SOUTH KOREA · OPENDART
HiDeep Inc.
하이딥 · 365590 · KOSDAQ · Technology · Semiconductor Equipment & Materials
Score
46.9
Insider timeline
One insider bought, 4 times, the latest (16 Jul). The share closed at 2,136.00 that day and at 1,418.00 most recently (−33.6%).
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, −64.8% over these six months
The closing price of each day, from 4,030.00 on 2026-04-21 to 1,418.00 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 −64.8%, the typical one −31.9%, 32.9 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 |
|---|---|---|---|---|---|---|
| KO BEOM KYU | CEO / chair | 4 | — | 156.6M KRW | 2026-07-08 | −31.2% |
Insiders' buying price vs the latest close
No purchase price could be compared with the share price (price or share count missing, another currency, or far from that day's close).
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 |
|---|---|---|---|---|---|---|---|
| 2026-07-16 | KO BEOM KYU | CEO | Bought on the exchange | 27,629 | ₩1,039 | ₩28.7M | DART ↗ |
| 2026-07-15 | KO BEOM KYU | CEO | Bought on the exchange | 28,287 | ₩1,021 | ₩28.9M | DART ↗ |
| 2026-07-09 | KO BEOM KYU | CEO | Bought on the exchange | 21,947 | ₩1,032 | ₩22.6M | DART ↗ |
| 2026-07-08 | KO BEOM KYU | CEO | Bought on the exchange | 81,710 | ₩934 | ₩76.3M | DART ↗ |
| 2026-04-03 | Shin Hyunchol | Outside director | Sold on the exchange | 4,535 | ₩2,035 | ₩9.2M | DART ↗ |
| 2026-04-02 | Shin Hyunchol | Outside director | Sold on the exchange | 533 | ₩2,031 | ₩1.1M | DART ↗ |
| 2026-04-01 | Shin Hyunchol | Outside director | Sold on the exchange | 1,600 | ₩2,049 | ₩3.3M | DART ↗ |
| 2026-03-30 | Shin Hyunchol | Outside director | Sold on the exchange | 2,100 | ₩2,273 | ₩4.8M | DART ↗ |
| 2026-03-27 | Shin Hyunchol | Outside director | Sold on the exchange | 9,500 | ₩2,265 | ₩21.5M | DART ↗ |
| 2026-03-27 | Shin Hyunchol | Outside director | Bought on the exchange | 1,000 | ₩2,248 | ₩2.2M | DART ↗ |
| 2026-03-26 | Shin Hyunchol | Outside director | Sold on the exchange | 2,000 | ₩2,230 | ₩4.5M | DART ↗ |
| 2026-01-15 | BAIK SEUNG CHEOL | Managing director | Sold on the exchange | 10,000 | ₩3,685 | ₩36.9M | DART ↗ |
Other changes in holdings · 33
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 |
|---|---|---|---|---|---|
| 2026-08-22 | KO BEOM KYU | CEO | Stock consolidation | 6,766,793 | DART ↗ |
| 2026-08-22 | KIM YUN JOUNG | Vice president | Stock consolidation | 139,029 | DART ↗ |
| 2026-08-22 | CHO YOUNG HO | Vice president | Stock consolidation | 152,661 | DART ↗ |
| 2026-08-22 | GOH TAE HOON | Vice president | Stock consolidation | 313,059 | DART ↗ |
| 2026-08-22 | KIM/BUMSOO | Director | Stock consolidation | 9,634 | DART ↗ |
| 2026-08-22 | KIM SE YEOB | Managing director | Stock consolidation | 66,469 | DART ↗ |
| 2026-08-22 | LEE HWAN HEE | Director | Stock consolidation | 35,635 | DART ↗ |
| 2026-06-18 | KO BEOM KYU | CEO | Paid-in capital increase by third-party allotment(+) | 3,753,351 | DART ↗ |
| 2026-05-27 | Byun Mun Sub | Director | Donation(-) | 10,852 | DART ↗ |
| 2026-04-28 | LEE HWAN HEE | Director | Stock options(+) | 2,858 | DART ↗ |
| 2026-04-28 | Byun Mun Sub | Director | Stock options(+) | 5,717 | DART ↗ |
| 2026-04-28 | BAIK SEUNG CHEOL | Managing director | Stock options(+) | 2,858 | DART ↗ |
| 2025-12-19 | KO BEOM KYU | CEO | Capital reduction | 38,482,645 | DART ↗ |
| 2025-12-19 | GOH TAE HOON | Vice president | Capital reduction | 2,504,472 | DART ↗ |
| 2025-12-19 | KIM YUN JOUNG | Vice president | Capital reduction | 1,112,234 | DART ↗ |
| 2025-12-19 | CHO YOUNG HO | Vice president | Capital reduction | 1,221,289 | DART ↗ |
| 2025-12-19 | Shin Hyunchol | Outside director | Capital reduction | 77,072 | DART ↗ |
| 2025-12-19 | KIM SE YEOB | Managing director | Capital reduction | 531,749 | DART ↗ |
| 2025-12-19 | BAIK SEUNG CHEOL | Managing director | Capital reduction | 170,540 | DART ↗ |
| 2025-12-19 | KIM/BUMSOO | Director | Capital reduction | 77,072 | DART ↗ |
| 2025-12-19 | Byun Mun Sub | Director | Capital reduction | 20,541 | DART ↗ |
| 2025-12-19 | LEE HWAN HEE | Director | Capital reduction | 273,647 | DART ↗ |
| 2025-09-01 | KIM YUN JOUNG | Vice president | Donation(-) | 80,000 | DART ↗ |
| 2025-06-19 | Byun Mun Sub | Director | Donation(-) | 40,000 | DART ↗ |
| 2025-05-23 | GOH TAE HOON | Vice president | Donation(-) | 300,000 | DART ↗ |
| 2025-04-25 | KIM YUN JOUNG | Vice president | Stock options(+) | 57,177 | DART ↗ |
| 2025-04-25 | CHO YOUNG HO | Vice president | Stock options(+) | 28,589 | DART ↗ |
| 2025-04-25 | BAIK SEUNG CHEOL | Managing director | Stock options(+) | 14,294 | DART ↗ |
| 2025-04-25 | KIM SE YEOB | Managing director | Stock options(+) | 57,177 | DART ↗ |
| 2025-04-25 | Byun Mun Sub | Director | Stock options(+) | 28,588 | DART ↗ |
| 2025-02-26 | KIM/BUMSOO | Director | Paid-in capital increase by third-party allotment(+) | 96,340 | DART ↗ |
| 2025-02-26 | KO BEOM KYU | CEO | Paid-in capital increase by third-party allotment(+) | 4,306,360 | DART ↗ |
| 2025-02-26 | Shin Hyunchol | Outside director | Paid-in capital increase by third-party allotment(+) | 96,340 | DART ↗ |