Who has been buying Segyeong Hi-Tech stock?

6 distinct insiders have filed 15 disclosed insider purchases in Segyeong Hi-Tech (148150), most recently on 2026-06-30. 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 Segyeong Hi-Tech have?

Segyeong Hi-Tech has 15 buy-side and 6 sell-side disclosures on record, covering ₩1.2B ($839K) in total reported value, spanning 2024-02-16 to 2026-06-30.

Where does StockDrifts get Segyeong Hi-Tech 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.

Segyeong Hi-Tech 148150

Company

세경하이테크Segyeong Hi-Tech

Insiders

Buys

Total Value

₩1.2B ($839K)

Avg Return

+12.13%

Last Filing

2026-06-30

Segyeong Hi-Tech (148150) has 15 disclosed insider purchases and 6 disclosed disposals on record, filed by 6 distinct insiders. Together those filings cover ₩1.2B ($839K) in reported transaction value. The earliest filing StockDrifts holds for Segyeong Hi-Tech is dated 2024-02-16; the most recent is 2026-06-30. 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 +12.13%, 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
2026-06-30	BUY	행사가액조정	에스지에이치홀딩스 SGH Holdings	-	3.9M	₩3,105	+0.8%	₩12.2B ($8.4M)
2026-06-12	BUY	Market Buy	이은영 Eunyoung Lee	Managing Director	500	₩3,595	-0.6%	₩2M ($1K)
2026-06-11	BUY	Market Buy	이은영 Eunyoung Lee	Managing Director	478	₩3,515	+1.7%	₩2M ($1K)
2026-06-10	BUY	Market Buy	이은영 Eunyoung Lee	Managing Director	10.9K	₩3,460	+3.3%	₩38M ($26K)
2026-06-09	BUY	Market Buy	이은영 Eunyoung Lee	Managing Director	4.1K	₩3,490	+2.4%	₩14M ($10K)
2026-02-10	BUY	Market Buy	이기승 Lee Ki-seung	CEO	3.2K	₩5,140	-2.1%	₩16M ($11K)
2026-02-09	BUY	Market Buy	이기승 Lee Ki-seung	CEO	5.7K	₩5,130	-1.9%	₩29M ($20K)
2026-01-26	BUY	수증	곽민우 Minwoo Kwak	Managing Director	3.2K	₩4,925	-1.8%	₩16M ($11K)
2026-01-23	BUY	Market Buy	박지훈 Jihoon Park	Managing Director	20	₩4,765	+5.6%	₩95K ($66)
2026-01-19	BUY	Market Buy	박지훈 Jihoon Park	Managing Director	20	₩4,540	+10.8%	₩91K ($63)
2026-01-15	BUY	Market Buy	박지훈 Jihoon Park	Managing Director	10	₩4,745	+6.0%	₩47K ($33)
2026-01-01	BUY	신규선임	박지훈 Jihoon Park	Managing Director	200	₩5,230	-3.8%	₩1M ($726)
2025-12-18	BUY	Market Buy	이기승 Lee Ki-seung	CEO	4.2K	₩5,110	-1.6%	₩21M ($15K)
2025-12-15	BUY	Market Buy	이기승 Lee Ki-seung	CEO	5.0K	₩5,250	-4.2%	₩26M ($18K)
2025-12-04	BUY	Market Buy	이기승 Lee Ki-seung	CEO	1.3K	₩5,080	-1.0%	₩7M ($5K)
2025-12-03	BUY	Market Buy	이기승 Lee Ki-seung	CEO	4.2K	₩5,180	-2.9%	₩22M ($15K)
2025-12-02	BUY	Market Buy	이기승 Lee Ki-seung	CEO	2.2K	₩5,130	-1.9%	₩11M ($8K)
2025-12-01	BUY	Market Buy	이기승 Lee Ki-seung	CEO	2.1K	₩5,040	-0.2%	₩11M ($7K)
2025-09-15	SELL	Market Sell	정인수 Insu Jeong	Managing Director	-10.0K	₩6,190	+18.7%	₩62M ($43K)
2024-07-11	SELL	Market Sell	정인수 Insu Jeong	Managing Director	-5.0K	₩10,740	+53.2%	₩54M ($37K)
2024-07-08	SELL	Market Sell	정인수 Insu Jeong	Managing Director	-5.0K	₩10,030	+49.9%	₩50M ($35K)
2024-04-24	BUY	주식매수선택권	이동호 Lee Dong-ho	Managing Director	50.0K	₩9,760	-48.5%	₩488M ($339K)
2024-04-22	SELL	Market Sell	ISHIKO TAKARA	Managing Director	-26.0K	₩9,500	+47.0%	₩247M ($172K)
2024-02-19	SELL	Market Sell	전성욱 Seongwook Jeon	president	-36.4K	₩7,730	+34.9%	₩281M ($195K)
2024-02-16	SELL	Market Sell	전성욱 Seongwook Jeon	president	-39.2K	₩8,050	+37.5%	₩315M ($219K)

Frequently asked questions

Who has been buying Segyeong Hi-Tech stock?: 6 distinct insiders have filed 15 disclosed insider purchases in Segyeong Hi-Tech (148150), most recently on 2026-06-30. 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 Segyeong Hi-Tech have?: Segyeong Hi-Tech has 15 buy-side and 6 sell-side disclosures on record, covering ₩1.2B ($839K) in total reported value, spanning 2024-02-16 to 2026-06-30.
Where does StockDrifts get Segyeong Hi-Tech 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 Segyeong Hi-Tech. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.