SOUTH KOREA · OPENDART
AUROS TECHNOLOGY, INC.
오로스테크놀로지 · 322310 · KOSDAQ · Technology · Semiconductor Equipment & Materials
Score
Not ranked: no net buying on the exchange by an individual insider in the last 180 days.
Insider timeline
One insider bought, 3 times, the latest (11 Sep). The share closed at 12,300.00 that day and at 12,000.00 most recently (−2.4%).
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.
×A sale
A cross is one insider's sales on one day. People sell to pay tax, to cash in share awards or to hold less of one company, so a sale says less than a purchase does. When someone bought and sold on the same day, the cross sits beside the dot. The totals are under “Purchases against sales” below.
Blue line: this share's price, −65.8% over these six months
The closing price of each day, from 35,050.00 on 2026-04-21 to 12,000.00 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 −65.8%, the typical one −31.9%, 33.9 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 |
|---|---|---|---|---|---|---|
| JAEMAN YOO | Executive | — | 2 | — | — | — |
| HYUNJIN CHANG | Executive | — | 1 | — | — | — |
| JUNWOO LEE | CEO / chair | — | 1 | — | — | — |
| SUNGWON CHOI | CEO / chair | 3 | — | 127.1M KRW | 2026-05-20 | −53.5% |
Purchases against sales
Shares of the reported value of insider transactions in the 180-day window. Sales include disposals for tax, at option exercise or under a pre-set plan, which say little about an insider's view. The split describes what was disclosed; it is not a signal.
Insiders' buying price vs the latest close
Insiders paid 14,951.59 KRW a share on average (3 purchase lines, 1 buyer, 2026-05-20 – 2026-09-11). The close on 2026-10-16 was 19.7% below that price.
The latest purchase (2026-09-11) was at 12,388.00 KRW; the close was 3.1% 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 |
|---|---|---|---|---|---|---|---|
| 2026-09-11 | SUNGWON CHOI | CEO | Bought on the exchange | 2,500 | ₩12,388 | ₩31.0M | DART ↗ |
| 2026-09-10 | SUNGWON CHOI | CEO | Bought on the exchange | 4,500 | ₩12,534 | ₩56.4M | DART ↗ |
| 2026-05-20 | SUNGWON CHOI | CEO | Bought on the exchange | 1,500 | ₩26,477 | ₩39.7M | DART ↗ |
| 2026-04-29 | JAEMAN YOO | Senior managing director | Sold on the exchange | 8,000 | ₩44,738 | ₩357.9M | DART ↗ |
| 2026-04-29 | HYUNJIN CHANG | Managing director | Sold on the exchange | 9,951 | ₩44,850 | ₩446.3M | DART ↗ |
| 2026-04-29 | JUNWOO LEE | CEO | Sold on the exchange | 50,000 | ₩43,540 | ₩2.2B | DART ↗ |
| 2026-04-27 | JAEMAN YOO | Senior managing director | Sold on the exchange | 2,000 | ₩36,250 | ₩72.5M | DART ↗ |
| 2026-03-16 | JAEMAN YOO | Senior managing director | Sold on the exchange | 3,000 | ₩34,000 | ₩102.0M | DART ↗ |
| 2026-03-11 | JAEMAN YOO | Senior managing director | Sold on the exchange | 2,000 | ₩32,900 | ₩65.8M | 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.