South Korea Semiconductors & Semiconductor Equipment

Samyoung S&C Co Ltd (361670)

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Samyoung S&C Co Ltd experienced significant insider trading activity recently, with three individuals executing twenty buy orders totaling 48.68 million KRW. These acquisitions occurred amidst a 35.8% stock price increase over ninety days. No sell transactions were recorded during this period, reflecting consistent accumulation by directors and other stakeholders despite the absence of recent results financiers.
Ticker: 361670 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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Insider trades have triggered activity signals for Samyoung S&C Co Ltd. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
233.85
Quantity 46,266 +32.0%
Value ₩2,089,577
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
373.09
Quantity 13,365 -17.1%
Value ₩279,615
Ko Seung Nam (고승남) Unclassified position (전무이사) Director
Transaction date
Purchase
Price
92.88
Quantity 76,067 -22.2%
Value ₩2,301,664
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,515.00
Quantity 1,000 +0.0%
Value ₩100,000
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
3,504.00
Quantity 1,000 +9.0%
Value ₩100,000
Ko Seung Nam (고승남) Unclassified position (전무이사) Director
Transaction date
Purchase
Price
3,502.00
Quantity 1,000 +2.5%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,522.00
Quantity 1,000 +0.1%
Value ₩100,000
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
3,586.00
Quantity 1,000 +13.1%
Value ₩100,000
Ko Seung Nam (고승남) Unclassified position (전무이사) Director
Transaction date
Purchase
Price
3,571.00
Quantity 1,000 +2.1%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,558.00
Quantity 1,000 +0.2%
Value ₩100,000
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
3,581.00
Quantity 1,000 +5.8%
Value ₩100,000
Ko Seung Nam (고승남) Unclassified position (전무이사) Director
Transaction date
Purchase
Price
3,591.00
Quantity 1,000 +5.7%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,562.00
Quantity 1,000 +0.2%
Value ₩100,000
Ko Seung Nam (고승남) Unclassified position (전무이사) Director
Transaction date
Purchase
Price
3,602.00
Quantity 1,000 +1.5%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,609.00
Quantity 1,000 +0.0%
Value ₩100,000
Ko Seung Nam (고승남) Unclassified position (전무이사) Director
Transaction date
Purchase
Price
3,609.00
Quantity 1,000 +2.5%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,601.00
Quantity 1,000 +0.1%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,626.00
Quantity 1,000 +0.0%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,641.00
Quantity 1,000 +0.0%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,619.00
Quantity 1,000 +0.0%
Value ₩100,000
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 2026-09-14 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
46,266 +32.0%
233.85
₩2,089,577 		46,266 +32.0% 233.85 ₩2,089,577
2026-09-15 2026-09-11 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
13,365 -17.1%
373.09
₩279,615 		13,365 -17.1% 373.09 ₩279,615
2026-09-11 2026-09-10 B Purchase Ko Seung Nam (고승남)

Unclassified position (전무이사)

Director
76,067 -22.2%
92.88
₩2,301,664 		76,067 -22.2% 92.88 ₩2,301,664
2026-09-10 2026-09-10 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.0%
3,515.00
₩100,000 		1,000 +0.0% 3,515.00 ₩100,000
2026-09-15 2026-09-09 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
1,000 +9.0%
3,504.00
₩100,000 		1,000 +9.0% 3,504.00 ₩100,000
2026-09-11 2026-09-09 B Purchase Ko Seung Nam (고승남)

Unclassified position (전무이사)

Director
1,000 +2.5%
3,502.00
₩100,000 		1,000 +2.5% 3,502.00 ₩100,000
2026-09-10 2026-09-09 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.1%
3,522.00
₩100,000 		1,000 +0.1% 3,522.00 ₩100,000
2026-09-15 2026-09-08 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
1,000 +13.1%
3,586.00
₩100,000 		1,000 +13.1% 3,586.00 ₩100,000
2026-09-11 2026-09-08 B Purchase Ko Seung Nam (고승남)

Unclassified position (전무이사)

Director
1,000 +2.1%
3,571.00
₩100,000 		1,000 +2.1% 3,571.00 ₩100,000
2026-09-10 2026-09-08 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.2%
3,558.00
₩100,000 		1,000 +0.2% 3,558.00 ₩100,000
2026-09-15 2026-09-07 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
1,000 +5.8%
3,581.00
₩100,000 		1,000 +5.8% 3,581.00 ₩100,000
2026-09-11 2026-09-07 B Purchase Ko Seung Nam (고승남)

Unclassified position (전무이사)

Director
1,000 +5.7%
3,591.00
₩100,000 		1,000 +5.7% 3,591.00 ₩100,000
2026-09-10 2026-09-07 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.2%
3,562.00
₩100,000 		1,000 +0.2% 3,562.00 ₩100,000
2026-09-11 2026-09-04 B Purchase Ko Seung Nam (고승남)

Unclassified position (전무이사)

Director
1,000 +1.5%
3,602.00
₩100,000 		1,000 +1.5% 3,602.00 ₩100,000
2026-09-10 2026-09-04 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.0%
3,609.00
₩100,000 		1,000 +0.0% 3,609.00 ₩100,000
2026-09-11 2026-09-03 B Purchase Ko Seung Nam (고승남)

Unclassified position (전무이사)

Director
1,000 +2.5%
3,609.00
₩100,000 		1,000 +2.5% 3,609.00 ₩100,000
2026-09-10 2026-09-03 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.1%
3,601.00
₩100,000 		1,000 +0.1% 3,601.00 ₩100,000
2026-09-10 2026-09-01 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.0%
3,626.00
₩100,000 		1,000 +0.0% 3,626.00 ₩100,000
2026-09-10 2026-08-31 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.0%
3,641.00
₩100,000 		1,000 +0.0% 3,641.00 ₩100,000
2026-09-10 2026-08-28 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.0%
3,619.00
₩100,000 		1,000 +0.0% 3,619.00 ₩100,000
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