SOUTH KOREA · OPENDART
JEIO Co., Ltd.
제이오 · 418550 · KOSDAQ · Technology · Electronic Components
Score
Not ranked: no net buying on the exchange by an individual insider in the last 180 days.
Insider timeline
No purchase in the last 180 days; 2 insiders sold.
Tap an item for what it means.
×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, −67.8% over these six months
The closing price of each day, from 14,400.00 on 2026-04-21 to 4,640.00 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 −67.8%, the typical one −31.9%, 35.9 points behind. It is not an index and not a comparison within one industry.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| PARK JONG HO | Executive | — | 1 | — | — | — |
| Kim Ju hee | Executive | — | 2 | — | — | — |
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 |
|---|---|---|---|---|---|---|---|
| 2026-04-23 | Kim Ju hee | Managing director | Sold on the exchange | 1,000 | ₩12,600 | ₩12.6M | DART ↗ |
| 2026-04-22 | Kim Ju hee | Managing director | Sold on the exchange | 1,000 | ₩13,468 | ₩13.5M | DART ↗ |
| 2026-04-21 | PARK JONG HO | Vice president | Sold on the exchange | 5,000 | ₩14,000 | ₩70.0M | DART ↗ |
| 2026-04-20 | Shin Kwan Shik | Director | Sold on the exchange | 8,000 | ₩9,870 | ₩79.0M | DART ↗ |
| 2026-04-20 | Shin Kwan Shik | Director | Sold on the exchange | 6,000 | ₩9,910 | ₩59.5M | DART ↗ |
| 2026-04-17 | KIM SEOK JOO | Director | Sold on the exchange | 2,400 | ₩9,150 | ₩22.0M | DART ↗ |
| 2026-04-15 | Kim Ju hee | Managing director | Sold on the exchange | 3,000 | ₩8,600 | ₩25.8M | DART ↗ |
Other changes in holdings · 28
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 |
|---|---|---|---|---|---|
| 2026-05-13 | Goo Min Chun | Director | Donation(-) | 3,000 | DART ↗ |
| 2025-05-01 | CHOO SHIN CHUL | Senior managing director | New appointment(+) | 543 | DART ↗ |
| 2025-03-18 | KIM SEOK JOO | Director | Donation(-) | 1,200 | DART ↗ |
| 2025-03-18 | KIM SEOK JOO | Director | Donation(-) | 1,200 | DART ↗ |
| 2025-03-18 | KIM SEOK JOO | Director | Donation(-) | 1,200 | DART ↗ |
| 2025-01-03 | Goo Min Chun | Director | 증여(-) | 5,000 | DART ↗ |
| 2025-01-03 | Goo Min Chun | Director | 증여(-) | 1,000 | DART ↗ |
| 2025-01-03 | Goo Min Chun | Director | 증여(-) | 1,000 | DART ↗ |
| 2025-01-01 | CHOI SANG KYUN | Director | 신규보고(+) | 1,450 | DART ↗ |
| 2024-12-03 | PARK JONG HO | Senior managing director | 증여(-) | 4,000 | DART ↗ |
| 2024-12-03 | PARK JONG HO | Senior managing director | 증여(-) | 1,000 | DART ↗ |
| 2024-12-03 | PARK JONG HO | Senior managing director | 증여(-) | 900 | DART ↗ |
| 2024-11-15 | Chun Moon Su | Managing director | 주식매수선택권(+) | 24,000 | DART ↗ |
| 2024-11-15 | Cho Hwi-yong | Vice president | 주식매수선택권(+) | 9,000 | DART ↗ |
| 2024-11-15 | Chung Hoon Ki | Vice president | 주식매수선택권(+) | 9,000 | DART ↗ |
| 2024-11-15 | Oh Kwang Hee | Director | 주식매수선택권(+) | 2,400 | DART ↗ |
| 2024-11-15 | Yang Kil Jong | Director | 주식매수선택권(+) | 1,200 | DART ↗ |
| 2024-11-15 | Shin Kwan Shik | Director | 주식매수선택권(+) | 6,000 | DART ↗ |
| 2024-11-15 | Song Kug Kyong | Managing director | 주식매수선택권(+) | 1,800 | DART ↗ |
| 2024-11-15 | Baek Myung Jin | Senior managing director | 주식매수선택권(+) | 2,400 | DART ↗ |
| 2024-11-15 | PARK JONG HO | Senior managing director | 주식매수선택권(+) | 30,000 | DART ↗ |
| 2024-11-15 | Park Kwang Wook | Adviser | 주식매수선택권(+) | 1,200 | DART ↗ |
| 2024-11-15 | Na Bo Sung | Senior managing director | 주식매수선택권(+) | 1,200 | DART ↗ |
| 2024-11-15 | Kim Jong Myeong | Managing director | 주식매수선택권(+) | 1,800 | DART ↗ |
| 2024-11-15 | Kim Young il | Director | 주식매수선택권(+) | 6,000 | DART ↗ |
| 2024-11-15 | KIM SEOK JOO | Director | 주식매수선택권(+) | 6,000 | DART ↗ |
| 2024-11-15 | Kim Gill Rea | Adviser | 주식매수선택권(+) | 30,000 | DART ↗ |
| 2024-11-15 | Goo Min Chun | Director | 주식매수선택권(+) | 6,000 | DART ↗ |