Who has been buying Seongchang Autotech stock?

3 distinct insiders have filed 12 disclosed insider purchases in Seongchang Autotech (080470), most recently on 2026-07-14. 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 Seongchang Autotech have?

Seongchang Autotech has 12 buy-side and 0 sell-side disclosures on record, covering ₩72M ($50K) in total reported value, spanning 2024-02-22 to 2026-07-14.

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.

Seongchang Autotech 080470

Company

성창오토텍Seongchang Autotech

Insiders

Buys

Total Value

₩72M ($50K)

Avg Return

-0.59%

Last Filing

2026-07-14

Seongchang Autotech (080470) has 12 disclosed insider purchases and 0 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩72M ($50K) in reported transaction value. The earliest filing StockDrifts holds for Seongchang Autotech is dated 2024-02-22; the most recent is 2026-07-14. Across these filings the average return since disclosure is -0.59%, 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
2026-07-30	BUY	Market Buy	우태재 Taejae Woo	Managing Director	1.0K	₩2,620	+2.7%	₩3M ($2K)
2026-07-14	BUY	Market Buy	이병진 Byungjin Lee	vice president	1.0K	₩2,900	+1.9%	₩3M ($2K)
2026-07-14	BUY	Market Buy	이병진 Byungjin Lee	vice president	1.0K	₩2,900	+1.9%	₩3M ($2K)
2026-07-10	BUY	Market Buy	이병진 Byungjin Lee	vice president	2.5K	₩3,080	-4.1%	₩8M ($5K)
2026-07-10	BUY	Market Buy	이병진 Byungjin Lee	vice president	500	₩3,080	-4.1%	₩2M ($1K)
2026-07-06	BUY	Market Buy	우태재 Taejae Woo	Managing Director	500	₩3,045	-1.5%	₩2M ($1K)
2026-07-03	BUY	Market Buy	우태재 Taejae Woo	Managing Director	298	₩3,060	-2.0%	₩912K ($633)
2026-07-03	BUY	Market Buy	우태재 Taejae Woo	Managing Director	1.9K	₩3,060	-2.0%	₩6M ($4K)
2026-07-03	BUY	Market Buy	우태재 Taejae Woo	Managing Director	113	₩3,060	-2.0%	₩346K ($240)
2026-07-02	BUY	Market Buy	우태재 Taejae Woo	Managing Director	110	₩2,870	+4.5%	₩316K ($219)
2026-07-02	BUY	Market Buy	우태재 Taejae Woo	Managing Director	200	₩2,870	+4.5%	₩574K ($399)
2026-01-29	SELL	시간외매매	고우종 Go Woojong	Chairman	-339.0K	₩4,325	-7.6%	₩1.5B ($1.0M)
2024-06-04	SELL	시간외매매	고우종 Go Woojong	Chairman	-154.7K	₩4,540	-2.5%	₩702M ($488K)
2024-03-07	BUY	Market Buy	고산 alpine	-	5.0K	₩4,565	+2.0%	₩23M ($16K)
2024-02-22	BUY	Market Buy	고산 alpine	-	5.0K	₩4,975	-6.4%	₩25M ($17K)

Frequently asked questions

Who has been buying Seongchang Autotech stock?: 3 distinct insiders have filed 12 disclosed insider purchases in Seongchang Autotech (080470), most recently on 2026-07-14. 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 Seongchang Autotech have?: Seongchang Autotech has 12 buy-side and 0 sell-side disclosures on record, covering ₩72M ($50K) in total reported value, spanning 2024-02-22 to 2026-07-14.
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.