Who has been buying Dongsung Chemical stock?

4 distinct insiders have filed 21 disclosed insider purchases in Dongsung Chemical (102260), most recently on 2026-07-07. 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 Dongsung Chemical have?

Dongsung Chemical has 21 buy-side and 1 sell-side disclosures on record, covering ₩290M ($201K) in total reported value, spanning 2024-03-07 to 2026-07-07.

Where does StockDrifts get Dongsung Chemical 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.

Dongsung Chemical 102260

Company

동성케미컬Dongsung Chemical

Insiders

Buys

Total Value

₩290M ($201K)

Avg Return

+9.03%

Last Filing

2026-07-07

Dongsung Chemical (102260) has 21 disclosed insider purchases and 1 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩290M ($201K) in reported transaction value. The earliest filing StockDrifts holds for Dongsung Chemical is dated 2024-03-07; the most recent is 2026-07-07. 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 +9.03%, 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
2026-07-07	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.8K	₩3,625	-4.0%	₩10M ($7K)
2026-06-29	BUY	Market Buy	이만우 Lee Man-woo	CEO	1.0K	₩3,530	-1.4%	₩4M ($2K)
2026-04-07	BUY	PROGRAM	백진우 Jinwoo Baek	CEO	2.4K	₩4,135	+6.5%	₩10M ($7K)
2026-03-26	BUY	PROGRAM	이만우 Lee Man-woo	CEO	90	₩4,365	-2.1%	₩393K ($273)
2026-03-26	BUY	PROGRAM	하재량 Ha Jae-ryang	Managing Director	33	₩4,365	-2.1%	₩144K ($100)
2026-03-26	BUY	PROGRAM	신성희 Seonghee Shin	vice president	35	₩4,365	-2.1%	₩153K ($106)
2026-03-26	BUY	PROGRAM	조성원 Cho Seong-won	vice president	50	₩4,365	-2.1%	₩218K ($152)
2026-03-26	BUY	PROGRAM	백진우 Jinwoo Baek	CEO	880	₩4,365	-2.1%	₩4M ($3K)
2026-03-26	BUY	PROGRAM	디에스티아이 DST I	-	208.5K	₩4,365	-2.1%	₩910M ($632K)
2026-03-26	BUY	PROGRAM	정덕우 Deokwoo Jeong	Managing Director	10	₩4,365	-2.1%	₩44K ($30)
2026-03-26	BUY	PROGRAM	신형철 Shin Hyeong-cheol	Managing Director	73	₩4,365	-2.1%	₩319K ($221)
2026-03-26	BUY	PROGRAM	이연주 Yeonju Lee	Managing Director	7	₩4,365	-2.1%	₩31K ($21)
2026-01-07	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.4K	₩4,100	+13.1%	₩10M ($7K)
2026-01-01	BUY	신규선임	이연주 Yeonju Lee	Managing Director	770	₩4,150	+11.7%	₩3M ($2K)
2025-10-13	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.4K	₩4,038	+14.8%	₩10M ($7K)
2025-07-08	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.2K	₩4,305	+7.7%	₩10M ($7K)
2025-07-03	SELL	Market Sell	노중식 Noh Jung-sik	Managing Director	-22.4K	₩4,449	-4.2%	₩100M ($69K)
2025-04-08	BUY	PROGRAM	백진우 Jinwoo Baek	CEO	2.7K	₩3,537	+31.0%	₩10M ($7K)
2025-03-27	BUY	PROGRAM	노중식 Noh Jung-sik	Managing Director	222	₩3,735	+24.1%	₩829K ($576)
2025-03-27	BUY	PROGRAM	백진우 Jinwoo Baek	CEO	773	₩3,735	+24.1%	₩3M ($2K)
2025-03-27	BUY	PROGRAM	이만우 Lee Man-woo	CEO	90	₩3,735	+24.1%	₩336K ($233)
2025-03-27	BUY	PROGRAM	조성원 Cho Seong-won	vice president	50	₩3,735	+24.1%	₩187K ($130)
2025-03-27	BUY	PROGRAM	신성희 Seonghee Shin	vice president	35	₩3,735	+24.1%	₩131K ($91)
2025-03-27	BUY	PROGRAM	디에스티아이 DST I	-	206.4K	₩3,735	+24.1%	₩771M ($535K)
2025-03-27	BUY	PROGRAM	신형철 Shin Hyeong-cheol	Managing Director	73	₩3,735	+24.1%	₩273K ($189)
2025-03-27	BUY	PROGRAM	정덕우 Deokwoo Jeong	Managing Director	9	₩3,735	+24.1%	₩34K ($23)
2025-03-27	BUY	PROGRAM	하재량 Ha Jae-ryang	Managing Director	33	₩3,735	+24.1%	₩123K ($86)
2025-01-07	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.7K	₩3,701	+25.2%	₩10M ($7K)
2024-12-09	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.6K	₩3,510	+32.0%	₩9M ($6K)
2024-11-07	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.3K	₩4,242	+9.3%	₩10M ($7K)
2024-10-10	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.2K	₩4,331	+7.0%	₩10M ($7K)
2024-09-09	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.3K	₩4,223	+9.8%	₩10M ($7K)
2024-08-09	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.4K	₩4,051	+14.4%	₩10M ($7K)
2024-08-08	BUY	Market Buy	이만우 Lee Man-woo	CEO	1.5K	₩4,026	+15.1%	₩6M ($4K)
2024-07-09	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.3K	₩4,316	+7.4%	₩10M ($7K)
2024-06-10	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.2K	₩4,385	+5.7%	₩10M ($7K)
2024-05-08	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.1K	₩4,591	+1.0%	₩10M ($7K)
2024-05-07	BUY	Market Buy	조성원 Cho Seong-won	vice president	2.0K	₩4,562	+1.6%	₩9M ($6K)
2024-04-09	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.1K	₩4,567	+1.5%	₩10M ($7K)
2024-03-19	BUY	Market Buy	이만우 Lee Man-woo	CEO	1.5K	₩4,468	+3.7%	₩7M ($5K)
2024-03-07	BUY	Market Buy	백진우 Jinwoo Baek	CEO	2.2K	₩4,567	+1.5%	₩10M ($7K)

Frequently asked questions

Who has been buying Dongsung Chemical stock?: 4 distinct insiders have filed 21 disclosed insider purchases in Dongsung Chemical (102260), most recently on 2026-07-07. 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 Dongsung Chemical have?: Dongsung Chemical has 21 buy-side and 1 sell-side disclosures on record, covering ₩290M ($201K) in total reported value, spanning 2024-03-07 to 2026-07-07.
Where does StockDrifts get Dongsung Chemical 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 Dongsung Chemical. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.