SOUTH KOREA · OPENDART
K3I. Co., Ltd.
케이쓰리아이 · 431190 · KOSDAQ · Technology · Software—Infrastructure
Score
68.7
Insider timeline
3 insiders bought within 7 days, 25 Jun to 1 Jul: 2 Board member, 1 Executive. 1 more bought afterwards. The share closed at 2,135.00 on the first of those days and at 4,050.00 most recently (+89.7%). 1 of the buyers also disclosed a sale in the window.
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.
×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.
▮Purple band: several insiders bought within 15 days
The band marks the stretch with the most different buyers: at most 15 days long and at least two people. Here it is 25 Jun – 1 Jul, with 3 insiders. Only the strongest stretch is marked. Several people deciding the same thing is harder to explain by one person's private reasons, but insiders often buy together just after a closed period ends, so compare it with the grey weekly bars.
Blue line: this share's price, −15.8% over these six months
The closing price of each day, from 4,810.00 on 2026-04-21 to 4,050.00 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 −15.8%, the typical one −31.9%, 16.1 points ahead. 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 |
|---|---|---|---|---|---|---|
| YOUNG SUP, PARK | Executive | 2 | — | 50.0M KRW | 2026-06-25 | +89.7% |
| LEE JAE YOUNG | CEO / chair | 1 | — | 115.7M KRW | 2026-08-05 | +33.0% |
| KYUNG SOO, HWANG | Board member | 2 | 2 | 50.3M KRW | 2026-06-24 | +76.1% |
| LEE HYUN SUK | Board member | 1 | — | 10.2M KRW | 2026-07-01 | +73.8% |
Purchases against sales
Shares of the reported value of insider transactions in the 180-day window. Sales include disposals for tax, at option exercise or under a pre-set plan, which say little about an insider's view. The split describes what was disclosed; it is not a signal.
Insiders' buying price vs the latest close
Insiders paid 2,522.20 KRW a share on average (6 purchase lines, 4 buyers, 2026-06-24 – 2026-08-05). The close on 2026-10-16 was 60.6% above that price.
The latest purchase (2026-08-05) was at 2,892.00 KRW; the close was 40.0% 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 |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | KYUNG SOO, HWANG | Director | Sold on the exchange | 3,230 | ₩3,101 | ₩10.0M | DART ↗ |
| 2026-09-11 | KYUNG SOO, HWANG | Director | Sold on the exchange | 6,460 | ₩3,101 | ₩20.0M | DART ↗ |
| 2026-08-05 | LEE JAE YOUNG | CEO | Bought on the exchange | 40,017 | ₩2,892 | ₩115.7M | DART ↗ |
| 2026-07-01 | LEE HYUN SUK | Director | Bought on the exchange | 4,156 | ₩2,452 | ₩10.2M | DART ↗ |
| 2026-06-26 | YOUNG SUP, PARK | Managing director | Bought on the exchange | 3,055 | ₩2,068 | ₩6.3M | DART ↗ |
| 2026-06-25 | KYUNG SOO, HWANG | Director | Bought on the exchange | 2,300 | ₩2,268 | ₩5.2M | DART ↗ |
| 2026-06-25 | YOUNG SUP, PARK | Managing director | Bought on the exchange | 19,745 | ₩2,212 | ₩43.7M | DART ↗ |
| 2026-06-24 | KYUNG SOO, HWANG | Director | Bought on the exchange | 20,400 | ₩2,208 | ₩45.0M | DART ↗ |
Other changes in holdings · 15
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 |
|---|---|---|---|---|---|
| 2026-08-12 | LEE JAE YOUNG | CEO | Early termination of contract | 2,671 | DART ↗ |
| 2026-06-10 | LEE JAE YOUNG | CEO | Others(+) | 358 | DART ↗ |
| 2026-03-17 | LEE JAE YOUNG | CEO | Lending(-) | 580 | DART ↗ |
| 2026-03-04 | LEE JAE YOUNG | CEO | Others(+) | 343 | DART ↗ |
| 2026-02-26 | LEE JAE YOUNG | CEO | Lending(-) | 46 | DART ↗ |
| 2026-02-26 | LEE JAE YOUNG | CEO | Others(+) | 200 | DART ↗ |
| 2026-02-25 | LEE JAE YOUNG | CEO | Others(+) | 83 | DART ↗ |
| 2026-01-20 | LEE JAE YOUNG | CEO | Lending(-) | 195 | DART ↗ |
| 2026-01-19 | LEE JAE YOUNG | CEO | Others(+) | 195 | DART ↗ |
| 2025-08-22 | LEE JAE YOUNG | CEO | Lending(-) | 821 | DART ↗ |
| 2025-07-15 | LEE JAE YOUNG | CEO | Others(+) | 811 | DART ↗ |
| 2025-05-23 | LEE JAE YOUNG | CEO | Lending(-) | 100 | DART ↗ |
| 2025-03-18 | LEE JAE YOUNG | CEO | Lending(-) | 1,519 | DART ↗ |
| 2025-03-13 | LEE JAE YOUNG | CEO | Lending(-) | 1,400 | DART ↗ |
| 2025-01-02 | LEE HYUN SUK | Director | 신규선임(+) | 1,218 | DART ↗ |