SOUTH KOREA · OPENDART
TEMC Co., Ltd.
티이엠씨 · 425040 · KOSDAQ · Basic Materials · Specialty Chemicals
Score
46.6
Insider timeline
One insider bought, once (22 Apr). The share closed at 12,440.00 that day and at 14,320.00 most recently (+15.1%).
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, +15.6% over these six months
The closing price of each day, from 12,390.00 on 2026-04-21 to 14,320.00 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 +15.6%, the typical one −31.9%, 47.5 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 |
|---|---|---|---|---|---|---|
| Oh Seung-woo | Executive | 1 | — | 95.5M KRW | 2026-04-22 | +15.1% |
Insiders' buying price vs the latest close
Insiders paid 12,620.00 KRW a share on average (1 purchase line, 1 buyer, 2026-04-22 – 2026-04-22). The close on 2026-10-16 was 13.5% 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 |
|---|---|---|---|---|---|---|---|
| 2026-04-22 | Oh Seung-woo | Centre head | Bought on the exchange | 7,569 | ₩12,620 | ₩95.5M | DART ↗ |
Other changes in holdings · 17
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 |
|---|---|---|---|---|---|
| 2026-06-04 | Yu Weon Yang | CEO | Off-hour trading(+) | 30,000 | DART ↗ |
| 2026-04-30 | Choi Chan Kyu | Senior managing director | Stock options(+) | 3,000 | DART ↗ |
| 2026-04-30 | Song Chang-geun | Managing director | Stock options(+) | 9,000 | DART ↗ |
| 2026-04-30 | Jeon SangHoon | Vice president | Exercise of appraisal rights(+) | 17,400 | DART ↗ |
| 2026-04-30 | Kim Sung Kon | Vice president | Stock options(+) | 4,500 | DART ↗ |
| 2026-03-03 | Choi Chan Kyu | Senior managing director | Others(+) | 6,000 | DART ↗ |
| 2026-02-26 | Jeon SangHoon | Vice president | Treasury stock bonus(+) | 2,343 | DART ↗ |
| 2026-02-26 | Kim JunKyu | Centre head | Treasury stock bonus(+) | 1,288 | DART ↗ |
| 2026-02-26 | Kim DaeHyun | Executive | Treasury stock bonus(+) | 1,640 | DART ↗ |
| 2026-02-26 | Choi EunKwang | Executive | Treasury stock bonus(+) | 1,991 | DART ↗ |
| 2026-02-26 | Yeo DongIl | Centre head | Treasury stock bonus(+) | 1,230 | DART ↗ |
| 2026-02-26 | Oh Seung-woo | Centre head | Treasury stock bonus(+) | 1,054 | DART ↗ |
| 2026-02-26 | Cho Iksung | Executive | Treasury stock bonus(+) | 1,991 | DART ↗ |
| 2026-02-26 | Song Chang-geun | Managing director | Treasury stock bonus(+) | 1,757 | DART ↗ |
| 2026-02-26 | Kim Sung Kon | Vice president | Treasury stock bonus(+) | 585 | DART ↗ |
| 2026-02-26 | Yu Weon Yang | CEO | Treasury stock bonus(+) | 20,034 | DART ↗ |
| 2025-04-24 | Choi Chan Kyu | Senior managing director | Exercise of appraisal rights(+) | 3,000 | DART ↗ |