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Macrogen 038290

Company
마크로젠Macrogen
Insiders
2
Buys
4
Total Value
₩55M ($38K)
Avg Return
+4.27%
Last Filing
2025-12-31

Macrogen (038290) has 4 disclosed insider purchases and 1 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩55M ($38K) in reported transaction value. The earliest filing StockDrifts holds for Macrogen is dated 2023-08-30; the most recent is 2025-12-31. 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 +4.27%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2025-12-31SELL임원퇴임
주창남
Changnam Joo
vice president-10.0K₩17,220-7.4%₩172M ($120K)
2025-04-04BUYMarket Buy
김창훈
Kim Chang-hoon
CEO1.1K₩15,670+18.1%₩17M ($12K)
2025-01-31SELL임원퇴임
김종윤
Kim Jong-yoon
vice president-2.2K₩16,320-13.4%₩36M ($25K)
2025-01-17BUY신규보고
심성섭
Seongseop Shim
Managing Director95₩16,970+9.0%₩2M ($1K)
2025-01-17BUY신규보고
홍석주
Hong Seok-ju
Managing Director20₩16,970+9.0%₩339K ($236)
2025-01-14BUY신규보고
윤세웅
Sewoong Yoon
president800₩16,700+10.8%₩13M ($9K)
2024-12-31SELL임원퇴임
황상준
Sangjun Hwang
torture-1.5K₩16,350-13.2%₩25M ($17K)
2024-12-26BUY장외매수
서정선
Seo Jeong-seon
Chairman862.3K₩16,480+12.3%₩14.2B ($9.9M)
2024-08-08BUYMarket Buy
김창훈
Kim Chang-hoon
CEO1.7K₩19,230-3.8%₩32M ($22K)
2023-11-23SELLMarket Sell
황상준
Sangjun Hwang
torture-230₩21,700+14.8%₩5M ($3K)
2023-09-01BUYMarket Buy
황상준
Sangjun Hwang
torture2₩19,080-3.0%₩38K ($27)
2023-08-30BUYMarket Buy
황상준
Sangjun Hwang
torture34₩19,400-4.6%₩660K ($458)

Frequently asked questions

Who has been buying Macrogen stock?
2 distinct insiders have filed 4 disclosed insider purchases in Macrogen (038290), most recently on 2025-12-31. 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 Macrogen have?
Macrogen has 4 buy-side and 1 sell-side disclosures on record, covering ₩55M ($38K) in total reported value, spanning 2023-08-30 to 2025-12-31.
Where does StockDrifts get Macrogen 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 Macrogen. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.