Who has been buying ES Cube stock?

4 distinct insiders have filed 96 disclosed insider purchases in ES Cube (050120), most recently on 2026-06-17. 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 ES Cube have?

ES Cube has 96 buy-side and 1 sell-side disclosures on record, covering ₩4.9B ($3.4M) in total reported value, spanning 2024-08-29 to 2026-06-17.

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.

ES Cube 050120

Company

ES큐브ES Cube

Insiders

Buys

Total Value

₩4.9B ($3.4M)

Avg Return

+20.51%

Last Filing

2026-06-17

ES Cube (050120) has 96 disclosed insider purchases and 1 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩4.9B ($3.4M) in reported transaction value. The earliest filing StockDrifts holds for ES Cube is dated 2024-08-29; the most recent is 2026-06-17. Across these filings the average return since disclosure is +20.51%, 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
2026-08-25	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	3.7K	₩3,230	+0.9%	₩12M ($8K)
2026-08-24	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	234.1K	₩3,300	-1.2%	₩772M ($536K)
2026-08-24	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	104.3K	₩3,300	-1.2%	₩344M ($239K)
2026-08-21	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	13.8K	₩3,300	-1.2%	₩46M ($32K)
2026-08-20	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	9.6K	₩3,300	-1.2%	₩32M ($22K)
2026-08-19	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	14.1K	₩3,495	+0.0%	₩49M ($34K)
2026-08-18	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	8.3K	₩3,480	+0.4%	₩29M ($20K)
2026-08-14	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	2.6K	₩3,450	+1.3%	₩9M ($6K)
2026-08-13	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	25.0K	₩3,285	+6.4%	₩82M ($57K)
2026-08-12	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	27.8K	₩3,330	+5.0%	₩92M ($64K)
2026-06-17	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	388.0K	-	-	-
2026-04-17	BUY	Market Buy	에이치비홀딩스그룹 HB Holdings Group	-	33.5K	₩3,050	-3.3%	₩102M ($71K)
2026-04-16	BUY	Market Buy	비케이자산관리대부 BK Asset Management Loan	-	133.2K	₩3,190	-7.5%	₩425M ($295K)
2026-04-16	BUY	Market Buy	에이치비홀딩스그룹 HB Holdings Group	-	168.4K	₩3,190	-7.5%	₩537M ($373K)
2025-12-16	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	2.7K	₩3,155	-14.4%	₩8M ($6K)
2025-12-15	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	7.3K	₩2,990	-9.7%	₩22M ($15K)
2025-11-14	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	10.3K	₩3,000	-10.0%	₩31M ($21K)
2025-11-13	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	5.0K	₩3,170	-14.8%	₩16M ($11K)
2025-11-12	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	20.8K	₩3,095	-12.8%	₩64M ($45K)
2025-11-05	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	22.4K	₩2,915	-7.4%	₩65M ($45K)
2025-10-30	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	8.6K	₩2,830	-4.6%	₩24M ($17K)
2025-10-22	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	39.8K	₩2,865	-5.8%	₩114M ($79K)
2025-10-21	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	100.8K	₩2,770	-2.5%	₩279M ($194K)
2025-10-10	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	33.8K	₩2,935	-8.0%	₩99M ($69K)
2025-09-26	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	14.6K	₩2,895	-6.7%	₩42M ($29K)
2025-09-24	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	19.5K	₩3,040	-11.2%	₩59M ($41K)
2025-09-22	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	2.5K	₩2,930	-7.8%	₩7M ($5K)
2025-09-18	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	12.4K	₩2,790	-3.2%	₩35M ($24K)
2025-09-16	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	21.4K	₩2,750	-1.8%	₩59M ($41K)
2025-09-12	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	108.7K	₩2,875	-6.1%	₩313M ($217K)
2025-09-04	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	9.5K	₩2,425	+11.3%	₩23M ($16K)
2025-09-03	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	3.6K	₩2,415	+11.8%	₩9M ($6K)
2025-09-02	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	16.8K	₩2,410	+12.0%	₩41M ($28K)
2025-08-29	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	64.0K	₩2,490	+8.4%	₩159M ($111K)
2025-08-28	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	30.1K	₩2,515	+7.4%	₩76M ($53K)
2025-06-11	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	15.4K	₩2,955	-8.6%	₩46M ($32K)
2025-06-10	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	51.3K	₩3,010	-10.3%	₩154M ($107K)
2025-06-09	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	20.0K	₩2,975	-9.2%	₩60M ($41K)
2025-05-07	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	11.8K	₩2,640	+2.3%	₩31M ($22K)
2025-05-02	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	3.3K	₩2,685	+0.6%	₩9M ($6K)
2025-04-30	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	4.7K	₩2,680	+0.8%	₩13M ($9K)
2025-04-29	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	4.9K	₩2,600	+3.9%	₩13M ($9K)
2025-04-28	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	18.5K	₩2,590	+4.3%	₩48M ($33K)
2025-04-24	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	17.9K	₩2,580	+4.7%	₩46M ($32K)
2025-04-15	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	18.3K	₩2,615	+3.3%	₩48M ($33K)
2025-04-11	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	8.4K	₩2,630	+2.7%	₩22M ($15K)
2025-04-10	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	11.2K	₩2,530	+6.7%	₩28M ($20K)
2025-04-09	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	3.1K	₩2,485	+8.7%	₩8M ($5K)
2025-04-08	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	4.4K	₩2,450	+10.2%	₩11M ($7K)
2025-04-03	BUY	Market Buy	와이엔케이인베스트먼트 Y&K Investment	-	4.6K	₩2,415	+11.8%	₩11M ($8K)

Showing the 50 most recent of 107 filings.

Frequently asked questions

Who has been buying ES Cube stock?: 4 distinct insiders have filed 96 disclosed insider purchases in ES Cube (050120), most recently on 2026-06-17. 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 ES Cube have?: ES Cube has 96 buy-side and 1 sell-side disclosures on record, covering ₩4.9B ($3.4M) in total reported value, spanning 2024-08-29 to 2026-06-17.
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.