Who has been buying Plasmap stock?

3 distinct insiders have filed 27 disclosed insider purchases in Plasmap (405000), most recently on 2026-06-19. 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 Plasmap have?

Plasmap has 27 buy-side and 5 sell-side disclosures on record, covering ₩7.9B ($5.5M) in total reported value, spanning 2024-07-29 to 2026-06-19.

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.

Plasmap 405000

Company

플라즈맵Plasmap

Insiders

Buys

Total Value

₩7.9B ($5.5M)

Avg Return

-54.43%

Last Filing

2026-06-19

Plasmap (405000) has 27 disclosed insider purchases and 5 disclosed disposals on record, filed by 3 distinct insiders. Together those filings cover ₩7.9B ($5.5M) in reported transaction value. The earliest filing StockDrifts holds for Plasmap is dated 2024-07-29; the most recent is 2026-06-19. Across these filings the average return since disclosure is -54.43%, 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
2026-07-31	BUY	제3자배정유상증자	드림텍 Dreamtech	-	1.5M	₩4,490	+0.0%	₩7.0B ($4.9M)
2026-06-19	BUY	Market Buy	이윤철 Yuncheol Lee	CEO	300	₩3,935	+0.0%	₩1M ($820)
2026-06-17	BUY	Market Buy	이윤철 Yuncheol Lee	CEO	67	₩4,155	-5.3%	₩278K ($193)
2026-06-16	BUY	Market Buy	이윤철 Yuncheol Lee	CEO	1.0K	₩4,300	-8.5%	₩4M ($3K)
2026-05-29	SELL	Market Sell	임유봉 Lim Yu-bong	Team leader	-8.4K	₩5,230	-7.3%	₩44M ($30K)
2026-05-28	SELL	Market Sell	임유봉 Lim Yu-bong	Team leader	-5.0K	₩5,380	-4.3%	₩27M ($19K)
2026-05-27	SELL	Market Sell	임유봉 Lim Yu-bong	Team leader	-5.9K	₩5,560	-0.9%	₩33M ($23K)
2025-11-18	SELL	Market Sell	임유봉 Lim Yu-bong	Team leader	-2.8K	₩7,220	+22.4%	₩20M ($14K)
2025-11-17	SELL	Market Sell	임유봉 Lim Yu-bong	Team leader	-35.5K	₩7,170	+21.9%	₩254M ($177K)
2025-04-29	BUY	제3자배정유상증자	이윤철 Yuncheol Lee	general manager	16.7K	₩7,300	-23.3%	₩122M ($85K)
2025-04-28	BUY	제3자배정유상증자	김용철 Kim Yong-cheol	Head of Management Division	5.0K	₩7,300	-23.3%	₩37M ($25K)
2025-04-28	BUY	제3자배정유상증자	드림텍 Dreamtech	-	668.9K	₩7,300	-23.3%	₩4.9B ($3.4M)
2025-04-28	BUY	제3자배정유상증자	김형민 Hyungmin Kim	CEO	16.7K	₩7,300	-23.3%	₩122M ($85K)
2025-04-22	SELL	자본감소	임유봉 Lim Yu-bong	Team leader	-2.4M	₩7,300	+23.3%	₩17.5B ($12.1M)
2025-04-22	SELL	자본감소	드림텍 Dreamtech	-	-3.5M	₩7,300	+23.3%	₩25.9B ($18.0M)
2025-04-22	SELL	자본감소	김형민 Hyungmin Kim	CEO	-34.2K	₩7,300	+23.3%	₩250M ($173K)
2025-04-22	SELL	자본감소	김용철 Kim Yong-cheol	Head of Management Division	-17.1K	₩7,300	+23.3%	₩125M ($87K)
2024-10-04	BUY	Market Buy	드림텍 Dreamtech	-	393	₩21,691	-74.2%	₩9M ($6K)
2024-10-02	BUY	Market Buy	드림텍 Dreamtech	-	7.2K	₩21,592	-74.1%	₩155M ($108K)
