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SDN 099220

Company
SDN
Insiders
1
Buys
7
Total Value
₩497M ($345K)
Avg Return
-7.97%
Last Filing
2026-06-24

SDN (099220) has 7 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩497M ($345K) in reported transaction value. The earliest filing StockDrifts holds for SDN is dated 2024-03-28; the most recent is 2026-06-24. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is -7.97%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-06-24BUYMarket Buy
최기혁
Kihyuk Choi
Internal director69.1K₩950-13.4%₩66M ($46K)
2026-06-23BUYMarket Buy
최기혁
Kihyuk Choi
Internal director100.0K₩955-13.8%₩96M ($66K)
2026-06-22BUYMarket Buy
최기혁
Kihyuk Choi
Internal director60.2K₩1,004-18.0%₩60M ($42K)
2026-06-19BUYMarket Buy
최기혁
Kihyuk Choi
Internal director54.5K₩1,000-17.7%₩54M ($38K)
2026-06-12BUYMarket Buy
최기혁
Kihyuk Choi
Internal director100.0K₩987-0.2%₩99M ($69K)
2026-06-11BUYMarket Buy
최기혁
Kihyuk Choi
Internal director37.8K₩950+3.7%₩36M ($25K)
2026-06-09BUYMarket Buy
최기혁
Kihyuk Choi
Internal director91.3K₩950+3.7%₩87M ($60K)
2025-03-27SELL임원퇴임
박학봉
Park Hak-bong
Internal director-283.5K₩1,043-17.0%₩296M ($205K)
2024-03-28BUY신규선임
박춘용
Park Chun-yong
thanks7.6K₩1,435-15.0%₩11M ($8K)

Frequently asked questions

Who has been buying SDN stock?
1 distinct insiders have filed 7 disclosed insider purchases in SDN (099220), most recently on 2026-06-24. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does SDN have?
SDN has 7 buy-side and 0 sell-side disclosures on record, covering ₩497M ($345K) in total reported value, spanning 2024-03-28 to 2026-06-24.
Where does StockDrifts get SDN insider data?
From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?
Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for SDN. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.