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Quanta Matrix 317690

Company
퀀타매트릭스Quanta Matrix
Insiders
1
Buys
0
Total Value
₩151M ($105K)
Avg Return
+30.61%
Last Filing
2025-03-07

Quanta Matrix (317690) has 0 disclosed insider purchases and 1 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩151M ($105K) in reported transaction value. The earliest filing StockDrifts holds for Quanta Matrix is dated 2025-02-05; the most recent is 2025-03-07. 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 +30.61%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2025-03-07BUY제3자배정유상증자
에즈라채리터블트러스트
Ezra Charitable Trust
-515.2K₩4,470-5.9%₩2.3B ($1.6M)
2025-03-01BUY제3자배정유상증자
에즈라채리터블트러스트
Ezra Charitable Trust
-400.0K₩4,590-8.4%₩1.8B ($1.3M)
2025-02-25SELL시간외매매
에즈라채리터블트러스트
Ezra Charitable Trust
--490.0K₩5,050+16.7%₩2.5B ($1.7M)
2025-02-25BUY제3자배정유상증자
에즈라채리터블트러스트
Ezra Charitable Trust
-625.0K₩5,050-16.7%₩3.2B ($2.2M)
2025-02-20SELL시간외매매
에즈라채리터블트러스트
Ezra Charitable Trust
--400.0K₩5,240+19.8%₩2.1B ($1.5M)
2025-02-06SELL시간외매매
에즈라채리터블트러스트
Ezra Charitable Trust
--600.0K₩6,120+31.3%₩3.7B ($2.5M)
2025-02-05SELLMarket Sell
에즈라채리터블트러스트
Ezra Charitable Trust
--25.0K₩6,060+30.6%₩151M ($105K)

Frequently asked questions

Who has been buying Quanta Matrix stock?
1 distinct insiders have filed 0 disclosed insider purchases in Quanta Matrix (317690), most recently on 2025-03-07. 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 Quanta Matrix have?
Quanta Matrix has 0 buy-side and 1 sell-side disclosures on record, covering ₩151M ($105K) in total reported value, spanning 2025-02-05 to 2025-03-07.
Where does StockDrifts get Quanta Matrix 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 Quanta Matrix. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.