Who has been buying Maeil Dairy Products stock?

9 distinct insiders have filed 11 disclosed insider purchases in Maeil Dairy Products (267980), most recently on 2025-12-16. 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 Maeil Dairy Products have?

Maeil Dairy Products has 11 buy-side and 0 sell-side disclosures on record, covering ₩164M ($114K) in total reported value, spanning 2017-06-05 to 2025-12-16.

Where does StockDrifts get Maeil Dairy Products 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.

Maeil Dairy Products 267980

Company

매일유업Maeil Dairy Products

Insiders

Buys

Total Value

₩164M ($114K)

Avg Return

+10.85%

Last Filing

2025-12-16

Maeil Dairy Products (267980) has 11 disclosed insider purchases and 0 disclosed disposals on record, filed by 9 distinct insiders. Together those filings cover ₩164M ($114K) in reported transaction value. The earliest filing StockDrifts holds for Maeil Dairy Products is dated 2017-06-05; the most recent is 2025-12-16. 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 +10.85%, 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
2025-12-16	BUY	PROGRAM	조상우 Jo Sangwoo	MIC_Director of Food Research Institute	200	₩35,900	+13.1%	₩7M ($5K)
2025-12-16	BUY	PROGRAM	김오영 Ohyoung Kim	Management Innovation Director	273	₩35,900	+13.1%	₩10M ($7K)
2025-12-16	BUY	PROGRAM	장유진 Yujin Jang	FS General Manager	292	₩35,900	+13.1%	₩10M ($7K)
2025-12-16	BUY	PROGRAM	이인기 Inki Lee	CEO	150	₩35,900	+13.1%	₩5M ($4K)
2025-12-15	BUY	PROGRAM	김선희 Seonhee Kim	CEO	2.0K	₩36,050	+12.6%	₩72M ($50K)
2025-12-12	BUY	PROGRAM	안진오 Jin Oh Ahn	CFO	280	₩36,500	+11.2%	₩10M ($7K)
2025-12-12	BUY	PROGRAM	김난희 Nanhee Kim	CHO	200	₩36,500	+11.2%	₩7M ($5K)
2025-12-12	BUY	PROGRAM	김영은 Kim Young-eun	CDO	121	₩36,500	+11.2%	₩4M ($3K)
2025-12-12	BUY	PROGRAM	곽정우 Kwak Jeong-woo	Director of Quality and Safety Division	850	₩36,500	+11.2%	₩31M ($22K)
2025-12-11	BUY	PROGRAM	김영은 Kim Young-eun	CDO	129	₩36,300	+11.8%	₩5M ($3K)
2025-06-30	SELL	임원퇴임	김진기 Lee Min-won	Gyeongsan Factory Manager	-709	₩37,500	-8.3%	₩27M ($18K)
2025-02-21	BUY	PROGRAM	이인기 Inki Lee	CEO	2.0K	₩34,850	+16.5%	₩69M ($48K)
2025-02-21	BUY	PROGRAM	장유진 Yujin Jang	FS General Manager	1.7K	₩34,850	+16.5%	₩60M ($41K)
2025-02-14	BUY	PROGRAM	김선희 Seonhee Kim	CEO (Vice Chairman)	19.7K	₩33,550	+21.0%	₩661M ($459K)
2025-02-14	BUY	PROGRAM	장동운 Jang Dong-woon	FS Sales Division Manager	443	₩33,550	+21.0%	₩15M ($10K)
2025-02-14	BUY	PROGRAM	김오영 Ohyoung Kim	Management Innovation Director	1.5K	₩33,550	+21.0%	₩51M ($35K)
2025-02-14	BUY	PROGRAM	유호석 Yoo Hoseok	ERP/PI TF leader	607	₩33,550	+21.0%	₩20M ($14K)
2025-02-14	BUY	PROGRAM	김난희 Nanhee Kim	CHO	1.5K	₩33,550	+21.0%	₩51M ($35K)
2025-02-14	BUY	PROGRAM	김수현 Soohyun Kim	MIC_Director of Nutrition Research Institute	755	₩33,550	+21.0%	₩25M ($18K)
2025-02-14	BUY	PROGRAM	김진기 Lee Min-won	Gyeongsan Factory Manager	689	₩33,550	+21.0%	₩23M ($16K)
2025-02-14	BUY	PROGRAM	최준영 Junyoung Choi	Planning Manager	620	₩33,550	+21.0%	₩21M ($14K)
2025-02-14	BUY	PROGRAM	권관형 Gwanhyeong Kwon	Minister of Justice	466	₩33,550	+21.0%	₩16M ($11K)
2025-02-14	BUY	PROGRAM	박석준 Seokjun Park	Head of Overseas Business Division	657	₩33,550	+21.0%	₩22M ($15K)
