SOUTH KOREA · OPENDART
POSCO DX COMPANY LTD.
포스코DX · 022100 · KOSPI · Technology · Information Technology Services
Score
49.2
Insider timeline
2 insiders bought within 4 days, 23 Jun to 26 Jun: 1 Executive, 1 CEO / chair. 1 of them bought again later. The share closed at 21,950.00 on the first of those days and at 19,730.00 most recently (−10.1%).
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 23 Jun – 26 Jun, with 2 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, −43.1% over these six months
The closing price of each day, from 34,650.00 on 2026-04-21 to 19,730.00 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 −43.1%, the typical one −20.4%, 22.7 points behind. It is not an index and not a comparison within one industry.
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 |
|---|---|---|---|---|---|---|
| Kim Mi-yeong | Executive | 4 | — | 73.3M KRW | 2026-06-09 | −27.2% |
| SHIM MIN SUK | CEO / chair | 1 | — | 5.0M KRW | 2026-06-26 | −2.3% |
Insiders' buying price vs the latest close
Insiders paid 22,903.94 KRW a share on average (10 purchase lines, 4 buyers, 2026-02-12 – 2026-07-30). The close on 2026-10-16 was 13.9% below that price.
The latest purchase (2026-07-30) was at 17,150.00 KRW; the close was 15.0% above 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 |
|---|---|---|---|---|---|---|---|
| 2026-07-30 | Kim Mi-yeong | Senior managing director | Bought on the exchange | 1,000 | ₩17,150 | ₩17.1M | DART ↗ |
| 2026-07-16 | Kim Mi-yeong | Senior managing director | Bought on the exchange | 500 | ₩18,530 | ₩9.3M | DART ↗ |
| 2026-06-26 | SHIM MIN SUK | CEO | Bought on the exchange | 251 | ₩19,870 | ₩5.0M | DART ↗ |
| 2026-06-23 | Kim Mi-yeong | Senior managing director | Bought on the exchange | 902 | ₩22,450 | ₩20.2M | DART ↗ |
| 2026-06-09 | Kim Mi-yeong | Senior managing director | Bought on the exchange | 1,000 | ₩26,600 | ₩26.6M | DART ↗ |
| 2026-02-24 | LEE MINHEON | Managing director | Bought on the exchange | 10 | ₩37,850 | ₩378,500 | DART ↗ |
| 2026-02-23 | LEE MINHEON | Managing director | Bought on the exchange | 32 | ₩37,900 | ₩1.2M | DART ↗ |
| 2026-02-13 | LEE MINHEON | Managing director | Bought on the exchange | 46 | ₩38,800 | ₩1.8M | DART ↗ |
| 2026-02-13 | SHIM MIN SUK | CEO | Bought on the exchange | 128 | ₩38,900 | ₩5.0M | DART ↗ |
| 2026-02-12 | CHOI TAE HWAN | Inside director | Bought on the exchange | 133 | ₩38,000 | ₩5.1M | DART ↗ |
Other changes in holdings · 2
Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.