South Korea Semiconductors & Semiconductor Equipment

Samyoung S&C Co Ltd (361670)

Samyoung S&C Co Ltd experienced significant insider trading activity recently, with four individuals accumulating shares. Non-executive director Pyun Dong Jun executed 52 buy transactions totaling over 520 million KRW. This consistent purchasing behavior occurred while the stock price rose 14.6% over the last quarter, reaching near its 52-week high without any reported selling.
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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Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
163.47
Quantity 89,953 +37.0%
Value ₩1,509,123
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
382.24
Quantity 87,637 +14.0%
Value ₩4,049,340
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
472.29
Quantity 27,627 -9.2%
Value ₩4,789,606
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,875.00
Quantity 1,000 +0.5%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,889.00
Quantity 1,000 +0.5%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,906.00
Quantity 1,000 +0.5%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,971.00
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
4,054.00
Quantity 1,000 +0.2%
Value ₩100,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,922.00
Quantity 2,310 +0.2%
Value ₩9,059,820
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,801.00
Quantity 7,312 +0.7%
Value ₩27,792,912
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,718.00
Quantity 7,175 +0.7%
Value ₩26,676,650
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,670.00
Quantity 3,150 +0.3%
Value ₩11,560,500
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,625.00
Quantity 6,859 +0.7%
Value ₩24,863,875
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,589.00
Quantity 11,513 +1.1%
Value ₩41,320,157
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,580.00
Quantity 85 +0.0%
Value ₩304,300
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
3,583.00
Quantity 640 +6.6%
Value ₩2,293,120
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,584.00
Quantity 115 +0.0%
Value ₩412,160
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
3,590.00
Quantity 100 +1.0%
Value ₩359,000
Pyun Dong Jun (변동준) Other Non-Executive Director (기타비상무이사) Non-Executive Director Large shareholder
Transaction date
Purchase
Price
3,607.00
Quantity 80 +0.0%
Value ₩288,560
Seo JeongHwan (서정환) Director (이사) Director
Transaction date
Purchase
Price
3,587.00
Quantity 315 +3.4%
Value ₩1,129,905
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-10-30 2026-10-27 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
89,953 +37.0%
163.47
₩1,509,123 		89,953 +37.0% 163.47 ₩1,509,123
2026-10-30 2026-10-26 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
87,637 +14.0%
382.24
₩4,049,340 		87,637 +14.0% 382.24 ₩4,049,340
2026-10-21 2026-10-21 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
27,627 -9.2%
472.29
₩4,789,606 		27,627 -9.2% 472.29 ₩4,789,606
2026-10-21 2026-10-20 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.5%
3,875.00
₩100,000 		1,000 +0.5% 3,875.00 ₩100,000
2026-10-21 2026-10-19 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.5%
3,889.00
₩100,000 		1,000 +0.5% 3,889.00 ₩100,000
2026-10-21 2026-10-16 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.5%
3,906.00
₩100,000 		1,000 +0.5% 3,906.00 ₩100,000
2026-10-21 2026-10-15 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.1%
3,971.00
₩100,000 		1,000 +0.1% 3,971.00 ₩100,000
2026-10-21 2026-10-14 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
1,000 +0.2%
4,054.00
₩100,000 		1,000 +0.2% 4,054.00 ₩100,000
2026-10-08 2026-10-08 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
2,310 +0.2%
3,922.00
₩9,059,820 		2,310 +0.2% 3,922.00 ₩9,059,820
2026-10-08 2026-10-07 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
7,312 +0.7%
3,801.00
₩27,792,912 		7,312 +0.7% 3,801.00 ₩27,792,912
2026-10-08 2026-10-06 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
7,175 +0.7%
3,718.00
₩26,676,650 		7,175 +0.7% 3,718.00 ₩26,676,650
2026-10-08 2026-10-02 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
3,150 +0.3%
3,670.00
₩11,560,500 		3,150 +0.3% 3,670.00 ₩11,560,500
2026-10-08 2026-10-01 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
6,859 +0.7%
3,625.00
₩24,863,875 		6,859 +0.7% 3,625.00 ₩24,863,875
2026-10-08 2026-09-30 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
11,513 +1.1%
3,589.00
₩41,320,157 		11,513 +1.1% 3,589.00 ₩41,320,157
2026-10-08 2026-09-29 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
85 +0.0%
3,580.00
₩304,300 		85 +0.0% 3,580.00 ₩304,300
2026-10-07 2026-09-29 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
640 +6.6%
3,583.00
₩2,293,120 		640 +6.6% 3,583.00 ₩2,293,120
2026-10-08 2026-09-28 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
115 +0.0%
3,584.00
₩412,160 		115 +0.0% 3,584.00 ₩412,160
2026-10-07 2026-09-28 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
100 +1.0%
3,590.00
₩359,000 		100 +1.0% 3,590.00 ₩359,000
2026-10-08 2026-09-23 B Purchase Pyun Dong Jun (변동준)

Other Non-Executive Director (기타비상무이사)

Non-Executive Director Large shareholder
80 +0.0%
3,607.00
₩288,560 		80 +0.0% 3,607.00 ₩288,560
2026-10-07 2026-09-23 B Purchase Seo JeongHwan (서정환)

Director (이사)

Director
315 +3.4%
3,587.00
₩1,129,905 		315 +3.4% 3,587.00 ₩1,129,905

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