Who has been buying booster stock?

2 distinct insiders have filed 2 disclosed insider purchases in booster (008470), most recently on 2026-06-19. 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 booster have?

booster has 2 buy-side and 0 sell-side disclosures on record, covering ₩10M ($7K) in total reported value, spanning 2024-03-29 to 2026-06-19.

Where does StockDrifts get booster 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.

booster 008470

Company

부스타booster

Insiders

Buys

Total Value

₩10M ($7K)

Avg Return

-9.43%

Last Filing

2026-06-19

booster (008470) has 2 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩10M ($7K) in reported transaction value. The earliest filing StockDrifts holds for booster is dated 2024-03-29; the most recent is 2026-06-19. 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 -9.43%, 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
2026-06-19	BUY	PROGRAM	박성식 Seongsik Park	Managing Director	17.8K	₩3,085	-2.9%	₩55M ($38K)
2026-06-19	BUY	PROGRAM	이진백 Jinbaek Lee	Managing Director	25.8K	₩3,085	-2.9%	₩80M ($55K)
2026-06-19	BUY	PROGRAM	박철호 Park Cheol-ho	president	36.5K	₩3,085	-2.9%	₩113M ($78K)
2026-06-19	BUY	PROGRAM	김성훈 Seonghun Kim	Managing Director	17.2K	₩3,085	-2.9%	₩53M ($37K)
2026-06-19	BUY	PROGRAM	김진영 Jinyoung Kim	Managing Director	19.0K	₩3,085	-2.9%	₩59M ($41K)
2026-06-19	BUY	PROGRAM	유덕기 Yu Deok-gi	Managing Director	17.9K	₩3,085	-2.9%	₩55M ($38K)
2026-06-01	BUY	Market Buy	유덕기 Yu Deok-gi	Managing Director	1.5K	₩3,340	-2.5%	₩5M ($3K)
2026-02-13	BUY	PROGRAM	손달운 Handsome	Managing Director	751	₩3,795	-3.3%	₩3M ($2K)
2026-02-13	BUY	PROGRAM	유덕기 Yu Deok-gi	Managing Director	1.8K	₩3,795	-3.3%	₩7M ($5K)
2026-02-13	BUY	PROGRAM	홍석호 Hong Seok-ho	moving	676	₩3,795	-3.3%	₩3M ($2K)
2026-02-13	BUY	PROGRAM	김향겸 Kim Hyang-gyeom	moving	877	₩3,795	-3.3%	₩3M ($2K)
2026-02-13	BUY	PROGRAM	박태완 Taewan Park	moving	977	₩3,795	-3.3%	₩4M ($3K)
2026-02-13	BUY	PROGRAM	이기석 Lee Ki-seok	moving	927	₩3,795	-3.3%	₩4M ($2K)
2026-02-13	BUY	PROGRAM	이승철 Seungcheol Lee	moving	877	₩3,795	-3.3%	₩3M ($2K)
2026-02-13	BUY	PROGRAM	임석 Lim Seok	moving	952	₩3,795	-3.3%	₩4M ($3K)
2026-02-13	BUY	PROGRAM	박철호 Park Cheol-ho	president	4.4K	₩3,795	-3.3%	₩17M ($12K)
2026-02-13	BUY	PROGRAM	고동완 Dongwan Go	Managing Director	1.5K	₩3,795	-3.3%	₩6M ($4K)
2026-02-13	BUY	PROGRAM	최용일 Choi Yong-il	Managing Director	1.1K	₩3,795	-3.3%	₩4M ($3K)
2026-02-13	BUY	PROGRAM	이상웅 Sangwoong Lee	Managing Director	1.1K	₩3,795	-3.3%	₩4M ($3K)
2026-02-13	BUY	PROGRAM	이진백 Jinbaek Lee	Managing Director	2.5K	₩3,795	-3.3%	₩9M ($7K)
2026-02-13	BUY	PROGRAM	김진영 Jinyoung Kim	Managing Director	1.4K	₩3,795	-3.3%	₩5M ($4K)
2026-02-13	BUY	PROGRAM	박성식 Seongsik Park	Managing Director	1.4K	₩3,795	-3.3%	₩5M ($4K)
2026-02-13	BUY	PROGRAM	김성훈 Seonghun Kim	Managing Director	1.5K	₩3,795	-3.3%	₩6M ($4K)
2026-02-13	BUY	PROGRAM	백승룡 Baek Seung-ryong	moving	1.0K	₩3,795	-3.3%	₩4M ($3K)
2025-01-01	BUY	신규선임	김향겸 Kim Hyang-gyeom	moving	1.0K	₩3,780	-2.9%	₩4M ($3K)
2024-03-29	BUY	Market Buy	박철호 Park Cheol-ho	president	1.2K	₩4,385	-16.3%	₩5M ($4K)

Frequently asked questions

Who has been buying booster stock?: 2 distinct insiders have filed 2 disclosed insider purchases in booster (008470), most recently on 2026-06-19. 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 booster have?: booster has 2 buy-side and 0 sell-side disclosures on record, covering ₩10M ($7K) in total reported value, spanning 2024-03-29 to 2026-06-19.
Where does StockDrifts get booster 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 booster. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.