Who has been buying SK stock?

4 distinct insiders have filed 7 disclosed insider purchases in SK (034730), most recently on 2026-05-18. 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 have?

SK has 7 buy-side and 7 sell-side disclosures on record, covering ₩46.5B ($32.3M) in total reported value, spanning 2024-03-05 to 2026-05-18.

Where does StockDrifts get SK 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.

SK 034730

Company

Insiders

Buys

Total Value

₩46.5B ($32.3M)

Avg Return

+22.12%

Last Filing

2026-05-18

SK (034730) has 7 disclosed insider purchases and 7 disclosed disposals on record, filed by 4 distinct insiders. Together those filings cover ₩46.5B ($32.3M) in reported transaction value. The earliest filing StockDrifts holds for SK is dated 2024-03-05; the most recent is 2026-05-18. 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 +22.12%, 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
2026-05-18	BUY	PROGRAM	윤풍영 Yoon Poong-young	president	6.1K	-	-	-
2026-05-15	BUY	PROGRAM	최영진 Youngjin Choi	executive	256	-	-	-
2026-05-15	BUY	PROGRAM	이수범 Subeom Lee	executive	238	-	-	-
2026-05-15	BUY	PROGRAM	박재범 Jay Park	executive	179	-	-	-
2026-05-15	BUY	PROGRAM	이시욱 Siwook Lee	executive	179	-	-	-
2026-05-15	BUY	PROGRAM	권병돈 Kwon Byeong-don	executive	179	-	-	-
2026-05-15	BUY	PROGRAM	김연태 Yeontae Kim	executive	790	-	-	-
2026-05-13	BUY	PROGRAM	장동현 Jang Dong-hyeon	vice president	1.2K	-	-	-
2026-04-02	BUY	자사주상여금	정종호 Jongho Jeong	Outside Director	144	₩308,000	+30.8%	₩44M ($31K)
2026-04-02	BUY	자사주상여금	김선희 Seonhee Kim	Outside Director	231	₩308,000	+30.8%	₩71M ($49K)
2026-04-02	BUY	자사주상여금	이관영 Gwanyoung Lee	Outside Director	144	₩308,000	+30.8%	₩44M ($31K)
2026-04-02	BUY	자사주상여금	윤치원 Chiwon Yoon	Outside Director	144	₩308,000	+30.8%	₩44M ($31K)
2026-04-02	BUY	자사주상여금	이계정 This account	Outside Director	144	₩308,000	+30.8%	₩44M ($31K)
2026-02-03	SELL	Market Sell	차재민 Jaemin Cha	general manager	-174	₩324,000	-17.0%	₩56M ($39K)
2025-04-02	BUY	자사주상여금	정종호 Jongho Jeong	Outside Director	360	₩128,100	+195.9%	₩46M ($32K)
2025-04-02	BUY	자사주상여금	윤치원 Chiwon Yoon	Outside Director	360	₩128,100	+195.9%	₩46M ($32K)
2025-04-02	BUY	자사주상여금	이관영 Gwanyoung Lee	Outside Director	360	₩128,100	+195.9%	₩46M ($32K)
2025-04-02	BUY	자사주상여금	김선희 Seonhee Kim	Outside Director	576	₩128,100	+195.9%	₩74M ($51K)
2025-03-24	BUY	신규선임	이창민 Changmin Lee	in charge	100	₩138,700	+173.3%	₩14M ($10K)
2025-01-01	BUY	신규선임	이현준 Hyeonjun Lee	general manager	200	₩132,000	+187.1%	₩26M ($18K)
2025-01-01	BUY	신규선임	고재웅 Go Jaewoong	in charge	45	₩132,000	+187.1%	₩6M ($4K)
2025-01-01	BUY	신규선임	김민환 Minhwan Kim	in charge	75	₩132,000	+187.1%	₩10M ($7K)
2025-01-01	BUY	신규선임	유정준 Jeongjun Yoo	vice president	11.4K	₩132,000	+187.1%	₩1.5B ($1.0M)
2024-08-07	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	30	₩134,900	+180.9%	₩4M ($3K)
2024-08-06	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	10	₩137,600	+175.4%	₩1M ($956)
2024-07-25	SELL	Market Sell	최재원 Jaewon Choi	General advisor	-49.0K	₩144,700	-161.9%	₩7.1B ($4.9M)
2024-07-24	SELL	Market Sell	최재원 Jaewon Choi	General advisor	-50.0K	₩143,800	-163.6%	₩7.2B ($5.0M)
2024-07-22	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	5	₩146,300	+159.1%	₩732K ($508)
2024-06-05	SELL	Market Sell	송수연 Sooyeon Song	in charge	-325	₩164,000	-131.1%	₩53M ($37K)
2024-05-31	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	5	₩176,200	+115.1%	₩881K ($612)
2024-05-27	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	5	₩150,300	+152.2%	₩752K ($522)
2024-05-23	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	15	₩150,100	+152.5%	₩2M ($2K)
2024-04-18	BUY	Market Buy	조현철 Jo Hyeon-cheol	in charge	5	₩156,800	+141.7%	₩784K ($544)
2024-04-02	BUY	자사주상여금	김병호 Kim Byeong-ho	Outside Director	345	₩178,000	+112.9%	₩61M ($43K)
2024-04-02	BUY	자사주상여금	김선희 Seonhee Kim	Outside Director	345	₩178,000	+112.9%	₩61M ($43K)
2024-04-02	BUY	자사주상여금	윤치원 Chiwon Yoon	Outside Director	345	₩178,000	+112.9%	₩61M ($43K)
2024-04-02	BUY	자사주상여금	염재호 Yeom Jae-ho	Outside Director	424	₩178,000	+112.9%	₩75M ($52K)
2024-03-08	SELL	Market Sell	최재원 Jaewon Choi	CTO (Executive Director)	-21.5K	₩189,700	-99.8%	₩4.1B ($2.8M)
2024-03-07	SELL	Market Sell	최재원 Jaewon Choi	CTO (Executive Director)	-32.5K	₩191,900	-97.5%	₩6.2B ($4.3M)
2024-03-05	SELL	Market Sell	최재원 Jaewon Choi	CTO (Executive Director)	-112.9K	₩193,000	-96.4%	₩21.8B ($15.1M)

Frequently asked questions

Who has been buying SK stock?: 4 distinct insiders have filed 7 disclosed insider purchases in SK (034730), most recently on 2026-05-18. 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 have?: SK has 7 buy-side and 7 sell-side disclosures on record, covering ₩46.5B ($32.3M) in total reported value, spanning 2024-03-05 to 2026-05-18.
Where does StockDrifts get SK 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 SK. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.