SOUTH KOREA · OPENDART
PHILOPTICS CO., LTD.
필옵틱스 · 161580 · KOSDAQ · Industrials · Specialty Industrial Machinery
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, −32.1% over these six months
The closing price of each day, from 49,400.00 on 2026-04-21 to 33,550.00 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 −32.1%, the typical one −31.9%, 0.2 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 |
|---|---|---|---|---|---|---|
| Lim Ok Gyu | Executive | — | 1 | — | — | — |
| Sim Sang Won | Board member | — | 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 |
|---|---|---|---|---|---|---|---|
| 2026-05-13 | Lim Ok Gyu | Senior managing director | Sold on the exchange | 3,000 | ₩53,400 | ₩160.2M | DART ↗ |
| 2026-04-21 | Sim Sang Won | Director | Sold on the exchange | 1,600 | ₩49,000 | ₩78.4M | DART ↗ |
| 2026-04-20 | Han Gyoo Wan | Vice president | Sold on the exchange | 3,400 | ₩46,500 | ₩158.1M | DART ↗ |
| 2025-11-06 | Kal Kyoung Soo | Managing director | Sold on the exchange | 2,000 | ₩55,200 | ₩110.4M | DART ↗ |
| 2025-11-04 | Lee Jun Ho | Managing director | Sold on the exchange | 1,000 | ₩53,500 | ₩53.5M | DART ↗ |
| 2025-11-03 | Yu Sung Ju | Director | Sold on the exchange | 4,000 | ₩51,500 | ₩206.0M | DART ↗ |
Other changes in holdings · 11
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 |
|---|---|---|---|---|---|
| 2026-09-29 | Sim Sang Won | Director | Stock options(+) | 3,000 | DART ↗ |
| 2026-03-27 | Sim Sang Won | Director | Stock options(+) | 6,000 | DART ↗ |
| 2026-03-27 | Han Gyoo Wan | Vice president | Stock options(+) | 13,500 | DART ↗ |
| 2025-09-19 | Yu Sung Ju | Director | Stock options(+) | 2,000 | DART ↗ |
| 2025-09-19 | Kal Kyoung Soo | Managing director | Stock options(+) | 2,000 | DART ↗ |
| 2025-03-19 | Lim Ok Gyu | Senior managing director | Stock options(+) | 12,552 | DART ↗ |
| 2025-03-19 | Yu Sung Ju | Director | Stock options(+) | 2,000 | DART ↗ |
| 2025-03-19 | Kal Kyoung Soo | Managing director | Stock options(+) | 1,000 | DART ↗ |
| 2025-02-01 | Kal Kyoung Soo | Managing director | 신규선임(+) | 500 | DART ↗ |
| 2024-12-18 | Lim Ok Gyu | Senior managing director | 주식매수선택권(+) | 4,000 | DART ↗ |
| 2024-12-18 | Yu Sung Ju | Director | 주식매수선택권(+) | 3,000 | DART ↗ |