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QRT 405100

Company
큐알티QRT
Insiders
4
Buys
4
Total Value
₩49.7B ($34.5M)
Avg Return
+28.78%
Last Filing
2026-07-09

QRT (405100) has 4 disclosed insider purchases and 7 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩49.7B ($34.5M) in reported transaction value. The earliest filing StockDrifts holds for QRT is dated 2024-02-27; the most recent is 2026-07-09. 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 +28.78%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-07-09BUYMarket Buy
이규복
Gyubok Lee
CEO1.0K₩10,290+4.0%₩11M ($8K)
2026-06-11BUYMarket Buy
이규복
Gyubok Lee
CEO500₩15,140-4.2%₩8M ($5K)
2026-06-11BUYMarket Buy
이규복
Gyubok Lee
CEO500₩15,140-4.2%₩8M ($5K)
2026-05-26BUYMarket Buy
이규복
Gyubok Lee
CEO240₩19,760-26.6%₩5M ($3K)
2026-03-26BUY신규선임
이규복
Gyubok Lee
CEO760₩17,480-4.0%₩13M ($9K)
2025-05-19BUY수증
김홍섭
Hongseop Kim
Managing Director (Assistant)250.0K₩12,750+42.4%₩3.2B ($2.2M)
2025-05-19SELL증여
김영부
Youngbu Kim
CEO-250.0K₩12,750-42.4%₩3.2B ($2.2M)
2024-03-11SELLMarket Sell
노재영
Noh Jae-young
implementation-50₩34,350+47.1%₩2M ($1K)
2024-03-11SELLMarket Sell
노재영
Noh Jae-young
implementation-74₩34,350+47.1%₩3M ($2K)
2024-03-11SELLMarket Sell
노재영
Noh Jae-young
implementation-50₩34,350+47.1%₩2M ($1K)
2024-03-07SELLMarket Sell
이윤근
Yungeun Lee
Managing Director-1.0K₩36,850+50.7%₩37M ($26K)
2024-02-29SELLMarket Sell
디에스청담반도체1호신기술사업투자조합
DS Cheongdam Semiconductor No. 1 New Technology Business Investment Association
--705.0K₩38,200+52.5%₩26.9B ($18.7M)
2024-02-28SELLMarket Sell
디에스청담반도체1호신기술사업투자조합
DS Cheongdam Semiconductor No. 1 New Technology Business Investment Association
--520.9K₩37,500+51.6%₩19.5B ($13.6M)
2024-02-27SELLMarket Sell
디에스청담반도체1호신기술사업투자조합
DS Cheongdam Semiconductor No. 1 New Technology Business Investment Association
--85.1K₩37,300+51.3%₩3.2B ($2.2M)

Frequently asked questions

Who has been buying QRT stock?
4 distinct insiders have filed 4 disclosed insider purchases in QRT (405100), most recently on 2026-07-09. 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 QRT have?
QRT has 4 buy-side and 7 sell-side disclosures on record, covering ₩49.7B ($34.5M) in total reported value, spanning 2024-02-27 to 2026-07-09.
Where does StockDrifts get QRT 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 QRT. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.