Who has been buying Jusung Engineering stock?

3 distinct insiders have filed 18 disclosed insider purchases in Jusung Engineering (036930), most recently on 2026-03-09. 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 Jusung Engineering have?

Jusung Engineering has 18 buy-side and 0 sell-side disclosures on record, covering ₩5.7B ($4.0M) in total reported value, spanning 2021-05-03 to 2026-03-09.

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.

Jusung Engineering 036930

Company

주성엔지니어링Jusung Engineering

Insiders

Buys

Total Value

₩5.7B ($4.0M)

Avg Return

+101.43%

Last Filing

2026-03-09

Jusung Engineering (036930) has 18 disclosed insider purchases and 0 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩5.7B ($4.0M) in reported transaction value. The earliest filing StockDrifts holds for Jusung Engineering is dated 2021-05-03; the most recent is 2026-03-09. Across these filings the average return since disclosure is +101.43%, 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
2026-03-09	BUY	Market Buy	루미에스트라 Lumiestra	-	62.3K	-	-	-
2026-03-09	BUY	Market Buy	루미에스트라 Lumiestra	-	62.7K	-	-	-
2026-03-06	BUY	Market Buy	루미에스트라 Lumiestra	-	15.0K	-	-	-
2026-03-06	BUY	Market Buy	루미에스트라 Lumiestra	-	15.1K	-	-	-
2026-03-04	BUY	Market Buy	루미에스트라 Lumiestra	-	68.2K	-	-	-
2026-03-04	BUY	Market Buy	루미에스트라 Lumiestra	-	67.0K	-	-	-
2026-01-27	BUY	Market Buy	루미에스트라 Lumiestra	-	8.3K	-	-	-
2026-01-26	BUY	Market Buy	루미에스트라 Lumiestra	-	55.2K	-	-	-
2025-12-30	BUY	Market Buy	루미에스트라 Lumiestra	-	73.8K	-	-	-
2025-12-10	BUY	Market Buy	황철주 Hwang Cheol-ju	CEO/Chairman	14.5K	₩28,750	+84.3%	₩417M ($289K)
2025-11-07	BUY	Market Buy	황철주 Hwang Cheol-ju	CEO/Chairman	16.4K	₩29,250	+81.2%	₩480M ($333K)
2025-08-04	BUY	Market Buy	황은석 Hwang Eun-seok	CEO/President	2.0K	₩27,050	+95.9%	₩54M ($38K)
2025-07-28	BUY	Market Buy	황은석 Hwang Eun-seok	CEO/President	1.7K	₩29,750	+78.2%	₩51M ($35K)
2025-06-25	BUY	Market Buy	황철주 Hwang Cheol-ju	CEO/Chairman	19.9K	₩32,100	+65.1%	₩638M ($443K)
2025-05-08	BUY	Market Buy	황은석 Hwang Eun-seok	CEO/President	600	₩33,900	+56.3%	₩20M ($14K)
2025-05-08	BUY	Market Buy	황철주 Hwang Cheol-ju	CEO/Chairman	76.8K	₩33,900	+56.3%	₩2.6B ($1.8M)
2025-04-28	BUY	신규보고	황은석 Hwang Eun-seok	CEO/President	1.0M	₩34,900	+51.9%	₩36.6B ($25.4M)
2024-12-02	BUY	신규선임	이우경 Lee Woo-kyung	vice president	1.3K	₩26,000	+103.8%	₩34M ($23K)
2024-11-14	BUY	Market Buy	황철주 Hwang Cheol-ju	CEO/Chairman	41.4K	₩27,550	+92.4%	₩1.1B ($792K)
2021-05-03	BUY	Market Buy	황철주 Hwang Cheol-ju	CEO/Chairman	21.8K	₩13,150	+303.0%	₩287M ($199K)

Frequently asked questions

Who has been buying Jusung Engineering stock?: 3 distinct insiders have filed 18 disclosed insider purchases in Jusung Engineering (036930), most recently on 2026-03-09. 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 Jusung Engineering have?: Jusung Engineering has 18 buy-side and 0 sell-side disclosures on record, covering ₩5.7B ($4.0M) in total reported value, spanning 2021-05-03 to 2026-03-09.
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.