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UDM Tech 389680

Company
유디엠텍UDM Tech
Insiders
2
Buys
0
Total Value
₩4.7B ($3.3M)
Avg Return
+38.60%
Last Filing
2026-04-16

UDM Tech (389680) has 0 disclosed insider purchases and 2 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩4.7B ($3.3M) in reported transaction value. The earliest filing StockDrifts holds for UDM Tech is dated 2024-11-20; the most recent is 2026-04-16. 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 +38.60%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

DateTypeSourceInsiderPositionSharesPrice at filingReturnValue
2026-04-16SELL주식병합
전은나
Jeon Eun-na
--8.5M₩549+0.0%₩4.7B ($3.2M)
2026-04-16SELL주식병합
왕지남
Wang Ji-nam
CEO-9.0M₩549+0.0%₩4.9B ($3.4M)
2024-11-21BUY신규상장
왕지남
Wang Ji-nam
CEO11.2M₩1,241-32.3%₩13.9B ($9.7M)
2024-11-21BUY신규상장
전은나
Jeon Eun-na
-10.6M₩1,241-32.3%₩13.1B ($9.1M)
2024-11-20SELLMarket Sell
KTBN 13호 벤처투자조합
KTBN No. 13 Venture Investment Association
--1.4M₩1,368+38.6%₩2.0B ($1.4M)
2024-11-20BUY신규상장
KTBN 13호 벤처투자조합
KTBN No. 13 Venture Investment Association
-4.1M₩1,368-38.6%₩5.6B ($3.9M)
2024-11-20BUY신규상장
KB지식재산투자조합
KB Intellectual Property Investment Association
-4.1M₩1,368-38.6%₩5.6B ($3.9M)
2024-11-20SELLMarket Sell
KB지식재산투자조합
KB Intellectual Property Investment Association
--2.0M₩1,368+38.6%₩2.8B ($1.9M)

Frequently asked questions

Who has been buying UDM Tech stock?
2 distinct insiders have filed 0 disclosed insider purchases in UDM Tech (389680), most recently on 2026-04-16. 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 UDM Tech have?
UDM Tech has 0 buy-side and 2 sell-side disclosures on record, covering ₩4.7B ($3.3M) in total reported value, spanning 2024-11-20 to 2026-04-16.
Where does StockDrifts get UDM Tech 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 UDM Tech. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.