Who has been buying LDT stock?

4 distinct insiders have filed 13 disclosed insider purchases in LDT (096870), most recently on 2026-07-10. 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 LDT have?

LDT has 13 buy-side and 0 sell-side disclosures on record, covering ₩58M ($41K) in total reported value, spanning 2025-08-05 to 2026-07-10.

Where does StockDrifts get LDT insider data?

From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

LDT 096870

Company

엘디티LDT

Insiders

Buys

Total Value

₩58M ($41K)

Avg Return

-4.56%

Last Filing

2026-07-10

LDT (096870) has 13 disclosed insider purchases and 0 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩58M ($41K) in reported transaction value. The earliest filing StockDrifts holds for LDT is dated 2025-08-05; the most recent is 2026-07-10. All of it is parsed from DART D001/D002 insider disclosures, the official disclosure system operated by the Financial Supervisory Service (Korea). Across these filings the average return since disclosure is -4.56%, 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
2026-07-27	BUY	Market Buy	정남진 Namjin Jeong	Managing Director	300	₩2,405	-5.4%	₩707K ($491)
2026-07-23	BUY	Market Buy	정남진 Namjin Jeong	Managing Director	800	₩2,345	-3.0%	₩2M ($1K)
2026-07-22	BUY	Market Buy	정남진 Namjin Jeong	Managing Director	100	₩2,330	-2.4%	₩229K ($159)
2026-07-20	BUY	Market Buy	정남진 Namjin Jeong	Managing Director	1.4K	₩2,285	+4.8%	₩3M ($2K)
2026-07-16	BUY	Market Buy	정남진 Namjin Jeong	Managing Director	2.0K	₩2,375	+0.8%	₩5M ($3K)
2026-07-15	BUY	Market Buy	장남철 Jang Nam-cheol	Managing Director	4.0K	₩2,405	-0.4%	₩9M ($7K)
2026-07-13	BUY	Market Buy	김정준 Jeongjun Kim	CEO	1.4K	₩2,215	+4.5%	₩3M ($2K)
2026-07-10	BUY	Market Buy	장경진 Kyungjin Jang	Managing Director	2.0K	₩2,275	+4.4%	₩4M ($3K)
2026-07-09	BUY	Market Buy	김정준 Jeongjun Kim	CEO	13.6K	₩2,100	+13.1%	₩31M ($21K)
2026-07-09	BUY	Market Buy	장경진 Kyungjin Jang	Managing Director	1.0K	₩2,100	+13.1%	₩2M ($2K)
2026-07-02	BUY	Market Buy	나대식 Na Daesik	Managing Director	200	₩2,330	-9.9%	₩466K ($324)
2026-07-02	BUY	Market Buy	나대식 Na Daesik	Managing Director	400	₩2,330	-9.9%	₩932K ($647)
2026-07-01	BUY	Market Buy	나대식 Na Daesik	Managing Director	51	₩2,355	-10.8%	₩120K ($83)
2026-06-30	BUY	Market Buy	나대식 Na Daesik	Managing Director	249	₩2,360	-11.0%	₩588K ($408)
2026-06-29	BUY	Market Buy	나대식 Na Daesik	Managing Director	500	₩2,215	-5.2%	₩1M ($769)
2026-06-25	BUY	Market Buy	장경진 Kyungjin Jang	Managing Director	1.0K	-	-	-
2026-06-24	BUY	Market Buy	장경진 Kyungjin Jang	Managing Director	1.0K	-	-	-
2025-12-02	BUY	제3자배정유상증자	티에스이 TSE	-	1.7M	₩2,495	-10.2%	₩4.2B ($2.9M)
2025-08-08	BUY	Market Buy	정재천 Jaecheon Jeong	CEO	1.0K	₩2,510	-10.8%	₩3M ($2K)
2025-08-06	BUY	Market Buy	정재천 Jaecheon Jeong	CEO	3.0K	₩2,520	-11.1%	₩8M ($5K)
2025-08-05	BUY	Market Buy	정재천 Jaecheon Jeong	CEO	3.0K	₩2,550	-12.2%	₩8M ($5K)

Frequently asked questions

Who has been buying LDT stock?: 4 distinct insiders have filed 13 disclosed insider purchases in LDT (096870), most recently on 2026-07-10. 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 LDT have?: LDT has 13 buy-side and 0 sell-side disclosures on record, covering ₩58M ($41K) in total reported value, spanning 2025-08-05 to 2026-07-10.
Where does StockDrifts get LDT insider data?: From DART D001/D002 insider disclosures — the official filing system run by the Financial Supervisory Service (Korea). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from DART.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean DART filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Source filings

Every trade listed above is disclosed in DART D001/D002 insider disclosures, filed with the Financial Supervisory Service (Korea). View the original DART filings for LDT. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.