Who has been buying KT Millie's Study stock?

2 distinct insiders have filed 11 disclosed insider purchases in KT Millie's Study (418470), most recently on 2026-05-27. 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 KT Millie's Study have?

KT Millie's Study has 11 buy-side and 0 sell-side disclosures on record, covering ₩175M ($121K) in total reported value, spanning 2024-04-11 to 2026-05-27.

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.

KT Millie's Study 418470

Company

KT밀리의서재KT Millie's Study

Insiders

Buys

Total Value

₩175M ($121K)

Avg Return

+9.08%

Last Filing

2026-05-27

KT Millie's Study (418470) has 11 disclosed insider purchases and 0 disclosed disposals on record, filed by 2 distinct insiders. Together those filings cover ₩175M ($121K) in reported transaction value. The earliest filing StockDrifts holds for KT Millie's Study is dated 2024-04-11; the most recent is 2026-05-27. Across these filings the average return since disclosure is +9.08%, 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
2026-08-07	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	5	₩10,530	+4.3%	₩52K ($36)
2026-08-07	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	16	₩10,530	+4.3%	₩165K ($115)
2026-08-07	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	5.0K	₩10,530	+4.3%	₩52M ($36K)
2026-05-27	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	722	₩10,160	+1.4%	₩7M ($5K)
2026-05-27	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	4.0K	₩10,160	+1.4%	₩41M ($28K)
2026-05-27	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	2.4K	₩10,160	+1.4%	₩24M ($17K)
2026-05-27	BUY	Market Buy	정재욱 Jaewook Jeong	CEO	2.9K	₩10,160	+1.4%	₩29M ($20K)
2025-04-03	BUY	Market Buy	박현진 Hyunjin Park	CEO	749	₩12,200	+25.7%	₩9M ($6K)
2025-04-03	BUY	Market Buy	박현진 Hyunjin Park	CEO	251	₩12,200	+25.7%	₩3M ($2K)
2025-04-02	BUY	Market Buy	박현진 Hyunjin Park	CEO	500	₩12,300	+24.7%	₩6M ($4K)
2025-04-02	BUY	Market Buy	박현진 Hyunjin Park	CEO	1.0K	₩12,300	+24.7%	₩12M ($9K)
2025-04-02	BUY	Market Buy	박현진 Hyunjin Park	CEO	500	₩12,300	+24.7%	₩6M ($4K)
2024-08-14	SELL	합병	밀리 milli-	-	-653.3K	₩16,510	+7.1%	₩10.8B ($7.5M)
2024-08-14	BUY	합병	KT지니뮤직 KT Genie Music	-	653.3K	₩16,510	-7.1%	₩10.8B ($7.5M)
2024-05-24	BUY	기타	KT지니뮤직 KT Genie Music	-	100.0K	₩20,000	-23.3%	₩2.0B ($1.4M)
2024-04-11	BUY	Market Buy	박현진 Hyunjin Park	CEO	1.0K	₩18,180	-15.6%	₩18M ($13K)
2024-04-11	BUY	Market Buy	박현진 Hyunjin Park	CEO	1.0K	₩18,180	-15.6%	₩18M ($13K)

Frequently asked questions

Who has been buying KT Millie's Study stock?: 2 distinct insiders have filed 11 disclosed insider purchases in KT Millie's Study (418470), most recently on 2026-05-27. 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 KT Millie's Study have?: KT Millie's Study has 11 buy-side and 0 sell-side disclosures on record, covering ₩175M ($121K) in total reported value, spanning 2024-04-11 to 2026-05-27.
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.