Stock Trading Canary

Built: 2026-10-19T16:02:49+00:00 · 中文

← South Korea

SOUTH KOREA · OPENDART

GFC Life Science Co., Ltd.

지에프씨생명과학 · 388610 · KOSDAQ · Healthcare · Biotechnology

Score

50.8

Rank 408 of 745 · KR-v1 · as of 2026-10-18

Buyers 35%20
Size 25%62
Role 20%65
Recency 10%54
Conviction 10%100

Insider timeline

One insider bought, 29 times, the latest (11 Sep). The share closed at 5,720.00 that day and at 4,725.00 most recently (−17.4%).

Kang Hee CheolKang Hee CheolChief Executive OfficerCEO / chair2026-06-12 · Kang Hee Cheol · purchase · 330,577 KRW2026-07-09 · Kang Hee Cheol · purchase · 17,083,816 KRW2026-07-10 · Kang Hee Cheol · purchase · 5,223,132 KRW2026-07-13 · Kang Hee Cheol · purchase · 24,057,020 KRW2026-07-14 · Kang Hee Cheol · purchase · 25,984,896 KRW2026-07-15 · Kang Hee Cheol · purchase · 2,174,120 KRW2026-07-16 · Kang Hee Cheol · purchase · 6,045,948 KRW2026-07-20 · Kang Hee Cheol · purchase · 9,508,512 KRW2026-07-21 · Kang Hee Cheol · purchase · 5,023,524 KRW2026-07-29 · Kang Hee Cheol · purchase · 14,449,425 KRW2026-07-30 · Kang Hee Cheol · purchase · 12,099,780 KRW2026-07-31 · Kang Hee Cheol · purchase · 2,995,048 KRW2026-08-03 · Kang Hee Cheol · purchase · 8,987,389 KRW2026-08-04 · Kang Hee Cheol · purchase · 2,803,373 KRW2026-08-05 · Kang Hee Cheol · purchase · 564,752 KRW2026-08-11 · Kang Hee Cheol · purchase · 5,034,532 KRW2026-08-12 · Kang Hee Cheol · purchase · 3,538,230 KRW2026-08-13 · Kang Hee Cheol · purchase · 1,462,875 KRW2026-08-21 · Kang Hee Cheol · purchase · 2,092,120 KRW2026-08-24 · Kang Hee Cheol · purchase · 7,795,942 KRW2026-08-25 · Kang Hee Cheol · purchase · 2,715,996 KRW2026-08-28 · Kang Hee Cheol · purchase · 5,138,100 KRW2026-08-31 · Kang Hee Cheol · purchase · 2,176,675 KRW2026-09-01 · Kang Hee Cheol · purchase · 2,987,886 KRW2026-09-02 · Kang Hee Cheol · purchase · 198,854 KRW2026-09-04 · Kang Hee Cheol · purchase · 158,220 KRW2026-09-07 · Kang Hee Cheol · purchase · 2,636,054 KRW2026-09-10 · Kang Hee Cheol · purchase · 2,171,784 KRW2026-09-11 · Kang Hee Cheol · purchase · 774,900 KRWMayJunJulAugSepOct

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, −54.8% over these six months

The closing price of each day, from 10,450.00 on 2026-04-21 to 4,725.00 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 −54.8%, the typical one −31.9%, 22.9 points behind. It is not an index and not a comparison within one industry.

This company: insiders buying per month, last 12 months

1Nov
Dec
Jan
Feb
1Mar
1Apr
May
1Jun
1Jul
1Aug
1Sep
Oct

Darker bars are inside the 180-day window above.

Who traded

InsiderRolePurchasesSalesBoughtFirst purchaseShare price since
Kang Hee CheolCEO / chair29—176.2M KRW2026-06-12−30.6%

Insiders' buying price vs the latest close

Insiders paid 6,632.91 KRW a share on average (40 purchase lines, 2 buyers, 2025-11-04 – 2026-09-11). The close on 2026-10-16 was 28.8% below that price.

