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1 insider bought €107k of shares over the last 90 days, the latest by 정완영, filed 03 Sept 2026.
3S KOREA Co., Ltd.: what insiders have been doing
3S KOREA Co., Ltd. belongs to the Chemicals sector. Filings by its managers are published through DART (FSS). Between 26 October 2025 and 26 October 2026, 3 insiders published 5 filings.
No insider sold shares on the market over the period. Instead, the filings list 4 purchases, made by 2 insiders. The amount is not disclosed for 4 filings. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. On the buying side, the filings list 1 major shareholder and 1 chief executive among the declarants.
Across the 2,650 companies tracked on its exchange, the median is 7 filings; at 5 filings, this issuer sits below that mark. Looking back to 2021, when coverage begins, insiders filed 14 purchases and 1 sale.
The clock since the last published purchase (3 September 2026) now reads 53 days.
In the same sector, recent insider purchases at Titan and Norske Skog ASA also feature in our signals. Source: insider filings from DART (FSS). Past trades are no guide to future returns.
Insider Decl.
25
Thresholds
n/a
Buy Volume
€1M
14 ops. · all time
Sell Volume
€271,779
1 ops. · all time
Who traded when
BuySale한국웨이퍼홀딩스3 buys
김세완1 buy
정완영1 buy
Fundamental score
Ranked 23,567 of 26,320 companies
22.3
score / 100
Value39
Quality6
FCF yld4.0%
Earn yld-8.0%
EV/EBITDA·
ROE·
Gross mgn-1.6%
Net mgn-19%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2026FY ended March 2026 · cache
₩1,290
Analyst consensus
Income statement
Revenue₩28.4B
Gross profit-₩442.3M-2% margin
EBITDA-₩1.7B-6% margin
Net income-₩5.5B-19.3% margin
Balance sheet & cash
Market cap₩68.4B
Total debt₩7.4B
Free Cash Flow₩2.7B
Last declaration on 3 September 2026
Declarations26 total
Other
0DART
150,000 sharesShareKRXDART:20260903000140
Canonical exit: 2 Dec 2026 (T+90)
905,823 sharesKRXDART:20260630000650
Canonical exit: 28 Sept 2026 (T+90)
721,687 sharesShareKRXDART:20260630000738
Canonical exit: 28 Sept 2026 (T+90)
184,136 sharesShareKRXDART:20260623000363
Canonical exit: 21 Sept 2026 (T+90)
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Executives
0DART
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Executives
0DART
77,120 sharesShareKRXDART:20241125000216
Canonical exit: 23 Feb 2025 (T+90)
ShareKRXDART:20241125000209
Canonical exit: 18 Jan 2025 (T+90)
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Executives
0DART
146,186 sharesKRXDART:20240409002049
6,365,399 sharesKRXDART:20231010000304
Canonical exit: 9 Nov 2023 (T+90)
6,365,399 sharesKRXDART:20230710000311
Canonical exit: 5 Sept 2023 (T+90)
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Executives
0DART
ShareKRXDART:20220920000108
Canonical exit: 19 Dec 2022 (T+90)
ShareKRXDART:20220920000107
Canonical exit: 19 Dec 2022 (T+90)
ShareKRXDART:20220920000106
Canonical exit: 19 Dec 2022 (T+90)
ShareKRXDART:20220704000146
Canonical exit: 2 Oct 2022 (T+90)
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Executives
0DART
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Executives
0DART
ShareKRXDART:20220525000316
Canonical exit: 23 Aug 2022 (T+90)
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Executives
0DART
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Executives
0DART
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Executives
0DART
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Executives
0DART
25 of 26 declarations
About 3S KOREA Co., Ltd.
3S is a company operating in the chemical and materials sector. It is listed on the XKRX market.
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