SOUTH KOREA · OPENDART
TLB Co., Ltd.
티엘비 · 356860 · KOSDAQ · Technology · Semiconductors
Score
Not ranked: no net buying on the exchange by an individual insider in the last 180 days.
Insider timeline
2 insiders bought within 2 days, 28 Jul to 29 Jul: 1 Board member, 1 Executive. 1 more bought afterwards. The share closed at 24,050.00 on the first of those days and at 39,150.00 most recently (+62.8%).
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 28 Jul – 29 Jul, with 2 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, +10.5% over these six months
The closing price of each day, from 35,420.05 on 2026-04-21 to 39,150.00 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 +10.5%, the typical one −31.9%, 42.4 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 |
|---|---|---|---|---|---|---|
| JI YONG SOO | Executive | — | 5 | — | — | — |
| KIM CHEOL | Executive | 1 | — | 46.5M KRW | 2026-07-29 | +82.9% |
| JOUNG JAEWOO | Executive | 1 | — | 82.6M KRW | 2026-08-18 | +14.0% |
| PARK SANG IK | Board member | 1 | — | 130.9M KRW | 2026-07-08 | +23.5% |
| JANG SUNGJIN | Board member | 1 | — | 21.4M KRW | 2026-07-14 | +7.7% |
| OH JUNG HOON | Board member | 1 | — | 25.9M KRW | 2026-07-28 | +62.8% |
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 28,601.29 KRW a share on average (3 purchase lines, 3 buyers, 2026-07-28 – 2026-08-18). The close on 2026-10-16 was 36.9% above that price.
The latest purchase (2026-08-18) was at 34,150.00 KRW; the close was 14.6% above that price.
Prices paid are weighted by shares and taken from the filings; dividends are not counted. Not scored. 5 more purchase lines could not be compared with the share price and are left out.
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | JOUNG JAEWOO | Vice president | Bought on the exchange | 2,420 | ₩34,150 | ₩82.6M | DART ↗ |
| 2026-07-29 | KIM CHEOL | Managing director | Bought on the exchange | 2,000 | ₩23,263 | ₩46.5M | DART ↗ |
| 2026-07-28 | OH JUNG HOON | Director | Bought on the exchange | 1,000 | ₩25,850 | ₩25.9M | DART ↗ |
| 2026-07-14 | JANG SUNGJIN | Director | Bought on the exchange | 300 | ₩71,500 | ₩21.4M | DART ↗ |
| 2026-07-08 | PARK SANG IK | Director | Bought on the exchange | 2,100 | ₩62,346 | ₩130.9M | DART ↗ |
| 2026-06-15 | JI YONG SOO | Managing director | Sold on the exchange | 1,700 | ₩99,977 | ₩170.0M | DART ↗ |
| 2026-06-12 | JI YONG SOO | Managing director | Sold on the exchange | 500 | ₩99,220 | ₩49.6M | DART ↗ |
| 2026-06-11 | JI YONG SOO | Managing director | Sold on the exchange | 1,500 | ₩103,400 | ₩155.1M | DART ↗ |
| 2026-06-10 | JI YONG SOO | Managing director | Sold on the exchange | 1,000 | ₩101,423 | ₩101.4M | DART ↗ |
| 2026-06-09 | JI YONG SOO | Managing director | Sold on the exchange | 2,000 | ₩99,925 | ₩199.8M | DART ↗ |
| 2026-02-19 | PARK SANG IK | Director | Bought on the exchange | 500 | ₩62,000 | ₩31.0M | DART ↗ |
| 2026-02-11 | PARK SANG IK | Director | Bought on the exchange | 500 | ₩55,400 | ₩27.7M | DART ↗ |
| 2026-02-06 | PARK SANG IK | Director | Bought on the exchange | 500 | ₩57,400 | ₩28.7M | DART ↗ |
Other changes in holdings · 58
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 |
|---|---|---|---|---|---|
| 2026-07-20 | HAN HYUN JONG | Vice president | Acquisition of new shares without compensation(+) | 2,000 | DART ↗ |
| 2026-07-20 | CHOI MIN HO | Senior managing director | Acquisition of new shares without compensation(+) | 49,000 | DART ↗ |
| 2026-07-20 | JI YONG SOO | Managing director | Acquisition of new shares without compensation(+) | 29,696 | DART ↗ |
| 2026-07-20 | Cho Seunggeon | President | Acquisition of new shares without compensation(+) | 340,000 | DART ↗ |
| 2026-07-20 | JOUNG JAEWOO | Vice president | Acquisition of new shares without compensation(+) | 1,290 | DART ↗ |
| 2026-07-20 | JANG SUNGJIN | Director | Acquisition of new shares without compensation(+) | 300 | DART ↗ |
| 2026-07-20 | LEE SEHYUN | Vice president | Acquisition of new shares without compensation(+) | 386,000 | DART ↗ |
| 2026-07-20 | OH JUNG HOON | Director | Acquisition of new shares without compensation(+) | 233 | DART ↗ |