2025-02-14	BUY	PROGRAM	강준모 Junmo Kang	Chief Operations Officer (COO)	591	₩33,550	+21.0%	₩20M ($14K)
2025-02-14	BUY	PROGRAM	김용진 Yongjin Kim	Sales Manager	532	₩33,550	+21.0%	₩18M ($12K)
2025-02-14	BUY	PROGRAM	김주형 Joohyung Kim	Sales Manager	558	₩33,550	+21.0%	₩19M ($13K)
2025-02-14	BUY	PROGRAM	최수진 Sujin Choi	Sales Manager	558	₩33,550	+21.0%	₩19M ($13K)
2024-12-31	SELL	임원퇴임	신근호 Shin Geun-ho	Cost improvement TF leader	-2.1K	₩34,700	-17.0%	₩74M ($51K)
2024-12-31	SELL	임원퇴임	김환석 Hwanseok Kim	CEO	-10.4K	₩34,700	-17.0%	₩363M ($252K)
2024-12-31	SELL	임원퇴임	조성형 Cho Seong-hyung	FS General Representative	-5.8K	₩34,700	-17.0%	₩203M ($141K)
2024-02-20	BUY	PROGRAM	김선희 Seonhee Kim	CEO (Vice Chairman)	19.6K	₩42,350	-4.1%	₩830M ($576K)
2024-02-20	BUY	PROGRAM	조성형 Cho Seong-hyung	FS General Representative	3.0K	₩42,350	-4.1%	₩126M ($88K)
2024-02-20	BUY	PROGRAM	김오영 Ohyoung Kim	Management Innovation Director	822	₩42,350	-4.1%	₩35M ($24K)
2024-02-20	BUY	PROGRAM	장유진 Yujin Jang	FS Head of Division	1.8K	₩42,350	-4.1%	₩76M ($53K)
2024-02-20	BUY	PROGRAM	신근호 Shin Geun-ho	Cost improvement TF leader	2.1K	₩42,350	-4.1%	₩90M ($63K)
2024-02-20	BUY	PROGRAM	김난희 Nanhee Kim	Head of Human Resources Department	20	₩42,350	-4.1%	₩847K ($588)
2024-02-20	BUY	PROGRAM	김환석 Hwanseok Kim	CEO	7.8K	₩42,350	-4.1%	₩331M ($230K)
2024-02-20	BUY	PROGRAM	이인기 Inki Lee	Planning Director	2.0K	₩42,350	-4.1%	₩83M ($58K)
2023-12-21	BUY	PROGRAM	조상우 Jo Sangwoo	MIC_Director of Food Research Institute	29	₩41,600	-2.4%	₩1M ($838)
2023-08-21	BUY	PROGRAM	장동운 Jang Dong-woon	FS Sales Division Manager	20	₩46,300	-12.3%	₩926K ($643)
2022-04-29	BUY	PROGRAM	최수진 Sujin Choi	Sales Manager	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	강준모 Junmo Kang	Chief Operations Officer (COO)	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	김용진 Yongjin Kim	Sales Manager	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	김주형 Joohyung Kim	Sales Manager	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	권관형 Gwanhyeong Kwon	Minister of Justice	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	김수현 Soohyun Kim	MIC_Director of Nutrition Research Institute	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	장동운 Jang Dong-woon	FS Sales Division Manager	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	김진기 Lee Min-won	Gyeongsan Factory Manager	20	₩69,400	-41.5%	₩1M ($964)
2022-04-29	BUY	PROGRAM	최준영 Junyoung Choi	Planning Manager	20	₩69,400	-41.5%	₩1M ($964)
2017-06-05	BUY	PROGRAM	장동운 Jang Dong-woon	FS Sales Division Manager	7	₩85,200	-52.4%	₩596K ($414)

Frequently asked questions

Who has been buying Maeil Dairy Products stock?: 9 distinct insiders have filed 11 disclosed insider purchases in Maeil Dairy Products (267980), most recently on 2025-12-16. 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 Maeil Dairy Products have?: Maeil Dairy Products has 11 buy-side and 0 sell-side disclosures on record, covering ₩164M ($114K) in total reported value, spanning 2017-06-05 to 2025-12-16.
Where does StockDrifts get Maeil Dairy Products 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 Maeil Dairy Products. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.