SOUTH KOREA · OPENDART
JS Link, Inc.
제이에스링크 · 127120 · KOSDAQ · Healthcare · Biotechnology
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; 1 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, −49.0% over these six months
The closing price of each day, from 40,950.00 on 2026-04-21 to 20,900.00 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 −49.0%, the typical one −31.9%, 17.1 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 |
|---|---|---|---|---|---|---|
| Kim Seon-jin | Board member | — | 4 | — | — | — |
Insiders' buying price vs the latest close
Insiders paid 16,878.54 KRW a share on average (2 purchase lines, 1 buyer, 2025-11-14 – 2025-11-14). The close on 2026-10-16 was 23.8% above 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 |
|---|---|---|---|---|---|---|---|
| 2026-08-25 | Kim Seon-jin | Outside director | Sold on the exchange | 16,456 | ₩34,002 | ₩559.5M | DART ↗ |
| 2026-08-24 | Kim Seon-jin | Outside director | Sold on the exchange | 2,596 | ₩34,514 | ₩89.6M | DART ↗ |
| 2026-08-21 | Kim Seon-jin | Outside director | Sold on the exchange | 1,358 | ₩34,550 | ₩46.9M | DART ↗ |
| 2026-08-20 | Kim Seon-jin | Outside director | Sold on the exchange | 469 | ₩34,950 | ₩16.4M | DART ↗ |
| 2025-11-14 | Jinsoo Park | Director | Bought on the exchange | 1,500 | ₩17,677 | ₩26.5M | DART ↗ |
| 2025-11-14 | Jinsoo Park | Director | Bought on the exchange | 5,000 | ₩16,639 | ₩83.2M | DART ↗ |
Other changes in holdings · 31
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 |
|---|---|---|---|---|---|
| 2026-06-25 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | CB acquisition(+) | 280,804 | DART ↗ |
| 2026-03-31 | Seon Jin Kim | Outside director | New appointment(+) | 58,555 | DART ↗ |
| 2026-03-31 | Kyu Sok Park | Outside director | New appointment(+) | 28,488 | DART ↗ |
| 2026-02-03 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition of paid-in new shares(+) | 183,131 | DART ↗ |
| 2026-01-06 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 12,060 | DART ↗ |
| 2026-01-02 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 11,750 | DART ↗ |
| 2025-12-26 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 1,070 | DART ↗ |
| 2025-12-02 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 15,743 | DART ↗ |
| 2025-12-01 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 32,000 | DART ↗ |
| 2025-11-27 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 30,789 | DART ↗ |
| 2025-11-25 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 13,138 | DART ↗ |
| 2025-11-24 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 12,000 | DART ↗ |
| 2025-11-21 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 3,000 | DART ↗ |
| 2025-11-19 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 3,000 | DART ↗ |
| 2025-11-17 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 3,500 | DART ↗ |
| 2025-11-17 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition in exchange(+) | 4,000 | DART ↗ |
| 2025-10-29 | Jinsoo Park | Director | Paid-in capital increase by third-party allotment(+) | 87,138 | DART ↗ |
| 2025-09-24 | Jinsoo Park | Director | Exercise of convertible bond rights(+) | 347,643 | DART ↗ |
| 2025-08-22 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Exercise of convertible bond rights(+) | 6,015 | DART ↗ |
| 2025-07-31 | JOOSUNG SEA & AIR CO.,LTD | 10% shareholder | Acquisition of paid-in new shares(+) | 162,080 | DART ↗ |
| 2025-04-17 | JOOSUNG SEA & AIR CO.,LTD. | 10% shareholder | Paid-in capital increase by third-party allotment(+) | 324,266 | DART ↗ |
| 2025-04-17 | Jinsoo Park | Director | Paid-in capital increase by third-party allotment(+) | 155,642 | DART ↗ |
| 2025-04-17 | Park Jun-beom | Director | Paid-in capital increase by third-party allotment(+) | 363,164 | DART ↗ |
| 2025-03-28 | JOOSUNG SEA & AIR CO.,LTD. | 10% shareholder | Paid-in capital increase by third-party allotment(+) | 1,429,739 | DART ↗ |
| 2025-03-26 | Orbitech Co., Ltd. | 10% shareholder | Disposal in OTC(-) | 3,192,341 | DART ↗ |
| 2025-03-26 | JOOSUNG SEA & AIR CO.,LTD. | 10% shareholder | Acquisition in OTC(+) | 3,585,196 | DART ↗ |
| 2025-03-26 | Jinsoo Park | Director | New appointment(+) | 210,971 | DART ↗ |
| 2025-03-26 | Park Jun-beom | Director | New appointment(+) | 126,583 | DART ↗ |
| 2025-01-15 | Jinsoo Park | Director | CB acquisition(+) | 164,011 | DART ↗ |
| 2025-01-07 | Orbitech Co., Ltd. | 10% shareholder | 장외매도(-) | 617,283 | DART ↗ |
| 2024-12-06 | Jinsoo Park | Director | CB acquisition(+) | 53,078 | DART ↗ |