| 2026-07-20 | SHIN WON KIL | Director | Acquisition of new shares without compensation(+) | 162 | DART ↗ |
| 2026-07-20 | BAEK SUNG HYUN | CEO | Acquisition of new shares without compensation(+) | 1,911,788 | DART ↗ |
| 2026-07-20 | PARK SANG IK | Director | Acquisition of new shares without compensation(+) | 5,600 | DART ↗ |
| 2026-07-20 | KIM YONG HYUN | Senior managing director | Acquisition of new shares without compensation(+) | 2,762 | DART ↗ |
| 2026-07-15 | JI YONG SOO | Managing director | Others(-) | 6,396 | DART ↗ |
| 2026-07-15 | JI YONG SOO | Managing director | Acquisition of paid-in new shares(+) | 6,396 | DART ↗ |
| 2026-07-15 | JOUNG JAEWOO | Vice president | Others(-) | 975 | DART ↗ |
| 2026-07-15 | JOUNG JAEWOO | Vice president | Acquisition of paid-in new shares(+) | 1,170 | DART ↗ |
| 2026-07-15 | LEE SEHYUN | Vice president | Others(-) | 10,000 | DART ↗ |
| 2026-07-15 | LEE SEHYUN | Vice president | Acquisition of paid-in new shares(+) | 10,000 | DART ↗ |
| 2026-07-15 | OH JUNG HOON | Director | Others(-) | 42 | DART ↗ |
| 2026-07-15 | OH JUNG HOON | Director | Acquisition of paid-in new shares(+) | 33 | DART ↗ |
| 2026-07-15 | SHIN WON KIL | Director | Others(-) | 27 | DART ↗ |
| 2026-07-15 | SHIN WON KIL | Director | Acquisition of paid-in new shares(+) | 32 | DART ↗ |
| 2026-07-15 | BAEK SUNG HYUN | CEO | Others(-) | 131,490 | DART ↗ |
| 2026-07-15 | BAEK SUNG HYUN | CEO | Acquisition of paid-in new shares(+) | 157,788 | DART ↗ |
| 2026-07-15 | KIM YONG HYUN | Senior managing director | Others(-) | 469 | DART ↗ |
| 2026-07-15 | KIM YONG HYUN | Senior managing director | Acquisition of paid-in new shares(+) | 562 | DART ↗ |
| 2026-07-15 | PARK SANG IK | Director | Others(-) | 3,746 | DART ↗ |
| 2026-07-01 | JOUNG JAEWOO | Vice president | New appointment(+) | 1,095 | DART ↗ |
| 2026-06-29 | LEE SEHYUN | Vice president | Disposal in exchange(-) | 21,982 | DART ↗ |
| 2026-06-26 | Cho Seunggeon | President | Disposal in exchange(-) | 1,778 | DART ↗ |
| 2026-06-25 | CHOI MIN HO | Senior managing director | Disposal in exchange(-) | 10,447 | DART ↗ |
| 2026-06-25 | Cho Seunggeon | President | Disposal in exchange(-) | 29,850 | DART ↗ |
| 2026-06-25 | LEE SEHYUN | Vice president | Disposal in OTC(-) | 30,000 | DART ↗ |
| 2026-06-23 | PARK SANG IK | Director | Acquisition in OTC(+) | 3,000 | DART ↗ |
| 2026-06-23 | HAN HYUN JONG | Vice president | Disposal in OTC(-) | 426 | DART ↗ |
| 2026-06-23 | Cho Seunggeon | President | Disposal in OTC(-) | 39,864 | DART ↗ |
| 2026-06-23 | LEE SEHYUN | Vice president | Disposal in OTC(-) | 17,186 | DART ↗ |
| 2026-06-23 | BAEK SUNG HYUN | CEO | Acquisition in OTC(+) | 30,000 | DART ↗ |
| 2026-06-22 | Cho Seunggeon | President | Disposal in OTC(-) | 1,000 | DART ↗ |
| 2026-06-22 | LEE SEHYUN | Vice president | Disposal in OTC(-) | 1,000 | DART ↗ |
| 2026-06-19 | BAEK SUNG HYUN | CEO | Disposal in OTC(-) | 150,000 | DART ↗ |
| 2026-06-18 | BAEK SUNG HYUN | CEO | Disposal in OTC(-) | 3,000 | DART ↗ |
| 2026-06-18 | BAEK SUNG HYUN | CEO | Disposal in OTC(-) | 301,469 | DART ↗ |
| 2026-06-12 | HAN HYUN JONG | Vice president | Others(+) | 426 | DART ↗ |
| 2026-06-12 | OH JUNG HOON | Director | Others(+) | 42 | DART ↗ |
| 2026-06-12 | SHIN WON KIL | Director | Others(+) | 27 | DART ↗ |
| 2026-06-12 | PARK SANG IK | Director | Others(+) | 746 | DART ↗ |
| 2026-06-12 | KIM YONG HYUN | Senior managing director | Others(+) | 469 | DART ↗ |
| 2026-06-12 | CHOI MIN HO | Senior managing director | Others(+) | 10,447 | DART ↗ |
| 2026-06-12 | Cho Seunggeon | President | Others(+) | 72,492 | DART ↗ |
| 2026-06-12 | LEE SEHYUN | Vice president | Others(+) | 80,168 | DART ↗ |
| 2026-06-12 | BAEK SUNG HYUN | CEO | Others(+) | 405,959 | DART ↗ |
| 2026-06-12 | JI YONG SOO | Managing director | Others(+) | 6,396 | DART ↗ |
| 2026-05-18 | Cho Seunggeon | President | Others(+) | 700 | DART ↗ |
| 2026-05-15 | Cho Seunggeon | President | Lending(-) | 700 | DART ↗ |
| 2026-01-01 | OH JUNG HOON | Director | New appointment(+) | 200 | DART ↗ |
| 2026-01-01 | SHIN WON KIL | Director | New appointment(+) | 130 | DART ↗ |
| 2026-01-01 | PARK SANG IK | Director | New appointment(+) | 2,000 | DART ↗ |