Who has been buying SFA stock?

13 distinct insiders have filed 22 disclosed insider purchases in SFA (056190), most recently on 2026-02-20. 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 SFA have?

SFA has 22 buy-side and 1 sell-side disclosures on record, covering ₩385M ($267K) in total reported value, spanning 2021-02-25 to 2026-02-20.

Where does StockDrifts get SFA 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.

SFA 056190

Company

에스에프에이SFA

Insiders

Buys

Total Value

₩385M ($267K)

Avg Return

+34.50%

Last Filing

2026-02-20

SFA (056190) has 22 disclosed insider purchases and 1 disclosed disposals on record, filed by 13 distinct insiders. Together those filings cover ₩385M ($267K) in reported transaction value. The earliest filing StockDrifts holds for SFA is dated 2021-02-25; the most recent is 2026-02-20. 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 +34.50%, 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
2026-08-13	BUY	Market Buy	김영태 Youngtae Kim	Managing Director	450	₩24,300	+5.1%	₩10M ($7K)
2026-08-03	BUY	Market Buy	강석희 Seokhee Kang	Managing Director	264	₩19,940	+6.6%	₩5M ($3K)
2026-07-31	BUY	Market Buy	허준 Heo Jun	vice president	7.0K	₩20,000	+6.3%	₩131M ($91K)
2026-02-20	BUY	Market Buy	김상경 Kim Sang-kyung	CEO	1.4K	₩31,600	+4.0%	₩46M ($32K)
2026-01-13	BUY	Market Buy	허준 Heo Jun	vice president	2.2K	₩23,250	+41.3%	₩50M ($35K)
2025-11-26	BUY	Market Buy	김상경 Kim Sang-kyung	Managing Director	950	₩21,550	+52.4%	₩20M ($14K)
2025-11-25	BUY	Market Buy	김상경 Kim Sang-kyung	Managing Director	907	₩21,300	+54.2%	₩19M ($13K)
2025-11-24	BUY	Market Buy	김상경 Kim Sang-kyung	Managing Director	1.7K	₩20,250	+62.2%	₩34M ($24K)
2024-10-14	BUY	Market Buy	최교원 Choi Kyo-won	Chairman	300	₩22,750	+44.4%	₩7M ($5K)
2024-09-06	BUY	Market Buy	김종구 Kim Jong-gu	Managing Director	500	₩23,500	+39.8%	₩12M ($8K)
2024-09-02	BUY	Market Buy	강명길 Kang Myeong-gil	Chairman	300	₩24,750	+32.7%	₩7M ($5K)
2024-09-02	BUY	Market Buy	최교원 Choi Kyo-won	Chairman	200	₩24,750	+32.7%	₩5M ($3K)
2024-09-02	BUY	Market Buy	이철성 Cheolseong Lee	Managing Director	457	₩24,750	+32.7%	₩11M ($8K)
2024-08-30	BUY	Market Buy	김영민 Youngmin Kim	CEO	795	₩24,950	+31.7%	₩20M ($14K)
2024-08-28	BUY	Market Buy	강석희 Seokhee Kang	Managing Director	900	₩25,000	+31.4%	₩23M ($16K)
2024-08-26	BUY	Market Buy	최성원 Seongwon Choi	Chairman	200	₩24,850	+32.2%	₩5M ($3K)
2024-08-23	BUY	Market Buy	지근희 Ji Geun-hee	Chairman	231	₩25,400	+29.3%	₩6M ($4K)
2024-08-21	BUY	Market Buy	원구일 Won Gu-il	Managing Director	450	₩25,200	+30.4%	₩11M ($8K)
2024-08-01	BUY	Market Buy	허준 Heo Jun	Managing Director	400	₩25,350	+29.6%	₩10M ($7K)
2024-07-30	BUY	Market Buy	김진기 Lee Min-won	Chairman	600	₩24,850	+32.2%	₩15M ($10K)
2024-07-29	BUY	Market Buy	김상경 Kim Sang-kyung	Managing Director	400	₩25,100	+30.9%	₩10M ($7K)
2024-07-26	BUY	Market Buy	최교원 Choi Kyo-won	Chairman	157	₩25,000	+31.4%	₩4M ($3K)
2024-07-25	BUY	Market Buy	최용해 Yonghae Choi	Chairman	183	₩24,800	+32.5%	₩5M ($3K)
2024-04-18	BUY	Market Buy	허준 Heo Jun	Managing Director	1.3K	₩25,350	+29.6%	₩33M ($23K)
2024-03-04	BUY	Market Buy	허준 Heo Jun	Managing Director	890	₩25,100	+30.9%	₩22M ($16K)
2021-02-25	SELL	Market Sell	김종구 Kim Jong-gu	Managing Director	-213	₩43,800	+25.0%	₩9M ($6K)

Frequently asked questions

Who has been buying SFA stock?: 13 distinct insiders have filed 22 disclosed insider purchases in SFA (056190), most recently on 2026-02-20. 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 SFA have?: SFA has 22 buy-side and 1 sell-side disclosures on record, covering ₩385M ($267K) in total reported value, spanning 2021-02-25 to 2026-02-20.
Where does StockDrifts get SFA 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 SFA. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.