SOUTH KOREA · OPENDART
SAMSUNG HEAVY INDUSTRIES CO.,LTD
삼성중공업 · 010140 · KOSPI · Industrials · Aerospace & Defense
Score
84.3
Insider timeline
17 insiders bought within 15 days, 24 Jun to 8 Jul: 16 Executive, 1 CEO / chair. 1 of them bought again later. 7 more bought afterwards. The share closed at 24,600.00 on the first of those days and at 18,400.00 most recently (−25.2%).
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 24 Jun – 8 Jul, with 17 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, −39.1% over these six months
The closing price of each day, from 30,200.00 on 2026-04-21 to 18,400.00 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, −20.4%
Taken from the 685 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 −39.1%, the typical one −20.4%, 18.7 points behind. It is not an index and not a comparison within one industry.
15 more insiders traded in the window and are not drawn.
This company: insiders buying per month, last 12 months
Darker bars are inside the 180-day window above.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| AHN YOUNG KYU | Executive | 1 | — | 100.3M KRW | 2026-06-22 | −29.8% |
| CHOI SUNG AN | CEO / chair | 1 | — | 243.1M KRW | 2026-06-24 | −25.2% |
| RYU KWANG HYUN | Executive | 3 | — | 30.0M KRW | 2026-06-24 | −25.2% |
| Lee Seong-rak | Executive | 1 | — | 48.4M KRW | 2026-06-25 | −22.7% |
| Lee Seung-hun | Executive | 1 | — | 92.2M KRW | 2026-06-26 | −20.0% |
| Yeom Cheol-seong | Executive | 1 | — | 68.8M KRW | 2026-06-26 | −20.0% |
| Yoon Jae-gyun | Executive | 1 | — | 91.0M KRW | 2026-06-26 | −20.0% |
| KIM KYUNG HEE | Executive | 1 | — | 160.5M KRW | 2026-06-29 | −24.7% |
| LEE HO KI | Executive | 1 | — | 23.1M KRW | 2026-06-29 | −24.7% |
| LEE BYOUNG SUN | Executive | 1 | — | 23.6M KRW | 2026-06-30 | −21.0% |
| AN DONG MIN | Executive | 2 | — | 44.7M KRW | 2026-07-02 | −19.8% |
| LEE WANG KEUN | Executive | 1 | — | 113.5M KRW | 2026-07-02 | −19.8% |
| KIM KYUNG SOO | Executive | 1 | — | 66.9M KRW | 2026-07-03 | −21.7% |
| NAMGOONG GEUMSUNG | Executive | 1 | — | 31.2M KRW | 2026-07-06 | −22.4% |
| BAEK JEUNG HOON | Executive | 1 | — | 22.4M KRW | 2026-07-07 | −18.0% |
| JUNG I NHO | Executive | 1 | — | 62.9M KRW | 2026-07-08 | −13.0% |
| LEE DONG HYUN | Executive | 1 | — | 66.9M KRW | 2026-07-08 | −13.0% |
| PARK CHUL HEE | Executive | 1 | — | 24.0M KRW | 2026-07-08 | −13.0% |
| YOON GI WONE | Executive | 1 | — | 53.4M KRW | 2026-07-09 | −12.2% |
| HEO HEE YOUNG | Executive | 1 | — | 32.7M KRW | 2026-07-15 | −15.8% |
| BANG HO YEOL | Executive | 1 | — | 21.9M KRW | 2026-07-16 | −17.5% |
| KIM DONG JOO | Executive | 1 | — | 43.2M KRW | 2026-07-20 | −12.2% |
| KIM HYUN HO | Executive | 1 | — | 21.4M KRW | 2026-07-20 | −12.2% |
| KWON HYUK SOO | Executive | 1 | — | 22.7M KRW | 2026-07-27 | −18.8% |
| PARK YONG GU | Executive | 1 | — | 13.8M KRW | 2026-07-31 | −13.8% |
Insiders' buying price vs the latest close
Insiders paid 23,093.94 KRW a share on average (30 purchase lines, 25 buyers, 2026-06-22 – 2026-07-31). The close on 2026-10-16 was 20.3% below that price.
The latest purchase (2026-07-31) was at 21,229.59 KRW; the close was 13.3% below that price.
Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored.
