Who has been buying Monitor Lab stock?

2 distinct insiders have filed 20 disclosed insider purchases in Monitor Lab (434480), most recently on 2026-06-15. 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 Monitor Lab have?

Monitor Lab has 20 buy-side and 1 sell-side disclosures on record, covering ₩179M ($125K) in total reported value, spanning 2024-04-26 to 2026-06-15.

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.

Monitor Lab 434480

Company

모니터랩Monitor Lab

Insiders

Buys

Total Value

₩179M ($125K)

Avg Return

-6.88%

Last Filing

2026-06-15

Monitor Lab (434480) has 20 disclosed insider purchases and 1 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩179M ($125K) in reported transaction value. The earliest filing StockDrifts holds for Monitor Lab is dated 2024-04-26; the most recent is 2026-06-15. Across these filings the average return since disclosure is -6.88%, 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
2026-06-15	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	1	₩2,770	-14.3%	₩3K ($2)
2026-06-12	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	300	₩2,745	-13.5%	₩824K ($572)
2026-06-09	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	100	₩2,820	-15.8%	₩282K ($196)
2026-06-08	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	200	₩2,615	-9.2%	₩523K ($363)
2026-06-05	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	200	₩2,975	-20.2%	₩595K ($413)
2026-06-04	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	200	₩3,005	-21.0%	₩601K ($417)
2026-04-21	BUY	장외매수	노용환 Yonghwan Noh	Internal director	247.0K	₩4,180	+4.4%	₩1.0B ($717K)
2026-03-09	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	400	₩3,335	+2.5%	₩1M ($926)
2026-03-06	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	800	₩3,470	-1.4%	₩3M ($2K)
2026-03-05	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	1.0K	₩3,485	-1.9%	₩3M ($2K)
2026-03-04	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	200	₩3,135	+9.1%	₩627K ($435)
2026-02-25	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	100	₩3,885	-12.0%	₩389K ($270)
2026-02-10	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	1.2K	₩3,800	-10.0%	₩4M ($3K)
2026-01-23	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	531	₩3,790	-9.8%	₩2M ($1K)
2026-01-21	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	457	₩3,640	-6.0%	₩2M ($1K)
2026-01-20	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	600	₩3,740	-8.6%	₩2M ($2K)
2026-01-19	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	260	₩3,665	-6.7%	₩953K ($662)
2026-01-16	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	304	₩3,665	-6.7%	₩1M ($774)
2026-01-13	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	250	₩3,835	-10.8%	₩959K ($666)
2026-01-12	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	500	₩3,805	-10.1%	₩2M ($1K)
2026-01-09	BUY	Market Buy	이광후 Lee Kwang-hoo	CEO	1.7K	₩3,725	-8.2%	₩7M ($5K)
2025-09-24	SELL	Market Sell	김현목 Hyunmok Kim	Managing Director	-30.0K	₩4,875	+29.9%	₩146M ($102K)
2025-03-28	SELL	임원퇴임	안병규 Ahn Byeong-gyu	vice president	-1.1M	₩3,915	+12.6%	₩4.4B ($3.1M)
2025-02-27	BUY	주식매수선택권	박민아 Minah Park	Managing Director	57.0K	₩4,365	-21.6%	₩249M ($173K)
2024-04-26	BUY	주식매수선택권	박민아 Minah Park	Managing Director	43.0K	₩5,970	-42.7%	₩257M ($178K)

Frequently asked questions

Who has been buying Monitor Lab stock?: 2 distinct insiders have filed 20 disclosed insider purchases in Monitor Lab (434480), most recently on 2026-06-15. 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 Monitor Lab have?: Monitor Lab has 20 buy-side and 1 sell-side disclosures on record, covering ₩179M ($125K) in total reported value, spanning 2024-04-26 to 2026-06-15.
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.