The latest purchase (2026-09-11) was at 5,740.00 KRW; the close was 17.7% below 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 dateInsiderRoleTradeSharesPriceValueFiling
2026-09-11Kang Hee CheolCEOBought on the exchange135₩5,740₩774,900DART ↗
2026-09-10Kang Hee CheolCEOBought on the exchange408₩5,323₩2.2MDART ↗
2026-09-07Kang Hee CheolCEOBought on the exchange527₩5,002₩2.6MDART ↗
2026-09-04Kang Hee CheolCEOBought on the exchange30₩5,274₩158,220DART ↗
2026-09-02Kang Hee CheolCEOBought on the exchange38₩5,233₩198,854DART ↗
2026-09-01Kang Hee CheolCEOBought on the exchange561₩5,326₩3.0MDART ↗
2026-08-31Kang Hee CheolCEOBought on the exchange415₩5,245₩2.2MDART ↗
2026-08-28Kang Hee CheolCEOBought on the exchange990₩5,190₩5.1MDART ↗
2026-08-25Kang Hee CheolCEOBought on the exchange478₩5,682₩2.7MDART ↗
2026-08-24Kang Hee CheolCEOBought on the exchange1,426₩5,467₩7.8MDART ↗
2026-08-21Kang Hee CheolCEOBought on the exchange386₩5,420₩2.1MDART ↗
2026-08-13Kang Hee CheolCEOBought on the exchange249₩5,875₩1.5MDART ↗
2026-08-12Kang Hee CheolCEOBought on the exchange590₩5,997₩3.5MDART ↗
2026-08-11Kang Hee CheolCEOBought on the exchange788₩6,389₩5.0MDART ↗
2026-08-05Kang Hee CheolCEOBought on the exchange94₩6,008₩564,752DART ↗
2026-08-04Kang Hee CheolCEOBought on the exchange240₩6,054₩1.5MDART ↗
2026-08-04Kang Hee CheolCEOBought on the exchange229₩5,897₩1.4MDART ↗
2026-08-03Kang Hee CheolCEOBought on the exchange163₩6,025₩982,075DART ↗
2026-08-03Kang Hee CheolCEOBought on the exchange1,401₩5,714₩8.0MDART ↗
2026-07-31Kang Hee CheolCEOBought on the exchange553₩5,416₩3.0MDART ↗
2026-07-30Kang Hee CheolCEOBought on the exchange2,310₩5,238₩12.1MDART ↗
2026-07-29Kang Hee CheolCEOBought on the exchange2,775₩5,207₩14.4MDART ↗
2026-07-21Kang Hee CheolCEOBought on the exchange836₩6,009₩5.0MDART ↗
2026-07-20Kang Hee CheolCEOBought on the exchange1,604₩5,928₩9.5MDART ↗
2026-07-16Kang Hee CheolCEOBought on the exchange999₩6,052₩6.0MDART ↗
2026-07-15Kang Hee CheolCEOBought on the exchange370₩5,876₩2.2MDART ↗
2026-07-14Kang Hee CheolCEOBought on the exchange4,704₩5,524₩26.0MDART ↗
2026-07-13Kang Hee CheolCEOBought on the exchange4,355₩5,524₩24.1MDART ↗
2026-07-10Kang Hee CheolCEOBought on the exchange1,044₩5,003₩5.2MDART ↗
2026-07-09Kang Hee CheolCEOBought on the exchange3,701₩4,616₩17.1MDART ↗
2026-06-12Kang Hee CheolCEOBought on the exchange59₩5,603₩330,577DART ↗
2026-04-08Kang Hee CheolCEOBought on the exchange417₩9,611₩4.0MDART ↗
2026-04-07Kang Hee CheolCEOBought on the exchange1,860₩9,329₩17.4MDART ↗
2026-04-06Kang Hee CheolCEOBought on the exchange3,310₩9,421₩31.2MDART ↗
2026-04-03Kang Hee CheolCEOBought on the exchange961₩9,405₩9.0MDART ↗
2026-04-02Kang Hee CheolCEOBought on the exchange1,152₩9,050₩10.4MDART ↗
2026-03-30JINWOO MINInside directorBought on the exchange100₩9,750₩975,000DART ↗
2025-11-06Kang Hee CheolCEOBought on the exchange23₩14,610₩336,030DART ↗
2025-11-05Kang Hee CheolCEOBought on the exchange739₩14,709₩10.9MDART ↗
2025-11-04Kang Hee CheolCEOBought on the exchange1,348₩15,298₩20.6MDART ↗
Other changes in holdings · 5

Option exercises, grants, new shares, inheritance, gifts, off-exchange trades and trades by companies and funds. Not counted in the score.

DateInsiderRoleReasonSharesFiling
2026-05-18Lee, Dong HwanManaging directorStock options(+)21,674DART ↗
2026-03-26JINWOO MINInside directorNew appointment(+)20,837DART ↗
2025-11-09Pyo Hyeong BaeExecutiveTermination of special relationship(-)7,500DART ↗
2025-06-30Pyo Hyeong BaeCEONew listing(+)0DART ↗
2025-06-30Kang Hee CheolCEONew listing(+)0DART ↗