SOUTH KOREA · OPENDART
FADU INC.
파두 · 440110 · KOSDAQ · Technology · Semiconductors
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; 4 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, −5.9% over these six months
The closing price of each day, from 60,800.00 on 2026-04-21 to 57,200.00 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 −5.9%, the typical one −31.9%, 26.0 points ahead. It is not an index and not a comparison within one industry.
Who traded
| Insider | Role | Purchases | Sales | Bought | First purchase | Share price since |
|---|---|---|---|---|---|---|
| Kim Hong-seok | Executive | — | 2 | — | — | — |
| Park Sang-hyeon | Executive | — | 2 | — | — | — |
| Woo Yeong-jae | Executive | — | 1 | — | — | — |
| Jung Sang-yong | Executive | — | 1 | — | — | — |
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 |
|---|---|---|---|---|---|---|---|
| 2026-06-12 | Park Sang-hyeon | Senior managing director | Sold on the exchange | 5,200 | ₩97,169 | ₩505.3M | DART ↗ |
| 2026-05-22 | Jung Sang-yong | Managing director | Sold on the exchange | 3,000 | ₩128,433 | ₩385.3M | DART ↗ |
| 2026-05-19 | Woo Yeong-jae | Managing director | Sold on the exchange | 9,308 | ₩107,498 | ₩1.0B | DART ↗ |
| 2026-05-06 | Park Sang-hyeon | Senior managing director | Sold on the exchange | 560 | ₩77,979 | ₩43.7M | DART ↗ |
| 2026-05-04 | Kim Hong-seok | Managing director | Sold on the exchange | 40 | ₩81,950 | ₩3.3M | DART ↗ |
| 2026-04-29 | Kim Hong-seok | Managing director | Sold on the exchange | 1,700 | ₩81,800 | ₩139.1M | DART ↗ |
| 2026-04-14 | Kim Seon-ho | Senior managing director | Sold on the exchange | 680 | ₩57,000 | ₩38.8M | DART ↗ |
| 2026-04-08 | Kim Seon-ho | Senior managing director | Sold on the exchange | 2,000 | ₩51,500 | ₩103.0M | DART ↗ |
| 2026-03-10 | Sung Yun-je | Senior managing director | Sold on the exchange | 2,600 | ₩73,100 | ₩190.1M | DART ↗ |
| 2026-03-05 | Lee Seong-gap | Managing director | Sold on the exchange | 29,827 | ₩62,232 | ₩1.9B | DART ↗ |
| 2026-03-04 | Lee Seong-gap | Managing director | Sold on the exchange | 15,973 | ₩59,964 | ₩957.8M | DART ↗ |
| 2026-03-03 | Kim Hong-seok | Managing director | Sold on the exchange | 800 | ₩61,600 | ₩49.3M | DART ↗ |
| 2026-03-03 | Lee Seong-gap | Managing director | Sold on the exchange | 30,000 | ₩59,880 | ₩1.8B | DART ↗ |
| 2026-02-12 | Hong Geon-yeong | Managing director | Sold on the exchange | 20,000 | ₩55,000 | ₩1.1B | DART ↗ |
| 2025-12-16 | Park Sang-hyeon | Senior managing director | Sold on the exchange | 5,760 | ₩22,569 | ₩130.0M | DART ↗ |
| 2025-10-30 | Kim Hong-seok | Managing director | Sold on the exchange | 8,000 | ₩24,175 | ₩193.4M | DART ↗ |
| 2025-10-29 | Kim Hong-seok | Managing director | Sold on the exchange | 2,000 | ₩24,000 | ₩48.0M | DART ↗ |
| 2025-10-27 | Kim Hong-seok | Managing director | Sold on the exchange | 120,698 | ₩24,984 | ₩3.0B | DART ↗ |
Other changes in holdings · 41
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 |
|---|---|---|---|---|---|
| 2026-07-16 | Park Man-su | Managing director | Stock options(+) | 9,600 | DART ↗ |
| 2026-06-18 | Lee Seong-gap | Managing director | Stock options(+) | 1,100 | DART ↗ |
| 2026-05-04 | Na Gyeong-seok | Managing director | Donation(-) | 180 | DART ↗ |