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 date | Insider | Role | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-31 | RYU KWANG HYUN | Managing director | Bought on the exchange | 941 | ₩21,250 | ₩20.0M | DART ↗ |
| 2026-07-31 | PARK YONG GU | Managing director | Bought on the exchange | 649 | ₩21,200 | ₩13.8M | DART ↗ |
| 2026-07-27 | KWON HYUK SOO | Managing director | Bought on the exchange | 1,000 | ₩22,700 | ₩22.7M | DART ↗ |
| 2026-07-20 | KIM DONG JOO | Managing director | Bought on the exchange | 2,000 | ₩21,600 | ₩43.2M | DART ↗ |
| 2026-07-20 | KIM HYUN HO | Managing director | Bought on the exchange | 1,000 | ₩21,400 | ₩21.4M | DART ↗ |
| 2026-07-16 | BANG HO YEOL | Managing director | Bought on the exchange | 1,000 | ₩21,900 | ₩21.9M | DART ↗ |
| 2026-07-15 | HEO HEE YOUNG | Managing director | Bought on the exchange | 1,500 | ₩21,800 | ₩32.7M | DART ↗ |
| 2026-07-09 | YOON GI WONE | Managing director | Bought on the exchange | 2,500 | ₩21,350 | ₩53.4M | DART ↗ |
| 2026-07-08 | PARK CHUL HEE | Managing director | Bought on the exchange | 1,100 | ₩21,800 | ₩24.0M | DART ↗ |
| 2026-07-08 | LEE DONG HYUN | Vice president | Bought on the exchange | 3,000 | ₩22,300 | ₩66.9M | DART ↗ |
| 2026-07-08 | JUNG I NHO | Managing director | Bought on the exchange | 3,000 | ₩20,950 | ₩62.9M | DART ↗ |
| 2026-07-07 | BAEK JEUNG HOON | Managing director | Bought on the exchange | 1,000 | ₩22,400 | ₩22.4M | DART ↗ |
| 2026-07-06 | NAMGOONG GEUMSUNG | Vice president | Bought on the exchange | 1,317 | ₩23,700 | ₩31.2M | DART ↗ |
| 2026-07-03 | AN DONG MIN | Managing director | Bought on the exchange | 507 | ₩22,150 | ₩11.2M | DART ↗ |
| 2026-07-03 | KIM KYUNG SOO | Managing director | Bought on the exchange | 3,000 | ₩22,300 | ₩66.9M | DART ↗ |
| 2026-07-03 | AN DONG MIN | Managing director | Bought on the exchange | 493 | ₩22,600 | ₩11.1M | DART ↗ |
| 2026-07-02 | AN DONG MIN | Managing director | Bought on the exchange | 493 | ₩22,600 | ₩11.1M | DART ↗ |
| 2026-07-02 | AN DONG MIN | Managing director | Bought on the exchange | 507 | ₩22,150 | ₩11.2M | DART ↗ |
| 2026-07-02 | LEE WANG KEUN | Vice president | Bought on the exchange | 5,000 | ₩22,700 | ₩113.5M | DART ↗ |
| 2026-06-30 | LEE BYOUNG SUN | Managing director | Bought on the exchange | 1,000 | ₩23,550 | ₩23.6M | DART ↗ |
| 2026-06-29 | LEE HO KI | Managing director | Bought on the exchange | 1,000 | ₩23,150 | ₩23.1M | DART ↗ |
| 2026-06-29 | KIM KYUNG HEE | Vice president | Bought on the exchange | 6,700 | ₩23,950 | ₩160.5M | DART ↗ |
| 2026-06-26 | Lee Seung-hun | Managing director | Bought on the exchange | 4,000 | ₩23,050 | ₩92.2M | DART ↗ |
| 2026-06-26 | Yoon Jae-gyun | Vice president | Bought on the exchange | 4,000 | ₩22,750 | ₩91.0M | DART ↗ |
| 2026-06-26 | Yeom Cheol-seong | Managing director | Bought on the exchange | 3,000 | ₩22,950 | ₩68.8M | DART ↗ |
| 2026-06-25 | RYU KWANG HYUN | Managing director | Bought on the exchange | 294 | ₩23,800 | ₩7.0M | DART ↗ |
| 2026-06-25 | Lee Seong-rak | Vice president | Bought on the exchange | 2,000 | ₩24,200 | ₩48.4M | DART ↗ |
| 2026-06-24 | RYU KWANG HYUN | Managing director | Bought on the exchange | 120 | ₩24,950 | ₩3.0M | DART ↗ |
| 2026-06-24 | CHOI SUNG AN | Vice chairman | Bought on the exchange | 10,000 | ₩24,310 | ₩243.1M | DART ↗ |
| 2026-06-22 | AHN YOUNG KYU | Vice president | Bought on the exchange | 3,807 | ₩26,350 | ₩100.3M | DART ↗ |
Other changes in holdings · 6
Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.
| Date | Insider | Role | Reason | Shares | Filing |
|---|---|---|---|---|---|
| 2026-08-12 | LIM JONG JIN | Vice president | Others(+) | 9,300 | DART ↗ |
| 2025-11-27 | Kwon Hyeok-su | Managing director | New appointment(+) | 600 | DART ↗ |
| 2025-11-27 | Hwang Won-jun | Managing director | New appointment(+) | 160 | DART ↗ |
| 2024-12-04 | Min Jun-ho | Managing director | 신규선임(+) | 7,000 | DART ↗ |
| 2024-12-04 | Park Yong-gu | Managing director | 신규선임(+) | 4,351 | DART ↗ |
| 2023-12-06 | Yeom Cheol-seong | Managing director | Executive retirement(-) | 1,700 | DART ↗ |