Who has been buying DASCO stock?

4 distinct insiders have filed 25 disclosed insider purchases in DASCO (058730), 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 DASCO have?

DASCO has 25 buy-side and 0 sell-side disclosures on record, covering ₩991M ($688K) in total reported value, spanning 2016-04-01 to 2026-06-15.

Where does StockDrifts get DASCO 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.

DASCO 058730

Company

다스코DASCO

Insiders

Buys

Total Value

₩991M ($688K)

Avg Return

+17.25%

Last Filing

2026-06-15

DASCO (058730) has 25 disclosed insider purchases and 0 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩991M ($688K) in reported transaction value. The earliest filing StockDrifts holds for DASCO is dated 2016-04-01; the most recent is 2026-06-15. 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 +17.25%, 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	장형준 Hyeongjun Jang	Managing Director	18.0K	₩2,780	+0.0%	₩50M ($35K)
2026-06-10	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	950	₩2,580	+7.8%	₩2M ($2K)
2026-06-04	BUY	Market Buy	한상원 Han Sang-won	CEO	175.0K	₩2,480	+12.1%	₩434M ($301K)
2025-09-02	BUY	장외매수	한남철 Han Nam-cheol	president	47.0K	₩2,920	+28.3%	₩137M ($95K)
2025-02-01	BUY	신규선임	이명훈 Myung-Hoon Lee	moving	200	₩2,935	+27.6%	₩587K ($408)
2025-02-01	BUY	신규선임	강혁 Kanghyuk	moving	10.0K	₩2,935	+27.6%	₩29M ($20K)
2024-12-20	BUY	Market Buy	한남철 Han Nam-cheol	president	50.0K	₩2,890	+29.6%	₩145M ($100K)
2024-12-19	BUY	Market Buy	한남철 Han Nam-cheol	president	40.0K	₩3,015	+24.2%	₩121M ($84K)
2024-12-18	BUY	Market Buy	한남철 Han Nam-cheol	president	10.0K	₩3,000	+24.8%	₩30M ($21K)
2024-12-11	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	4.1K	₩2,975	+25.9%	₩12M ($9K)
2024-12-10	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	10.0K	₩2,875	+30.3%	₩29M ($20K)
2024-12-10	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	2.0K	₩2,875	+30.3%	₩6M ($4K)
2024-12-10	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	2.0K	₩2,875	+30.3%	₩6M ($4K)
2024-12-06	BUY	Market Buy	김택관 Taekwan Kim	Managing Director	11.0K	₩2,780	+34.7%	₩31M ($21K)
2024-12-04	BUY	Market Buy	김택관 Taekwan Kim	Managing Director	30.0K	₩3,005	+24.6%	₩90M ($63K)
2024-04-18	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	1.1K	₩3,435	+9.0%	₩4M ($3K)
2024-04-18	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	2.0K	₩3,435	+9.0%	₩7M ($5K)
2024-04-18	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	200	₩3,435	+9.0%	₩687K ($477)
2024-04-11	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	2.0K	₩3,475	+7.8%	₩7M ($5K)
2024-04-11	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	1.7K	₩3,475	+7.8%	₩6M ($4K)
2024-02-08	BUY	Market Buy	장형준 Hyeongjun Jang	Managing Director	3.0K	₩4,010	-6.6%	₩12M ($8K)
2023-04-12	BUY	기타	한상용 Han Sang-yong	Managing Director	1.8K	₩4,600	-18.6%	₩8M ($6K)
2021-01-12	BUY	Market Buy	한상원 Han Sang-won	CEO	451	-	-	-
2020-03-23	BUY	Market Buy	한상원 Han Sang-won	CEO	11.1K	-	-	-
2020-03-17	BUY	Market Buy	한상원 Han Sang-won	CEO	25.0K	-	-	-
2020-03-16	BUY	Market Buy	한상원 Han Sang-won	CEO	13.5K	-	-	-
2019-08-12	BUY	Market Buy	한상원 Han Sang-won	CEO	10.0K	-	-	-
2019-08-09	BUY	Market Buy	한상원 Han Sang-won	CEO	65.0K	-	-	-
2018-09-14	SELL	시간외매매	한상원 Han Sang-won	CEO	-400.0K	-	-	-
2017-02-08	BUY	Market Buy	한상원 Han Sang-won	CEO	8.2K	-	-	-
2016-05-04	BUY	유상신주취득	한상원 Han Sang-won	CEO	391.8K	-	-	-
2016-05-04	SELL	기타	한상원 Han Sang-won	CEO	-390.7K	-	-	-
2016-04-14	SELL	증여	한상원 Han Sang-won	CEO	-300.0K	-	-	-
2016-04-01	BUY	기타	한상원 Han Sang-won	CEO	690.7K	-	-	-

Frequently asked questions

Who has been buying DASCO stock?: 4 distinct insiders have filed 25 disclosed insider purchases in DASCO (058730), 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 DASCO have?: DASCO has 25 buy-side and 0 sell-side disclosures on record, covering ₩991M ($688K) in total reported value, spanning 2016-04-01 to 2026-06-15.
Where does StockDrifts get DASCO 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 DASCO. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.