Who has been buying root lock stock?

2 distinct insiders have filed 5 disclosed insider purchases in root lock (253610), most recently on 2025-03-20. 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 root lock have?

root lock has 5 buy-side and 1 sell-side disclosures on record, covering ₩53M ($37K) in total reported value, spanning 2023-09-12 to 2025-03-20.

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.

root lock 253610

Company

루트락root lock

Insiders

Buys

Total Value

₩53M ($37K)

Avg Return

-15.77%

Last Filing

2025-03-20

root lock (253610) has 5 disclosed insider purchases and 1 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩53M ($37K) in reported transaction value. The earliest filing StockDrifts holds for root lock is dated 2023-09-12; the most recent is 2025-03-20. Across these filings the average return since disclosure is -15.77%, 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
2025-03-20	SELL	행사가액조정	엘앤케이바이오 L&K Bio	largest shareholder	-88.1K	₩1,400	+22.3%	₩123M ($86K)
2024-12-20	BUY	행사가액조정	엘앤케이바이오 L&K Bio	largest shareholder	88.1K	₩1,099	-1.0%	₩97M ($67K)
2024-12-05	BUY	주식매수선택권	최재훈 Jaehoon Choi	Managing Director	53.0K	₩1,199	-9.3%	₩64M ($44K)
2024-07-11	BUY	Market Buy	이상석 Lee Sang-seok	Managing Director	1.9K	₩1,329	-18.1%	₩3M ($2K)
2024-07-10	BUY	Market Buy	이상석 Lee Sang-seok	Managing Director	5.1K	₩1,504	-27.7%	₩8M ($5K)
2024-07-09	BUY	Market Buy	이상석 Lee Sang-seok	Managing Director	1.0K	₩1,428	-23.8%	₩1M ($992)
2024-07-04	BUY	Market Buy	이상석 Lee Sang-seok	Managing Director	9.0K	₩1,594	-31.7%	₩14M ($10K)
2024-06-20	BUY	CB인수	엘앤케이바이오 L&K Bio	largest shareholder	399.7K	₩1,544	-29.5%	₩617M ($429K)
2024-05-10	BUY	Market Buy	이상석 Lee Sang-seok	Managing Director	200	₩1,497	-27.3%	₩299K ($208)
2024-02-16	SELL	Market Sell	김윤수 Yunsoo Kim	Managing Director	-16.3K	₩1,649	+34.0%	₩27M ($19K)
2023-09-12	BUY	유상신주취득	엘앤케이바이오 L&K Bio	largest shareholder	741.0K	₩1,384	-21.4%	₩1.0B ($712K)
2023-09-12	BUY	제3자배정유상증자	김명종 Kim Myeong-jong	thanks	19.0K	₩1,384	-21.4%	₩26M ($18K)

Frequently asked questions

Who has been buying root lock stock?: 2 distinct insiders have filed 5 disclosed insider purchases in root lock (253610), most recently on 2025-03-20. 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 root lock have?: root lock has 5 buy-side and 1 sell-side disclosures on record, covering ₩53M ($37K) in total reported value, spanning 2023-09-12 to 2025-03-20.
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.