South Korea Chemicals

KOYJ Co Ltd (121850)

KOYJ Co Ltd recorded six consecutive buy transactions totaling approximately 289.7 million KRW over a recent period. These acquisitions occurred despite a 89.8% decline in share price over the last quarter. No executive-level activity was reported, and the firm has not disclosed a recent earnings report.
Ticker: 121850 Exchange: KOE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
CHOI YEON JU (최연주) Unclassified position Large shareholder
Transaction date
Purchase
Price
304.51
Quantity 1,159 +26.5%
Value ₩4,331,096
CHOI YEON JU (최연주) Unclassified position Large shareholder
Transaction date
Purchase
Price
185.13
Quantity 82,339 -6.2%
Value ₩854,832
CHOI YEON JU (최연주) Unclassified position Large shareholder
Transaction date
Purchase
Price
314.73
Quantity 39,795 +23.1%
Value ₩2,151,449
CHOI YEON JU (최연주) Unclassified position Large shareholder
Transaction date
Purchase
Price
221.00
Quantity 120,631 +25.4%
Value ₩26,659,451
CHOI YEON JU (최연주) Unclassified position Large shareholder
Transaction date
Purchase
Price
292.00
Quantity 195,382 +70.0%
Value ₩57,051,544
CHOI YEON JU (최연주) Unclassified position Large shareholder
Transaction date
Purchase
Price
321.00
Quantity 101,214 +56.9%
Value ₩32,489,694
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-09-15 2026-09-15 B Purchase CHOI YEON JU (최연주)

Unclassified position

Large shareholder
1,159 +26.5%
304.51
₩4,331,096 		1,159 +26.5% 304.51 ₩4,331,096
2026-09-15 2026-09-14 B Purchase CHOI YEON JU (최연주)

Unclassified position

Large shareholder
82,339 -6.2%
185.13
₩854,832 		82,339 -6.2% 185.13 ₩854,832
2026-09-15 2026-09-11 B Purchase CHOI YEON JU (최연주)

Unclassified position

Large shareholder
39,795 +23.1%
314.73
₩2,151,449 		39,795 +23.1% 314.73 ₩2,151,449
2026-09-15 2026-09-10 B Purchase CHOI YEON JU (최연주)

Unclassified position

Large shareholder
120,631 +25.4%
221.00
₩26,659,451 		120,631 +25.4% 221.00 ₩26,659,451
2026-09-15 2026-09-09 B Purchase CHOI YEON JU (최연주)

Unclassified position

Large shareholder
195,382 +70.0%
292.00
₩57,051,544 		195,382 +70.0% 292.00 ₩57,051,544
2026-09-15 2026-09-08 B Purchase CHOI YEON JU (최연주)

Unclassified position

Large shareholder
101,214 +56.9%
321.00
₩32,489,694 		101,214 +56.9% 321.00 ₩32,489,694
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