the difference: this share −42.2%, the typical one −31.9%, 10.4 points behind. It is not an index and not a comparison within one industry.

This company: insiders buying per month, last 12 months

Nov
Dec
Jan
Feb
Mar
Apr
4May
Jun
Jul
Aug
Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
Kim Tae-gyunCEO / chair2—50.0M KRW2026-05-08−33.1%
Sung Ji-yongExecutive2—10.8M KRW2026-05-11−31.4%
Hong Seung-hyeonBoard member2—2.3M KRW2026-05-11−31.4%
Lim Jin-seongBoard member1—2.0M KRW2026-05-11−31.4%

Insiders' buying price vs the latest close

No purchase price could be compared with the share price (price or share count missing, another currency, or far from that day's close).

Insider trades on the exchange

Purchases and sales on the exchange in the last 12 months. The filing gives the settlement date; the trade date is two trading days earlier.

Trade dateInsiderRoleTradeSharesPriceValueFiling
2026-05-12Hong Seung-hyeonDirectorBought on the exchange774₩160₩123,840DART ↗
2026-05-12Sung Ji-yongSenior managing directorBought on the exchange603₩165₩99,495DART ↗
2026-05-11Hong Seung-hyeonDirectorBought on the exchange13,226₩166₩2.2MDART ↗
2026-05-11Sung Ji-yongSenior managing directorBought on the exchange14,397₩164₩2.4MDART ↗
2026-05-11Sung Ji-yongSenior managing directorBought on the exchange10,139₩165₩1.7MDART ↗
2026-05-11Sung Ji-yongSenior managing directorBought on the exchange19,861₩166₩3.3MDART ↗
2026-05-11Sung Ji-yongSenior managing directorBought on the exchange10,000₩167₩1.7MDART ↗
2026-05-11Sung Ji-yongSenior managing directorBought on the exchange10,000₩168₩1.7MDART ↗
2026-05-11Lim Jin-seongDirectorBought on the exchange12,120₩165₩2.0MDART ↗
2026-05-11Kim Tae-gyunCEOBought on the exchange20,000₩165₩3.3MDART ↗
2026-05-11Kim Tae-gyunCEOBought on the exchange30,310₩166₩5.0MDART ↗
2026-05-11Kim Tae-gyunCEOBought on the exchange123,887₩168₩20.8MDART ↗
2026-05-11Kim Tae-gyunCEOBought on the exchange49,690₩169₩8.4MDART ↗
2026-05-08Kim Tae-gyunCEOBought on the exchange7,010₩161₩1.1MDART ↗
2026-05-08Kim Tae-gyunCEOBought on the exchange50,000₩164₩8.2MDART ↗
2026-05-08Kim Tae-gyunCEOBought on the exchange19,103₩165₩3.2MDART ↗
Other changes in holdings · 45

Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.

DateInsiderRoleReasonSharesFiling
2026-08-12The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)4,800DART ↗
2026-08-03The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)2,523DART ↗
2026-07-31The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)5,451DART ↗
2026-07-24The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)5,000DART ↗
2026-07-21The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)5,508DART ↗
2026-07-16The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)6,500DART ↗
2026-07-13The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)108,150DART ↗
2026-06-19Lim Jin-seongDirectorStock consolidation1,212DART ↗
2026-06-19Hong Seung-hyeonDirectorStock consolidation1,400DART ↗
2026-06-19Sung Ji-yongSenior managing directorStock consolidation6,500DART ↗
2026-06-19Kim Tae-gyunCEOStock consolidation30,000DART ↗
2026-06-19The LEADCORP, Inc.10% shareholderStock consolidation13,384,820DART ↗
2026-06-11The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)200,000DART ↗
2026-06-09Lim Jin-seongDirectorCapital reduction9,696DART ↗
2026-06-09Hong Seung-hyeonDirectorCapital reduction11,200DART ↗
2026-06-09Sung Ji-yongSenior managing directorCapital reduction52,000DART ↗
2026-06-09Kim Tae-gyunCEOCapital reduction240,000DART ↗
2026-06-09The LEADCORP, Inc.10% shareholderCapital reduction107,078,560DART ↗
2025-07-18The LEADCORP, Inc.10% shareholderPaid-in capital increase by third-party allotment(+)20,000,000DART ↗
2025-06-03The LEADCORP, Inc.10% shareholderPaid-in capital increase by third-party allotment(+)40,000,000DART ↗
2025-05-15The LEADCORP, Inc.10% shareholderAcquisition in OTC(+)71,990,000DART ↗
2025-05-15Cactus Buyout Private Equity Fund VI10% shareholderDisposal in OTC(-)71,990,000DART ↗
2025-04-02The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)4,641DART ↗
2025-04-01The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)63,479DART ↗
2025-03-28The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)65,317DART ↗
2025-03-27The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)87,268DART ↗
2025-03-26The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)114,511DART ↗
2025-03-25The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)203,724DART ↗
2025-03-24The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)242,821DART ↗
2025-03-21The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)240,479DART ↗
2025-03-20The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)84,022DART ↗
2025-03-19The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)26,650DART ↗
2025-03-17The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)15,353DART ↗
2025-03-14The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)24,840DART ↗
2025-03-13The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)32,007DART ↗
2025-03-12The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)24,401DART ↗
2025-03-11The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)68,805DART ↗
2025-03-10The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)37,683DART ↗
2025-03-07The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)27,516DART ↗
2025-03-06The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)61,663DART ↗
2025-03-05The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)52,086DART ↗
2025-02-27The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)35,617DART ↗
2025-02-26The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)45,704DART ↗
2025-02-25The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)40,000DART ↗
2025-02-24The LEADCORP, Inc.10% shareholderAcquisition in exchange(+)59,613DART ↗