Who has been buying Vistos stock?

4 distinct insiders have filed 2 disclosed insider purchases in Vistos (419540), most recently on 2026-06-18. 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 Vistos have?

Vistos has 2 buy-side and 44 sell-side disclosures on record, covering ₩631M ($438K) in total reported value, spanning 2023-03-29 to 2026-06-18.

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.

Vistos 419540

Company

비스토스Vistos

Insiders

Buys

Total Value

₩631M ($438K)

Avg Return

+18.82%

Last Filing

2026-06-18

Vistos (419540) has 2 disclosed insider purchases and 44 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩631M ($438K) in reported transaction value. The earliest filing StockDrifts holds for Vistos is dated 2023-03-29; the most recent is 2026-06-18. Across these filings the average return since disclosure is +18.82%, 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
2026-08-19	BUY	Market Buy	씨유메디칼 CU Medical	-	28.4K	-	-	-
2026-08-18	BUY	Market Buy	씨유메디칼 CU Medical	-	7.9K	-	-	-
2026-08-14	BUY	Market Buy	씨유메디칼 CU Medical	-	5.2K	-	-	-
2026-06-18	BUY	제3자배정유상증자	씨유메디칼 CU Medical	-	1.4M	₩3,170	-5.5%	₩4.3B ($3.0M)
2026-06-05	BUY	Market Buy	씨유메디칼 CU Medical	-	9.9K	₩2,800	+14.3%	₩28M ($19K)
2026-05-20	SELL	주식병합	씨유메디칼 CU Medical	-	-6.2M	₩4,385	+27.0%	₩27.3B ($19.0M)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-34.0K	₩1,300	+20.1%	₩44M ($31K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-293	₩1,300	+20.1%	₩381K ($265)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-40.7K	₩1,300	+20.1%	₩53M ($37K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-40.0K	₩1,300	+20.1%	₩52M ($36K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-85	₩1,300	+20.1%	₩111K ($77)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-240	₩1,300	+20.1%	₩312K ($217)
2026-01-21	SELL	Market Sell	이한나 Hanna Lee	moving	-10.0K	₩1,300	+20.1%	₩13M ($9K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-20.0K	₩1,300	+20.1%	₩26M ($18K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-10.3K	₩1,300	+20.1%	₩13M ($9K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-10.0K	₩1,300	+20.1%	₩13M ($9K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-9.8K	₩1,300	+20.1%	₩13M ($9K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-7.9K	₩1,300	+20.1%	₩10M ($7K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-1.5K	₩1,300	+20.1%	₩2M ($1K)
2026-01-21	SELL	Market Sell	박승기 Seunggi Park	moving	-339	₩1,300	+20.1%	₩441K ($306)
2026-01-20	SELL	장외매도	이후정 Lee Hu-jeong	CEO	-4.5M	₩1,070	+3.0%	₩4.8B ($3.4M)
2026-01-20	BUY	장외매수	씨유메디칼 CU Medical	-	7.8M	₩1,070	-3.0%	₩8.3B ($5.8M)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-2.0K	₩1,156	+10.2%	₩2M ($2K)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-1.0K	₩1,156	+10.2%	₩1M ($803)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-2.0K	₩1,156	+10.2%	₩2M ($2K)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-4.0K	₩1,156	+10.2%	₩5M ($3K)
2025-12-15	SELL	Market Sell	박승기 Seunggi Park	moving	-5.0K	₩1,156	+10.2%	₩6M ($4K)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-291	₩1,145	+9.3%	₩333K ($231)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-5.3K	₩1,145	+9.3%	₩6M ($4K)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-3.1K	₩1,145	+9.3%	₩4M ($2K)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-2.7K	₩1,145	+9.3%	₩3M ($2K)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-1.5K	₩1,145	+9.3%	₩2M ($1K)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-1.3K	₩1,145	+9.3%	₩2M ($1K)
2025-12-12	SELL	Market Sell	박승기 Seunggi Park	moving	-726	₩1,145	+9.3%	₩831K ($577)
2025-12-10	SELL	Market Sell	박승기 Seunggi Park	moving	-588	₩1,122	+7.5%	₩660K ($458)
2025-12-10	SELL	Market Sell	박승기 Seunggi Park	moving	-10.0K	₩1,122	+7.5%	₩11M ($8K)
2025-12-10	SELL	Market Sell	박승기 Seunggi Park	moving	-3.1K	₩1,122	+7.5%	₩4M ($2K)
2025-12-10	SELL	Market Sell	박승기 Seunggi Park	moving	-1.3K	₩1,122	+7.5%	₩1M ($990)
2024-09-26	SELL	Market Sell	강명진 Kang Myeong-jin	Managing Director	-6.5K	₩2,180	+52.4%	₩14M ($10K)
2024-09-25	SELL	Market Sell	강명진 Kang Myeong-jin	Managing Director	-11.0K	₩2,165	+52.1%	₩24M ($17K)
2024-09-24	SELL	Market Sell	강명진 Kang Myeong-jin	Managing Director	-28.0K	₩2,205	+52.9%	₩62M ($43K)
2024-09-23	SELL	Market Sell	강명진 Kang Myeong-jin	Managing Director	-11.5K	₩2,145	+51.6%	₩25M ($17K)
2024-09-23	BUY	Market Buy	강명진 Kang Myeong-jin	Managing Director	1.0K	₩2,145	-51.6%	₩2M ($1K)
2024-09-20	SELL	Market Sell	강명진 Kang Myeong-jin	Managing Director	-41.8K	₩2,180	+52.4%	₩91M ($63K)

Showing the 50 most recent of 54 filings.

Frequently asked questions

Who has been buying Vistos stock?: 4 distinct insiders have filed 2 disclosed insider purchases in Vistos (419540), most recently on 2026-06-18. 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 Vistos have?: Vistos has 2 buy-side and 44 sell-side disclosures on record, covering ₩631M ($438K) in total reported value, spanning 2023-03-29 to 2026-06-18.
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.