Who has been buying Studio Mir stock?

4 distinct insiders have filed 2 disclosed insider purchases in Studio Mir (408900), most recently on 2026-01-28. 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 Studio Mir have?

Studio Mir has 2 buy-side and 8 sell-side disclosures on record, covering ₩1.6B ($1.1M) in total reported value, spanning 2024-04-08 to 2026-01-28.

Where does StockDrifts get Studio Mir 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.

Studio Mir 408900

Company

스튜디오미르Studio Mir

Insiders

Buys

Total Value

₩1.6B ($1.1M)

Avg Return

+23.14%

Last Filing

2026-01-28

Studio Mir (408900) has 2 disclosed insider purchases and 8 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩1.6B ($1.1M) in reported transaction value. The earliest filing StockDrifts holds for Studio Mir is dated 2024-04-08; the most recent is 2026-01-28. 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 +23.14%, 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
2026-01-28	BUY	PROGRAM	박형근 Park Hyeong-geun	moving	10.0K	₩2,945	-13.2%	₩29M ($20K)
2026-01-28	BUY	PROGRAM	한광일 Han Gwang-il	moving	4.0K	₩2,945	-13.2%	₩12M ($8K)
2026-01-28	BUY	PROGRAM	한청일 Han Cheong-il	moving	4.0K	₩2,945	-13.2%	₩12M ($8K)
2026-01-28	BUY	PROGRAM	이승욱 Seungwook Lee	vice president	20.0K	₩2,945	-13.2%	₩59M ($41K)
2026-01-28	BUY	PROGRAM	한영자 Youngja Han	moving	4.0K	₩2,945	-13.2%	₩12M ($8K)
2026-01-28	BUY	PROGRAM	이환 Lee Hwan	moving	4.0K	₩2,945	-13.2%	₩12M ($8K)
2025-12-12	BUY	자사주상여금	이승욱 Seungwook Lee	vice president	3.3K	₩3,235	-21.0%	₩11M ($7K)
2025-12-12	BUY	자사주상여금	한영자 Youngja Han	moving	3.3K	₩3,235	-21.0%	₩11M ($7K)
2025-11-07	BUY	자사주상여금	한광일 Han Gwang-il	moving	2.6K	₩3,550	-28.0%	₩9M ($7K)
2025-11-07	BUY	자사주상여금	한청일 Han Cheong-il	moving	2.5K	₩3,550	-28.0%	₩9M ($6K)
2025-09-22	SELL	증여	유재명 Jaemyung Yoo	CEO	-180.0K	₩4,425	+42.3%	₩797M ($553K)
2025-08-22	SELL	Market Sell	한광일 Han Gwang-il	moving	-40.0K	₩5,130	+50.2%	₩205M ($143K)
2025-08-19	SELL	Market Sell	한광일 Han Gwang-il	moving	-10.0K	₩4,955	+48.4%	₩50M ($34K)
2025-07-21	SELL	Market Sell	한광일 Han Gwang-il	moving	-49.0K	₩4,570	+44.1%	₩224M ($156K)
2025-06-24	SELL	Market Sell	이환 Lee Hwan	moving	-87.3K	₩4,100	+37.7%	₩358M ($249K)
2025-05-30	SELL	Market Sell	한광일 Han Gwang-il	moving	-90.0K	₩3,160	+19.1%	₩284M ($198K)
2025-02-25	SELL	Market Sell	이환 Lee Hwan	moving	-53.5K	₩2,950	+13.4%	₩158M ($110K)
2024-09-26	BUY	Market Buy	유재명 Jaemyung Yoo	CEO	80.0K	₩3,310	-22.8%	₩265M ($184K)
2024-05-27	SELL	Market Sell	한영자 Youngja Han	moving	-1.3K	₩4,350	+41.3%	₩6M ($4K)
2024-05-24	SELL	Market Sell	이환 Lee Hwan	moving	-7.0K	₩4,465	+42.8%	₩31M ($22K)
2024-05-24	BUY	Market Buy	이환 Lee Hwan	moving	516	₩4,465	-42.8%	₩2M ($2K)
2024-04-29	BUY	PROGRAM	이환 Lee Hwan	moving	147.3K	₩5,460	-53.2%	₩804M ($559K)
2024-04-29	BUY	PROGRAM	박형근 Park Hyeong-geun	moving	110.7K	₩5,460	-53.2%	₩604M ($420K)
2024-04-29	BUY	PROGRAM	한광일 Han Gwang-il	moving	39.6K	₩5,460	-53.2%	₩216M ($150K)
2024-04-29	BUY	PROGRAM	이승욱 Seungwook Lee	vice president	116.7K	₩5,460	-53.2%	₩637M ($443K)
2024-04-29	BUY	PROGRAM	한청일 Han Cheong-il	moving	102.6K	₩5,460	-53.2%	₩560M ($389K)
2024-04-08	BUY	PROGRAM	한광일 Han Gwang-il	moving	157.5K	₩10,110	-74.7%	₩1.6B ($1.1M)
2024-04-08	BUY	PROGRAM	이승욱 Seungwook Lee	vice president	210.0K	₩10,110	-74.7%	₩2.1B ($1.5M)
2024-04-08	BUY	PROGRAM	유재명 Jaemyung Yoo	CEO	17.2M	₩10,110	-74.7%	₩173.6B ($120.6M)
2024-04-08	BUY	PROGRAM	한영자 Youngja Han	moving	157.5K	₩10,110	-74.7%	₩1.6B ($1.1M)

Frequently asked questions

Who has been buying Studio Mir stock?: 4 distinct insiders have filed 2 disclosed insider purchases in Studio Mir (408900), most recently on 2026-01-28. 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 Studio Mir have?: Studio Mir has 2 buy-side and 8 sell-side disclosures on record, covering ₩1.6B ($1.1M) in total reported value, spanning 2024-04-08 to 2026-01-28.
Where does StockDrifts get Studio Mir 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 Studio Mir. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.