Who has been buying Chesis stock?

1 distinct insiders have filed 22 disclosed insider purchases in Chesis (033250), 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 Chesis have?

Chesis has 22 buy-side and 0 sell-side disclosures on record, covering ₩721M ($501K) in total reported value, spanning 2025-03-31 to 2026-07-07.

Where does StockDrifts get Chesis 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.

Chesis 033250

Company

체시스Chesis

Insiders

Buys

Total Value

₩721M ($501K)

Avg Return

-8.25%

Last Filing

2026-07-07

Chesis (033250) has 22 disclosed insider purchases and 0 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩721M ($501K) in reported transaction value. The earliest filing StockDrifts holds for Chesis is dated 2025-03-31; 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 -8.25%, 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
2026-07-07	BUY	Market Buy	엠에스에이치씨 MSHC	-	11.0K	₩3,345	-3.0%	₩37M ($26K)
2026-07-06	BUY	Market Buy	엠에스에이치씨 MSHC	-	10.0K	₩3,510	-7.5%	₩35M ($24K)
2026-07-03	BUY	Market Buy	엠에스에이치씨 MSHC	-	5.2K	₩3,465	-6.3%	₩18M ($13K)
2026-07-02	BUY	Market Buy	엠에스에이치씨 MSHC	-	6.0K	₩3,350	-3.1%	₩20M ($14K)
2026-07-01	BUY	Market Buy	엠에스에이치씨 MSHC	-	1.0K	₩3,430	+1.0%	₩3M ($2K)
2026-06-30	BUY	Market Buy	엠에스에이치씨 MSHC	-	11.0K	₩3,535	-2.0%	₩39M ($27K)
2026-06-29	BUY	Market Buy	엠에스에이치씨 MSHC	-	5.0K	₩3,385	+2.4%	₩17M ($12K)
2026-06-26	BUY	Market Buy	엠에스에이치씨 MSHC	-	5.0K	₩3,165	+9.5%	₩16M ($11K)
2026-06-25	BUY	Market Buy	엠에스에이치씨 MSHC	-	10.0K	₩3,425	+1.2%	₩34M ($24K)
2026-06-24	BUY	Market Buy	엠에스에이치씨 MSHC	-	10.0K	₩3,380	+2.5%	₩34M ($23K)
2026-06-23	BUY	Market Buy	엠에스에이치씨 MSHC	-	36.9K	₩3,535	-10.5%	₩130M ($90K)
2026-06-22	BUY	Market Buy	엠에스에이치씨 MSHC	-	33.4K	₩3,775	-16.2%	₩126M ($88K)
2026-06-19	BUY	Market Buy	엠에스에이치씨 MSHC	-	1.0K	₩4,030	-21.5%	₩4M ($3K)
2026-06-18	BUY	Market Buy	엠에스에이치씨 MSHC	-	21.5K	₩4,240	-25.4%	₩91M ($63K)
2026-06-17	BUY	Market Buy	엠에스에이치씨 MSHC	-	14.4K	₩4,315	-26.6%	₩62M ($43K)
2026-06-16	BUY	Market Buy	엠에스에이치씨 MSHC	-	12.6K	₩4,300	-26.4%	₩54M ($38K)
2026-06-15	BUY	Market Buy	엠에스에이치씨 MSHC	-	8.0K	-	-	-
2026-06-12	BUY	Market Buy	엠에스에이치씨 MSHC	-	11.1K	-	-	-
2026-06-11	BUY	Market Buy	엠에스에이치씨 MSHC	-	6.2K	-	-	-
2026-06-10	BUY	Market Buy	엠에스에이치씨 MSHC	-	5.2K	-	-	-
2026-06-09	BUY	Market Buy	엠에스에이치씨 MSHC	-	47.6K	-	-	-
2026-06-08	BUY	Market Buy	엠에스에이치씨 MSHC	-	16.1K	-	-	-
2026-04-16	SELL	주식병합	엠에스에이치씨 MSHC	-	-5.3M	₩999	+0.0%	₩5.3B ($3.7M)
2026-04-16	SELL	주식병합	이준성 Junseong Lee	vice president	-556.0K	₩999	+0.0%	₩555M ($386K)
2026-04-16	SELL	주식병합	이명곤 Lee Myung-gon	Chairman	-2.5M	₩999	+0.0%	₩2.5B ($1.8M)
2025-03-31	BUY	신규선임	최재원 Jaewon Choi	Other non-executive directors	690.0K	₩1,026	+3.9%	₩708M ($492K)

Frequently asked questions

Who has been buying Chesis stock?: 1 distinct insiders have filed 22 disclosed insider purchases in Chesis (033250), 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 Chesis have?: Chesis has 22 buy-side and 0 sell-side disclosures on record, covering ₩721M ($501K) in total reported value, spanning 2025-03-31 to 2026-07-07.
Where does StockDrifts get Chesis 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 Chesis. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.