SOUTH KOREA · OPENDART
SemiFive Inc.
세미파이브 · 490470 · KOSDAQ · Technology · Semiconductor Equipment & Materials
Score
49.3
Insider timeline
One insider bought, 4 times, the latest (21 Aug). The share closed at 14,170.00 that day and at 16,350.00 most recently (+15.4%).
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.
Blue line: this share's price, −56.5% over these six months
The closing price of each day, from 37,600.00 on 2026-04-21 to 16,350.00 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 −56.5%, the typical one −31.9%, 24.6 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 |
|---|---|---|---|---|---|---|
| Jongseon Kim | Executive | 4 | — | 91.8M KRW | 2026-07-20 | −3.4% |
Insiders' buying price vs the latest close
Insiders paid 15,293.33 KRW a share on average (5 purchase lines, 1 buyer, 2026-07-20 – 2026-08-21). The close on 2026-10-16 was 6.9% above that price.
The latest purchase (2026-08-21) was at 14,075.00 KRW; the close was 16.2% above that price.
Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored. 1 more purchase line could not be compared with the share price and is left out.
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-21 | Jongseon Kim | Vice president | Bought on the exchange | 1,000 | ₩14,020 | ₩14.0M | DART ↗ |
| 2026-08-21 | Jongseon Kim | Vice president | Bought on the exchange | 1,000 | ₩14,130 | ₩14.1M | DART ↗ |
| 2026-07-29 | Jongseon Kim | Vice president | Bought on the exchange | 1,000 | ₩13,140 | ₩13.1M | DART ↗ |
| 2026-07-24 | Jongseon Kim | Vice president | Bought on the exchange | 2,000 | ₩16,770 | ₩33.5M | DART ↗ |
| 2026-07-20 | Jongseon Kim | Vice president | Bought on the exchange | 1,000 | ₩16,930 | ₩16.9M | DART ↗ |
| 2026-04-15 | Inchol Jang | Research fellow | Bought on the exchange | 1,750 | ₩16,428 | ₩28.7M | DART ↗ |
Other changes in holdings · 60
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 |
|---|---|---|---|---|---|
| 2026-10-12 | Cho MyongHyon | CEO | Stock options(+) | 5,000 | DART ↗ |
| 2026-10-12 | Chongkee Kim | Senior managing director | Stock options(+) | 4,000 | DART ↗ |
| 2026-10-12 | Sangyup Lee | Senior managing director | Stock options(+) | 30,228 | DART ↗ |
| 2026-10-12 | Sukwon Kim | Vice president | Stock options(+) | 3,500 | DART ↗ |
| 2026-10-12 | Dongsoo Cho | Vice president | Stock options(+) | 6,300 | DART ↗ |
| 2026-10-12 | Seungung Baek | Vice president | Stock options(+) | 14,500 | DART ↗ |
| 2026-10-12 | Jaehoon Park | Senior managing director | Stock options(+) | 3,000 | DART ↗ |
| 2026-10-12 | Sungsu Kim | Senior managing director | Stock options(+) | 7,500 | DART ↗ |
| 2026-10-12 | Jeongjoo Lee | Senior managing director | Stock options(+) | 4,000 | DART ↗ |
| 2026-10-12 | Changgee Baek | Senior managing director | Stock options(+) | 5,800 | DART ↗ |
| 2026-10-12 | Sangkil Lee | Senior managing director | Stock options(+) | 20,000 | DART ↗ |
| 2026-10-12 | Myungsik Kim | Senior managing director | Stock options(+) | 7,000 | DART ↗ |
| 2026-10-12 | Junkyu Min | Managing director | Stock options(+) | 1,600 | DART ↗ |
| 2026-10-12 | Chae Duck Lim | Managing director | Stock options(+) | 1,000 | DART ↗ |
| 2026-10-12 | Wonin Hong | Managing director | Stock options(+) | 500 | DART ↗ |
| 2026-10-12 | Wonin Hong | Managing director | Stock options(+) | 2,800 | DART ↗ |
| 2026-10-12 | Myungju Lee | Managing director | Stock options(+) | 4,600 | DART ↗ |
| 2026-10-12 | Myungju Lee | Managing director | Stock options(+) | 4,200 | DART ↗ |
| 2026-10-12 | Seungryeol Lee | Research fellow | Stock options(+) | 5,250 | DART ↗ |
