Who has been buying micro digital stock?

4 distinct insiders have filed 2 disclosed insider purchases in micro digital (305090), most recently on 2026-06-08. 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 micro digital have?

micro digital has 2 buy-side and 15 sell-side disclosures on record, covering ₩722M ($501K) in total reported value, spanning 2022-04-15 to 2026-06-08.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

micro digital 305090

Company

마이크로디지탈micro digital

Insiders

Buys

Total Value

₩722M ($501K)

Avg Return

+29.86%

Last Filing

2026-06-08

micro digital (305090) has 2 disclosed insider purchases and 15 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩722M ($501K) in reported transaction value. The earliest filing StockDrifts holds for micro digital is dated 2022-04-15; the most recent is 2026-06-08. Across these filings the average return since disclosure is +29.86%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2026-06-08	BUY	Market Buy	김경남 Gyeongnam Kim	CEO	13.6K	₩2,565	-1.9%	₩35M ($24K)
2026-06-04	BUY	Market Buy	김경남 Gyeongnam Kim	CEO	21.2K	₩2,725	-7.7%	₩58M ($40K)
2025-03-20	BUY	전환사채의권리행사	김경남 Gyeongnam Kim	CEO	42.1K	₩9,530	-12.6%	₩401M ($279K)
2025-02-28	BUY	전환사채의권리행사	김경남 Gyeongnam Kim	CEO	42.1K	₩10,960	-24.0%	₩461M ($320K)
2025-02-13	SELL	Market Sell	이용국 Lee Yong-guk	Outside Director	-5.0K	₩11,660	+28.6%	₩58M ($40K)
2024-12-13	SELL	Market Sell	김태영 Taeyoung Kim	Managing Director	-4.0K	₩11,940	+30.2%	₩48M ($33K)
2024-12-06	SELL	Market Sell	김태영 Taeyoung Kim	Managing Director	-4.0K	₩11,100	+24.9%	₩44M ($31K)
2024-12-02	SELL	Market Sell	김성대 Seongdae Kim	Managing Director	-1.0K	₩12,200	+31.7%	₩12M ($8K)
2024-12-02	SELL	Market Sell	김성대 Seongdae Kim	Managing Director	-1.0K	₩12,200	+31.7%	₩12M ($8K)
2024-12-02	SELL	Market Sell	김태영 Taeyoung Kim	Managing Director	-11.0K	₩12,200	+31.7%	₩134M ($93K)
2024-11-29	SELL	Market Sell	김태영 Taeyoung Kim	Managing Director	-2.0K	₩12,150	+31.4%	₩24M ($17K)
2024-11-29	SELL	Market Sell	김성대 Seongdae Kim	Managing Director	-1.0K	₩12,150	+31.4%	₩12M ($8K)
2024-11-27	SELL	Market Sell	김성대 Seongdae Kim	Managing Director	-1.0K	₩12,690	+34.4%	₩13M ($9K)
2024-11-27	SELL	Market Sell	김태영 Taeyoung Kim	Managing Director	-2.0K	₩12,690	+34.4%	₩25M ($18K)
2024-11-27	SELL	Market Sell	김성대 Seongdae Kim	Managing Director	-1.0K	₩12,690	+34.4%	₩13M ($9K)
2024-11-26	SELL	Market Sell	김태영 Taeyoung Kim	Managing Director	-5.0K	₩12,870	+35.3%	₩64M ($45K)
2024-11-13	BUY	주식매수선택권	이용국 Lee Yong-guk	Outside Director	24.0K	₩13,340	-37.6%	₩320M ($222K)
2024-09-27	SELL	Market Sell	이용국 Lee Yong-guk	Outside Director	-5.0K	₩15,480	+46.2%	₩77M ($54K)
2024-09-26	SELL	Market Sell	이용국 Lee Yong-guk	Outside Director	-2.0K	₩15,480	+46.2%	₩31M ($22K)
2024-09-25	SELL	Market Sell	이용국 Lee Yong-guk	Outside Director	-4.0K	₩15,070	+44.7%	₩60M ($42K)
2022-04-15	BUY	주식매수선택권	김태영 Taeyoung Kim	Managing Director	18.2K	₩7,130	+16.8%	₩130M ($90K)
2022-04-15	BUY	주식매수선택권	김태영 Taeyoung Kim	Managing Director	19.8K	₩7,130	+16.8%	₩141M ($98K)

Frequently asked questions

Who has been buying micro digital stock?: 4 distinct insiders have filed 2 disclosed insider purchases in micro digital (305090), most recently on 2026-06-08. 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 micro digital have?: micro digital has 2 buy-side and 15 sell-side disclosures on record, covering ₩722M ($501K) in total reported value, spanning 2022-04-15 to 2026-06-08.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.