2024-09-30	BUY	Market Buy	드림텍 Dreamtech	-	14.3K	₩22,137	-74.7%	₩317M ($220K)
2024-09-27	BUY	Market Buy	드림텍 Dreamtech	-	8.3K	₩22,682	-75.3%	₩187M ($130K)
2024-09-26	BUY	Market Buy	드림텍 Dreamtech	-	10.0K	₩22,632	-75.3%	₩226M ($157K)
2024-09-25	BUY	Market Buy	드림텍 Dreamtech	-	9.0K	₩22,038	-74.6%	₩198M ($137K)
2024-09-24	BUY	Market Buy	드림텍 Dreamtech	-	7.4K	₩21,989	-74.5%	₩162M ($113K)
2024-09-23	BUY	Market Buy	드림텍 Dreamtech	-	12.9K	₩21,840	-74.4%	₩283M ($196K)
2024-09-20	BUY	Market Buy	드림텍 Dreamtech	-	22.7K	₩21,741	-74.2%	₩494M ($343K)
2024-09-19	BUY	Market Buy	드림텍 Dreamtech	-	9.9K	₩21,295	-73.7%	₩211M ($146K)
2024-09-13	BUY	신규선임	김형민 Hyungmin Kim	CEO	38.0K	₩20,800	-73.1%	₩791M ($549K)
2024-09-13	BUY	신규선임	김용철 Kim Yong-cheol	Head of Management Division	19.0K	₩20,800	-73.1%	₩395M ($275K)
2024-09-12	BUY	Market Buy	드림텍 Dreamtech	-	17.2K	₩20,949	-73.3%	₩361M ($250K)
2024-09-11	BUY	Market Buy	드림텍 Dreamtech	-	14.7K	₩20,008	-72.0%	₩295M ($205K)
2024-09-10	BUY	Market Buy	드림텍 Dreamtech	-	12.2K	₩19,275	-71.0%	₩235M ($163K)
2024-09-09	BUY	Market Buy	드림텍 Dreamtech	-	9.0K	₩18,978	-70.5%	₩171M ($119K)
2024-09-06	BUY	Market Buy	드림텍 Dreamtech	-	26.5K	₩18,670	-70.0%	₩494M ($343K)
2024-09-05	BUY	Market Buy	드림텍 Dreamtech	-	19.0K	₩19,324	-71.0%	₩368M ($255K)
2024-08-29	BUY	Market Buy	드림텍 Dreamtech	-	985	₩20,552	-72.8%	₩20M ($14K)
2024-08-28	BUY	Market Buy	드림텍 Dreamtech	-	35.8K	₩20,850	-73.1%	₩746M ($518K)
2024-08-27	BUY	Market Buy	드림텍 Dreamtech	-	21.2K	₩20,949	-73.3%	₩443M ($308K)
2024-08-26	BUY	Market Buy	드림텍 Dreamtech	-	15.8K	₩20,949	-73.3%	₩330M ($229K)
2024-08-23	BUY	Market Buy	드림텍 Dreamtech	-	24.3K	₩20,949	-73.3%	₩509M ($353K)
2024-08-22	BUY	Market Buy	드림텍 Dreamtech	-	8.6K	₩21,592	-74.1%	₩186M ($129K)
2024-08-21	BUY	Market Buy	드림텍 Dreamtech	-	50.7K	₩21,345	-73.8%	₩1.1B ($752K)
2024-08-20	BUY	Market Buy	드림텍 Dreamtech	-	815	₩21,246	-73.6%	₩17M ($12K)
2024-07-29	BUY	신규주요주주	드림텍 Dreamtech	-	3.6M	₩26,694	-79.0%	₩95.5B ($66.3M)
2024-07-29	BUY	제3자배정유상증자	홍유동 Hongyu-dong	Chairman (Internal Director)	11.4K	₩26,694	-79.0%	₩304M ($211K)

Frequently asked questions

Who has been buying Plasmap stock?: 3 distinct insiders have filed 27 disclosed insider purchases in Plasmap (405000), most recently on 2026-06-19. 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 Plasmap have?: Plasmap has 27 buy-side and 5 sell-side disclosures on record, covering ₩7.9B ($5.5M) in total reported value, spanning 2024-07-29 to 2026-06-19.
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.