| 2026-10-12 | Heungcheol Oh | Research fellow | Stock options(+) | 950 | DART ↗ |
| 2026-10-12 | Heungcheol Oh | Research fellow | Stock options(+) | 2,900 | DART ↗ |
| 2026-10-12 | Inseong Kim | Research fellow | Stock options(+) | 2,000 | DART ↗ |
| 2026-10-12 | Youngho Park | Research fellow | Stock options(+) | 50 | DART ↗ |
| 2026-07-06 | Wongyun Lee | Research fellow | New appointment(+) | 1,305 | DART ↗ |
| 2026-05-11 | Cho MyongHyon | CEO | Exercise of appraisal rights(+) | 3,050 | DART ↗ |
| 2026-04-17 | Inchol Jang | Research fellow | Stock options(+) | 500 | DART ↗ |
| 2026-04-10 | Sangkil Lee | Senior managing director | Exercise of appraisal rights(+) | 3,216 | DART ↗ |
| 2026-04-10 | Sukwon Kim | Vice president | Stock options(+) | 3,500 | DART ↗ |
| 2026-04-10 | Kim Jundae | Vice president | Stock options(+) | 18,000 | DART ↗ |
| 2026-04-10 | Jaehoon Park | Senior managing director | Stock options(+) | 10,000 | DART ↗ |
| 2026-04-10 | Sukhyun Yoon | Senior managing director | Stock options(+) | 2,500 | DART ↗ |
| 2026-04-10 | Sukhyun Yoon | Senior managing director | Stock options(+) | 2,500 | DART ↗ |
| 2026-04-10 | Changgee Baek | Senior managing director | Stock options(+) | 5,400 | DART ↗ |
| 2026-04-10 | Changgee Baek | Senior managing director | Stock options(+) | 1,300 | DART ↗ |
| 2026-04-10 | Sungsu Kim | Senior managing director | Stock options(+) | 5,000 | DART ↗ |
| 2026-04-10 | Seungryeol Lee | Research fellow | Stock options(+) | 1,250 | DART ↗ |
| 2026-04-10 | Jongin Kim | Research fellow | Stock options(+) | 2,500 | DART ↗ |
| 2026-04-10 | Myungju Lee | Managing director | Stock options(+) | 4,650 | DART ↗ |
| 2026-04-10 | Jeongjoo Lee | Senior managing director | Stock options(+) | 5,850 | DART ↗ |
| 2026-04-10 | Jinaeon Lee | Vice president | Exercise of appraisal rights(+) | 36,424 | DART ↗ |
| 2026-04-10 | Kim Insung | Research fellow | Exercise of appraisal rights(+) | 900 | DART ↗ |
| 2026-04-01 | Chae Duck Lim | Research fellow | New appointment(+) | 2,500 | DART ↗ |
| 2026-04-01 | Sejeong Woo | Managing director | New appointment(+) | 4,100 | DART ↗ |
| 2026-04-01 | Youngho Park | Research fellow | New appointment(+) | 950 | DART ↗ |
| 2026-01-05 | Kyeongchae Park | Research fellow | New appointment(+) | 4 | DART ↗ |
| 2025-12-30 | Kim Jundae | Vice president | Stock options(+) | 2,150 | DART ↗ |
| 2025-12-30 | Junkyu Min | Managing director | Stock options(+) | 2,000 | DART ↗ |
| 2025-12-30 | Changgee Baek | Senior managing director | Stock options(+) | 4,600 | DART ↗ |
| 2025-12-30 | Seungryeol Lee | Research fellow | Stock options(+) | 1,500 | DART ↗ |
| 2025-12-30 | Inchol Jang | Research fellow | Stock options(+) | 1,500 | DART ↗ |
| 2025-12-30 | Wonchang Huh | Managing director | Stock options(+) | 5,100 | DART ↗ |
| 2025-12-30 | Sukwon Kim | Vice president | Stock options(+) | 6,250 | DART ↗ |
| 2025-12-30 | Kim Myungsik | Senior managing director | Stock options(+) | 3,000 | DART ↗ |
| 2025-12-30 | Weonin Hong | Managing director | Stock options(+) | 2,500 | DART ↗ |
| 2025-12-30 | Dongsoo Cho | Vice president | Stock options(+) | 12,500 | DART ↗ |
| 2025-12-30 | Jinaeon Lee | Vice president | Stock options(+) | 12,000 | DART ↗ |
| 2025-12-30 | Jeongjoo Lee | Senior managing director | Stock options(+) | 1,650 | DART ↗ |
| 2025-12-30 | Sangkil Lee | Senior managing director | Stock options(+) | 8,334 | DART ↗ |
| 2025-12-30 | Heungcheol Oh | Research fellow | Stock options(+) | 3,200 | DART ↗ |
| 2025-12-30 | Jaehoon Park | Senior managing director | Stock options(+) | 4,200 | DART ↗ |