South Korea Professional & Commercial Services

Clean & Science Co Ltd (045520)

Clean & Science director Choi Jae won executed two consecutive buy transactions totaling 17.26 million KRW in September 2026. These acquisitions occurred amidst a 7.7% decline in share price over the preceding ninety days. No selling activity was recorded during this period, reflecting a singular focus on increasing equity holdings by leadership.

No insider activity signal

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Ticker: 045520 Exchange: KOE

• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings

Insider activity signals

0 activity signals detected for Clean & Science Co Ltd

No insider activity signals detected

Insider trades have not triggered unusual activity signals for this company.

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Company data & Insiders

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Trades

Choi Jae won (최재원) Director (이사) Director Large shareholder

Transaction date 10 Sep 2026

Purchase

Price

159.48

Quantity 63,046 +34.4%

Value ₩78,125

Comments Filing

Choi Jae won (최재원) Director (이사) Director Large shareholder

Transaction date 9 Sep 2026

Purchase

Price

121.50

Quantity 64,352 +36.9%

Value ₩49,756

Comments Filing

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value	Details
2026-09-11	2026-09-10	B Purchase	Choi Jae won (최재원) Director (이사) Director Large shareholder	63,046 +34.4% 159.48 ₩78,125	63,046 +34.4%	159.48	₩78,125
2026-09-11	2026-09-09	B Purchase	Choi Jae won (최재원) Director (이사) Director Large shareholder	64,352 +36.9% 121.50 ₩49,756	64,352 +36.9%	121.50	₩49,756