| 2026-04-29 | Na Gyeong-seok | Managing director | Donation(-) | 4,000 | DART ↗ |
| 2026-04-17 | Lim Jin-eop | Managing director | Others(+) | 1,000 | DART ↗ |
| 2026-04-17 | Park Beom-jin | Managing director | Stock options(+) | 3,500 | DART ↗ |
| 2026-04-17 | Park Beom-jin | Managing director | Others(+) | 4,000 | DART ↗ |
| 2026-04-17 | Park Sang-hyeon | Senior managing director | Stock options(+) | 5,760 | DART ↗ |
| 2026-04-17 | Kim Seon-ho | Senior managing director | Stock options(+) | 5,680 | DART ↗ |
| 2026-03-25 | Kim Jin-su | Vice president | New appointment(+) | 4,481 | DART ↗ |
| 2026-03-25 | Kim Jin-su | Vice president | New appointment(+) | 4,400 | DART ↗ |
| 2026-03-25 | Lim Seong-uk | Managing director | New appointment(+) | 3,300 | DART ↗ |
| 2026-03-25 | Woo Yeong-jae | Managing director | New appointment(+) | 121,100 | DART ↗ |
| 2026-03-18 | Lee Seong-gap | Managing director | Stock options(+) | 1,600 | DART ↗ |
| 2026-03-18 | Kim Hyeon-su | Senior managing director | Stock options(+) | 24,000 | DART ↗ |
| 2026-03-18 | Park Jong-hyeon | Managing director | Stock options(+) | 8,450 | DART ↗ |
| 2026-02-04 | Na Gyeong-seok | Managing director | Stock options(+) | 14,610 | DART ↗ |
| 2026-02-04 | Won Jong-taek | Vice president | Stock options(+) | 484,222 | DART ↗ |
| 2025-12-29 | Kim Hong-seok | Managing director | Donation(-) | 4,706 | DART ↗ |
| 2025-12-01 | Jung Sang-yong | Managing director | Stock options(+) | 3,760 | DART ↗ |
| 2025-12-01 | Um Sang-ho | Managing director | Stock options(+) | 7,600 | DART ↗ |
| 2025-12-01 | Park Sang-hyeon | Senior managing director | Stock options(+) | 5,760 | DART ↗ |
| 2025-09-22 | Kim Hong-seok | Managing director | Donation(-) | 4,000 | DART ↗ |
| 2025-09-22 | Kim Hong-seok | Managing director | Donation(-) | 70,000 | DART ↗ |
| 2025-04-21 | Na Gyeong-seok | Managing director | Stock options(+) | 14,000 | DART ↗ |
| 2025-04-21 | Na Gyeong-seok | Managing director | Stock options(+) | 3,200 | DART ↗ |
| 2025-02-20 | Kim Seon-ho | Senior managing director | Stock options(+) | 29,000 | DART ↗ |
| 2024-12-30 | Lee Seong-gap | Managing director | 증여(-) | 20,000 | DART ↗ |
| 2024-12-30 | Lee Seong-gap | Managing director | 증여(-) | 5,000 | DART ↗ |
| 2024-12-30 | Lee Seong-gap | Managing director | 증여(-) | 5,000 | DART ↗ |
| 2024-12-30 | Kim Hong-seok | Managing director | 증여(-) | 35,000 | DART ↗ |
| 2024-12-30 | Kim Hong-seok | Managing director | 증여(-) | 40,000 | DART ↗ |
| 2024-12-20 | Choi Jin-yong | Managing director | 주식매수청구권 행사(+) | 4,160 | DART ↗ |
| 2024-12-12 | Shin Chang-ik | Managing director | 신규보고(+) | 500 | DART ↗ |
| 2024-10-31 | Lee Seong-gap | Managing director | 증여(-) | 50,000 | DART ↗ |
| 2024-10-31 | Lee Seong-gap | Managing director | 증여(-) | 25,000 | DART ↗ |
| 2024-10-31 | Lee Seong-gap | Managing director | 증여(-) | 25,000 | DART ↗ |
| 2024-10-27 | Kim Hong-seok | Managing director | 증여(-) | 25,000 | DART ↗ |
| 2024-10-27 | Kim Hong-seok | Managing director | 증여(-) | 25,000 | DART ↗ |
| 2024-10-22 | Park Sang-hyeon | Senior managing director | 주식매수청구권 행사(+) | 5,760 | DART ↗ |
| 2024-10-22 | Kim Seon-ho | Senior managing director | 주식매수청구권 행사(+) | 7,000 | DART ↗ |