Who has been buying Hi-vision system stock?

3 distinct insiders have filed 10 disclosed insider purchases in Hi-vision system (126700), most recently on 2025-12-08. 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 Hi-vision system have?

Hi-vision system has 10 buy-side and 0 sell-side disclosures on record, covering ₩801M ($556K) in total reported value, spanning 2024-11-27 to 2025-12-08.

Where does StockDrifts get Hi-vision system 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.

Hi-vision system 126700

Company

하이비젼시스템Hi-vision system

Insiders

Buys

Total Value

₩801M ($556K)

Avg Return

+13.51%

Last Filing

2025-12-08

Hi-vision system (126700) has 10 disclosed insider purchases and 0 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩801M ($556K) in reported transaction value. The earliest filing StockDrifts holds for Hi-vision system is dated 2024-11-27; the most recent is 2025-12-08. 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 +13.51%, 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
2025-12-08	BUY	PROGRAM	김상민 Sangmin Kim	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2025-12-08	BUY	PROGRAM	이윤호 Yunho Lee	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2025-12-08	BUY	자사주상여금	이지미 Lee Ji-mi	in charge	1.5K	₩16,100	+13.7%	₩24M ($17K)
2025-12-08	BUY	PROGRAM	윤용중 Yongjung Yoon	in charge	2.0K	₩16,100	+13.7%	₩32M ($22K)
2025-12-08	BUY	PROGRAM	도현석 Do Hyun-seok	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2025-12-08	BUY	자사주상여금	이병태 Lee Byung-tae	committee member	2.0K	₩16,100	+13.7%	₩32M ($22K)
2025-12-08	BUY	PROGRAM	이내형 Naehyung	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2025-12-08	BUY	PROGRAM	배영수 Youngsu Bae	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-31	SELL	임원퇴임	김동준 Dongjun Kim	implementation	-10.0K	₩17,670	-3.6%	₩177M ($123K)
2024-12-18	BUY	Market Buy	박상엽 Park Sang-yeop	general manager	4.0K	₩17,450	+4.9%	₩70M ($48K)
2024-12-11	BUY	Market Buy	최두원 Doowon Choi	CEO	9.5K	₩16,710	+9.5%	₩159M ($110K)
2024-12-11	BUY	Market Buy	이진태 Jintae Lee	general manager	4.6K	₩16,710	+9.5%	₩77M ($53K)
2024-12-10	BUY	Market Buy	이진태 Jintae Lee	general manager	1.0K	₩16,020	+14.2%	₩16M ($11K)
2024-12-10	BUY	Market Buy	박상엽 Park Sang-yeop	general manager	2.3K	₩16,020	+14.2%	₩38M ($26K)
2024-12-09	BUY	Market Buy	박상엽 Park Sang-yeop	general manager	5.0K	₩14,650	+24.9%	₩73M ($51K)
2024-12-06	BUY	Market Buy	박상엽 Park Sang-yeop	general manager	5.0K	₩15,510	+18.0%	₩78M ($54K)
2024-12-05	BUY	PROGRAM	이상용 Lee Sang-yong	committee member	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	자사주상여금	김상민 Sangmin Kim	in charge	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	자사주상여금	이윤호 Yunho Lee	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	PROGRAM	윤용중 Yongjung Yoon	in charge	2.0K	₩16,100	+13.7%	₩32M ($22K)
2024-12-05	BUY	자사주상여금	이진표 Jinpyo Lee	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	PROGRAM	이병태 Lee Byung-tae	committee member	2.0K	₩16,100	+13.7%	₩32M ($22K)
2024-12-05	BUY	자사주상여금	이진태 Jintae Lee	general manager	8.0K	₩16,100	+13.7%	₩129M ($89K)
2024-12-05	BUY	자사주상여금	김동준 Dongjun Kim	implementation	3.3K	₩16,100	+13.7%	₩54M ($37K)
2024-12-05	BUY	PROGRAM	신용규 Yonggyu Shin	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	PROGRAM	이내형 Naehyung	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	PROGRAM	배영수 Youngsu Bae	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-05	BUY	자사주상여금	도현석 Do Hyun-seok	implementation	1.3K	₩16,100	+13.7%	₩21M ($15K)
2024-12-03	BUY	신규선임	이지미 Lee Ji-mi	in charge	2.0K	₩16,610	+10.2%	₩33M ($23K)
2024-11-29	BUY	Market Buy	최두원 Doowon Choi	CEO	2.5K	₩15,990	+14.4%	₩40M ($28K)
2024-11-28	BUY	Market Buy	최두원 Doowon Choi	CEO	10.2K	₩16,200	+13.0%	₩166M ($115K)
2024-11-27	BUY	Market Buy	최두원 Doowon Choi	CEO	5.3K	₩16,280	+12.4%	₩85M ($59K)

Frequently asked questions

Who has been buying Hi-vision system stock?: 3 distinct insiders have filed 10 disclosed insider purchases in Hi-vision system (126700), most recently on 2025-12-08. 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 Hi-vision system have?: Hi-vision system has 10 buy-side and 0 sell-side disclosures on record, covering ₩801M ($556K) in total reported value, spanning 2024-11-27 to 2025-12-08.
Where does StockDrifts get Hi-vision system 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 Hi-vision system. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.