Who has been buying SK Chemicals stock?

5 distinct insiders have filed 10 disclosed insider purchases in SK Chemicals (285130), most recently on 2026-06-04. 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 SK Chemicals have?

SK Chemicals has 10 buy-side and 1 sell-side disclosures on record, covering ₩405M ($281K) in total reported value, spanning 2025-01-01 to 2026-06-04.

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.

SK Chemicals 285130

Company

SK케미칼SK Chemicals

Insiders

Buys

Total Value

₩405M ($281K)

Avg Return

+39.76%

Last Filing

2026-06-04

SK Chemicals (285130) has 10 disclosed insider purchases and 1 disclosed disposals on record, filed by 5 distinct insiders. Together those filings cover ₩405M ($281K) in reported transaction value. The earliest filing StockDrifts holds for SK Chemicals is dated 2025-01-01; the most recent is 2026-06-04. Across these filings the average return since disclosure is +39.76%, 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
2026-06-04	BUY	Market Buy	정해욱 Jeong Hae-wook	implementation	700	₩42,000	-1.3%	₩29M ($20K)
2026-05-19	BUY	Market Buy	고정석 Fixed seat	general manager	1.0K	₩45,450	+0.4%	₩46M ($32K)
2026-05-08	SELL	Market Sell	윤원재 Wonjae Yoon	implementation	-54	₩55,400	+10.9%	₩3M ($2K)
2026-01-01	BUY	신규선임	정지효 Jeong Ji-hyo	implementation	112	₩66,100	-3.0%	₩7M ($5K)
2026-01-01	BUY	신규선임	고정화 immobilization	implementation	16	₩66,100	-3.0%	₩1M ($734)
2026-01-01	BUY	신규선임	정상민 Sangmin Jeong	implementation	15	₩66,100	-3.0%	₩992K ($689)
2026-01-01	BUY	신규선임	정지효 Jeong Ji-hyo	implementation	21	₩66,100	-3.0%	₩1M ($964)
2025-04-03	BUY	Market Buy	안재현 Jaehyun Ahn	CEO and President	3.8K	₩37,150	+72.5%	₩143M ($99K)
2025-04-02	BUY	Market Buy	안재현 Jaehyun Ahn	CEO and President	3.8K	₩38,550	+66.3%	₩146M ($101K)
2025-03-07	BUY	Market Buy	김응수 Eungsoo Kim	general manager	60	₩43,500	+47.4%	₩3M ($2K)
2025-03-06	BUY	Market Buy	김응수 Eungsoo Kim	general manager	120	₩42,300	+51.5%	₩5M ($4K)
2025-03-05	BUY	Market Buy	김응수 Eungsoo Kim	general manager	280	₩42,300	+51.5%	₩12M ($8K)
2025-02-27	BUY	Market Buy	김응수 Eungsoo Kim	general manager	70	₩43,900	+46.0%	₩3M ($2K)
2025-02-26	BUY	Market Buy	김응수 Eungsoo Kim	general manager	270	₩44,200	+45.0%	₩12M ($8K)
2025-02-25	BUY	Market Buy	김응수 Eungsoo Kim	general manager	80	₩43,600	+47.0%	₩3M ($2K)
2025-01-01	BUY	신규선임	윤원재 Wonjae Yoon	implementation	54	₩44,400	+44.4%	₩2M ($2K)
2025-01-01	BUY	신규선임	윤원재 Wonjae Yoon	implementation	39	₩44,400	+44.4%	₩2M ($1K)

Frequently asked questions

Who has been buying SK Chemicals stock?: 5 distinct insiders have filed 10 disclosed insider purchases in SK Chemicals (285130), most recently on 2026-06-04. 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 SK Chemicals have?: SK Chemicals has 10 buy-side and 1 sell-side disclosures on record, covering ₩405M ($281K) in total reported value, spanning 2025-01-01 to 2026-06-04.
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.